1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 2 "http://www.w3.org/TR/html4/strict.dtd"> 3<html> 4<head> 5<title>AST Matcher Reference</title> 6<link type="text/css" rel="stylesheet" href="../menu.css" /> 7<link type="text/css" rel="stylesheet" href="../content.css" /> 8<style type="text/css"> 9td { 10 padding: .33em; 11} 12td.doc { 13 display: none; 14 border-bottom: 1px solid black; 15} 16td.name:hover { 17 color: blue; 18 cursor: pointer; 19} 20</style> 21<script type="text/javascript"> 22function toggle(id) { 23 if (!id) return; 24 row = document.getElementById(id); 25 if (row.style.display != 'table-cell') 26 row.style.display = 'table-cell'; 27 else 28 row.style.display = 'none'; 29} 30</script> 31</head> 32<body onLoad="toggle(location.hash.substring(1, location.hash.length - 6))"> 33 34<!--#include virtual="../menu.html.incl"--> 35 36<div id="content"> 37 38<h1>AST Matcher Reference</h1> 39 40<p>This document shows all currently implemented matchers. The matchers are grouped 41by category and node type they match. You can click on matcher names to show the 42matcher's source documentation.</p> 43 44<p>There are three different basic categories of matchers: 45<ul> 46<li><a href="#decl-matchers">Node Matchers:</a> Matchers that match a specific type of AST node.</li> 47<li><a href="#narrowing-matchers">Narrowing Matchers:</a> Matchers that match attributes on AST nodes.</li> 48<li><a href="#traversal-matchers">Traversal Matchers:</a> Matchers that allow traversal between AST nodes.</li> 49</ul> 50</p> 51 52<p>Within each category the matchers are ordered by node type they match on. 53Note that if a matcher can match multiple node types, it will it will appear 54multiple times. This means that by searching for Matcher<Stmt> you can 55find all matchers that can be used to match on Stmt nodes.</p> 56 57<p>The exception to that rule are matchers that can match on any node. Those 58are marked with a * and are listed in the beginning of each category.</p> 59 60<p>Note that the categorization of matchers is a great help when you combine 61them into matcher expressions. You will usually want to form matcher expressions 62that read like english sentences by alternating between node matchers and 63narrowing or traversal matchers, like this: 64<pre> 65recordDecl(hasDescendant( 66 ifStmt(hasTrueExpression( 67 expr(hasDescendant( 68 ifStmt())))))) 69</pre> 70</p> 71 72<!-- ======================================================================= --> 73<h2 id="decl-matchers">Node Matchers</h2> 74<!-- ======================================================================= --> 75 76<p>Node matchers are at the core of matcher expressions - they specify the type 77of node that is expected. Every match expression starts with a node matcher, 78which can then be further refined with a narrowing or traversal matcher. All 79traversal matchers take node matchers as their arguments.</p> 80 81<p>For convenience, all node matchers take an arbitrary number of arguments 82and implicitly act as allOf matchers.</p> 83 84<p>Node matchers are the only matchers that support the bind("id") call to 85bind the matched node to the given string, to be later retrieved from the 86match callback.</p> 87 88<p>It is important to remember that the arguments to node matchers are 89predicates on the same node, just with additional information about the type. 90This is often useful to make matcher expression more readable by inlining bind 91calls into redundant node matchers inside another node matcher: 92<pre> 93// This binds the CXXRecordDecl to "id", as the decl() matcher will stay on 94// the same node. 95recordDecl(decl().bind("id"), hasName("::MyClass")) 96</pre> 97</p> 98 99<table> 100<tr style="text-align:left"><th>Return type</th><th>Name</th><th>Parameters</th></tr> 101<!-- START_DECL_MATCHERS --> 102 103<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>></td><td class="name" onclick="toggle('cxxCtorInitializer0')"><a name="cxxCtorInitializer0Anchor">cxxCtorInitializer</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>>...</td></tr> 104<tr><td colspan="4" class="doc" id="cxxCtorInitializer0"><pre>Matches constructor initializers. 105 106Examples matches i(42). 107 class C { 108 C() : i(42) {} 109 int i; 110 }; 111</pre></td></tr> 112 113 114<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('accessSpecDecl0')"><a name="accessSpecDecl0Anchor">accessSpecDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AccessSpecDecl.html">AccessSpecDecl</a>>...</td></tr> 115<tr><td colspan="4" class="doc" id="accessSpecDecl0"><pre>Matches C++ access specifier declarations. 116 117Given 118 class C { 119 public: 120 int a; 121 }; 122accessSpecDecl() 123 matches 'public:' 124</pre></td></tr> 125 126 127<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('classTemplateDecl0')"><a name="classTemplateDecl0Anchor">classTemplateDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ClassTemplateDecl.html">ClassTemplateDecl</a>>...</td></tr> 128<tr><td colspan="4" class="doc" id="classTemplateDecl0"><pre>Matches C++ class template declarations. 129 130Example matches Z 131 template<class T> class Z {}; 132</pre></td></tr> 133 134 135<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('classTemplateSpecializationDecl0')"><a name="classTemplateSpecializationDecl0Anchor">classTemplateSpecializationDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ClassTemplateSpecializationDecl.html">ClassTemplateSpecializationDecl</a>>...</td></tr> 136<tr><td colspan="4" class="doc" id="classTemplateSpecializationDecl0"><pre>Matches C++ class template specializations. 137 138Given 139 template<typename T> class A {}; 140 template<> class A<double> {}; 141 A<int> a; 142classTemplateSpecializationDecl() 143 matches the specializations A<int> and A<double> 144</pre></td></tr> 145 146 147<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('cxxConstructorDecl0')"><a name="cxxConstructorDecl0Anchor">cxxConstructorDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructorDecl.html">CXXConstructorDecl</a>>...</td></tr> 148<tr><td colspan="4" class="doc" id="cxxConstructorDecl0"><pre>Matches C++ constructor declarations. 149 150Example matches Foo::Foo() and Foo::Foo(int) 151 class Foo { 152 public: 153 Foo(); 154 Foo(int); 155 int DoSomething(); 156 }; 157</pre></td></tr> 158 159 160<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('cxxConversionDecl0')"><a name="cxxConversionDecl0Anchor">cxxConversionDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConversionDecl.html">CXXConversionDecl</a>>...</td></tr> 161<tr><td colspan="4" class="doc" id="cxxConversionDecl0"><pre>Matches conversion operator declarations. 162 163Example matches the operator. 164 class X { operator int() const; }; 165</pre></td></tr> 166 167 168<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('cxxDestructorDecl0')"><a name="cxxDestructorDecl0Anchor">cxxDestructorDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXDestructorDecl.html">CXXDestructorDecl</a>>...</td></tr> 169<tr><td colspan="4" class="doc" id="cxxDestructorDecl0"><pre>Matches explicit C++ destructor declarations. 170 171Example matches Foo::~Foo() 172 class Foo { 173 public: 174 virtual ~Foo(); 175 }; 176</pre></td></tr> 177 178 179<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('cxxMethodDecl0')"><a name="cxxMethodDecl0Anchor">cxxMethodDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>>...</td></tr> 180<tr><td colspan="4" class="doc" id="cxxMethodDecl0"><pre>Matches method declarations. 181 182Example matches y 183 class X { void y(); }; 184</pre></td></tr> 185 186 187<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('cxxRecordDecl0')"><a name="cxxRecordDecl0Anchor">cxxRecordDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>>...</td></tr> 188<tr><td colspan="4" class="doc" id="cxxRecordDecl0"><pre>Matches C++ class declarations. 189 190Example matches X, Z 191 class X; 192 template<class T> class Z {}; 193</pre></td></tr> 194 195 196<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('decl0')"><a name="decl0Anchor">decl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>...</td></tr> 197<tr><td colspan="4" class="doc" id="decl0"><pre>Matches declarations. 198 199Examples matches X, C, and the friend declaration inside C; 200 void X(); 201 class C { 202 friend X; 203 }; 204</pre></td></tr> 205 206 207<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('declaratorDecl0')"><a name="declaratorDecl0Anchor">declaratorDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclaratorDecl.html">DeclaratorDecl</a>>...</td></tr> 208<tr><td colspan="4" class="doc" id="declaratorDecl0"><pre>Matches declarator declarations (field, variable, function 209and non-type template parameter declarations). 210 211Given 212 class X { int y; }; 213declaratorDecl() 214 matches int y. 215</pre></td></tr> 216 217 218<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('enumConstantDecl0')"><a name="enumConstantDecl0Anchor">enumConstantDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumConstantDecl.html">EnumConstantDecl</a>>...</td></tr> 219<tr><td colspan="4" class="doc" id="enumConstantDecl0"><pre>Matches enum constants. 220 221Example matches A, B, C 222 enum X { 223 A, B, C 224 }; 225</pre></td></tr> 226 227 228<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('enumDecl0')"><a name="enumDecl0Anchor">enumDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumDecl.html">EnumDecl</a>>...</td></tr> 229<tr><td colspan="4" class="doc" id="enumDecl0"><pre>Matches enum declarations. 230 231Example matches X 232 enum X { 233 A, B, C 234 }; 235</pre></td></tr> 236 237 238<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('fieldDecl0')"><a name="fieldDecl0Anchor">fieldDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FieldDecl.html">FieldDecl</a>>...</td></tr> 239<tr><td colspan="4" class="doc" id="fieldDecl0"><pre>Matches field declarations. 240 241Given 242 class X { int m; }; 243fieldDecl() 244 matches 'm'. 245</pre></td></tr> 246 247 248<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('friendDecl0')"><a name="friendDecl0Anchor">friendDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FriendDecl.html">FriendDecl</a>>...</td></tr> 249<tr><td colspan="4" class="doc" id="friendDecl0"><pre>Matches friend declarations. 250 251Given 252 class X { friend void foo(); }; 253friendDecl() 254 matches 'friend void foo()'. 255</pre></td></tr> 256 257 258<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('functionDecl0')"><a name="functionDecl0Anchor">functionDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>>...</td></tr> 259<tr><td colspan="4" class="doc" id="functionDecl0"><pre>Matches function declarations. 260 261Example matches f 262 void f(); 263</pre></td></tr> 264 265 266<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('functionTemplateDecl0')"><a name="functionTemplateDecl0Anchor">functionTemplateDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionTemplateDecl.html">FunctionTemplateDecl</a>>...</td></tr> 267<tr><td colspan="4" class="doc" id="functionTemplateDecl0"><pre>Matches C++ function template declarations. 268 269Example matches f 270 template<class T> void f(T t) {} 271</pre></td></tr> 272 273 274<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('labelDecl0')"><a name="labelDecl0Anchor">labelDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelDecl.html">LabelDecl</a>>...</td></tr> 275<tr><td colspan="4" class="doc" id="labelDecl0"><pre>Matches a declaration of label. 276 277Given 278 goto FOO; 279 FOO: bar(); 280labelDecl() 281 matches 'FOO:' 282</pre></td></tr> 283 284 285<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('linkageSpecDecl0')"><a name="linkageSpecDecl0Anchor">linkageSpecDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LinkageSpecDecl.html">LinkageSpecDecl</a>>...</td></tr> 286<tr><td colspan="4" class="doc" id="linkageSpecDecl0"><pre>Matches a declaration of a linkage specification. 287 288Given 289 extern "C" {} 290linkageSpecDecl() 291 matches "extern "C" {}" 292</pre></td></tr> 293 294 295<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('namedDecl0')"><a name="namedDecl0Anchor">namedDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamedDecl.html">NamedDecl</a>>...</td></tr> 296<tr><td colspan="4" class="doc" id="namedDecl0"><pre>Matches a declaration of anything that could have a name. 297 298Example matches X, S, the anonymous union type, i, and U; 299 typedef int X; 300 struct S { 301 union { 302 int i; 303 } U; 304 }; 305</pre></td></tr> 306 307 308<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('namespaceAliasDecl0')"><a name="namespaceAliasDecl0Anchor">namespaceAliasDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamespaceAliasDecl.html">NamespaceAliasDecl</a>>...</td></tr> 309<tr><td colspan="4" class="doc" id="namespaceAliasDecl0"><pre>Matches a declaration of a namespace alias. 310 311Given 312 namespace test {} 313 namespace alias = ::test; 314namespaceAliasDecl() 315 matches "namespace alias" but not "namespace test" 316</pre></td></tr> 317 318 319<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('namespaceDecl0')"><a name="namespaceDecl0Anchor">namespaceDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamespaceDecl.html">NamespaceDecl</a>>...</td></tr> 320<tr><td colspan="4" class="doc" id="namespaceDecl0"><pre>Matches a declaration of a namespace. 321 322Given 323 namespace {} 324 namespace test {} 325namespaceDecl() 326 matches "namespace {}" and "namespace test {}" 327</pre></td></tr> 328 329 330<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('nonTypeTemplateParmDecl0')"><a name="nonTypeTemplateParmDecl0Anchor">nonTypeTemplateParmDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NonTypeTemplateParmDecl.html">NonTypeTemplateParmDecl</a>>...</td></tr> 331<tr><td colspan="4" class="doc" id="nonTypeTemplateParmDecl0"><pre>Matches non-type template parameter declarations. 332 333Given 334 template <typename T, int N> struct C {}; 335nonTypeTemplateParmDecl() 336 matches 'N', but not 'T'. 337</pre></td></tr> 338 339 340<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('objcInterfaceDecl0')"><a name="objcInterfaceDecl0Anchor">objcInterfaceDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCInterfaceDecl.html">ObjCInterfaceDecl</a>>...</td></tr> 341<tr><td colspan="4" class="doc" id="objcInterfaceDecl0"><pre>Matches Objective-C interface declarations. 342 343Example matches Foo 344 @interface Foo 345 @end 346</pre></td></tr> 347 348 349<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('parmVarDecl0')"><a name="parmVarDecl0Anchor">parmVarDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ParmVarDecl.html">ParmVarDecl</a>>...</td></tr> 350<tr><td colspan="4" class="doc" id="parmVarDecl0"><pre>Matches parameter variable declarations. 351 352Given 353 void f(int x); 354parmVarDecl() 355 matches int x. 356</pre></td></tr> 357 358 359<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('recordDecl0')"><a name="recordDecl0Anchor">recordDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordDecl.html">RecordDecl</a>>...</td></tr> 360<tr><td colspan="4" class="doc" id="recordDecl0"><pre>Matches class, struct, and union declarations. 361 362Example matches X, Z, U, and S 363 class X; 364 template<class T> class Z {}; 365 struct S {}; 366 union U {}; 367</pre></td></tr> 368 369 370<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('staticAssertDecl0')"><a name="staticAssertDecl0Anchor">staticAssertDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1StaticAssertDecl.html">StaticAssertDecl</a>>...</td></tr> 371<tr><td colspan="4" class="doc" id="staticAssertDecl0"><pre>Matches a C++ static_assert declaration. 372 373Example: 374 staticAssertExpr() 375matches 376 static_assert(sizeof(S) == sizeof(int)) 377in 378 struct S { 379 int x; 380 }; 381 static_assert(sizeof(S) == sizeof(int)); 382</pre></td></tr> 383 384 385<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('templateTypeParmDecl0')"><a name="templateTypeParmDecl0Anchor">templateTypeParmDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmDecl.html">TemplateTypeParmDecl</a>>...</td></tr> 386<tr><td colspan="4" class="doc" id="templateTypeParmDecl0"><pre>Matches template type parameter declarations. 387 388Given 389 template <typename T, int N> struct C {}; 390templateTypeParmDecl() 391 matches 'T', but not 'N'. 392</pre></td></tr> 393 394 395<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('translationUnitDecl0')"><a name="translationUnitDecl0Anchor">translationUnitDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TranslationUnitDecl.html">TranslationUnitDecl</a>>...</td></tr> 396<tr><td colspan="4" class="doc" id="translationUnitDecl0"><pre>Matches the top declaration context. 397 398Given 399 int X; 400 namespace NS { 401 int Y; 402 } namespace NS 403decl(hasDeclContext(translationUnitDecl())) 404 matches "int X", but not "int Y". 405</pre></td></tr> 406 407 408<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('typeAliasDecl0')"><a name="typeAliasDecl0Anchor">typeAliasDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeAliasDecl.html">TypeAliasDecl</a>>...</td></tr> 409<tr><td colspan="4" class="doc" id="typeAliasDecl0"><pre>Matches type alias declarations. 410 411Given 412 typedef int X; 413 using Y = int; 414typeAliasDecl() 415 matches "using Y = int", but not "typedef int X" 416</pre></td></tr> 417 418 419<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('typedefDecl0')"><a name="typedefDecl0Anchor">typedefDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefDecl.html">TypedefDecl</a>>...</td></tr> 420<tr><td colspan="4" class="doc" id="typedefDecl0"><pre>Matches typedef declarations. 421 422Given 423 typedef int X; 424 using Y = int; 425typedefDecl() 426 matches "typedef int X", but not "using Y = int" 427</pre></td></tr> 428 429 430<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('typedefNameDecl0')"><a name="typedefNameDecl0Anchor">typedefNameDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefNameDecl.html">TypedefNameDecl</a>>...</td></tr> 431<tr><td colspan="4" class="doc" id="typedefNameDecl0"><pre>Matches typedef name declarations. 432 433Given 434 typedef int X; 435 using Y = int; 436typedefNameDecl() 437 matches "typedef int X" and "using Y = int" 438</pre></td></tr> 439 440 441<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('unresolvedUsingTypenameDecl0')"><a name="unresolvedUsingTypenameDecl0Anchor">unresolvedUsingTypenameDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingTypenameDecl.html">UnresolvedUsingTypenameDecl</a>>...</td></tr> 442<tr><td colspan="4" class="doc" id="unresolvedUsingTypenameDecl0"><pre>Matches unresolved using value declarations that involve the 443typename. 444 445Given 446 template <typename T> 447 struct Base { typedef T Foo; }; 448 449 template<typename T> 450 struct S : private Base<T> { 451 using typename Base<T>::Foo; 452 }; 453unresolvedUsingTypenameDecl() 454 matches using Base<T>::Foo </pre></td></tr> 455 456 457<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('unresolvedUsingValueDecl0')"><a name="unresolvedUsingValueDecl0Anchor">unresolvedUsingValueDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingValueDecl.html">UnresolvedUsingValueDecl</a>>...</td></tr> 458<tr><td colspan="4" class="doc" id="unresolvedUsingValueDecl0"><pre>Matches unresolved using value declarations. 459 460Given 461 template<typename X> 462 class C : private X { 463 using X::x; 464 }; 465unresolvedUsingValueDecl() 466 matches using X::x </pre></td></tr> 467 468 469<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('usingDecl0')"><a name="usingDecl0Anchor">usingDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UsingDecl.html">UsingDecl</a>>...</td></tr> 470<tr><td colspan="4" class="doc" id="usingDecl0"><pre>Matches using declarations. 471 472Given 473 namespace X { int x; } 474 using X::x; 475usingDecl() 476 matches using X::x </pre></td></tr> 477 478 479<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('usingDirectiveDecl0')"><a name="usingDirectiveDecl0Anchor">usingDirectiveDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UsingDirectiveDecl.html">UsingDirectiveDecl</a>>...</td></tr> 480<tr><td colspan="4" class="doc" id="usingDirectiveDecl0"><pre>Matches using namespace declarations. 481 482Given 483 namespace X { int x; } 484 using namespace X; 485usingDirectiveDecl() 486 matches using namespace X </pre></td></tr> 487 488 489<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('valueDecl0')"><a name="valueDecl0Anchor">valueDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>>...</td></tr> 490<tr><td colspan="4" class="doc" id="valueDecl0"><pre>Matches any value declaration. 491 492Example matches A, B, C and F 493 enum X { A, B, C }; 494 void F(); 495</pre></td></tr> 496 497 498<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('varDecl0')"><a name="varDecl0Anchor">varDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>>...</td></tr> 499<tr><td colspan="4" class="doc" id="varDecl0"><pre>Matches variable declarations. 500 501Note: this does not match declarations of member variables, which are 502"field" declarations in Clang parlance. 503 504Example matches a 505 int a; 506</pre></td></tr> 507 508 509<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifierLoc.html">NestedNameSpecifierLoc</a>></td><td class="name" onclick="toggle('nestedNameSpecifierLoc0')"><a name="nestedNameSpecifierLoc0Anchor">nestedNameSpecifierLoc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifierLoc.html">NestedNameSpecifierLoc</a>>...</td></tr> 510<tr><td colspan="4" class="doc" id="nestedNameSpecifierLoc0"><pre>Same as nestedNameSpecifier but matches NestedNameSpecifierLoc. 511</pre></td></tr> 512 513 514<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifier.html">NestedNameSpecifier</a>></td><td class="name" onclick="toggle('nestedNameSpecifier0')"><a name="nestedNameSpecifier0Anchor">nestedNameSpecifier</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifier.html">NestedNameSpecifier</a>>...</td></tr> 515<tr><td colspan="4" class="doc" id="nestedNameSpecifier0"><pre>Matches nested name specifiers. 516 517Given 518 namespace ns { 519 struct A { static void f(); }; 520 void A::f() {} 521 void g() { A::f(); } 522 } 523 ns::A a; 524nestedNameSpecifier() 525 matches "ns::" and both "A::" 526</pre></td></tr> 527 528 529<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('qualType0')"><a name="qualType0Anchor">qualType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>...</td></tr> 530<tr><td colspan="4" class="doc" id="qualType0"><pre>Matches QualTypes in the clang AST. 531</pre></td></tr> 532 533 534<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('addrLabelExpr0')"><a name="addrLabelExpr0Anchor">addrLabelExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>...</td></tr> 535<tr><td colspan="4" class="doc" id="addrLabelExpr0"><pre>Matches address of label statements (GNU extension). 536 537Given 538 FOO: bar(); 539 void *ptr = &&FOO; 540 goto *bar; 541addrLabelExpr() 542 matches '&&FOO' 543</pre></td></tr> 544 545 546<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('arraySubscriptExpr0')"><a name="arraySubscriptExpr0Anchor">arraySubscriptExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArraySubscriptExpr.html">ArraySubscriptExpr</a>>...</td></tr> 547<tr><td colspan="4" class="doc" id="arraySubscriptExpr0"><pre>Matches array subscript expressions. 548 549Given 550 int i = a[1]; 551arraySubscriptExpr() 552 matches "a[1]" 553</pre></td></tr> 554 555 556<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('asmStmt0')"><a name="asmStmt0Anchor">asmStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AsmStmt.html">AsmStmt</a>>...</td></tr> 557<tr><td colspan="4" class="doc" id="asmStmt0"><pre>Matches asm statements. 558 559 int i = 100; 560 __asm("mov al, 2"); 561asmStmt() 562 matches '__asm("mov al, 2")' 563</pre></td></tr> 564 565 566<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('atomicExpr0')"><a name="atomicExpr0Anchor">atomicExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AtomicExpr.html">AtomicExpr</a>>...</td></tr> 567<tr><td colspan="4" class="doc" id="atomicExpr0"><pre>Matches atomic builtins. 568Example matches __atomic_load_n(ptr, 1) 569 void foo() { int *ptr; __atomic_load_n(ptr, 1); } 570</pre></td></tr> 571 572 573<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('binaryConditionalOperator0')"><a name="binaryConditionalOperator0Anchor">binaryConditionalOperator</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BinaryConditionalOperator.html">BinaryConditionalOperator</a>>...</td></tr> 574<tr><td colspan="4" class="doc" id="binaryConditionalOperator0"><pre>Matches binary conditional operator expressions (GNU extension). 575 576Example matches a ?: b 577 (a ?: b) + 42; 578</pre></td></tr> 579 580 581<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('binaryOperator0')"><a name="binaryOperator0Anchor">binaryOperator</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BinaryOperator.html">BinaryOperator</a>>...</td></tr> 582<tr><td colspan="4" class="doc" id="binaryOperator0"><pre>Matches binary operator expressions. 583 584Example matches a || b 585 !(a || b) 586</pre></td></tr> 587 588 589<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('breakStmt0')"><a name="breakStmt0Anchor">breakStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BreakStmt.html">BreakStmt</a>>...</td></tr> 590<tr><td colspan="4" class="doc" id="breakStmt0"><pre>Matches break statements. 591 592Given 593 while (true) { break; } 594breakStmt() 595 matches 'break' 596</pre></td></tr> 597 598 599<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cStyleCastExpr0')"><a name="cStyleCastExpr0Anchor">cStyleCastExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CStyleCastExpr.html">CStyleCastExpr</a>>...</td></tr> 600<tr><td colspan="4" class="doc" id="cStyleCastExpr0"><pre>Matches a C-style cast expression. 601 602Example: Matches (int*) 2.2f in 603 int i = (int) 2.2f; 604</pre></td></tr> 605 606 607<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('callExpr0')"><a name="callExpr0Anchor">callExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>...</td></tr> 608<tr><td colspan="4" class="doc" id="callExpr0"><pre>Matches call expressions. 609 610Example matches x.y() and y() 611 X x; 612 x.y(); 613 y(); 614</pre></td></tr> 615 616 617<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('caseStmt0')"><a name="caseStmt0Anchor">caseStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CaseStmt.html">CaseStmt</a>>...</td></tr> 618<tr><td colspan="4" class="doc" id="caseStmt0"><pre>Matches case statements inside switch statements. 619 620Given 621 switch(a) { case 42: break; default: break; } 622caseStmt() 623 matches 'case 42: break;'. 624</pre></td></tr> 625 626 627<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('castExpr0')"><a name="castExpr0Anchor">castExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CastExpr.html">CastExpr</a>>...</td></tr> 628<tr><td colspan="4" class="doc" id="castExpr0"><pre>Matches any cast nodes of Clang's AST. 629 630Example: castExpr() matches each of the following: 631 (int) 3; 632 const_cast<Expr *>(SubExpr); 633 char c = 0; 634but does not match 635 int i = (0); 636 int k = 0; 637</pre></td></tr> 638 639 640<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('characterLiteral0')"><a name="characterLiteral0Anchor">characterLiteral</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CharacterLiteral.html">CharacterLiteral</a>>...</td></tr> 641<tr><td colspan="4" class="doc" id="characterLiteral0"><pre>Matches character literals (also matches wchar_t). 642 643Not matching Hex-encoded chars (e.g. 0x1234, which is a IntegerLiteral), 644though. 645 646Example matches 'a', L'a' 647 char ch = 'a'; 648 wchar_t chw = L'a'; 649</pre></td></tr> 650 651 652<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('compoundLiteralExpr0')"><a name="compoundLiteralExpr0Anchor">compoundLiteralExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CompoundLiteralExpr.html">CompoundLiteralExpr</a>>...</td></tr> 653<tr><td colspan="4" class="doc" id="compoundLiteralExpr0"><pre>Matches compound (i.e. non-scalar) literals 654 655Example match: {1}, (1, 2) 656 int array[4] = {1}; 657 vector int myvec = (vector int)(1, 2); 658</pre></td></tr> 659 660 661<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('compoundStmt0')"><a name="compoundStmt0Anchor">compoundStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CompoundStmt.html">CompoundStmt</a>>...</td></tr> 662<tr><td colspan="4" class="doc" id="compoundStmt0"><pre>Matches compound statements. 663 664Example matches '{}' and '{{}}'in 'for (;;) {{}}' 665 for (;;) {{}} 666</pre></td></tr> 667 668 669<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('conditionalOperator0')"><a name="conditionalOperator0Anchor">conditionalOperator</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ConditionalOperator.html">ConditionalOperator</a>>...</td></tr> 670<tr><td colspan="4" class="doc" id="conditionalOperator0"><pre>Matches conditional operator expressions. 671 672Example matches a ? b : c 673 (a ? b : c) + 42 674</pre></td></tr> 675 676 677<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('continueStmt0')"><a name="continueStmt0Anchor">continueStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ContinueStmt.html">ContinueStmt</a>>...</td></tr> 678<tr><td colspan="4" class="doc" id="continueStmt0"><pre>Matches continue statements. 679 680Given 681 while (true) { continue; } 682continueStmt() 683 matches 'continue' 684</pre></td></tr> 685 686 687<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cudaKernelCallExpr0')"><a name="cudaKernelCallExpr0Anchor">cudaKernelCallExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CUDAKernelCallExpr.html">CUDAKernelCallExpr</a>>...</td></tr> 688<tr><td colspan="4" class="doc" id="cudaKernelCallExpr0"><pre>Matches CUDA kernel call expression. 689 690Example matches, 691 kernel<<<i,j>>>(); 692</pre></td></tr> 693 694 695<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxBindTemporaryExpr0')"><a name="cxxBindTemporaryExpr0Anchor">cxxBindTemporaryExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXBindTemporaryExpr.html">CXXBindTemporaryExpr</a>>...</td></tr> 696<tr><td colspan="4" class="doc" id="cxxBindTemporaryExpr0"><pre>Matches nodes where temporaries are created. 697 698Example matches FunctionTakesString(GetStringByValue()) 699 (matcher = cxxBindTemporaryExpr()) 700 FunctionTakesString(GetStringByValue()); 701 FunctionTakesStringByPointer(GetStringPointer()); 702</pre></td></tr> 703 704 705<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxBoolLiteral0')"><a name="cxxBoolLiteral0Anchor">cxxBoolLiteral</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXBoolLiteralExpr.html">CXXBoolLiteralExpr</a>>...</td></tr> 706<tr><td colspan="4" class="doc" id="cxxBoolLiteral0"><pre>Matches bool literals. 707 708Example matches true 709 true 710</pre></td></tr> 711 712 713<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxCatchStmt0')"><a name="cxxCatchStmt0Anchor">cxxCatchStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCatchStmt.html">CXXCatchStmt</a>>...</td></tr> 714<tr><td colspan="4" class="doc" id="cxxCatchStmt0"><pre>Matches catch statements. 715 716 try {} catch(int i) {} 717cxxCatchStmt() 718 matches 'catch(int i)' 719</pre></td></tr> 720 721 722<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxConstCastExpr0')"><a name="cxxConstCastExpr0Anchor">cxxConstCastExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstCastExpr.html">CXXConstCastExpr</a>>...</td></tr> 723<tr><td colspan="4" class="doc" id="cxxConstCastExpr0"><pre>Matches a const_cast expression. 724 725Example: Matches const_cast<int*>(&r) in 726 int n = 42; 727 const int &r(n); 728 int* p = const_cast<int*>(&r); 729</pre></td></tr> 730 731 732<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxConstructExpr0')"><a name="cxxConstructExpr0Anchor">cxxConstructExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>...</td></tr> 733<tr><td colspan="4" class="doc" id="cxxConstructExpr0"><pre>Matches constructor call expressions (including implicit ones). 734 735Example matches string(ptr, n) and ptr within arguments of f 736 (matcher = cxxConstructExpr()) 737 void f(const string &a, const string &b); 738 char *ptr; 739 int n; 740 f(string(ptr, n), ptr); 741</pre></td></tr> 742 743 744<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxDefaultArgExpr0')"><a name="cxxDefaultArgExpr0Anchor">cxxDefaultArgExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXDefaultArgExpr.html">CXXDefaultArgExpr</a>>...</td></tr> 745<tr><td colspan="4" class="doc" id="cxxDefaultArgExpr0"><pre>Matches the value of a default argument at the call site. 746 747Example matches the CXXDefaultArgExpr placeholder inserted for the 748 default value of the second parameter in the call expression f(42) 749 (matcher = cxxDefaultArgExpr()) 750 void f(int x, int y = 0); 751 f(42); 752</pre></td></tr> 753 754 755<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxDeleteExpr0')"><a name="cxxDeleteExpr0Anchor">cxxDeleteExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXDeleteExpr.html">CXXDeleteExpr</a>>...</td></tr> 756<tr><td colspan="4" class="doc" id="cxxDeleteExpr0"><pre>Matches delete expressions. 757 758Given 759 delete X; 760cxxDeleteExpr() 761 matches 'delete X'. 762</pre></td></tr> 763 764 765<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxDynamicCastExpr0')"><a name="cxxDynamicCastExpr0Anchor">cxxDynamicCastExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXDynamicCastExpr.html">CXXDynamicCastExpr</a>>...</td></tr> 766<tr><td colspan="4" class="doc" id="cxxDynamicCastExpr0"><pre>Matches a dynamic_cast expression. 767 768Example: 769 cxxDynamicCastExpr() 770matches 771 dynamic_cast<D*>(&b); 772in 773 struct B { virtual ~B() {} }; struct D : B {}; 774 B b; 775 D* p = dynamic_cast<D*>(&b); 776</pre></td></tr> 777 778 779<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxForRangeStmt0')"><a name="cxxForRangeStmt0Anchor">cxxForRangeStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXForRangeStmt.html">CXXForRangeStmt</a>>...</td></tr> 780<tr><td colspan="4" class="doc" id="cxxForRangeStmt0"><pre>Matches range-based for statements. 781 782cxxForRangeStmt() matches 'for (auto a : i)' 783 int i[] = {1, 2, 3}; for (auto a : i); 784 for(int j = 0; j < 5; ++j); 785</pre></td></tr> 786 787 788<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxFunctionalCastExpr0')"><a name="cxxFunctionalCastExpr0Anchor">cxxFunctionalCastExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXFunctionalCastExpr.html">CXXFunctionalCastExpr</a>>...</td></tr> 789<tr><td colspan="4" class="doc" id="cxxFunctionalCastExpr0"><pre>Matches functional cast expressions 790 791Example: Matches Foo(bar); 792 Foo f = bar; 793 Foo g = (Foo) bar; 794 Foo h = Foo(bar); 795</pre></td></tr> 796 797 798<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxMemberCallExpr0')"><a name="cxxMemberCallExpr0Anchor">cxxMemberCallExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMemberCallExpr.html">CXXMemberCallExpr</a>>...</td></tr> 799<tr><td colspan="4" class="doc" id="cxxMemberCallExpr0"><pre>Matches member call expressions. 800 801Example matches x.y() 802 X x; 803 x.y(); 804</pre></td></tr> 805 806 807<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxNewExpr0')"><a name="cxxNewExpr0Anchor">cxxNewExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXNewExpr.html">CXXNewExpr</a>>...</td></tr> 808<tr><td colspan="4" class="doc" id="cxxNewExpr0"><pre>Matches new expressions. 809 810Given 811 new X; 812cxxNewExpr() 813 matches 'new X'. 814</pre></td></tr> 815 816 817<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxNullPtrLiteralExpr0')"><a name="cxxNullPtrLiteralExpr0Anchor">cxxNullPtrLiteralExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXNullPtrLiteralExpr.html">CXXNullPtrLiteralExpr</a>>...</td></tr> 818<tr><td colspan="4" class="doc" id="cxxNullPtrLiteralExpr0"><pre>Matches nullptr literal. 819</pre></td></tr> 820 821 822<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxOperatorCallExpr0')"><a name="cxxOperatorCallExpr0Anchor">cxxOperatorCallExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXOperatorCallExpr.html">CXXOperatorCallExpr</a>>...</td></tr> 823<tr><td colspan="4" class="doc" id="cxxOperatorCallExpr0"><pre>Matches overloaded operator calls. 824 825Note that if an operator isn't overloaded, it won't match. Instead, use 826binaryOperator matcher. 827Currently it does not match operators such as new delete. 828FIXME: figure out why these do not match? 829 830Example matches both operator<<((o << b), c) and operator<<(o, b) 831 (matcher = cxxOperatorCallExpr()) 832 ostream &operator<< (ostream &out, int i) { }; 833 ostream &o; int b = 1, c = 1; 834 o << b << c; 835</pre></td></tr> 836 837 838<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxReinterpretCastExpr0')"><a name="cxxReinterpretCastExpr0Anchor">cxxReinterpretCastExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXReinterpretCastExpr.html">CXXReinterpretCastExpr</a>>...</td></tr> 839<tr><td colspan="4" class="doc" id="cxxReinterpretCastExpr0"><pre>Matches a reinterpret_cast expression. 840 841Either the source expression or the destination type can be matched 842using has(), but hasDestinationType() is more specific and can be 843more readable. 844 845Example matches reinterpret_cast<char*>(&p) in 846 void* p = reinterpret_cast<char*>(&p); 847</pre></td></tr> 848 849 850<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxStaticCastExpr0')"><a name="cxxStaticCastExpr0Anchor">cxxStaticCastExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXStaticCastExpr.html">CXXStaticCastExpr</a>>...</td></tr> 851<tr><td colspan="4" class="doc" id="cxxStaticCastExpr0"><pre>Matches a C++ static_cast expression. 852 853See also: hasDestinationType 854See also: reinterpretCast 855 856Example: 857 cxxStaticCastExpr() 858matches 859 static_cast<long>(8) 860in 861 long eight(static_cast<long>(8)); 862</pre></td></tr> 863 864 865<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxTemporaryObjectExpr0')"><a name="cxxTemporaryObjectExpr0Anchor">cxxTemporaryObjectExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXTemporaryObjectExpr.html">CXXTemporaryObjectExpr</a>>...</td></tr> 866<tr><td colspan="4" class="doc" id="cxxTemporaryObjectExpr0"><pre>Matches functional cast expressions having N != 1 arguments 867 868Example: Matches Foo(bar, bar) 869 Foo h = Foo(bar, bar); 870</pre></td></tr> 871 872 873<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxThisExpr0')"><a name="cxxThisExpr0Anchor">cxxThisExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXThisExpr.html">CXXThisExpr</a>>...</td></tr> 874<tr><td colspan="4" class="doc" id="cxxThisExpr0"><pre>Matches implicit and explicit this expressions. 875 876Example matches the implicit this expression in "return i". 877 (matcher = cxxThisExpr()) 878struct foo { 879 int i; 880 int f() { return i; } 881}; 882</pre></td></tr> 883 884 885<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxThrowExpr0')"><a name="cxxThrowExpr0Anchor">cxxThrowExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXThrowExpr.html">CXXThrowExpr</a>>...</td></tr> 886<tr><td colspan="4" class="doc" id="cxxThrowExpr0"><pre>Matches throw expressions. 887 888 try { throw 5; } catch(int i) {} 889cxxThrowExpr() 890 matches 'throw 5' 891</pre></td></tr> 892 893 894<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxTryStmt0')"><a name="cxxTryStmt0Anchor">cxxTryStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXTryStmt.html">CXXTryStmt</a>>...</td></tr> 895<tr><td colspan="4" class="doc" id="cxxTryStmt0"><pre>Matches try statements. 896 897 try {} catch(int i) {} 898cxxTryStmt() 899 matches 'try {}' 900</pre></td></tr> 901 902 903<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxUnresolvedConstructExpr0')"><a name="cxxUnresolvedConstructExpr0Anchor">cxxUnresolvedConstructExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXUnresolvedConstructExpr.html">CXXUnresolvedConstructExpr</a>>...</td></tr> 904<tr><td colspan="4" class="doc" id="cxxUnresolvedConstructExpr0"><pre>Matches unresolved constructor call expressions. 905 906Example matches T(t) in return statement of f 907 (matcher = cxxUnresolvedConstructExpr()) 908 template <typename T> 909 void f(const T& t) { return T(t); } 910</pre></td></tr> 911 912 913<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('declRefExpr0')"><a name="declRefExpr0Anchor">declRefExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>...</td></tr> 914<tr><td colspan="4" class="doc" id="declRefExpr0"><pre>Matches expressions that refer to declarations. 915 916Example matches x in if (x) 917 bool x; 918 if (x) {} 919</pre></td></tr> 920 921 922<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('declStmt0')"><a name="declStmt0Anchor">declStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclStmt.html">DeclStmt</a>>...</td></tr> 923<tr><td colspan="4" class="doc" id="declStmt0"><pre>Matches declaration statements. 924 925Given 926 int a; 927declStmt() 928 matches 'int a'. 929</pre></td></tr> 930 931 932<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('defaultStmt0')"><a name="defaultStmt0Anchor">defaultStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DefaultStmt.html">DefaultStmt</a>>...</td></tr> 933<tr><td colspan="4" class="doc" id="defaultStmt0"><pre>Matches default statements inside switch statements. 934 935Given 936 switch(a) { case 42: break; default: break; } 937defaultStmt() 938 matches 'default: break;'. 939</pre></td></tr> 940 941 942<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('designatedInitExpr0')"><a name="designatedInitExpr0Anchor">designatedInitExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DesignatedInitExpr.html">DesignatedInitExpr</a>>...</td></tr> 943<tr><td colspan="4" class="doc" id="designatedInitExpr0"><pre>Matches C99 designated initializer expressions [C99 6.7.8]. 944 945Example: Matches { [2].y = 1.0, [0].x = 1.0 } 946 point ptarray[10] = { [2].y = 1.0, [0].x = 1.0 }; 947</pre></td></tr> 948 949 950<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('doStmt0')"><a name="doStmt0Anchor">doStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DoStmt.html">DoStmt</a>>...</td></tr> 951<tr><td colspan="4" class="doc" id="doStmt0"><pre>Matches do statements. 952 953Given 954 do {} while (true); 955doStmt() 956 matches 'do {} while(true)' 957</pre></td></tr> 958 959 960<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('explicitCastExpr0')"><a name="explicitCastExpr0Anchor">explicitCastExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ExplicitCastExpr.html">ExplicitCastExpr</a>>...</td></tr> 961<tr><td colspan="4" class="doc" id="explicitCastExpr0"><pre>Matches explicit cast expressions. 962 963Matches any cast expression written in user code, whether it be a 964C-style cast, a functional-style cast, or a keyword cast. 965 966Does not match implicit conversions. 967 968Note: the name "explicitCast" is chosen to match Clang's terminology, as 969Clang uses the term "cast" to apply to implicit conversions as well as to 970actual cast expressions. 971 972See also: hasDestinationType. 973 974Example: matches all five of the casts in 975 int((int)(reinterpret_cast<int>(static_cast<int>(const_cast<int>(42))))) 976but does not match the implicit conversion in 977 long ell = 42; 978</pre></td></tr> 979 980 981<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('expr0')"><a name="expr0Anchor">expr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>>...</td></tr> 982<tr><td colspan="4" class="doc" id="expr0"><pre>Matches expressions. 983 984Example matches x() 985 void f() { x(); } 986</pre></td></tr> 987 988 989<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('exprWithCleanups0')"><a name="exprWithCleanups0Anchor">exprWithCleanups</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ExprWithCleanups.html">ExprWithCleanups</a>>...</td></tr> 990<tr><td colspan="4" class="doc" id="exprWithCleanups0"><pre>Matches expressions that introduce cleanups to be run at the end 991of the sub-expression's evaluation. 992 993Example matches std::string() 994 const std::string str = std::string(); 995</pre></td></tr> 996 997 998<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('floatLiteral0')"><a name="floatLiteral0Anchor">floatLiteral</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FloatingLiteral.html">FloatingLiteral</a>>...</td></tr> 999<tr><td colspan="4" class="doc" id="floatLiteral0"><pre>Matches float literals of all sizes encodings, e.g. 10001.0, 1.0f, 1.0L and 1e10. 1001 1002Does not match implicit conversions such as 1003 float a = 10; 1004</pre></td></tr> 1005 1006 1007<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('forStmt0')"><a name="forStmt0Anchor">forStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ForStmt.html">ForStmt</a>>...</td></tr> 1008<tr><td colspan="4" class="doc" id="forStmt0"><pre>Matches for statements. 1009 1010Example matches 'for (;;) {}' 1011 for (;;) {} 1012 int i[] = {1, 2, 3}; for (auto a : i); 1013</pre></td></tr> 1014 1015 1016<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('gnuNullExpr0')"><a name="gnuNullExpr0Anchor">gnuNullExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1GNUNullExpr.html">GNUNullExpr</a>>...</td></tr> 1017<tr><td colspan="4" class="doc" id="gnuNullExpr0"><pre>Matches GNU __null expression. 1018</pre></td></tr> 1019 1020 1021<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('gotoStmt0')"><a name="gotoStmt0Anchor">gotoStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1GotoStmt.html">GotoStmt</a>>...</td></tr> 1022<tr><td colspan="4" class="doc" id="gotoStmt0"><pre>Matches goto statements. 1023 1024Given 1025 goto FOO; 1026 FOO: bar(); 1027gotoStmt() 1028 matches 'goto FOO' 1029</pre></td></tr> 1030 1031 1032<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('ifStmt0')"><a name="ifStmt0Anchor">ifStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IfStmt.html">IfStmt</a>>...</td></tr> 1033<tr><td colspan="4" class="doc" id="ifStmt0"><pre>Matches if statements. 1034 1035Example matches 'if (x) {}' 1036 if (x) {} 1037</pre></td></tr> 1038 1039 1040<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('implicitCastExpr0')"><a name="implicitCastExpr0Anchor">implicitCastExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ImplicitCastExpr.html">ImplicitCastExpr</a>>...</td></tr> 1041<tr><td colspan="4" class="doc" id="implicitCastExpr0"><pre>Matches the implicit cast nodes of Clang's AST. 1042 1043This matches many different places, including function call return value 1044eliding, as well as any type conversions. 1045</pre></td></tr> 1046 1047 1048<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('implicitValueInitExpr0')"><a name="implicitValueInitExpr0Anchor">implicitValueInitExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ImplicitValueInitExpr.html">ImplicitValueInitExpr</a>>...</td></tr> 1049<tr><td colspan="4" class="doc" id="implicitValueInitExpr0"><pre>Matches implicit initializers of init list expressions. 1050 1051Given 1052 point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 1053implicitValueInitExpr() 1054 matches "[0].y" (implicitly) 1055</pre></td></tr> 1056 1057 1058<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('initListExpr0')"><a name="initListExpr0Anchor">initListExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InitListExpr.html">InitListExpr</a>>...</td></tr> 1059<tr><td colspan="4" class="doc" id="initListExpr0"><pre>Matches init list expressions. 1060 1061Given 1062 int a[] = { 1, 2 }; 1063 struct B { int x, y; }; 1064 B b = { 5, 6 }; 1065initListExpr() 1066 matches "{ 1, 2 }" and "{ 5, 6 }" 1067</pre></td></tr> 1068 1069 1070<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('integerLiteral0')"><a name="integerLiteral0Anchor">integerLiteral</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IntegerLiteral.html">IntegerLiteral</a>>...</td></tr> 1071<tr><td colspan="4" class="doc" id="integerLiteral0"><pre>Matches integer literals of all sizes encodings, e.g. 10721, 1L, 0x1 and 1U. 1073 1074Does not match character-encoded integers such as L'a'. 1075</pre></td></tr> 1076 1077 1078<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('labelStmt0')"><a name="labelStmt0Anchor">labelStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>...</td></tr> 1079<tr><td colspan="4" class="doc" id="labelStmt0"><pre>Matches label statements. 1080 1081Given 1082 goto FOO; 1083 FOO: bar(); 1084labelStmt() 1085 matches 'FOO:' 1086</pre></td></tr> 1087 1088 1089<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('lambdaExpr0')"><a name="lambdaExpr0Anchor">lambdaExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LambdaExpr.html">LambdaExpr</a>>...</td></tr> 1090<tr><td colspan="4" class="doc" id="lambdaExpr0"><pre>Matches lambda expressions. 1091 1092Example matches [&](){return 5;} 1093 [&](){return 5;} 1094</pre></td></tr> 1095 1096 1097<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('materializeTemporaryExpr0')"><a name="materializeTemporaryExpr0Anchor">materializeTemporaryExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MaterializeTemporaryExpr.html">MaterializeTemporaryExpr</a>>...</td></tr> 1098<tr><td colspan="4" class="doc" id="materializeTemporaryExpr0"><pre>Matches nodes where temporaries are materialized. 1099 1100Example: Given 1101 struct T {void func()}; 1102 T f(); 1103 void g(T); 1104materializeTemporaryExpr() matches 'f()' in these statements 1105 T u(f()); 1106 g(f()); 1107but does not match 1108 f(); 1109 f().func(); 1110</pre></td></tr> 1111 1112 1113<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('memberExpr0')"><a name="memberExpr0Anchor">memberExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>...</td></tr> 1114<tr><td colspan="4" class="doc" id="memberExpr0"><pre>Matches member expressions. 1115 1116Given 1117 class Y { 1118 void x() { this->x(); x(); Y y; y.x(); a; this->b; Y::b; } 1119 int a; static int b; 1120 }; 1121memberExpr() 1122 matches this->x, x, y.x, a, this->b 1123</pre></td></tr> 1124 1125 1126<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('nullStmt0')"><a name="nullStmt0Anchor">nullStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NullStmt.html">NullStmt</a>>...</td></tr> 1127<tr><td colspan="4" class="doc" id="nullStmt0"><pre>Matches null statements. 1128 1129 foo();; 1130nullStmt() 1131 matches the second ';' 1132</pre></td></tr> 1133 1134 1135<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('objcMessageExpr0')"><a name="objcMessageExpr0Anchor">objcMessageExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCMessageExpr.html">ObjCMessageExpr</a>>...</td></tr> 1136<tr><td colspan="4" class="doc" id="objcMessageExpr0"><pre>Matches ObjectiveC Message invocation expressions. 1137 1138The innermost message send invokes the "alloc" class method on the 1139NSString class, while the outermost message send invokes the 1140"initWithString" instance method on the object returned from 1141NSString's "alloc". This matcher should match both message sends. 1142 [[NSString alloc] initWithString:@"Hello"] 1143</pre></td></tr> 1144 1145 1146<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('opaqueValueExpr0')"><a name="opaqueValueExpr0Anchor">opaqueValueExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1OpaqueValueExpr.html">OpaqueValueExpr</a>>...</td></tr> 1147<tr><td colspan="4" class="doc" id="opaqueValueExpr0"><pre>Matches opaque value expressions. They are used as helpers 1148to reference another expressions and can be met 1149in BinaryConditionalOperators, for example. 1150 1151Example matches 'a' 1152 (a ?: c) + 42; 1153</pre></td></tr> 1154 1155 1156<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('parenExpr0')"><a name="parenExpr0Anchor">parenExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ParenExpr.html">ParenExpr</a>>...</td></tr> 1157<tr><td colspan="4" class="doc" id="parenExpr0"><pre>Matches parentheses used in expressions. 1158 1159Example matches (foo() + 1) 1160 int foo() { return 1; } 1161 int a = (foo() + 1); 1162</pre></td></tr> 1163 1164 1165<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('parenListExpr0')"><a name="parenListExpr0Anchor">parenListExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ParenListExpr.html">ParenListExpr</a>>...</td></tr> 1166<tr><td colspan="4" class="doc" id="parenListExpr0"><pre>Matches paren list expressions. 1167ParenListExprs don't have a predefined type and are used for late parsing. 1168In the final AST, they can be met in template declarations. 1169 1170Given 1171 template<typename T> class X { 1172 void f() { 1173 X x(*this); 1174 int a = 0, b = 1; int i = (a, b); 1175 } 1176 }; 1177parenListExpr() matches "*this" but NOT matches (a, b) because (a, b) 1178has a predefined type and is a ParenExpr, not a ParenListExpr. 1179</pre></td></tr> 1180 1181 1182<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('predefinedExpr0')"><a name="predefinedExpr0Anchor">predefinedExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PredefinedExpr.html">PredefinedExpr</a>>...</td></tr> 1183<tr><td colspan="4" class="doc" id="predefinedExpr0"><pre>Matches predefined identifier expressions [C99 6.4.2.2]. 1184 1185Example: Matches __func__ 1186 printf("%s", __func__); 1187</pre></td></tr> 1188 1189 1190<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('returnStmt0')"><a name="returnStmt0Anchor">returnStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReturnStmt.html">ReturnStmt</a>>...</td></tr> 1191<tr><td colspan="4" class="doc" id="returnStmt0"><pre>Matches return statements. 1192 1193Given 1194 return 1; 1195returnStmt() 1196 matches 'return 1' 1197</pre></td></tr> 1198 1199 1200<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('stmt0')"><a name="stmt0Anchor">stmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>>...</td></tr> 1201<tr><td colspan="4" class="doc" id="stmt0"><pre>Matches statements. 1202 1203Given 1204 { ++a; } 1205stmt() 1206 matches both the compound statement '{ ++a; }' and '++a'. 1207</pre></td></tr> 1208 1209 1210<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('stmtExpr0')"><a name="stmtExpr0Anchor">stmtExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1StmtExpr.html">StmtExpr</a>>...</td></tr> 1211<tr><td colspan="4" class="doc" id="stmtExpr0"><pre>Matches statement expression (GNU extension). 1212 1213Example match: ({ int X = 4; X; }) 1214 int C = ({ int X = 4; X; }); 1215</pre></td></tr> 1216 1217 1218<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('stringLiteral0')"><a name="stringLiteral0Anchor">stringLiteral</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1StringLiteral.html">StringLiteral</a>>...</td></tr> 1219<tr><td colspan="4" class="doc" id="stringLiteral0"><pre>Matches string literals (also matches wide string literals). 1220 1221Example matches "abcd", L"abcd" 1222 char *s = "abcd"; 1223 wchar_t *ws = L"abcd"; 1224</pre></td></tr> 1225 1226 1227<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('substNonTypeTemplateParmExpr0')"><a name="substNonTypeTemplateParmExpr0Anchor">substNonTypeTemplateParmExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1SubstNonTypeTemplateParmExpr.html">SubstNonTypeTemplateParmExpr</a>>...</td></tr> 1228<tr><td colspan="4" class="doc" id="substNonTypeTemplateParmExpr0"><pre>Matches substitutions of non-type template parameters. 1229 1230Given 1231 template <int N> 1232 struct A { static const int n = N; }; 1233 struct B : public A<42> {}; 1234substNonTypeTemplateParmExpr() 1235 matches "N" in the right-hand side of "static const int n = N;" 1236</pre></td></tr> 1237 1238 1239<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('switchCase0')"><a name="switchCase0Anchor">switchCase</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1SwitchCase.html">SwitchCase</a>>...</td></tr> 1240<tr><td colspan="4" class="doc" id="switchCase0"><pre>Matches case and default statements inside switch statements. 1241 1242Given 1243 switch(a) { case 42: break; default: break; } 1244switchCase() 1245 matches 'case 42: break;' and 'default: break;'. 1246</pre></td></tr> 1247 1248 1249<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('switchStmt0')"><a name="switchStmt0Anchor">switchStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1SwitchStmt.html">SwitchStmt</a>>...</td></tr> 1250<tr><td colspan="4" class="doc" id="switchStmt0"><pre>Matches switch statements. 1251 1252Given 1253 switch(a) { case 42: break; default: break; } 1254switchStmt() 1255 matches 'switch(a)'. 1256</pre></td></tr> 1257 1258 1259<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('unaryExprOrTypeTraitExpr0')"><a name="unaryExprOrTypeTraitExpr0Anchor">unaryExprOrTypeTraitExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnaryExprOrTypeTraitExpr.html">UnaryExprOrTypeTraitExpr</a>>...</td></tr> 1260<tr><td colspan="4" class="doc" id="unaryExprOrTypeTraitExpr0"><pre>Matches sizeof (C99), alignof (C++11) and vec_step (OpenCL) 1261 1262Given 1263 Foo x = bar; 1264 int y = sizeof(x) + alignof(x); 1265unaryExprOrTypeTraitExpr() 1266 matches sizeof(x) and alignof(x) 1267</pre></td></tr> 1268 1269 1270<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('unaryOperator0')"><a name="unaryOperator0Anchor">unaryOperator</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnaryOperator.html">UnaryOperator</a>>...</td></tr> 1271<tr><td colspan="4" class="doc" id="unaryOperator0"><pre>Matches unary operator expressions. 1272 1273Example matches !a 1274 !a || b 1275</pre></td></tr> 1276 1277 1278<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('unresolvedLookupExpr0')"><a name="unresolvedLookupExpr0Anchor">unresolvedLookupExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedLookupExpr.html">UnresolvedLookupExpr</a>>...</td></tr> 1279<tr><td colspan="4" class="doc" id="unresolvedLookupExpr0"><pre>Matches reference to a name that can be looked up during parsing 1280but could not be resolved to a specific declaration. 1281 1282Given 1283 template<typename T> 1284 T foo() { T a; return a; } 1285 template<typename T> 1286 void bar() { 1287 foo<T>(); 1288 } 1289unresolvedLookupExpr() 1290 matches foo<T>() </pre></td></tr> 1291 1292 1293<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('userDefinedLiteral0')"><a name="userDefinedLiteral0Anchor">userDefinedLiteral</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UserDefinedLiteral.html">UserDefinedLiteral</a>>...</td></tr> 1294<tr><td colspan="4" class="doc" id="userDefinedLiteral0"><pre>Matches user defined literal operator call. 1295 1296Example match: "foo"_suffix 1297</pre></td></tr> 1298 1299 1300<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('whileStmt0')"><a name="whileStmt0Anchor">whileStmt</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1WhileStmt.html">WhileStmt</a>>...</td></tr> 1301<tr><td colspan="4" class="doc" id="whileStmt0"><pre>Matches while statements. 1302 1303Given 1304 while (true) {} 1305whileStmt() 1306 matches 'while (true) {}'. 1307</pre></td></tr> 1308 1309 1310<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>></td><td class="name" onclick="toggle('templateArgument0')"><a name="templateArgument0Anchor">templateArgument</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>>...</td></tr> 1311<tr><td colspan="4" class="doc" id="templateArgument0"><pre>Matches template arguments. 1312 1313Given 1314 template <typename T> struct C {}; 1315 C<int> c; 1316templateArgument() 1317 matches 'int' in C<int>. 1318</pre></td></tr> 1319 1320 1321<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateName.html">TemplateName</a>></td><td class="name" onclick="toggle('templateName0')"><a name="templateName0Anchor">templateName</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateName.html">TemplateName</a>>...</td></tr> 1322<tr><td colspan="4" class="doc" id="templateName0"><pre>Matches template name. 1323 1324Given 1325 template <typename T> class X { }; 1326 X<int> xi; 1327templateName() 1328 matches 'X' in X<int>. 1329</pre></td></tr> 1330 1331 1332<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>></td><td class="name" onclick="toggle('typeLoc0')"><a name="typeLoc0Anchor">typeLoc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>>...</td></tr> 1333<tr><td colspan="4" class="doc" id="typeLoc0"><pre>Matches TypeLocs in the clang AST. 1334</pre></td></tr> 1335 1336 1337<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('arrayType0')"><a name="arrayType0Anchor">arrayType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArrayType.html">ArrayType</a>>...</td></tr> 1338<tr><td colspan="4" class="doc" id="arrayType0"><pre>Matches all kinds of arrays. 1339 1340Given 1341 int a[] = { 2, 3 }; 1342 int b[4]; 1343 void f() { int c[a[0]]; } 1344arrayType() 1345 matches "int a[]", "int b[4]" and "int c[a[0]]"; 1346</pre></td></tr> 1347 1348 1349<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('atomicType0')"><a name="atomicType0Anchor">atomicType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AtomicType.html">AtomicType</a>>...</td></tr> 1350<tr><td colspan="4" class="doc" id="atomicType0"><pre>Matches atomic types. 1351 1352Given 1353 _Atomic(int) i; 1354atomicType() 1355 matches "_Atomic(int) i" 1356</pre></td></tr> 1357 1358 1359<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('autoType0')"><a name="autoType0Anchor">autoType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AutoType.html">AutoType</a>>...</td></tr> 1360<tr><td colspan="4" class="doc" id="autoType0"><pre>Matches types nodes representing C++11 auto types. 1361 1362Given: 1363 auto n = 4; 1364 int v[] = { 2, 3 } 1365 for (auto i : v) { } 1366autoType() 1367 matches "auto n" and "auto i" 1368</pre></td></tr> 1369 1370 1371<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('blockPointerType0')"><a name="blockPointerType0Anchor">blockPointerType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BlockPointerType.html">BlockPointerType</a>>...</td></tr> 1372<tr><td colspan="4" class="doc" id="blockPointerType0"><pre>Matches block pointer types, i.e. types syntactically represented as 1373"void (^)(int)". 1374 1375The pointee is always required to be a FunctionType. 1376</pre></td></tr> 1377 1378 1379<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('builtinType0')"><a name="builtinType0Anchor">builtinType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BuiltinType.html">BuiltinType</a>>...</td></tr> 1380<tr><td colspan="4" class="doc" id="builtinType0"><pre>Matches builtin Types. 1381 1382Given 1383 struct A {}; 1384 A a; 1385 int b; 1386 float c; 1387 bool d; 1388builtinType() 1389 matches "int b", "float c" and "bool d" 1390</pre></td></tr> 1391 1392 1393<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('complexType0')"><a name="complexType0Anchor">complexType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ComplexType.html">ComplexType</a>>...</td></tr> 1394<tr><td colspan="4" class="doc" id="complexType0"><pre>Matches C99 complex types. 1395 1396Given 1397 _Complex float f; 1398complexType() 1399 matches "_Complex float f" 1400</pre></td></tr> 1401 1402 1403<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('constantArrayType0')"><a name="constantArrayType0Anchor">constantArrayType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ConstantArrayType.html">ConstantArrayType</a>>...</td></tr> 1404<tr><td colspan="4" class="doc" id="constantArrayType0"><pre>Matches C arrays with a specified constant size. 1405 1406Given 1407 void() { 1408 int a[2]; 1409 int b[] = { 2, 3 }; 1410 int c[b[0]]; 1411 } 1412constantArrayType() 1413 matches "int a[2]" 1414</pre></td></tr> 1415 1416 1417<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('decayedType0')"><a name="decayedType0Anchor">decayedType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DecayedType.html">DecayedType</a>>...</td></tr> 1418<tr><td colspan="4" class="doc" id="decayedType0"><pre>Matches decayed type 1419Example matches i[] in declaration of f. 1420 (matcher = valueDecl(hasType(decayedType(hasDecayedType(pointerType()))))) 1421Example matches i[1]. 1422 (matcher = expr(hasType(decayedType(hasDecayedType(pointerType()))))) 1423 void f(int i[]) { 1424 i[1] = 0; 1425 } 1426</pre></td></tr> 1427 1428 1429<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('dependentSizedArrayType0')"><a name="dependentSizedArrayType0Anchor">dependentSizedArrayType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DependentSizedArrayType.html">DependentSizedArrayType</a>>...</td></tr> 1430<tr><td colspan="4" class="doc" id="dependentSizedArrayType0"><pre>Matches C++ arrays whose size is a value-dependent expression. 1431 1432Given 1433 template<typename T, int Size> 1434 class array { 1435 T data[Size]; 1436 }; 1437dependentSizedArrayType 1438 matches "T data[Size]" 1439</pre></td></tr> 1440 1441 1442<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('elaboratedType0')"><a name="elaboratedType0Anchor">elaboratedType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ElaboratedType.html">ElaboratedType</a>>...</td></tr> 1443<tr><td colspan="4" class="doc" id="elaboratedType0"><pre>Matches types specified with an elaborated type keyword or with a 1444qualified name. 1445 1446Given 1447 namespace N { 1448 namespace M { 1449 class D {}; 1450 } 1451 } 1452 class C {}; 1453 1454 class C c; 1455 N::M::D d; 1456 1457elaboratedType() matches the type of the variable declarations of both 1458c and d. 1459</pre></td></tr> 1460 1461 1462<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('enumType0')"><a name="enumType0Anchor">enumType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>...</td></tr> 1463<tr><td colspan="4" class="doc" id="enumType0"><pre>Matches enum types. 1464 1465Given 1466 enum C { Green }; 1467 enum class S { Red }; 1468 1469 C c; 1470 S s; 1471 1472enumType() matches the type of the variable declarations of both c and 1473s. 1474</pre></td></tr> 1475 1476 1477<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('functionProtoType0')"><a name="functionProtoType0Anchor">functionProtoType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionProtoType.html">FunctionProtoType</a>>...</td></tr> 1478<tr><td colspan="4" class="doc" id="functionProtoType0"><pre>Matches FunctionProtoType nodes. 1479 1480Given 1481 int (*f)(int); 1482 void g(); 1483functionProtoType() 1484 matches "int (*f)(int)" and the type of "g" in C++ mode. 1485 In C mode, "g" is not matched because it does not contain a prototype. 1486</pre></td></tr> 1487 1488 1489<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('functionType0')"><a name="functionType0Anchor">functionType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionType.html">FunctionType</a>>...</td></tr> 1490<tr><td colspan="4" class="doc" id="functionType0"><pre>Matches FunctionType nodes. 1491 1492Given 1493 int (*f)(int); 1494 void g(); 1495functionType() 1496 matches "int (*f)(int)" and the type of "g". 1497</pre></td></tr> 1498 1499 1500<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('incompleteArrayType0')"><a name="incompleteArrayType0Anchor">incompleteArrayType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IncompleteArrayType.html">IncompleteArrayType</a>>...</td></tr> 1501<tr><td colspan="4" class="doc" id="incompleteArrayType0"><pre>Matches C arrays with unspecified size. 1502 1503Given 1504 int a[] = { 2, 3 }; 1505 int b[42]; 1506 void f(int c[]) { int d[a[0]]; }; 1507incompleteArrayType() 1508 matches "int a[]" and "int c[]" 1509</pre></td></tr> 1510 1511 1512<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('injectedClassNameType0')"><a name="injectedClassNameType0Anchor">injectedClassNameType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>...</td></tr> 1513<tr><td colspan="4" class="doc" id="injectedClassNameType0"><pre>Matches injected class name types. 1514 1515Example matches S s, but not S<T> s. 1516 (matcher = parmVarDecl(hasType(injectedClassNameType()))) 1517 template <typename T> struct S { 1518 void f(S s); 1519 void g(S<T> s); 1520 }; 1521</pre></td></tr> 1522 1523 1524<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('lValueReferenceType0')"><a name="lValueReferenceType0Anchor">lValueReferenceType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LValueReferenceType.html">LValueReferenceType</a>>...</td></tr> 1525<tr><td colspan="4" class="doc" id="lValueReferenceType0"><pre>Matches lvalue reference types. 1526 1527Given: 1528 int *a; 1529 int &b = *a; 1530 int &&c = 1; 1531 auto &d = b; 1532 auto &&e = c; 1533 auto &&f = 2; 1534 int g = 5; 1535 1536lValueReferenceType() matches the types of b, d, and e. e is 1537matched since the type is deduced as int& by reference collapsing rules. 1538</pre></td></tr> 1539 1540 1541<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('memberPointerType0')"><a name="memberPointerType0Anchor">memberPointerType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberPointerType.html">MemberPointerType</a>>...</td></tr> 1542<tr><td colspan="4" class="doc" id="memberPointerType0"><pre>Matches member pointer types. 1543Given 1544 struct A { int i; } 1545 A::* ptr = A::i; 1546memberPointerType() 1547 matches "A::* ptr" 1548</pre></td></tr> 1549 1550 1551<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('objcObjectPointerType0')"><a name="objcObjectPointerType0Anchor">objcObjectPointerType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCObjectPointerType.html">ObjCObjectPointerType</a>>...</td></tr> 1552<tr><td colspan="4" class="doc" id="objcObjectPointerType0"><pre>Matches an Objective-C object pointer type, which is different from 1553a pointer type, despite being syntactically similar. 1554 1555Given 1556 int *a; 1557 1558 @interface Foo 1559 @end 1560 Foo *f; 1561pointerType() 1562 matches "Foo *f", but does not match "int *a". 1563</pre></td></tr> 1564 1565 1566<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('parenType0')"><a name="parenType0Anchor">parenType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ParenType.html">ParenType</a>>...</td></tr> 1567<tr><td colspan="4" class="doc" id="parenType0"><pre>Matches ParenType nodes. 1568 1569Given 1570 int (*ptr_to_array)[4]; 1571 int *array_of_ptrs[4]; 1572 1573varDecl(hasType(pointsTo(parenType()))) matches ptr_to_array but not 1574array_of_ptrs. 1575</pre></td></tr> 1576 1577 1578<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('pointerType0')"><a name="pointerType0Anchor">pointerType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerType.html">PointerType</a>>...</td></tr> 1579<tr><td colspan="4" class="doc" id="pointerType0"><pre>Matches pointer types, but does not match Objective-C object pointer 1580types. 1581 1582Given 1583 int *a; 1584 int &b = *a; 1585 int c = 5; 1586 1587 @interface Foo 1588 @end 1589 Foo *f; 1590pointerType() 1591 matches "int *a", but does not match "Foo *f". 1592</pre></td></tr> 1593 1594 1595<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('rValueReferenceType0')"><a name="rValueReferenceType0Anchor">rValueReferenceType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RValueReferenceType.html">RValueReferenceType</a>>...</td></tr> 1596<tr><td colspan="4" class="doc" id="rValueReferenceType0"><pre>Matches rvalue reference types. 1597 1598Given: 1599 int *a; 1600 int &b = *a; 1601 int &&c = 1; 1602 auto &d = b; 1603 auto &&e = c; 1604 auto &&f = 2; 1605 int g = 5; 1606 1607rValueReferenceType() matches the types of c and f. e is not 1608matched as it is deduced to int& by reference collapsing rules. 1609</pre></td></tr> 1610 1611 1612<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('recordType0')"><a name="recordType0Anchor">recordType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>...</td></tr> 1613<tr><td colspan="4" class="doc" id="recordType0"><pre>Matches record types (e.g. structs, classes). 1614 1615Given 1616 class C {}; 1617 struct S {}; 1618 1619 C c; 1620 S s; 1621 1622recordType() matches the type of the variable declarations of both c 1623and s. 1624</pre></td></tr> 1625 1626 1627<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('referenceType0')"><a name="referenceType0Anchor">referenceType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReferenceType.html">ReferenceType</a>>...</td></tr> 1628<tr><td colspan="4" class="doc" id="referenceType0"><pre>Matches both lvalue and rvalue reference types. 1629 1630Given 1631 int *a; 1632 int &b = *a; 1633 int &&c = 1; 1634 auto &d = b; 1635 auto &&e = c; 1636 auto &&f = 2; 1637 int g = 5; 1638 1639referenceType() matches the types of b, c, d, e, and f. 1640</pre></td></tr> 1641 1642 1643<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('substTemplateTypeParmType0')"><a name="substTemplateTypeParmType0Anchor">substTemplateTypeParmType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1SubstTemplateTypeParmType.html">SubstTemplateTypeParmType</a>>...</td></tr> 1644<tr><td colspan="4" class="doc" id="substTemplateTypeParmType0"><pre>Matches types that represent the result of substituting a type for a 1645template type parameter. 1646 1647Given 1648 template <typename T> 1649 void F(T t) { 1650 int i = 1 + t; 1651 } 1652 1653substTemplateTypeParmType() matches the type of 't' but not '1' 1654</pre></td></tr> 1655 1656 1657<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('templateSpecializationType0')"><a name="templateSpecializationType0Anchor">templateSpecializationType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>...</td></tr> 1658<tr><td colspan="4" class="doc" id="templateSpecializationType0"><pre>Matches template specialization types. 1659 1660Given 1661 template <typename T> 1662 class C { }; 1663 1664 template class C<int>; A 1665 C<char> var; B 1666 1667templateSpecializationType() matches the type of the explicit 1668instantiation in A and the type of the variable declaration in B. 1669</pre></td></tr> 1670 1671 1672<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('templateTypeParmType0')"><a name="templateTypeParmType0Anchor">templateTypeParmType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>...</td></tr> 1673<tr><td colspan="4" class="doc" id="templateTypeParmType0"><pre>Matches template type parameter types. 1674 1675Example matches T, but not int. 1676 (matcher = templateTypeParmType()) 1677 template <typename T> void f(int i); 1678</pre></td></tr> 1679 1680 1681<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('type0')"><a name="type0Anchor">type</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>>...</td></tr> 1682<tr><td colspan="4" class="doc" id="type0"><pre>Matches Types in the clang AST. 1683</pre></td></tr> 1684 1685 1686<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('typedefType0')"><a name="typedefType0Anchor">typedefType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>...</td></tr> 1687<tr><td colspan="4" class="doc" id="typedefType0"><pre>Matches typedef types. 1688 1689Given 1690 typedef int X; 1691typedefType() 1692 matches "typedef int X" 1693</pre></td></tr> 1694 1695 1696<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('unaryTransformType0')"><a name="unaryTransformType0Anchor">unaryTransformType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnaryTransformType.html">UnaryTransformType</a>>...</td></tr> 1697<tr><td colspan="4" class="doc" id="unaryTransformType0"><pre>Matches types nodes representing unary type transformations. 1698 1699Given: 1700 typedef __underlying_type(T) type; 1701unaryTransformType() 1702 matches "__underlying_type(T)" 1703</pre></td></tr> 1704 1705 1706<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('variableArrayType0')"><a name="variableArrayType0Anchor">variableArrayType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VariableArrayType.html">VariableArrayType</a>>...</td></tr> 1707<tr><td colspan="4" class="doc" id="variableArrayType0"><pre>Matches C arrays with a specified size that is not an 1708integer-constant-expression. 1709 1710Given 1711 void f() { 1712 int a[] = { 2, 3 } 1713 int b[42]; 1714 int c[a[0]]; 1715 } 1716variableArrayType() 1717 matches "int c[a[0]]" 1718</pre></td></tr> 1719 1720<!--END_DECL_MATCHERS --> 1721</table> 1722 1723<!-- ======================================================================= --> 1724<h2 id="narrowing-matchers">Narrowing Matchers</h2> 1725<!-- ======================================================================= --> 1726 1727<p>Narrowing matchers match certain attributes on the current node, thus 1728narrowing down the set of nodes of the current type to match on.</p> 1729 1730<p>There are special logical narrowing matchers (allOf, anyOf, anything and unless) 1731which allow users to create more powerful match expressions.</p> 1732 1733<table> 1734<tr style="text-align:left"><th>Return type</th><th>Name</th><th>Parameters</th></tr> 1735<!-- START_NARROWING_MATCHERS --> 1736 1737<tr><td>Matcher<*></td><td class="name" onclick="toggle('allOf0')"><a name="allOf0Anchor">allOf</a></td><td>Matcher<*>, ..., Matcher<*></td></tr> 1738<tr><td colspan="4" class="doc" id="allOf0"><pre>Matches if all given matchers match. 1739 1740Usable as: Any Matcher 1741</pre></td></tr> 1742 1743 1744<tr><td>Matcher<*></td><td class="name" onclick="toggle('anyOf0')"><a name="anyOf0Anchor">anyOf</a></td><td>Matcher<*>, ..., Matcher<*></td></tr> 1745<tr><td colspan="4" class="doc" id="anyOf0"><pre>Matches if any of the given matchers matches. 1746 1747Usable as: Any Matcher 1748</pre></td></tr> 1749 1750 1751<tr><td>Matcher<*></td><td class="name" onclick="toggle('anything0')"><a name="anything0Anchor">anything</a></td><td></td></tr> 1752<tr><td colspan="4" class="doc" id="anything0"><pre>Matches any node. 1753 1754Useful when another matcher requires a child matcher, but there's no 1755additional constraint. This will often be used with an explicit conversion 1756to an internal::Matcher<> type such as TypeMatcher. 1757 1758Example: DeclarationMatcher(anything()) matches all declarations, e.g., 1759"int* p" and "void f()" in 1760 int* p; 1761 void f(); 1762 1763Usable as: Any Matcher 1764</pre></td></tr> 1765 1766 1767<tr><td>Matcher<*></td><td class="name" onclick="toggle('unless0')"><a name="unless0Anchor">unless</a></td><td>Matcher<*></td></tr> 1768<tr><td colspan="4" class="doc" id="unless0"><pre>Matches if the provided matcher does not match. 1769 1770Example matches Y (matcher = cxxRecordDecl(unless(hasName("X")))) 1771 class X {}; 1772 class Y {}; 1773 1774Usable as: Any Matcher 1775</pre></td></tr> 1776 1777 1778<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BinaryOperator.html">BinaryOperator</a>></td><td class="name" onclick="toggle('hasOperatorName0')"><a name="hasOperatorName0Anchor">hasOperatorName</a></td><td>std::string Name</td></tr> 1779<tr><td colspan="4" class="doc" id="hasOperatorName0"><pre>Matches the operator Name of operator expressions (binary or 1780unary). 1781 1782Example matches a || b (matcher = binaryOperator(hasOperatorName("||"))) 1783 !(a || b) 1784</pre></td></tr> 1785 1786 1787<tr><td>Matcher<CXXBoolLiteral></td><td class="name" onclick="toggle('equals2')"><a name="equals2Anchor">equals</a></td><td>ValueT Value</td></tr> 1788<tr><td colspan="4" class="doc" id="equals2"><pre>Matches literals that are equal to the given value. 1789 1790Example matches true (matcher = cxxBoolLiteral(equals(true))) 1791 true 1792 1793Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CharacterLiteral.html">CharacterLiteral</a>>, Matcher<CXXBoolLiteral>, 1794 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FloatingLiteral.html">FloatingLiteral</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IntegerLiteral.html">IntegerLiteral</a>> 1795</pre></td></tr> 1796 1797 1798<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCatchStmt.html">CXXCatchStmt</a>></td><td class="name" onclick="toggle('isCatchAll0')"><a name="isCatchAll0Anchor">isCatchAll</a></td><td></td></tr> 1799<tr><td colspan="4" class="doc" id="isCatchAll0"><pre>Matches a C++ catch statement that has a catch-all handler. 1800 1801Given 1802 try { 1803 ... 1804 } catch (int) { 1805 ... 1806 } catch (...) { 1807 ... 1808 } 1809endcode 1810cxxCatchStmt(isCatchAll()) matches catch(...) but not catch(int). 1811</pre></td></tr> 1812 1813 1814<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>></td><td class="name" onclick="toggle('argumentCountIs1')"><a name="argumentCountIs1Anchor">argumentCountIs</a></td><td>unsigned N</td></tr> 1815<tr><td colspan="4" class="doc" id="argumentCountIs1"><pre>Checks that a call expression or a constructor call expression has 1816a specific number of arguments (including absent default arguments). 1817 1818Example matches f(0, 0) (matcher = callExpr(argumentCountIs(2))) 1819 void f(int x, int y); 1820 f(0, 0); 1821</pre></td></tr> 1822 1823 1824<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>></td><td class="name" onclick="toggle('isListInitialization0')"><a name="isListInitialization0Anchor">isListInitialization</a></td><td></td></tr> 1825<tr><td colspan="4" class="doc" id="isListInitialization0"><pre>Matches a constructor call expression which uses list initialization. 1826</pre></td></tr> 1827 1828 1829<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>></td><td class="name" onclick="toggle('requiresZeroInitialization0')"><a name="requiresZeroInitialization0Anchor">requiresZeroInitialization</a></td><td></td></tr> 1830<tr><td colspan="4" class="doc" id="requiresZeroInitialization0"><pre>Matches a constructor call expression which requires 1831zero initialization. 1832 1833Given 1834void foo() { 1835 struct point { double x; double y; }; 1836 point pt[2] = { { 1.0, 2.0 } }; 1837} 1838initListExpr(has(cxxConstructExpr(requiresZeroInitialization())) 1839will match the implicit array filler for pt[1]. 1840</pre></td></tr> 1841 1842 1843<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructorDecl.html">CXXConstructorDecl</a>></td><td class="name" onclick="toggle('isCopyConstructor0')"><a name="isCopyConstructor0Anchor">isCopyConstructor</a></td><td></td></tr> 1844<tr><td colspan="4" class="doc" id="isCopyConstructor0"><pre>Matches constructor declarations that are copy constructors. 1845 1846Given 1847 struct S { 1848 S(); #1 1849 S(const S &); #2 1850 S(S &&); #3 1851 }; 1852cxxConstructorDecl(isCopyConstructor()) will match #2, but not #1 or #3. 1853</pre></td></tr> 1854 1855 1856<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructorDecl.html">CXXConstructorDecl</a>></td><td class="name" onclick="toggle('isDefaultConstructor0')"><a name="isDefaultConstructor0Anchor">isDefaultConstructor</a></td><td></td></tr> 1857<tr><td colspan="4" class="doc" id="isDefaultConstructor0"><pre>Matches constructor declarations that are default constructors. 1858 1859Given 1860 struct S { 1861 S(); #1 1862 S(const S &); #2 1863 S(S &&); #3 1864 }; 1865cxxConstructorDecl(isDefaultConstructor()) will match #1, but not #2 or #3. 1866</pre></td></tr> 1867 1868 1869<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructorDecl.html">CXXConstructorDecl</a>></td><td class="name" onclick="toggle('isDelegatingConstructor0')"><a name="isDelegatingConstructor0Anchor">isDelegatingConstructor</a></td><td></td></tr> 1870<tr><td colspan="4" class="doc" id="isDelegatingConstructor0"><pre>Matches constructors that delegate to another constructor. 1871 1872Given 1873 struct S { 1874 S(); #1 1875 S(int) {} #2 1876 S(S &&) : S() {} #3 1877 }; 1878 S::S() : S(0) {} #4 1879cxxConstructorDecl(isDelegatingConstructor()) will match #3 and #4, but not 1880#1 or #2. 1881</pre></td></tr> 1882 1883 1884<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructorDecl.html">CXXConstructorDecl</a>></td><td class="name" onclick="toggle('isExplicit0')"><a name="isExplicit0Anchor">isExplicit</a></td><td></td></tr> 1885<tr><td colspan="4" class="doc" id="isExplicit0"><pre>Matches constructor and conversion declarations that are marked with 1886the explicit keyword. 1887 1888Given 1889 struct S { 1890 S(int); #1 1891 explicit S(double); #2 1892 operator int(); #3 1893 explicit operator bool(); #4 1894 }; 1895cxxConstructorDecl(isExplicit()) will match #2, but not #1. 1896cxxConversionDecl(isExplicit()) will match #4, but not #3. 1897</pre></td></tr> 1898 1899 1900<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructorDecl.html">CXXConstructorDecl</a>></td><td class="name" onclick="toggle('isMoveConstructor0')"><a name="isMoveConstructor0Anchor">isMoveConstructor</a></td><td></td></tr> 1901<tr><td colspan="4" class="doc" id="isMoveConstructor0"><pre>Matches constructor declarations that are move constructors. 1902 1903Given 1904 struct S { 1905 S(); #1 1906 S(const S &); #2 1907 S(S &&); #3 1908 }; 1909cxxConstructorDecl(isMoveConstructor()) will match #3, but not #1 or #2. 1910</pre></td></tr> 1911 1912 1913<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConversionDecl.html">CXXConversionDecl</a>></td><td class="name" onclick="toggle('isExplicit1')"><a name="isExplicit1Anchor">isExplicit</a></td><td></td></tr> 1914<tr><td colspan="4" class="doc" id="isExplicit1"><pre>Matches constructor and conversion declarations that are marked with 1915the explicit keyword. 1916 1917Given 1918 struct S { 1919 S(int); #1 1920 explicit S(double); #2 1921 operator int(); #3 1922 explicit operator bool(); #4 1923 }; 1924cxxConstructorDecl(isExplicit()) will match #2, but not #1. 1925cxxConversionDecl(isExplicit()) will match #4, but not #3. 1926</pre></td></tr> 1927 1928 1929<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>></td><td class="name" onclick="toggle('isBaseInitializer0')"><a name="isBaseInitializer0Anchor">isBaseInitializer</a></td><td></td></tr> 1930<tr><td colspan="4" class="doc" id="isBaseInitializer0"><pre>Matches a constructor initializer if it is initializing a base, as 1931opposed to a member. 1932 1933Given 1934 struct B {}; 1935 struct D : B { 1936 int I; 1937 D(int i) : I(i) {} 1938 }; 1939 struct E : B { 1940 E() : B() {} 1941 }; 1942cxxConstructorDecl(hasAnyConstructorInitializer(isBaseInitializer())) 1943 will match E(), but not match D(int). 1944</pre></td></tr> 1945 1946 1947<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>></td><td class="name" onclick="toggle('isMemberInitializer0')"><a name="isMemberInitializer0Anchor">isMemberInitializer</a></td><td></td></tr> 1948<tr><td colspan="4" class="doc" id="isMemberInitializer0"><pre>Matches a constructor initializer if it is initializing a member, as 1949opposed to a base. 1950 1951Given 1952 struct B {}; 1953 struct D : B { 1954 int I; 1955 D(int i) : I(i) {} 1956 }; 1957 struct E : B { 1958 E() : B() {} 1959 }; 1960cxxConstructorDecl(hasAnyConstructorInitializer(isMemberInitializer())) 1961 will match D(int), but not match E(). 1962</pre></td></tr> 1963 1964 1965<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>></td><td class="name" onclick="toggle('isWritten0')"><a name="isWritten0Anchor">isWritten</a></td><td></td></tr> 1966<tr><td colspan="4" class="doc" id="isWritten0"><pre>Matches a constructor initializer if it is explicitly written in 1967code (as opposed to implicitly added by the compiler). 1968 1969Given 1970 struct Foo { 1971 Foo() { } 1972 Foo(int) : foo_("A") { } 1973 string foo_; 1974 }; 1975cxxConstructorDecl(hasAnyConstructorInitializer(isWritten())) 1976 will match Foo(int), but not Foo() 1977</pre></td></tr> 1978 1979 1980<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('isConst0')"><a name="isConst0Anchor">isConst</a></td><td></td></tr> 1981<tr><td colspan="4" class="doc" id="isConst0"><pre>Matches if the given method declaration is const. 1982 1983Given 1984struct A { 1985 void foo() const; 1986 void bar(); 1987}; 1988 1989cxxMethodDecl(isConst()) matches A::foo() but not A::bar() 1990</pre></td></tr> 1991 1992 1993<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('isCopyAssignmentOperator0')"><a name="isCopyAssignmentOperator0Anchor">isCopyAssignmentOperator</a></td><td></td></tr> 1994<tr><td colspan="4" class="doc" id="isCopyAssignmentOperator0"><pre>Matches if the given method declaration declares a copy assignment 1995operator. 1996 1997Given 1998struct A { 1999 A &operator=(const A &); 2000 A &operator=(A &&); 2001}; 2002 2003cxxMethodDecl(isCopyAssignmentOperator()) matches the first method but not 2004the second one. 2005</pre></td></tr> 2006 2007 2008<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('isFinal1')"><a name="isFinal1Anchor">isFinal</a></td><td></td></tr> 2009<tr><td colspan="4" class="doc" id="isFinal1"><pre>Matches if the given method or class declaration is final. 2010 2011Given: 2012 class A final {}; 2013 2014 struct B { 2015 virtual void f(); 2016 }; 2017 2018 struct C : B { 2019 void f() final; 2020 }; 2021matches A and C::f, but not B, C, or B::f 2022</pre></td></tr> 2023 2024 2025<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('isMoveAssignmentOperator0')"><a name="isMoveAssignmentOperator0Anchor">isMoveAssignmentOperator</a></td><td></td></tr> 2026<tr><td colspan="4" class="doc" id="isMoveAssignmentOperator0"><pre>Matches if the given method declaration declares a move assignment 2027operator. 2028 2029Given 2030struct A { 2031 A &operator=(const A &); 2032 A &operator=(A &&); 2033}; 2034 2035cxxMethodDecl(isMoveAssignmentOperator()) matches the second method but not 2036the first one. 2037</pre></td></tr> 2038 2039 2040<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('isOverride0')"><a name="isOverride0Anchor">isOverride</a></td><td></td></tr> 2041<tr><td colspan="4" class="doc" id="isOverride0"><pre>Matches if the given method declaration overrides another method. 2042 2043Given 2044 class A { 2045 public: 2046 virtual void x(); 2047 }; 2048 class B : public A { 2049 public: 2050 virtual void x(); 2051 }; 2052 matches B::x 2053</pre></td></tr> 2054 2055 2056<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('isPure0')"><a name="isPure0Anchor">isPure</a></td><td></td></tr> 2057<tr><td colspan="4" class="doc" id="isPure0"><pre>Matches if the given method declaration is pure. 2058 2059Given 2060 class A { 2061 public: 2062 virtual void x() = 0; 2063 }; 2064 matches A::x 2065</pre></td></tr> 2066 2067 2068<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('isUserProvided0')"><a name="isUserProvided0Anchor">isUserProvided</a></td><td></td></tr> 2069<tr><td colspan="4" class="doc" id="isUserProvided0"><pre>Matches method declarations that are user-provided. 2070 2071Given 2072 struct S { 2073 S(); #1 2074 S(const S &) = default; #2 2075 S(S &&) = delete; #3 2076 }; 2077cxxConstructorDecl(isUserProvided()) will match #1, but not #2 or #3. 2078</pre></td></tr> 2079 2080 2081<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('isVirtual0')"><a name="isVirtual0Anchor">isVirtual</a></td><td></td></tr> 2082<tr><td colspan="4" class="doc" id="isVirtual0"><pre>Matches if the given method declaration is virtual. 2083 2084Given 2085 class A { 2086 public: 2087 virtual void x(); 2088 }; 2089 matches A::x 2090</pre></td></tr> 2091 2092 2093<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('isVirtualAsWritten0')"><a name="isVirtualAsWritten0Anchor">isVirtualAsWritten</a></td><td></td></tr> 2094<tr><td colspan="4" class="doc" id="isVirtualAsWritten0"><pre>Matches if the given method declaration has an explicit "virtual". 2095 2096Given 2097 class A { 2098 public: 2099 virtual void x(); 2100 }; 2101 class B : public A { 2102 public: 2103 void x(); 2104 }; 2105 matches A::x but not B::x 2106</pre></td></tr> 2107 2108 2109<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXOperatorCallExpr.html">CXXOperatorCallExpr</a>></td><td class="name" onclick="toggle('hasOverloadedOperatorName1')"><a name="hasOverloadedOperatorName1Anchor">hasOverloadedOperatorName</a></td><td>StringRef Name</td></tr> 2110<tr><td colspan="4" class="doc" id="hasOverloadedOperatorName1"><pre>Matches overloaded operator names. 2111 2112Matches overloaded operator names specified in strings without the 2113"operator" prefix: e.g. "<<". 2114 2115Given: 2116 class A { int operator*(); }; 2117 const A &operator<<(const A &a, const A &b); 2118 A a; 2119 a << a; <-- This matches 2120 2121cxxOperatorCallExpr(hasOverloadedOperatorName("<<"))) matches the 2122specified line and 2123cxxRecordDecl(hasMethod(hasOverloadedOperatorName("*"))) 2124matches the declaration of A. 2125 2126Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXOperatorCallExpr.html">CXXOperatorCallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>> 2127</pre></td></tr> 2128 2129 2130<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>></td><td class="name" onclick="toggle('isDerivedFrom1')"><a name="isDerivedFrom1Anchor">isDerivedFrom</a></td><td>std::string BaseName</td></tr> 2131<tr><td colspan="4" class="doc" id="isDerivedFrom1"><pre>Overloaded method as shortcut for isDerivedFrom(hasName(...)). 2132</pre></td></tr> 2133 2134 2135<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>></td><td class="name" onclick="toggle('isExplicitTemplateSpecialization2')"><a name="isExplicitTemplateSpecialization2Anchor">isExplicitTemplateSpecialization</a></td><td></td></tr> 2136<tr><td colspan="4" class="doc" id="isExplicitTemplateSpecialization2"><pre>Matches explicit template specializations of function, class, or 2137static member variable template instantiations. 2138 2139Given 2140 template<typename T> void A(T t) { } 2141 template<> void A(int N) { } 2142functionDecl(isExplicitTemplateSpecialization()) 2143 matches the specialization A<int>(). 2144 2145Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>> 2146</pre></td></tr> 2147 2148 2149<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>></td><td class="name" onclick="toggle('isFinal0')"><a name="isFinal0Anchor">isFinal</a></td><td></td></tr> 2150<tr><td colspan="4" class="doc" id="isFinal0"><pre>Matches if the given method or class declaration is final. 2151 2152Given: 2153 class A final {}; 2154 2155 struct B { 2156 virtual void f(); 2157 }; 2158 2159 struct C : B { 2160 void f() final; 2161 }; 2162matches A and C::f, but not B, C, or B::f 2163</pre></td></tr> 2164 2165 2166<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>></td><td class="name" onclick="toggle('isLambda0')"><a name="isLambda0Anchor">isLambda</a></td><td></td></tr> 2167<tr><td colspan="4" class="doc" id="isLambda0"><pre>Matches the generated class of lambda expressions. 2168 2169Given: 2170 auto x = []{}; 2171 2172cxxRecordDecl(isLambda()) matches the implicit class declaration of 2173decltype(x) 2174</pre></td></tr> 2175 2176 2177<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>></td><td class="name" onclick="toggle('isSameOrDerivedFrom1')"><a name="isSameOrDerivedFrom1Anchor">isSameOrDerivedFrom</a></td><td>std::string BaseName</td></tr> 2178<tr><td colspan="4" class="doc" id="isSameOrDerivedFrom1"><pre>Overloaded method as shortcut for 2179isSameOrDerivedFrom(hasName(...)). 2180</pre></td></tr> 2181 2182 2183<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>></td><td class="name" onclick="toggle('isTemplateInstantiation2')"><a name="isTemplateInstantiation2Anchor">isTemplateInstantiation</a></td><td></td></tr> 2184<tr><td colspan="4" class="doc" id="isTemplateInstantiation2"><pre>Matches template instantiations of function, class, or static 2185member variable template instantiations. 2186 2187Given 2188 template <typename T> class X {}; class A {}; X<A> x; 2189or 2190 template <typename T> class X {}; class A {}; template class X<A>; 2191cxxRecordDecl(hasName("::X"), isTemplateInstantiation()) 2192 matches the template instantiation of X<A>. 2193 2194But given 2195 template <typename T> class X {}; class A {}; 2196 template <> class X<A> {}; X<A> x; 2197cxxRecordDecl(hasName("::X"), isTemplateInstantiation()) 2198 does not match, as X<A> is an explicit template specialization. 2199 2200Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>> 2201</pre></td></tr> 2202 2203 2204<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>></td><td class="name" onclick="toggle('argumentCountIs0')"><a name="argumentCountIs0Anchor">argumentCountIs</a></td><td>unsigned N</td></tr> 2205<tr><td colspan="4" class="doc" id="argumentCountIs0"><pre>Checks that a call expression or a constructor call expression has 2206a specific number of arguments (including absent default arguments). 2207 2208Example matches f(0, 0) (matcher = callExpr(argumentCountIs(2))) 2209 void f(int x, int y); 2210 f(0, 0); 2211</pre></td></tr> 2212 2213 2214<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CastExpr.html">CastExpr</a>></td><td class="name" onclick="toggle('hasCastKind0')"><a name="hasCastKind0Anchor">hasCastKind</a></td><td>CastKind Kind</td></tr> 2215<tr><td colspan="4" class="doc" id="hasCastKind0"><pre>Matches casts that has a given cast kind. 2216 2217Example: matches the implicit cast around 0 2218(matcher = castExpr(hasCastKind(CK_NullToPointer))) 2219 int *p = 0; 2220</pre></td></tr> 2221 2222 2223<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CharacterLiteral.html">CharacterLiteral</a>></td><td class="name" onclick="toggle('equals3')"><a name="equals3Anchor">equals</a></td><td>ValueT Value</td></tr> 2224<tr><td colspan="4" class="doc" id="equals3"><pre>Matches literals that are equal to the given value. 2225 2226Example matches true (matcher = cxxBoolLiteral(equals(true))) 2227 true 2228 2229Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CharacterLiteral.html">CharacterLiteral</a>>, Matcher<CXXBoolLiteral>, 2230 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FloatingLiteral.html">FloatingLiteral</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IntegerLiteral.html">IntegerLiteral</a>> 2231</pre></td></tr> 2232 2233 2234<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ClassTemplateSpecializationDecl.html">ClassTemplateSpecializationDecl</a>></td><td class="name" onclick="toggle('templateArgumentCountIs0')"><a name="templateArgumentCountIs0Anchor">templateArgumentCountIs</a></td><td>unsigned N</td></tr> 2235<tr><td colspan="4" class="doc" id="templateArgumentCountIs0"><pre>Matches if the number of template arguments equals N. 2236 2237Given 2238 template<typename T> struct C {}; 2239 C<int> c; 2240classTemplateSpecializationDecl(templateArgumentCountIs(1)) 2241 matches C<int>. 2242</pre></td></tr> 2243 2244 2245<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CompoundStmt.html">CompoundStmt</a>></td><td class="name" onclick="toggle('statementCountIs0')"><a name="statementCountIs0Anchor">statementCountIs</a></td><td>unsigned N</td></tr> 2246<tr><td colspan="4" class="doc" id="statementCountIs0"><pre>Checks that a compound statement contains a specific number of 2247child statements. 2248 2249Example: Given 2250 { for (;;) {} } 2251compoundStmt(statementCountIs(0))) 2252 matches '{}' 2253 but does not match the outer compound statement. 2254</pre></td></tr> 2255 2256 2257<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ConstantArrayType.html">ConstantArrayType</a>></td><td class="name" onclick="toggle('hasSize0')"><a name="hasSize0Anchor">hasSize</a></td><td>unsigned N</td></tr> 2258<tr><td colspan="4" class="doc" id="hasSize0"><pre>Matches nodes that have the specified size. 2259 2260Given 2261 int a[42]; 2262 int b[2 * 21]; 2263 int c[41], d[43]; 2264 char *s = "abcd"; 2265 wchar_t *ws = L"abcd"; 2266 char *w = "a"; 2267constantArrayType(hasSize(42)) 2268 matches "int a[42]" and "int b[2 * 21]" 2269stringLiteral(hasSize(4)) 2270 matches "abcd", L"abcd" 2271</pre></td></tr> 2272 2273 2274<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclStmt.html">DeclStmt</a>></td><td class="name" onclick="toggle('declCountIs0')"><a name="declCountIs0Anchor">declCountIs</a></td><td>unsigned N</td></tr> 2275<tr><td colspan="4" class="doc" id="declCountIs0"><pre>Matches declaration statements that contain a specific number of 2276declarations. 2277 2278Example: Given 2279 int a, b; 2280 int c; 2281 int d = 2, e; 2282declCountIs(2) 2283 matches 'int a, b;' and 'int d = 2, e;', but not 'int c;'. 2284</pre></td></tr> 2285 2286 2287<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('equalsBoundNode1')"><a name="equalsBoundNode1Anchor">equalsBoundNode</a></td><td>std::string ID</td></tr> 2288<tr><td colspan="4" class="doc" id="equalsBoundNode1"><pre>Matches if a node equals a previously bound node. 2289 2290Matches a node if it equals the node previously bound to ID. 2291 2292Given 2293 class X { int a; int b; }; 2294cxxRecordDecl( 2295 has(fieldDecl(hasName("a"), hasType(type().bind("t")))), 2296 has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t")))))) 2297 matches the class X, as a and b have the same type. 2298 2299Note that when multiple matches are involved via forEach* matchers, 2300equalsBoundNodes acts as a filter. 2301For example: 2302compoundStmt( 2303 forEachDescendant(varDecl().bind("d")), 2304 forEachDescendant(declRefExpr(to(decl(equalsBoundNode("d")))))) 2305will trigger a match for each combination of variable declaration 2306and reference to that variable declaration within a compound statement. 2307</pre></td></tr> 2308 2309 2310<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('equalsNode0')"><a name="equalsNode0Anchor">equalsNode</a></td><td>const Decl* Other</td></tr> 2311<tr><td colspan="4" class="doc" id="equalsNode0"><pre>Matches if a node equals another node. 2312 2313Decl has pointer identity in the AST. 2314</pre></td></tr> 2315 2316 2317<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('hasAttr0')"><a name="hasAttr0Anchor">hasAttr</a></td><td>attr::Kind AttrKind</td></tr> 2318<tr><td colspan="4" class="doc" id="hasAttr0"><pre>Matches declaration that has a given attribute. 2319 2320Given 2321 __attribute__((device)) void f() { ... } 2322decl(hasAttr(clang::attr::CUDADevice)) matches the function declaration of 2323f. If the matcher is use from clang-query, attr::Kind parameter should be 2324passed as a quoted string. e.g., hasAttr("attr::CUDADevice"). 2325</pre></td></tr> 2326 2327 2328<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('isExpansionInFileMatching0')"><a name="isExpansionInFileMatching0Anchor">isExpansionInFileMatching</a></td><td>std::string RegExp</td></tr> 2329<tr><td colspan="4" class="doc" id="isExpansionInFileMatching0"><pre>Matches AST nodes that were expanded within files whose name is 2330partially matching a given regex. 2331 2332Example matches Y but not X 2333 (matcher = cxxRecordDecl(isExpansionInFileMatching("AST.*")) 2334 #include "ASTMatcher.h" 2335 class X {}; 2336ASTMatcher.h: 2337 class Y {}; 2338 2339Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>> 2340</pre></td></tr> 2341 2342 2343<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('isExpansionInMainFile0')"><a name="isExpansionInMainFile0Anchor">isExpansionInMainFile</a></td><td></td></tr> 2344<tr><td colspan="4" class="doc" id="isExpansionInMainFile0"><pre>Matches AST nodes that were expanded within the main-file. 2345 2346Example matches X but not Y 2347 (matcher = cxxRecordDecl(isExpansionInMainFile()) 2348 #include <Y.h> 2349 class X {}; 2350Y.h: 2351 class Y {}; 2352 2353Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>> 2354</pre></td></tr> 2355 2356 2357<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('isExpansionInSystemHeader0')"><a name="isExpansionInSystemHeader0Anchor">isExpansionInSystemHeader</a></td><td></td></tr> 2358<tr><td colspan="4" class="doc" id="isExpansionInSystemHeader0"><pre>Matches AST nodes that were expanded within system-header-files. 2359 2360Example matches Y but not X 2361 (matcher = cxxRecordDecl(isExpansionInSystemHeader()) 2362 #include <SystemHeader.h> 2363 class X {}; 2364SystemHeader.h: 2365 class Y {}; 2366 2367Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>> 2368</pre></td></tr> 2369 2370 2371<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('isImplicit0')"><a name="isImplicit0Anchor">isImplicit</a></td><td></td></tr> 2372<tr><td colspan="4" class="doc" id="isImplicit0"><pre>Matches a declaration that has been implicitly added 2373by the compiler (eg. implicit defaultcopy constructors). 2374</pre></td></tr> 2375 2376 2377<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('isPrivate0')"><a name="isPrivate0Anchor">isPrivate</a></td><td></td></tr> 2378<tr><td colspan="4" class="doc" id="isPrivate0"><pre>Matches private C++ declarations. 2379 2380Given 2381 class C { 2382 public: int a; 2383 protected: int b; 2384 private: int c; 2385 }; 2386fieldDecl(isPrivate()) 2387 matches 'int c;' 2388</pre></td></tr> 2389 2390 2391<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('isProtected0')"><a name="isProtected0Anchor">isProtected</a></td><td></td></tr> 2392<tr><td colspan="4" class="doc" id="isProtected0"><pre>Matches protected C++ declarations. 2393 2394Given 2395 class C { 2396 public: int a; 2397 protected: int b; 2398 private: int c; 2399 }; 2400fieldDecl(isProtected()) 2401 matches 'int b;' 2402</pre></td></tr> 2403 2404 2405<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('isPublic0')"><a name="isPublic0Anchor">isPublic</a></td><td></td></tr> 2406<tr><td colspan="4" class="doc" id="isPublic0"><pre>Matches public C++ declarations. 2407 2408Given 2409 class C { 2410 public: int a; 2411 protected: int b; 2412 private: int c; 2413 }; 2414fieldDecl(isPublic()) 2415 matches 'int a;' 2416</pre></td></tr> 2417 2418 2419<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DesignatedInitExpr.html">DesignatedInitExpr</a>></td><td class="name" onclick="toggle('designatorCountIs0')"><a name="designatorCountIs0Anchor">designatorCountIs</a></td><td>unsigned N</td></tr> 2420<tr><td colspan="4" class="doc" id="designatorCountIs0"><pre>Matches designated initializer expressions that contain 2421a specific number of designators. 2422 2423Example: Given 2424 point ptarray[10] = { [2].y = 1.0, [0].x = 1.0 }; 2425 point ptarray2[10] = { [2].y = 1.0, [2].x = 0.0, [0].x = 1.0 }; 2426designatorCountIs(2) 2427 matches '{ [2].y = 1.0, [0].x = 1.0 }', 2428 but not '{ [2].y = 1.0, [2].x = 0.0, [0].x = 1.0 }'. 2429</pre></td></tr> 2430 2431 2432<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FieldDecl.html">FieldDecl</a>></td><td class="name" onclick="toggle('hasBitWidth0')"><a name="hasBitWidth0Anchor">hasBitWidth</a></td><td>unsigned Width</td></tr> 2433<tr><td colspan="4" class="doc" id="hasBitWidth0"><pre>Matches non-static data members that are bit-fields. 2434 2435Given 2436 class C { 2437 int a : 2; 2438 int b : 4; 2439 int c : 2; 2440 }; 2441fieldDecl(isBitField()) 2442 matches 'int a;' and 'int c;' but not 'int b;'. 2443</pre></td></tr> 2444 2445 2446<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FieldDecl.html">FieldDecl</a>></td><td class="name" onclick="toggle('isBitField0')"><a name="isBitField0Anchor">isBitField</a></td><td></td></tr> 2447<tr><td colspan="4" class="doc" id="isBitField0"><pre>Matches non-static data members that are bit-fields. 2448 2449Given 2450 class C { 2451 int a : 2; 2452 int b; 2453 }; 2454fieldDecl(isBitField()) 2455 matches 'int a;' but not 'int b;'. 2456</pre></td></tr> 2457 2458 2459<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FloatingLiteral.html">FloatingLiteral</a>></td><td class="name" onclick="toggle('equals1')"><a name="equals1Anchor">equals</a></td><td>ValueT Value</td></tr> 2460<tr><td colspan="4" class="doc" id="equals1"><pre>Matches literals that are equal to the given value. 2461 2462Example matches true (matcher = cxxBoolLiteral(equals(true))) 2463 true 2464 2465Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CharacterLiteral.html">CharacterLiteral</a>>, Matcher<CXXBoolLiteral>, 2466 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FloatingLiteral.html">FloatingLiteral</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IntegerLiteral.html">IntegerLiteral</a>> 2467</pre></td></tr> 2468 2469 2470<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('hasDynamicExceptionSpec0')"><a name="hasDynamicExceptionSpec0Anchor">hasDynamicExceptionSpec</a></td><td></td></tr> 2471<tr><td colspan="4" class="doc" id="hasDynamicExceptionSpec0"><pre>Matches functions that have a dynamic exception specification. 2472 2473Given: 2474 void f(); 2475 void g() noexcept; 2476 void h() noexcept(true); 2477 void i() noexcept(false); 2478 void j() throw(); 2479 void k() throw(int); 2480 void l() throw(...); 2481functionDecl(hasDynamicExceptionSpec()) and 2482 functionProtoType(hasDynamicExceptionSpec()) 2483 match the declarations of j, k, and l, but not f, g, h, or i. 2484</pre></td></tr> 2485 2486 2487<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('hasOverloadedOperatorName0')"><a name="hasOverloadedOperatorName0Anchor">hasOverloadedOperatorName</a></td><td>StringRef Name</td></tr> 2488<tr><td colspan="4" class="doc" id="hasOverloadedOperatorName0"><pre>Matches overloaded operator names. 2489 2490Matches overloaded operator names specified in strings without the 2491"operator" prefix: e.g. "<<". 2492 2493Given: 2494 class A { int operator*(); }; 2495 const A &operator<<(const A &a, const A &b); 2496 A a; 2497 a << a; <-- This matches 2498 2499cxxOperatorCallExpr(hasOverloadedOperatorName("<<"))) matches the 2500specified line and 2501cxxRecordDecl(hasMethod(hasOverloadedOperatorName("*"))) 2502matches the declaration of A. 2503 2504Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXOperatorCallExpr.html">CXXOperatorCallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>> 2505</pre></td></tr> 2506 2507 2508<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isConstexpr1')"><a name="isConstexpr1Anchor">isConstexpr</a></td><td></td></tr> 2509<tr><td colspan="4" class="doc" id="isConstexpr1"><pre>Matches constexpr variable and function declarations. 2510 2511Given: 2512 constexpr int foo = 42; 2513 constexpr int bar(); 2514varDecl(isConstexpr()) 2515 matches the declaration of foo. 2516functionDecl(isConstexpr()) 2517 matches the declaration of bar. 2518</pre></td></tr> 2519 2520 2521<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isDefaulted0')"><a name="isDefaulted0Anchor">isDefaulted</a></td><td></td></tr> 2522<tr><td colspan="4" class="doc" id="isDefaulted0"><pre>Matches defaulted function declarations. 2523 2524Given: 2525 class A { ~A(); }; 2526 class B { ~B() = default; }; 2527functionDecl(isDefaulted()) 2528 matches the declaration of ~B, but not ~A. 2529</pre></td></tr> 2530 2531 2532<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isDefinition2')"><a name="isDefinition2Anchor">isDefinition</a></td><td></td></tr> 2533<tr><td colspan="4" class="doc" id="isDefinition2"><pre>Matches if a declaration has a body attached. 2534 2535Example matches A, va, fa 2536 class A {}; 2537 class B; Doesn't match, as it has no body. 2538 int va; 2539 extern int vb; Doesn't match, as it doesn't define the variable. 2540 void fa() {} 2541 void fb(); Doesn't match, as it has no body. 2542 2543Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagDecl.html">TagDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>> 2544</pre></td></tr> 2545 2546 2547<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isDeleted0')"><a name="isDeleted0Anchor">isDeleted</a></td><td></td></tr> 2548<tr><td colspan="4" class="doc" id="isDeleted0"><pre>Matches deleted function declarations. 2549 2550Given: 2551 void Func(); 2552 void DeletedFunc() = delete; 2553functionDecl(isDeleted()) 2554 matches the declaration of DeletedFunc, but not Func. 2555</pre></td></tr> 2556 2557 2558<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isExplicitTemplateSpecialization0')"><a name="isExplicitTemplateSpecialization0Anchor">isExplicitTemplateSpecialization</a></td><td></td></tr> 2559<tr><td colspan="4" class="doc" id="isExplicitTemplateSpecialization0"><pre>Matches explicit template specializations of function, class, or 2560static member variable template instantiations. 2561 2562Given 2563 template<typename T> void A(T t) { } 2564 template<> void A(int N) { } 2565functionDecl(isExplicitTemplateSpecialization()) 2566 matches the specialization A<int>(). 2567 2568Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>> 2569</pre></td></tr> 2570 2571 2572<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isExternC0')"><a name="isExternC0Anchor">isExternC</a></td><td></td></tr> 2573<tr><td colspan="4" class="doc" id="isExternC0"><pre>Matches extern "C" function declarations. 2574 2575Given: 2576 extern "C" void f() {} 2577 extern "C" { void g() {} } 2578 void h() {} 2579functionDecl(isExternC()) 2580 matches the declaration of f and g, but not the declaration h 2581</pre></td></tr> 2582 2583 2584<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isInline1')"><a name="isInline1Anchor">isInline</a></td><td></td></tr> 2585<tr><td colspan="4" class="doc" id="isInline1"><pre>Matches function and namespace declarations that are marked with 2586the inline keyword. 2587 2588Given 2589 inline void f(); 2590 void g(); 2591 namespace n { 2592 inline namespace m {} 2593 } 2594functionDecl(isInline()) will match ::f(). 2595namespaceDecl(isInline()) will match n::m. 2596</pre></td></tr> 2597 2598 2599<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isNoThrow0')"><a name="isNoThrow0Anchor">isNoThrow</a></td><td></td></tr> 2600<tr><td colspan="4" class="doc" id="isNoThrow0"><pre>Matches functions that have a non-throwing exception specification. 2601 2602Given: 2603 void f(); 2604 void g() noexcept; 2605 void h() throw(); 2606 void i() throw(int); 2607 void j() noexcept(false); 2608functionDecl(isNoThrow()) and functionProtoType(isNoThrow()) 2609 match the declarations of g, and h, but not f, i or j. 2610</pre></td></tr> 2611 2612 2613<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isStaticStorageClass0')"><a name="isStaticStorageClass0Anchor">isStaticStorageClass</a></td><td></td></tr> 2614<tr><td colspan="4" class="doc" id="isStaticStorageClass0"><pre>Matches variablefunction declarations that have "static" storage 2615class specifier ("static" keyword) written in the source. 2616 2617Given: 2618 static void f() {} 2619 static int i = 0; 2620 extern int j; 2621 int k; 2622functionDecl(isStaticStorageClass()) 2623 matches the function declaration f. 2624varDecl(isStaticStorageClass()) 2625 matches the variable declaration i. 2626</pre></td></tr> 2627 2628 2629<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isTemplateInstantiation0')"><a name="isTemplateInstantiation0Anchor">isTemplateInstantiation</a></td><td></td></tr> 2630<tr><td colspan="4" class="doc" id="isTemplateInstantiation0"><pre>Matches template instantiations of function, class, or static 2631member variable template instantiations. 2632 2633Given 2634 template <typename T> class X {}; class A {}; X<A> x; 2635or 2636 template <typename T> class X {}; class A {}; template class X<A>; 2637cxxRecordDecl(hasName("::X"), isTemplateInstantiation()) 2638 matches the template instantiation of X<A>. 2639 2640But given 2641 template <typename T> class X {}; class A {}; 2642 template <> class X<A> {}; X<A> x; 2643cxxRecordDecl(hasName("::X"), isTemplateInstantiation()) 2644 does not match, as X<A> is an explicit template specialization. 2645 2646Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>> 2647</pre></td></tr> 2648 2649 2650<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('isVariadic0')"><a name="isVariadic0Anchor">isVariadic</a></td><td></td></tr> 2651<tr><td colspan="4" class="doc" id="isVariadic0"><pre>Matches if a function declaration is variadic. 2652 2653Example matches f, but not g or h. The function i will not match, even when 2654compiled in C mode. 2655 void f(...); 2656 void g(int); 2657 template <typename... Ts> void h(Ts...); 2658 void i(); 2659</pre></td></tr> 2660 2661 2662<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('parameterCountIs0')"><a name="parameterCountIs0Anchor">parameterCountIs</a></td><td>unsigned N</td></tr> 2663<tr><td colspan="4" class="doc" id="parameterCountIs0"><pre>Matches FunctionDecls and FunctionProtoTypes that have a 2664specific parameter count. 2665 2666Given 2667 void f(int i) {} 2668 void g(int i, int j) {} 2669 void h(int i, int j); 2670 void j(int i); 2671 void k(int x, int y, int z, ...); 2672functionDecl(parameterCountIs(2)) 2673 matches void g(int i, int j) {} 2674functionProtoType(parameterCountIs(2)) 2675 matches void h(int i, int j) 2676functionProtoType(parameterCountIs(3)) 2677 matches void k(int x, int y, int z, ...); 2678</pre></td></tr> 2679 2680 2681<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionProtoType.html">FunctionProtoType</a>></td><td class="name" onclick="toggle('hasDynamicExceptionSpec1')"><a name="hasDynamicExceptionSpec1Anchor">hasDynamicExceptionSpec</a></td><td></td></tr> 2682<tr><td colspan="4" class="doc" id="hasDynamicExceptionSpec1"><pre>Matches functions that have a dynamic exception specification. 2683 2684Given: 2685 void f(); 2686 void g() noexcept; 2687 void h() noexcept(true); 2688 void i() noexcept(false); 2689 void j() throw(); 2690 void k() throw(int); 2691 void l() throw(...); 2692functionDecl(hasDynamicExceptionSpec()) and 2693 functionProtoType(hasDynamicExceptionSpec()) 2694 match the declarations of j, k, and l, but not f, g, h, or i. 2695</pre></td></tr> 2696 2697 2698<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionProtoType.html">FunctionProtoType</a>></td><td class="name" onclick="toggle('isNoThrow1')"><a name="isNoThrow1Anchor">isNoThrow</a></td><td></td></tr> 2699<tr><td colspan="4" class="doc" id="isNoThrow1"><pre>Matches functions that have a non-throwing exception specification. 2700 2701Given: 2702 void f(); 2703 void g() noexcept; 2704 void h() throw(); 2705 void i() throw(int); 2706 void j() noexcept(false); 2707functionDecl(isNoThrow()) and functionProtoType(isNoThrow()) 2708 match the declarations of g, and h, but not f, i or j. 2709</pre></td></tr> 2710 2711 2712<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionProtoType.html">FunctionProtoType</a>></td><td class="name" onclick="toggle('parameterCountIs1')"><a name="parameterCountIs1Anchor">parameterCountIs</a></td><td>unsigned N</td></tr> 2713<tr><td colspan="4" class="doc" id="parameterCountIs1"><pre>Matches FunctionDecls and FunctionProtoTypes that have a 2714specific parameter count. 2715 2716Given 2717 void f(int i) {} 2718 void g(int i, int j) {} 2719 void h(int i, int j); 2720 void j(int i); 2721 void k(int x, int y, int z, ...); 2722functionDecl(parameterCountIs(2)) 2723 matches void g(int i, int j) {} 2724functionProtoType(parameterCountIs(2)) 2725 matches void h(int i, int j) 2726functionProtoType(parameterCountIs(3)) 2727 matches void k(int x, int y, int z, ...); 2728</pre></td></tr> 2729 2730 2731<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IntegerLiteral.html">IntegerLiteral</a>></td><td class="name" onclick="toggle('equals0')"><a name="equals0Anchor">equals</a></td><td>ValueT Value</td></tr> 2732<tr><td colspan="4" class="doc" id="equals0"><pre>Matches literals that are equal to the given value. 2733 2734Example matches true (matcher = cxxBoolLiteral(equals(true))) 2735 true 2736 2737Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CharacterLiteral.html">CharacterLiteral</a>>, Matcher<CXXBoolLiteral>, 2738 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FloatingLiteral.html">FloatingLiteral</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IntegerLiteral.html">IntegerLiteral</a>> 2739</pre></td></tr> 2740 2741 2742<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>></td><td class="name" onclick="toggle('isArrow0')"><a name="isArrow0Anchor">isArrow</a></td><td></td></tr> 2743<tr><td colspan="4" class="doc" id="isArrow0"><pre>Matches member expressions that are called with '->' as opposed 2744to '.'. 2745 2746Member calls on the implicit this pointer match as called with '->'. 2747 2748Given 2749 class Y { 2750 void x() { this->x(); x(); Y y; y.x(); a; this->b; Y::b; } 2751 int a; 2752 static int b; 2753 }; 2754memberExpr(isArrow()) 2755 matches this->x, x, y.x, a, this->b 2756</pre></td></tr> 2757 2758 2759<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamedDecl.html">NamedDecl</a>></td><td class="name" onclick="toggle('hasExternalFormalLinkage0')"><a name="hasExternalFormalLinkage0Anchor">hasExternalFormalLinkage</a></td><td></td></tr> 2760<tr><td colspan="4" class="doc" id="hasExternalFormalLinkage0"><pre>Matches a declaration that has external formal linkage. 2761 2762Example matches only z (matcher = varDecl(hasExternalFormalLinkage())) 2763void f() { 2764 int x; 2765 static int y; 2766} 2767int z; 2768 2769Example matches f() because it has external formal linkage despite being 2770unique to the translation unit as though it has internal likage 2771(matcher = functionDecl(hasExternalFormalLinkage())) 2772 2773namespace { 2774void f() {} 2775} 2776</pre></td></tr> 2777 2778 2779<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamedDecl.html">NamedDecl</a>></td><td class="name" onclick="toggle('hasName0')"><a name="hasName0Anchor">hasName</a></td><td>std::string Name</td></tr> 2780<tr><td colspan="4" class="doc" id="hasName0"><pre>Matches NamedDecl nodes that have the specified name. 2781 2782Supports specifying enclosing namespaces or classes by prefixing the name 2783with '<enclosing>::'. 2784Does not match typedefs of an underlying type with the given name. 2785 2786Example matches X (Name == "X") 2787 class X; 2788 2789Example matches X (Name is one of "::a::b::X", "a::b::X", "b::X", "X") 2790 namespace a { namespace b { class X; } } 2791</pre></td></tr> 2792 2793 2794<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamedDecl.html">NamedDecl</a>></td><td class="name" onclick="toggle('matchesName0')"><a name="matchesName0Anchor">matchesName</a></td><td>std::string RegExp</td></tr> 2795<tr><td colspan="4" class="doc" id="matchesName0"><pre>Matches NamedDecl nodes whose fully qualified names contain 2796a substring matched by the given RegExp. 2797 2798Supports specifying enclosing namespaces or classes by 2799prefixing the name with '<enclosing>::'. Does not match typedefs 2800of an underlying type with the given name. 2801 2802Example matches X (regexp == "::X") 2803 class X; 2804 2805Example matches X (regexp is one of "::X", "^foo::.*X", among others) 2806 namespace foo { namespace bar { class X; } } 2807</pre></td></tr> 2808 2809 2810<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamespaceDecl.html">NamespaceDecl</a>></td><td class="name" onclick="toggle('isAnonymous0')"><a name="isAnonymous0Anchor">isAnonymous</a></td><td></td></tr> 2811<tr><td colspan="4" class="doc" id="isAnonymous0"><pre>Matches anonymous namespace declarations. 2812 2813Given 2814 namespace n { 2815 namespace {} #1 2816 } 2817namespaceDecl(isAnonymous()) will match #1 but not ::n. 2818</pre></td></tr> 2819 2820 2821<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamespaceDecl.html">NamespaceDecl</a>></td><td class="name" onclick="toggle('isInline0')"><a name="isInline0Anchor">isInline</a></td><td></td></tr> 2822<tr><td colspan="4" class="doc" id="isInline0"><pre>Matches function and namespace declarations that are marked with 2823the inline keyword. 2824 2825Given 2826 inline void f(); 2827 void g(); 2828 namespace n { 2829 inline namespace m {} 2830 } 2831functionDecl(isInline()) will match ::f(). 2832namespaceDecl(isInline()) will match n::m. 2833</pre></td></tr> 2834 2835 2836<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCMessageExpr.html">ObjCMessageExpr</a>></td><td class="name" onclick="toggle('argumentCountIs2')"><a name="argumentCountIs2Anchor">argumentCountIs</a></td><td>unsigned N</td></tr> 2837<tr><td colspan="4" class="doc" id="argumentCountIs2"><pre>Checks that a call expression or a constructor call expression has 2838a specific number of arguments (including absent default arguments). 2839 2840Example matches f(0, 0) (matcher = callExpr(argumentCountIs(2))) 2841 void f(int x, int y); 2842 f(0, 0); 2843</pre></td></tr> 2844 2845 2846<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCMessageExpr.html">ObjCMessageExpr</a>></td><td class="name" onclick="toggle('hasKeywordSelector0')"><a name="hasKeywordSelector0Anchor">hasKeywordSelector</a></td><td></td></tr> 2847<tr><td colspan="4" class="doc" id="hasKeywordSelector0"><pre>Matches when the selector is a keyword selector 2848 2849objCMessageExpr(hasKeywordSelector()) matches the generated setFrame 2850message expression in 2851 2852 UIWebView *webView = ...; 2853 CGRect bodyFrame = webView.frame; 2854 bodyFrame.size.height = self.bodyContentHeight; 2855 webView.frame = bodyFrame; 2856 ^---- matches here 2857</pre></td></tr> 2858 2859 2860<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCMessageExpr.html">ObjCMessageExpr</a>></td><td class="name" onclick="toggle('hasNullSelector0')"><a name="hasNullSelector0Anchor">hasNullSelector</a></td><td></td></tr> 2861<tr><td colspan="4" class="doc" id="hasNullSelector0"><pre>Matches when the selector is the empty selector 2862 2863Matches only when the selector of the objCMessageExpr is NULL. This may 2864represent an error condition in the tree! 2865</pre></td></tr> 2866 2867 2868<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCMessageExpr.html">ObjCMessageExpr</a>></td><td class="name" onclick="toggle('hasSelector0')"><a name="hasSelector0Anchor">hasSelector</a></td><td>std::string BaseName</td></tr> 2869<tr><td colspan="4" class="doc" id="hasSelector0"><pre>Matches when BaseName == Selector.getAsString() 2870 2871 matcher = objCMessageExpr(hasSelector("loadHTMLString:baseURL:")); 2872 matches the outer message expr in the code below, but NOT the message 2873 invocation for self.bodyView. 2874 [self.bodyView loadHTMLString:html baseURL:NULL]; 2875</pre></td></tr> 2876 2877 2878<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCMessageExpr.html">ObjCMessageExpr</a>></td><td class="name" onclick="toggle('hasUnarySelector0')"><a name="hasUnarySelector0Anchor">hasUnarySelector</a></td><td></td></tr> 2879<tr><td colspan="4" class="doc" id="hasUnarySelector0"><pre>Matches when the selector is a Unary Selector 2880 2881 matcher = objCMessageExpr(matchesSelector(hasUnarySelector()); 2882 matches self.bodyView in the code below, but NOT the outer message 2883 invocation of "loadHTMLString:baseURL:". 2884 [self.bodyView loadHTMLString:html baseURL:NULL]; 2885</pre></td></tr> 2886 2887 2888<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCMessageExpr.html">ObjCMessageExpr</a>></td><td class="name" onclick="toggle('matchesSelector0')"><a name="matchesSelector0Anchor">matchesSelector</a></td><td>std::string RegExp</td></tr> 2889<tr><td colspan="4" class="doc" id="matchesSelector0"><pre>Matches ObjC selectors whose name contains 2890a substring matched by the given RegExp. 2891 matcher = objCMessageExpr(matchesSelector("loadHTMLStringmatches the outer message expr in the code below, but NOT the message 2892 invocation for self.bodyView. 2893 [self.bodyView loadHTMLString:html baseURL:NULL]; 2894</pre></td></tr> 2895 2896 2897<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCMessageExpr.html">ObjCMessageExpr</a>></td><td class="name" onclick="toggle('numSelectorArgs0')"><a name="numSelectorArgs0Anchor">numSelectorArgs</a></td><td>unsigned N</td></tr> 2898<tr><td colspan="4" class="doc" id="numSelectorArgs0"><pre>Matches when the selector has the specified number of arguments 2899 2900 matcher = objCMessageExpr(numSelectorArgs(0)); 2901 matches self.bodyView in the code below 2902 2903 matcher = objCMessageExpr(numSelectorArgs(2)); 2904 matches the invocation of "loadHTMLString:baseURL:" but not that 2905 of self.bodyView 2906 [self.bodyView loadHTMLString:html baseURL:NULL]; 2907</pre></td></tr> 2908 2909 2910<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('asString0')"><a name="asString0Anchor">asString</a></td><td>std::string Name</td></tr> 2911<tr><td colspan="4" class="doc" id="asString0"><pre>Matches if the matched type is represented by the given string. 2912 2913Given 2914 class Y { public: void x(); }; 2915 void z() { Y* y; y->x(); } 2916cxxMemberCallExpr(on(hasType(asString("class Y *")))) 2917 matches y->x() 2918</pre></td></tr> 2919 2920 2921<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('equalsBoundNode3')"><a name="equalsBoundNode3Anchor">equalsBoundNode</a></td><td>std::string ID</td></tr> 2922<tr><td colspan="4" class="doc" id="equalsBoundNode3"><pre>Matches if a node equals a previously bound node. 2923 2924Matches a node if it equals the node previously bound to ID. 2925 2926Given 2927 class X { int a; int b; }; 2928cxxRecordDecl( 2929 has(fieldDecl(hasName("a"), hasType(type().bind("t")))), 2930 has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t")))))) 2931 matches the class X, as a and b have the same type. 2932 2933Note that when multiple matches are involved via forEach* matchers, 2934equalsBoundNodes acts as a filter. 2935For example: 2936compoundStmt( 2937 forEachDescendant(varDecl().bind("d")), 2938 forEachDescendant(declRefExpr(to(decl(equalsBoundNode("d")))))) 2939will trigger a match for each combination of variable declaration 2940and reference to that variable declaration within a compound statement. 2941</pre></td></tr> 2942 2943 2944<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('hasLocalQualifiers0')"><a name="hasLocalQualifiers0Anchor">hasLocalQualifiers</a></td><td></td></tr> 2945<tr><td colspan="4" class="doc" id="hasLocalQualifiers0"><pre>Matches QualType nodes that have local CV-qualifiers attached to 2946the node, not hidden within a typedef. 2947 2948Given 2949 typedef const int const_int; 2950 const_int i; 2951 int *const j; 2952 int *volatile k; 2953 int m; 2954varDecl(hasType(hasLocalQualifiers())) matches only j and k. 2955i is const-qualified but the qualifier is not local. 2956</pre></td></tr> 2957 2958 2959<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('isAnyCharacter0')"><a name="isAnyCharacter0Anchor">isAnyCharacter</a></td><td></td></tr> 2960<tr><td colspan="4" class="doc" id="isAnyCharacter0"><pre>Matches QualType nodes that are of character type. 2961 2962Given 2963 void a(char); 2964 void b(wchar_t); 2965 void c(double); 2966functionDecl(hasAnyParameter(hasType(isAnyCharacter()))) 2967matches "a(char)", "b(wchar_t)", but not "c(double)". 2968</pre></td></tr> 2969 2970 2971<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('isAnyPointer0')"><a name="isAnyPointer0Anchor">isAnyPointer</a></td><td></td></tr> 2972<tr><td colspan="4" class="doc" id="isAnyPointer0"><pre>Matches QualType nodes that are of any pointer type; this includes 2973the Objective-C object pointer type, which is different despite being 2974syntactically similar. 2975 2976Given 2977 int *i = nullptr; 2978 2979 @interface Foo 2980 @end 2981 Foo *f; 2982 2983 int j; 2984varDecl(hasType(isAnyPointer())) 2985 matches "int *i" and "Foo *f", but not "int j". 2986</pre></td></tr> 2987 2988 2989<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('isConstQualified0')"><a name="isConstQualified0Anchor">isConstQualified</a></td><td></td></tr> 2990<tr><td colspan="4" class="doc" id="isConstQualified0"><pre>Matches QualType nodes that are const-qualified, i.e., that 2991include "top-level" const. 2992 2993Given 2994 void a(int); 2995 void b(int const); 2996 void c(const int); 2997 void d(const int*); 2998 void e(int const) {}; 2999functionDecl(hasAnyParameter(hasType(isConstQualified()))) 3000 matches "void b(int const)", "void c(const int)" and 3001 "void e(int const) {}". It does not match d as there 3002 is no top-level const on the parameter type "const int *". 3003</pre></td></tr> 3004 3005 3006<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('isInteger0')"><a name="isInteger0Anchor">isInteger</a></td><td></td></tr> 3007<tr><td colspan="4" class="doc" id="isInteger0"><pre>Matches QualType nodes that are of integer type. 3008 3009Given 3010 void a(int); 3011 void b(long); 3012 void c(double); 3013functionDecl(hasAnyParameter(hasType(isInteger()))) 3014matches "a(int)", "b(long)", but not "c(double)". 3015</pre></td></tr> 3016 3017 3018<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('isSignedInteger0')"><a name="isSignedInteger0Anchor">isSignedInteger</a></td><td></td></tr> 3019<tr><td colspan="4" class="doc" id="isSignedInteger0"><pre>Matches QualType nodes that are of signed integer type. 3020 3021Given 3022 void a(int); 3023 void b(unsigned long); 3024 void c(double); 3025functionDecl(hasAnyParameter(hasType(isSignedInteger()))) 3026matches "a(int)", but not "b(unsigned long)" and "c(double)". 3027</pre></td></tr> 3028 3029 3030<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('isUnsignedInteger0')"><a name="isUnsignedInteger0Anchor">isUnsignedInteger</a></td><td></td></tr> 3031<tr><td colspan="4" class="doc" id="isUnsignedInteger0"><pre>Matches QualType nodes that are of unsigned integer type. 3032 3033Given 3034 void a(int); 3035 void b(unsigned long); 3036 void c(double); 3037functionDecl(hasAnyParameter(hasType(isUnsignedInteger()))) 3038matches "b(unsigned long)", but not "a(int)" and "c(double)". 3039</pre></td></tr> 3040 3041 3042<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('isVolatileQualified0')"><a name="isVolatileQualified0Anchor">isVolatileQualified</a></td><td></td></tr> 3043<tr><td colspan="4" class="doc" id="isVolatileQualified0"><pre>Matches QualType nodes that are volatile-qualified, i.e., that 3044include "top-level" volatile. 3045 3046Given 3047 void a(int); 3048 void b(int volatile); 3049 void c(volatile int); 3050 void d(volatile int*); 3051 void e(int volatile) {}; 3052functionDecl(hasAnyParameter(hasType(isVolatileQualified()))) 3053 matches "void b(int volatile)", "void c(volatile int)" and 3054 "void e(int volatile) {}". It does not match d as there 3055 is no top-level volatile on the parameter type "volatile int *". 3056</pre></td></tr> 3057 3058 3059<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordDecl.html">RecordDecl</a>></td><td class="name" onclick="toggle('isClass0')"><a name="isClass0Anchor">isClass</a></td><td></td></tr> 3060<tr><td colspan="4" class="doc" id="isClass0"><pre>Matches RecordDecl object that are spelled with "class." 3061 3062Example matches C, but not S or U. 3063 struct S {}; 3064 class C {}; 3065 union U {}; 3066</pre></td></tr> 3067 3068 3069<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordDecl.html">RecordDecl</a>></td><td class="name" onclick="toggle('isStruct0')"><a name="isStruct0Anchor">isStruct</a></td><td></td></tr> 3070<tr><td colspan="4" class="doc" id="isStruct0"><pre>Matches RecordDecl object that are spelled with "struct." 3071 3072Example matches S, but not C or U. 3073 struct S {}; 3074 class C {}; 3075 union U {}; 3076</pre></td></tr> 3077 3078 3079<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordDecl.html">RecordDecl</a>></td><td class="name" onclick="toggle('isUnion0')"><a name="isUnion0Anchor">isUnion</a></td><td></td></tr> 3080<tr><td colspan="4" class="doc" id="isUnion0"><pre>Matches RecordDecl object that are spelled with "union." 3081 3082Example matches U, but not C or S. 3083 struct S {}; 3084 class C {}; 3085 union U {}; 3086</pre></td></tr> 3087 3088 3089<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('equalsBoundNode0')"><a name="equalsBoundNode0Anchor">equalsBoundNode</a></td><td>std::string ID</td></tr> 3090<tr><td colspan="4" class="doc" id="equalsBoundNode0"><pre>Matches if a node equals a previously bound node. 3091 3092Matches a node if it equals the node previously bound to ID. 3093 3094Given 3095 class X { int a; int b; }; 3096cxxRecordDecl( 3097 has(fieldDecl(hasName("a"), hasType(type().bind("t")))), 3098 has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t")))))) 3099 matches the class X, as a and b have the same type. 3100 3101Note that when multiple matches are involved via forEach* matchers, 3102equalsBoundNodes acts as a filter. 3103For example: 3104compoundStmt( 3105 forEachDescendant(varDecl().bind("d")), 3106 forEachDescendant(declRefExpr(to(decl(equalsBoundNode("d")))))) 3107will trigger a match for each combination of variable declaration 3108and reference to that variable declaration within a compound statement. 3109</pre></td></tr> 3110 3111 3112<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('equalsNode1')"><a name="equalsNode1Anchor">equalsNode</a></td><td>const Stmt* Other</td></tr> 3113<tr><td colspan="4" class="doc" id="equalsNode1"><pre>Matches if a node equals another node. 3114 3115Stmt has pointer identity in the AST. 3116</pre></td></tr> 3117 3118 3119<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('isExpansionInFileMatching1')"><a name="isExpansionInFileMatching1Anchor">isExpansionInFileMatching</a></td><td>std::string RegExp</td></tr> 3120<tr><td colspan="4" class="doc" id="isExpansionInFileMatching1"><pre>Matches AST nodes that were expanded within files whose name is 3121partially matching a given regex. 3122 3123Example matches Y but not X 3124 (matcher = cxxRecordDecl(isExpansionInFileMatching("AST.*")) 3125 #include "ASTMatcher.h" 3126 class X {}; 3127ASTMatcher.h: 3128 class Y {}; 3129 3130Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>> 3131</pre></td></tr> 3132 3133 3134<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('isExpansionInMainFile1')"><a name="isExpansionInMainFile1Anchor">isExpansionInMainFile</a></td><td></td></tr> 3135<tr><td colspan="4" class="doc" id="isExpansionInMainFile1"><pre>Matches AST nodes that were expanded within the main-file. 3136 3137Example matches X but not Y 3138 (matcher = cxxRecordDecl(isExpansionInMainFile()) 3139 #include <Y.h> 3140 class X {}; 3141Y.h: 3142 class Y {}; 3143 3144Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>> 3145</pre></td></tr> 3146 3147 3148<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('isExpansionInSystemHeader1')"><a name="isExpansionInSystemHeader1Anchor">isExpansionInSystemHeader</a></td><td></td></tr> 3149<tr><td colspan="4" class="doc" id="isExpansionInSystemHeader1"><pre>Matches AST nodes that were expanded within system-header-files. 3150 3151Example matches Y but not X 3152 (matcher = cxxRecordDecl(isExpansionInSystemHeader()) 3153 #include <SystemHeader.h> 3154 class X {}; 3155SystemHeader.h: 3156 class Y {}; 3157 3158Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>> 3159</pre></td></tr> 3160 3161 3162<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1StringLiteral.html">StringLiteral</a>></td><td class="name" onclick="toggle('hasSize1')"><a name="hasSize1Anchor">hasSize</a></td><td>unsigned N</td></tr> 3163<tr><td colspan="4" class="doc" id="hasSize1"><pre>Matches nodes that have the specified size. 3164 3165Given 3166 int a[42]; 3167 int b[2 * 21]; 3168 int c[41], d[43]; 3169 char *s = "abcd"; 3170 wchar_t *ws = L"abcd"; 3171 char *w = "a"; 3172constantArrayType(hasSize(42)) 3173 matches "int a[42]" and "int b[2 * 21]" 3174stringLiteral(hasSize(4)) 3175 matches "abcd", L"abcd" 3176</pre></td></tr> 3177 3178 3179<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagDecl.html">TagDecl</a>></td><td class="name" onclick="toggle('isDefinition0')"><a name="isDefinition0Anchor">isDefinition</a></td><td></td></tr> 3180<tr><td colspan="4" class="doc" id="isDefinition0"><pre>Matches if a declaration has a body attached. 3181 3182Example matches A, va, fa 3183 class A {}; 3184 class B; Doesn't match, as it has no body. 3185 int va; 3186 extern int vb; Doesn't match, as it doesn't define the variable. 3187 void fa() {} 3188 void fb(); Doesn't match, as it has no body. 3189 3190Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagDecl.html">TagDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>> 3191</pre></td></tr> 3192 3193 3194<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>></td><td class="name" onclick="toggle('equalsIntegralValue0')"><a name="equalsIntegralValue0Anchor">equalsIntegralValue</a></td><td>std::string Value</td></tr> 3195<tr><td colspan="4" class="doc" id="equalsIntegralValue0"><pre>Matches a TemplateArgument of integral type with a given value. 3196 3197Note that 'Value' is a string as the template argument's value is 3198an arbitrary precision integer. 'Value' must be euqal to the canonical 3199representation of that integral value in base 10. 3200 3201Given 3202 template<int T> struct A {}; 3203 C<42> c; 3204classTemplateSpecializationDecl( 3205 hasAnyTemplateArgument(equalsIntegralValue("42"))) 3206 matches the implicit instantiation of C in C<42>. 3207</pre></td></tr> 3208 3209 3210<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>></td><td class="name" onclick="toggle('isIntegral0')"><a name="isIntegral0Anchor">isIntegral</a></td><td></td></tr> 3211<tr><td colspan="4" class="doc" id="isIntegral0"><pre>Matches a TemplateArgument that is an integral value. 3212 3213Given 3214 template<int T> struct A {}; 3215 C<42> c; 3216classTemplateSpecializationDecl( 3217 hasAnyTemplateArgument(isIntegral())) 3218 matches the implicit instantiation of C in C<42> 3219 with isIntegral() matching 42. 3220</pre></td></tr> 3221 3222 3223<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>></td><td class="name" onclick="toggle('templateArgumentCountIs1')"><a name="templateArgumentCountIs1Anchor">templateArgumentCountIs</a></td><td>unsigned N</td></tr> 3224<tr><td colspan="4" class="doc" id="templateArgumentCountIs1"><pre>Matches if the number of template arguments equals N. 3225 3226Given 3227 template<typename T> struct C {}; 3228 C<int> c; 3229classTemplateSpecializationDecl(templateArgumentCountIs(1)) 3230 matches C<int>. 3231</pre></td></tr> 3232 3233 3234<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>></td><td class="name" onclick="toggle('isExpansionInFileMatching2')"><a name="isExpansionInFileMatching2Anchor">isExpansionInFileMatching</a></td><td>std::string RegExp</td></tr> 3235<tr><td colspan="4" class="doc" id="isExpansionInFileMatching2"><pre>Matches AST nodes that were expanded within files whose name is 3236partially matching a given regex. 3237 3238Example matches Y but not X 3239 (matcher = cxxRecordDecl(isExpansionInFileMatching("AST.*")) 3240 #include "ASTMatcher.h" 3241 class X {}; 3242ASTMatcher.h: 3243 class Y {}; 3244 3245Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>> 3246</pre></td></tr> 3247 3248 3249<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>></td><td class="name" onclick="toggle('isExpansionInMainFile2')"><a name="isExpansionInMainFile2Anchor">isExpansionInMainFile</a></td><td></td></tr> 3250<tr><td colspan="4" class="doc" id="isExpansionInMainFile2"><pre>Matches AST nodes that were expanded within the main-file. 3251 3252Example matches X but not Y 3253 (matcher = cxxRecordDecl(isExpansionInMainFile()) 3254 #include <Y.h> 3255 class X {}; 3256Y.h: 3257 class Y {}; 3258 3259Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>> 3260</pre></td></tr> 3261 3262 3263<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>></td><td class="name" onclick="toggle('isExpansionInSystemHeader2')"><a name="isExpansionInSystemHeader2Anchor">isExpansionInSystemHeader</a></td><td></td></tr> 3264<tr><td colspan="4" class="doc" id="isExpansionInSystemHeader2"><pre>Matches AST nodes that were expanded within system-header-files. 3265 3266Example matches Y but not X 3267 (matcher = cxxRecordDecl(isExpansionInSystemHeader()) 3268 #include <SystemHeader.h> 3269 class X {}; 3270SystemHeader.h: 3271 class Y {}; 3272 3273Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>> 3274</pre></td></tr> 3275 3276 3277<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('booleanType0')"><a name="booleanType0Anchor">booleanType</a></td><td></td></tr> 3278<tr><td colspan="4" class="doc" id="booleanType0"><pre>Matches type bool. 3279 3280Given 3281 struct S { bool func(); }; 3282functionDecl(returns(booleanType())) 3283 matches "bool func();" 3284</pre></td></tr> 3285 3286 3287<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('equalsBoundNode2')"><a name="equalsBoundNode2Anchor">equalsBoundNode</a></td><td>std::string ID</td></tr> 3288<tr><td colspan="4" class="doc" id="equalsBoundNode2"><pre>Matches if a node equals a previously bound node. 3289 3290Matches a node if it equals the node previously bound to ID. 3291 3292Given 3293 class X { int a; int b; }; 3294cxxRecordDecl( 3295 has(fieldDecl(hasName("a"), hasType(type().bind("t")))), 3296 has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t")))))) 3297 matches the class X, as a and b have the same type. 3298 3299Note that when multiple matches are involved via forEach* matchers, 3300equalsBoundNodes acts as a filter. 3301For example: 3302compoundStmt( 3303 forEachDescendant(varDecl().bind("d")), 3304 forEachDescendant(declRefExpr(to(decl(equalsBoundNode("d")))))) 3305will trigger a match for each combination of variable declaration 3306and reference to that variable declaration within a compound statement. 3307</pre></td></tr> 3308 3309 3310<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('equalsNode2')"><a name="equalsNode2Anchor">equalsNode</a></td><td>const Type* Other</td></tr> 3311<tr><td colspan="4" class="doc" id="equalsNode2"><pre>Matches if a node equals another node. 3312 3313Type has pointer identity in the AST. 3314</pre></td></tr> 3315 3316 3317<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('realFloatingPointType0')"><a name="realFloatingPointType0Anchor">realFloatingPointType</a></td><td></td></tr> 3318<tr><td colspan="4" class="doc" id="realFloatingPointType0"><pre>Matches any real floating-point type (float, double, long double). 3319 3320Given 3321 int i; 3322 float f; 3323realFloatingPointType() 3324 matches "float f" but not "int i" 3325</pre></td></tr> 3326 3327 3328<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td><td class="name" onclick="toggle('voidType0')"><a name="voidType0Anchor">voidType</a></td><td></td></tr> 3329<tr><td colspan="4" class="doc" id="voidType0"><pre>Matches type void. 3330 3331Given 3332 struct S { void func(); }; 3333functionDecl(returns(voidType())) 3334 matches "void func();" 3335</pre></td></tr> 3336 3337 3338<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnaryExprOrTypeTraitExpr.html">UnaryExprOrTypeTraitExpr</a>></td><td class="name" onclick="toggle('ofKind0')"><a name="ofKind0Anchor">ofKind</a></td><td>UnaryExprOrTypeTrait Kind</td></tr> 3339<tr><td colspan="4" class="doc" id="ofKind0"><pre>Matches unary expressions of a certain kind. 3340 3341Given 3342 int x; 3343 int s = sizeof(x) + alignof(x) 3344unaryExprOrTypeTraitExpr(ofKind(UETT_SizeOf)) 3345 matches sizeof(x) 3346</pre></td></tr> 3347 3348 3349<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnaryOperator.html">UnaryOperator</a>></td><td class="name" onclick="toggle('hasOperatorName1')"><a name="hasOperatorName1Anchor">hasOperatorName</a></td><td>std::string Name</td></tr> 3350<tr><td colspan="4" class="doc" id="hasOperatorName1"><pre>Matches the operator Name of operator expressions (binary or 3351unary). 3352 3353Example matches a || b (matcher = binaryOperator(hasOperatorName("||"))) 3354 !(a || b) 3355</pre></td></tr> 3356 3357 3358<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('hasAutomaticStorageDuration0')"><a name="hasAutomaticStorageDuration0Anchor">hasAutomaticStorageDuration</a></td><td></td></tr> 3359<tr><td colspan="4" class="doc" id="hasAutomaticStorageDuration0"><pre>Matches a variable declaration that has automatic storage duration. 3360 3361Example matches x, but not y, z, or a. 3362(matcher = varDecl(hasAutomaticStorageDuration()) 3363void f() { 3364 int x; 3365 static int y; 3366 thread_local int z; 3367} 3368int a; 3369</pre></td></tr> 3370 3371 3372<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('hasGlobalStorage0')"><a name="hasGlobalStorage0Anchor">hasGlobalStorage</a></td><td></td></tr> 3373<tr><td colspan="4" class="doc" id="hasGlobalStorage0"><pre>Matches a variable declaration that does not have local storage. 3374 3375Example matches y and z (matcher = varDecl(hasGlobalStorage()) 3376void f() { 3377 int x; 3378 static int y; 3379} 3380int z; 3381</pre></td></tr> 3382 3383 3384<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('hasLocalStorage0')"><a name="hasLocalStorage0Anchor">hasLocalStorage</a></td><td></td></tr> 3385<tr><td colspan="4" class="doc" id="hasLocalStorage0"><pre>Matches a variable declaration that has function scope and is a 3386non-static local variable. 3387 3388Example matches x (matcher = varDecl(hasLocalStorage()) 3389void f() { 3390 int x; 3391 static int y; 3392} 3393int z; 3394</pre></td></tr> 3395 3396 3397<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('hasStaticStorageDuration0')"><a name="hasStaticStorageDuration0Anchor">hasStaticStorageDuration</a></td><td></td></tr> 3398<tr><td colspan="4" class="doc" id="hasStaticStorageDuration0"><pre>Matches a variable declaration that has static storage duration. 3399It includes the variable declared at namespace scope and those declared 3400with "static" and "extern" storage class specifiers. 3401 3402void f() { 3403 int x; 3404 static int y; 3405 thread_local int z; 3406} 3407int a; 3408static int b; 3409extern int c; 3410varDecl(hasStaticStorageDuration()) 3411 matches the function declaration y, a, b and c. 3412</pre></td></tr> 3413 3414 3415<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('hasThreadStorageDuration0')"><a name="hasThreadStorageDuration0Anchor">hasThreadStorageDuration</a></td><td></td></tr> 3416<tr><td colspan="4" class="doc" id="hasThreadStorageDuration0"><pre>Matches a variable declaration that has thread storage duration. 3417 3418Example matches z, but not x, z, or a. 3419(matcher = varDecl(hasThreadStorageDuration()) 3420void f() { 3421 int x; 3422 static int y; 3423 thread_local int z; 3424} 3425int a; 3426</pre></td></tr> 3427 3428 3429<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('isConstexpr0')"><a name="isConstexpr0Anchor">isConstexpr</a></td><td></td></tr> 3430<tr><td colspan="4" class="doc" id="isConstexpr0"><pre>Matches constexpr variable and function declarations. 3431 3432Given: 3433 constexpr int foo = 42; 3434 constexpr int bar(); 3435varDecl(isConstexpr()) 3436 matches the declaration of foo. 3437functionDecl(isConstexpr()) 3438 matches the declaration of bar. 3439</pre></td></tr> 3440 3441 3442<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('isDefinition1')"><a name="isDefinition1Anchor">isDefinition</a></td><td></td></tr> 3443<tr><td colspan="4" class="doc" id="isDefinition1"><pre>Matches if a declaration has a body attached. 3444 3445Example matches A, va, fa 3446 class A {}; 3447 class B; Doesn't match, as it has no body. 3448 int va; 3449 extern int vb; Doesn't match, as it doesn't define the variable. 3450 void fa() {} 3451 void fb(); Doesn't match, as it has no body. 3452 3453Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagDecl.html">TagDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>> 3454</pre></td></tr> 3455 3456 3457<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('isExceptionVariable0')"><a name="isExceptionVariable0Anchor">isExceptionVariable</a></td><td></td></tr> 3458<tr><td colspan="4" class="doc" id="isExceptionVariable0"><pre>Matches a variable declaration that is an exception variable from 3459a C++ catch block, or an Objective-C statement. 3460 3461Example matches x (matcher = varDecl(isExceptionVariable()) 3462void f(int y) { 3463 try { 3464 } catch (int x) { 3465 } 3466} 3467</pre></td></tr> 3468 3469 3470<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('isExplicitTemplateSpecialization1')"><a name="isExplicitTemplateSpecialization1Anchor">isExplicitTemplateSpecialization</a></td><td></td></tr> 3471<tr><td colspan="4" class="doc" id="isExplicitTemplateSpecialization1"><pre>Matches explicit template specializations of function, class, or 3472static member variable template instantiations. 3473 3474Given 3475 template<typename T> void A(T t) { } 3476 template<> void A(int N) { } 3477functionDecl(isExplicitTemplateSpecialization()) 3478 matches the specialization A<int>(). 3479 3480Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>> 3481</pre></td></tr> 3482 3483 3484<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('isExternC1')"><a name="isExternC1Anchor">isExternC</a></td><td></td></tr> 3485<tr><td colspan="4" class="doc" id="isExternC1"><pre>Matches extern "C" function declarations. 3486 3487Given: 3488 extern "C" void f() {} 3489 extern "C" { void g() {} } 3490 void h() {} 3491functionDecl(isExternC()) 3492 matches the declaration of f and g, but not the declaration h 3493</pre></td></tr> 3494 3495 3496<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('isStaticStorageClass1')"><a name="isStaticStorageClass1Anchor">isStaticStorageClass</a></td><td></td></tr> 3497<tr><td colspan="4" class="doc" id="isStaticStorageClass1"><pre>Matches variablefunction declarations that have "static" storage 3498class specifier ("static" keyword) written in the source. 3499 3500Given: 3501 static void f() {} 3502 static int i = 0; 3503 extern int j; 3504 int k; 3505functionDecl(isStaticStorageClass()) 3506 matches the function declaration f. 3507varDecl(isStaticStorageClass()) 3508 matches the variable declaration i. 3509</pre></td></tr> 3510 3511 3512<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('isTemplateInstantiation1')"><a name="isTemplateInstantiation1Anchor">isTemplateInstantiation</a></td><td></td></tr> 3513<tr><td colspan="4" class="doc" id="isTemplateInstantiation1"><pre>Matches template instantiations of function, class, or static 3514member variable template instantiations. 3515 3516Given 3517 template <typename T> class X {}; class A {}; X<A> x; 3518or 3519 template <typename T> class X {}; class A {}; template class X<A>; 3520cxxRecordDecl(hasName("::X"), isTemplateInstantiation()) 3521 matches the template instantiation of X<A>. 3522 3523But given 3524 template <typename T> class X {}; class A {}; 3525 template <> class X<A> {}; X<A> x; 3526cxxRecordDecl(hasName("::X"), isTemplateInstantiation()) 3527 does not match, as X<A> is an explicit template specialization. 3528 3529Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>> 3530</pre></td></tr> 3531 3532 3533<tr><td>Matcher<internal::Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>></td><td class="name" onclick="toggle('isInstantiated0')"><a name="isInstantiated0Anchor">isInstantiated</a></td><td></td></tr> 3534<tr><td colspan="4" class="doc" id="isInstantiated0"><pre>Matches declarations that are template instantiations or are inside 3535template instantiations. 3536 3537Given 3538 template<typename T> void A(T t) { T i; } 3539 A(0); 3540 A(0U); 3541functionDecl(isInstantiated()) 3542 matches 'A(int) {...};' and 'A(unsigned) {...}'. 3543</pre></td></tr> 3544 3545 3546<tr><td>Matcher<internal::Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>>></td><td class="name" onclick="toggle('nullPointerConstant0')"><a name="nullPointerConstant0Anchor">nullPointerConstant</a></td><td></td></tr> 3547<tr><td colspan="4" class="doc" id="nullPointerConstant0"><pre>Matches expressions that resolve to a null pointer constant, such as 3548GNU's __null, C++11's nullptr, or C's NULL macro. 3549 3550Given: 3551 void *v1 = NULL; 3552 void *v2 = nullptr; 3553 void *v3 = __null; GNU extension 3554 char *cp = (char *)0; 3555 int *ip = 0; 3556 int i = 0; 3557expr(nullPointerConstant()) 3558 matches the initializer for v1, v2, v3, cp, and ip. Does not match the 3559 initializer for i. 3560</pre></td></tr> 3561 3562 3563<tr><td>Matcher<internal::Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamedDecl.html">NamedDecl</a>>></td><td class="name" onclick="toggle('hasAnyName0')"><a name="hasAnyName0Anchor">hasAnyName</a></td><td>StringRef, ..., StringRef</td></tr> 3564<tr><td colspan="4" class="doc" id="hasAnyName0"><pre>Matches NamedDecl nodes that have any of the specified names. 3565 3566This matcher is only provided as a performance optimization of hasName. 3567 hasAnyName(a, b, c) 3568 is equivalent to, but faster than 3569 anyOf(hasName(a), hasName(b), hasName(c)) 3570</pre></td></tr> 3571 3572 3573<tr><td>Matcher<internal::Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>>></td><td class="name" onclick="toggle('isInTemplateInstantiation0')"><a name="isInTemplateInstantiation0Anchor">isInTemplateInstantiation</a></td><td></td></tr> 3574<tr><td colspan="4" class="doc" id="isInTemplateInstantiation0"><pre>Matches statements inside of a template instantiation. 3575 3576Given 3577 int j; 3578 template<typename T> void A(T t) { T i; j += 42;} 3579 A(0); 3580 A(0U); 3581declStmt(isInTemplateInstantiation()) 3582 matches 'int i;' and 'unsigned i'. 3583unless(stmt(isInTemplateInstantiation())) 3584 will NOT match j += 42; as it's shared between the template definition and 3585 instantiation. 3586</pre></td></tr> 3587 3588<!--END_NARROWING_MATCHERS --> 3589</table> 3590 3591<!-- ======================================================================= --> 3592<h2 id="traversal-matchers">AST Traversal Matchers</h2> 3593<!-- ======================================================================= --> 3594 3595<p>Traversal matchers specify the relationship to other nodes that are 3596reachable from the current node.</p> 3597 3598<p>Note that there are special traversal matchers (has, hasDescendant, forEach and 3599forEachDescendant) which work on all nodes and allow users to write more generic 3600match expressions.</p> 3601 3602<table> 3603<tr style="text-align:left"><th>Return type</th><th>Name</th><th>Parameters</th></tr> 3604<!-- START_TRAVERSAL_MATCHERS --> 3605 3606<tr><td>Matcher<*></td><td class="name" onclick="toggle('eachOf0')"><a name="eachOf0Anchor">eachOf</a></td><td>Matcher<*>, ..., Matcher<*></td></tr> 3607<tr><td colspan="4" class="doc" id="eachOf0"><pre>Matches if any of the given matchers matches. 3608 3609Unlike anyOf, eachOf will generate a match result for each 3610matching submatcher. 3611 3612For example, in: 3613 class A { int a; int b; }; 3614The matcher: 3615 cxxRecordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")), 3616 has(fieldDecl(hasName("b")).bind("v")))) 3617will generate two results binding "v", the first of which binds 3618the field declaration of a, the second the field declaration of 3619b. 3620 3621Usable as: Any Matcher 3622</pre></td></tr> 3623 3624 3625<tr><td>Matcher<*></td><td class="name" onclick="toggle('forEachDescendant0')"><a name="forEachDescendant0Anchor">forEachDescendant</a></td><td>Matcher<*></td></tr> 3626<tr><td colspan="4" class="doc" id="forEachDescendant0"><pre>Matches AST nodes that have descendant AST nodes that match the 3627provided matcher. 3628 3629Example matches X, A, B, C 3630 (matcher = cxxRecordDecl(forEachDescendant(cxxRecordDecl(hasName("X"))))) 3631 class X {}; Matches X, because X::X is a class of name X inside X. 3632 class A { class X {}; }; 3633 class B { class C { class X {}; }; }; 3634 3635DescendantT must be an AST base type. 3636 3637As opposed to 'hasDescendant', 'forEachDescendant' will cause a match for 3638each result that matches instead of only on the first one. 3639 3640Note: Recursively combined ForEachDescendant can cause many matches: 3641 cxxRecordDecl(forEachDescendant(cxxRecordDecl( 3642 forEachDescendant(cxxRecordDecl()) 3643 ))) 3644will match 10 times (plus injected class name matches) on: 3645 class A { class B { class C { class D { class E {}; }; }; }; }; 3646 3647Usable as: Any Matcher 3648</pre></td></tr> 3649 3650 3651<tr><td>Matcher<*></td><td class="name" onclick="toggle('forEach0')"><a name="forEach0Anchor">forEach</a></td><td>Matcher<*></td></tr> 3652<tr><td colspan="4" class="doc" id="forEach0"><pre>Matches AST nodes that have child AST nodes that match the 3653provided matcher. 3654 3655Example matches X, Y 3656 (matcher = cxxRecordDecl(forEach(cxxRecordDecl(hasName("X"))) 3657 class X {}; Matches X, because X::X is a class of name X inside X. 3658 class Y { class X {}; }; 3659 class Z { class Y { class X {}; }; }; Does not match Z. 3660 3661ChildT must be an AST base type. 3662 3663As opposed to 'has', 'forEach' will cause a match for each result that 3664matches instead of only on the first one. 3665 3666Usable as: Any Matcher 3667</pre></td></tr> 3668 3669 3670<tr><td>Matcher<*></td><td class="name" onclick="toggle('hasAncestor0')"><a name="hasAncestor0Anchor">hasAncestor</a></td><td>Matcher<*></td></tr> 3671<tr><td colspan="4" class="doc" id="hasAncestor0"><pre>Matches AST nodes that have an ancestor that matches the provided 3672matcher. 3673 3674Given 3675void f() { if (true) { int x = 42; } } 3676void g() { for (;;) { int x = 43; } } 3677expr(integerLiteral(hasAncestor(ifStmt()))) matches 42, but not 43. 3678 3679Usable as: Any Matcher 3680</pre></td></tr> 3681 3682 3683<tr><td>Matcher<*></td><td class="name" onclick="toggle('hasDescendant0')"><a name="hasDescendant0Anchor">hasDescendant</a></td><td>Matcher<*></td></tr> 3684<tr><td colspan="4" class="doc" id="hasDescendant0"><pre>Matches AST nodes that have descendant AST nodes that match the 3685provided matcher. 3686 3687Example matches X, Y, Z 3688 (matcher = cxxRecordDecl(hasDescendant(cxxRecordDecl(hasName("X"))))) 3689 class X {}; Matches X, because X::X is a class of name X inside X. 3690 class Y { class X {}; }; 3691 class Z { class Y { class X {}; }; }; 3692 3693DescendantT must be an AST base type. 3694 3695Usable as: Any Matcher 3696</pre></td></tr> 3697 3698 3699<tr><td>Matcher<*></td><td class="name" onclick="toggle('has0')"><a name="has0Anchor">has</a></td><td>Matcher<*></td></tr> 3700<tr><td colspan="4" class="doc" id="has0"><pre>Matches AST nodes that have child AST nodes that match the 3701provided matcher. 3702 3703Example matches X, Y 3704 (matcher = cxxRecordDecl(has(cxxRecordDecl(hasName("X"))) 3705 class X {}; Matches X, because X::X is a class of name X inside X. 3706 class Y { class X {}; }; 3707 class Z { class Y { class X {}; }; }; Does not match Z. 3708 3709ChildT must be an AST base type. 3710 3711Usable as: Any Matcher 3712Note that has is direct matcher, so it also matches things like implicit 3713casts and paren casts. If you are matching with expr then you should 3714probably consider using ignoringParenImpCasts like: 3715has(ignoringParenImpCasts(expr())). 3716</pre></td></tr> 3717 3718 3719<tr><td>Matcher<*></td><td class="name" onclick="toggle('hasParent0')"><a name="hasParent0Anchor">hasParent</a></td><td>Matcher<*></td></tr> 3720<tr><td colspan="4" class="doc" id="hasParent0"><pre>Matches AST nodes that have a parent that matches the provided 3721matcher. 3722 3723Given 3724void f() { for (;;) { int x = 42; if (true) { int x = 43; } } } 3725compoundStmt(hasParent(ifStmt())) matches "{ int x = 43; }". 3726 3727Usable as: Any Matcher 3728</pre></td></tr> 3729 3730 3731<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AbstractConditionalOperator.html">AbstractConditionalOperator</a>></td><td class="name" onclick="toggle('hasCondition5')"><a name="hasCondition5Anchor">hasCondition</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3732<tr><td colspan="4" class="doc" id="hasCondition5"><pre>Matches the condition expression of an if statement, for loop, 3733switch statement or conditional operator. 3734 3735Example matches true (matcher = hasCondition(cxxBoolLiteral(equals(true)))) 3736 if (true) {} 3737</pre></td></tr> 3738 3739 3740<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AbstractConditionalOperator.html">AbstractConditionalOperator</a>></td><td class="name" onclick="toggle('hasFalseExpression0')"><a name="hasFalseExpression0Anchor">hasFalseExpression</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3741<tr><td colspan="4" class="doc" id="hasFalseExpression0"><pre>Matches the false branch expression of a conditional operator 3742(binary or ternary). 3743 3744Example matches b 3745 condition ? a : b 3746 condition ?: b 3747</pre></td></tr> 3748 3749 3750<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AbstractConditionalOperator.html">AbstractConditionalOperator</a>></td><td class="name" onclick="toggle('hasTrueExpression0')"><a name="hasTrueExpression0Anchor">hasTrueExpression</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3751<tr><td colspan="4" class="doc" id="hasTrueExpression0"><pre>Matches the true branch expression of a conditional operator. 3752 3753Example 1 (conditional ternary operator): matches a 3754 condition ? a : b 3755 3756Example 2 (conditional binary operator): matches opaqueValueExpr(condition) 3757 condition ?: b 3758</pre></td></tr> 3759 3760 3761<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>></td><td class="name" onclick="toggle('hasDeclaration8')"><a name="hasDeclaration8Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 3762<tr><td colspan="4" class="doc" id="hasDeclaration8"><pre>Matches a node if the declaration associated with that node 3763matches the given matcher. 3764 3765The associated declaration is: 3766- for type nodes, the declaration of the underlying type 3767- for CallExpr, the declaration of the callee 3768- for MemberExpr, the declaration of the referenced member 3769- for CXXConstructExpr, the declaration of the constructor 3770 3771Also usable as Matcher<T> for any T supporting the getDecl() member 3772function. e.g. various subtypes of clang::Type and various expressions. 3773 3774Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 3775 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 3776 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 3777 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 3778 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 3779 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 3780</pre></td></tr> 3781 3782 3783<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArraySubscriptExpr.html">ArraySubscriptExpr</a>></td><td class="name" onclick="toggle('hasBase0')"><a name="hasBase0Anchor">hasBase</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3784<tr><td colspan="4" class="doc" id="hasBase0"><pre>Matches the base expression of an array subscript expression. 3785 3786Given 3787 int i[5]; 3788 void f() { i[1] = 42; } 3789arraySubscriptExpression(hasBase(implicitCastExpr( 3790 hasSourceExpression(declRefExpr())))) 3791 matches i[1] with the declRefExpr() matching i 3792</pre></td></tr> 3793 3794 3795<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArraySubscriptExpr.html">ArraySubscriptExpr</a>></td><td class="name" onclick="toggle('hasIndex0')"><a name="hasIndex0Anchor">hasIndex</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3796<tr><td colspan="4" class="doc" id="hasIndex0"><pre>Matches the index expression of an array subscript expression. 3797 3798Given 3799 int i[5]; 3800 void f() { i[1] = 42; } 3801arraySubscriptExpression(hasIndex(integerLiteral())) 3802 matches i[1] with the integerLiteral() matching 1 3803</pre></td></tr> 3804 3805 3806<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArraySubscriptExpr.html">ArraySubscriptExpr</a>></td><td class="name" onclick="toggle('hasLHS1')"><a name="hasLHS1Anchor">hasLHS</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3807<tr><td colspan="4" class="doc" id="hasLHS1"><pre>Matches the left hand side of binary operator expressions. 3808 3809Example matches a (matcher = binaryOperator(hasLHS())) 3810 a || b 3811</pre></td></tr> 3812 3813 3814<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArraySubscriptExpr.html">ArraySubscriptExpr</a>></td><td class="name" onclick="toggle('hasRHS1')"><a name="hasRHS1Anchor">hasRHS</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3815<tr><td colspan="4" class="doc" id="hasRHS1"><pre>Matches the right hand side of binary operator expressions. 3816 3817Example matches b (matcher = binaryOperator(hasRHS())) 3818 a || b 3819</pre></td></tr> 3820 3821 3822<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArrayTypeLoc.html">ArrayTypeLoc</a>></td><td class="name" onclick="toggle('hasElementTypeLoc0')"><a name="hasElementTypeLoc0Anchor">hasElementTypeLoc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>></td></tr> 3823<tr><td colspan="4" class="doc" id="hasElementTypeLoc0"><pre>Matches arrays and C99 complex types that have a specific element 3824type. 3825 3826Given 3827 struct A {}; 3828 A a[7]; 3829 int b[7]; 3830arrayType(hasElementType(builtinType())) 3831 matches "int b[7]" 3832 3833Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArrayType.html">ArrayType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ComplexType.html">ComplexType</a>> 3834</pre></td></tr> 3835 3836 3837<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArrayType.html">ArrayType</a>></td><td class="name" onclick="toggle('hasElementType0')"><a name="hasElementType0Anchor">hasElementType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td></tr> 3838<tr><td colspan="4" class="doc" id="hasElementType0"><pre>Matches arrays and C99 complex types that have a specific element 3839type. 3840 3841Given 3842 struct A {}; 3843 A a[7]; 3844 int b[7]; 3845arrayType(hasElementType(builtinType())) 3846 matches "int b[7]" 3847 3848Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArrayType.html">ArrayType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ComplexType.html">ComplexType</a>> 3849</pre></td></tr> 3850 3851 3852<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AtomicTypeLoc.html">AtomicTypeLoc</a>></td><td class="name" onclick="toggle('hasValueTypeLoc0')"><a name="hasValueTypeLoc0Anchor">hasValueTypeLoc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>></td></tr> 3853<tr><td colspan="4" class="doc" id="hasValueTypeLoc0"><pre>Matches atomic types with a specific value type. 3854 3855Given 3856 _Atomic(int) i; 3857 _Atomic(float) f; 3858atomicType(hasValueType(isInteger())) 3859 matches "_Atomic(int) i" 3860 3861Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AtomicType.html">AtomicType</a>> 3862</pre></td></tr> 3863 3864 3865<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AtomicType.html">AtomicType</a>></td><td class="name" onclick="toggle('hasValueType0')"><a name="hasValueType0Anchor">hasValueType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td></tr> 3866<tr><td colspan="4" class="doc" id="hasValueType0"><pre>Matches atomic types with a specific value type. 3867 3868Given 3869 _Atomic(int) i; 3870 _Atomic(float) f; 3871atomicType(hasValueType(isInteger())) 3872 matches "_Atomic(int) i" 3873 3874Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AtomicType.html">AtomicType</a>> 3875</pre></td></tr> 3876 3877 3878<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AutoType.html">AutoType</a>></td><td class="name" onclick="toggle('hasDeducedType0')"><a name="hasDeducedType0Anchor">hasDeducedType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td></tr> 3879<tr><td colspan="4" class="doc" id="hasDeducedType0"><pre>Matches AutoType nodes where the deduced type is a specific type. 3880 3881Note: There is no TypeLoc for the deduced type and thus no 3882getDeducedLoc() matcher. 3883 3884Given 3885 auto a = 1; 3886 auto b = 2.0; 3887autoType(hasDeducedType(isInteger())) 3888 matches "auto a" 3889 3890Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AutoType.html">AutoType</a>> 3891</pre></td></tr> 3892 3893 3894<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BinaryOperator.html">BinaryOperator</a>></td><td class="name" onclick="toggle('hasEitherOperand0')"><a name="hasEitherOperand0Anchor">hasEitherOperand</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3895<tr><td colspan="4" class="doc" id="hasEitherOperand0"><pre>Matches if either the left hand side or the right hand side of a 3896binary operator matches. 3897</pre></td></tr> 3898 3899 3900<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BinaryOperator.html">BinaryOperator</a>></td><td class="name" onclick="toggle('hasLHS0')"><a name="hasLHS0Anchor">hasLHS</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3901<tr><td colspan="4" class="doc" id="hasLHS0"><pre>Matches the left hand side of binary operator expressions. 3902 3903Example matches a (matcher = binaryOperator(hasLHS())) 3904 a || b 3905</pre></td></tr> 3906 3907 3908<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BinaryOperator.html">BinaryOperator</a>></td><td class="name" onclick="toggle('hasRHS0')"><a name="hasRHS0Anchor">hasRHS</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3909<tr><td colspan="4" class="doc" id="hasRHS0"><pre>Matches the right hand side of binary operator expressions. 3910 3911Example matches b (matcher = binaryOperator(hasRHS())) 3912 a || b 3913</pre></td></tr> 3914 3915 3916<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BlockPointerTypeLoc.html">BlockPointerTypeLoc</a>></td><td class="name" onclick="toggle('pointeeLoc0')"><a name="pointeeLoc0Anchor">pointeeLoc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>></td></tr> 3917<tr><td colspan="4" class="doc" id="pointeeLoc0"><pre>Narrows PointerType (and similar) matchers to those where the 3918pointee matches a given matcher. 3919 3920Given 3921 int *a; 3922 int const *b; 3923 float const *f; 3924pointerType(pointee(isConstQualified(), isInteger())) 3925 matches "int const *b" 3926 3927Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BlockPointerType.html">BlockPointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberPointerType.html">MemberPointerType</a>>, 3928 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerType.html">PointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReferenceType.html">ReferenceType</a>> 3929</pre></td></tr> 3930 3931 3932<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BlockPointerType.html">BlockPointerType</a>></td><td class="name" onclick="toggle('pointee0')"><a name="pointee0Anchor">pointee</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td></tr> 3933<tr><td colspan="4" class="doc" id="pointee0"><pre>Narrows PointerType (and similar) matchers to those where the 3934pointee matches a given matcher. 3935 3936Given 3937 int *a; 3938 int const *b; 3939 float const *f; 3940pointerType(pointee(isConstQualified(), isInteger())) 3941 matches "int const *b" 3942 3943Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BlockPointerType.html">BlockPointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberPointerType.html">MemberPointerType</a>>, 3944 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerType.html">PointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReferenceType.html">ReferenceType</a>> 3945</pre></td></tr> 3946 3947 3948<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>></td><td class="name" onclick="toggle('forEachArgumentWithParam1')"><a name="forEachArgumentWithParam1Anchor">forEachArgumentWithParam</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> ArgMatcher, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ParmVarDecl.html">ParmVarDecl</a>> ParamMatcher</td></tr> 3949<tr><td colspan="4" class="doc" id="forEachArgumentWithParam1"><pre>Matches all arguments and their respective ParmVarDecl. 3950 3951Given 3952 void f(int i); 3953 int y; 3954 f(y); 3955callExpr( 3956 forEachArgumentWithParam( 3957 declRefExpr(to(varDecl(hasName("y")))), 3958 parmVarDecl(hasType(isInteger())) 3959)) 3960 matches f(y); 3961with declRefExpr(...) 3962 matching int y 3963and parmVarDecl(...) 3964 matching int i 3965</pre></td></tr> 3966 3967 3968<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>></td><td class="name" onclick="toggle('hasAnyArgument1')"><a name="hasAnyArgument1Anchor">hasAnyArgument</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3969<tr><td colspan="4" class="doc" id="hasAnyArgument1"><pre>Matches any argument of a call expression or a constructor call 3970expression. 3971 3972Given 3973 void x(int, int, int) { int y; x(1, y, 42); } 3974callExpr(hasAnyArgument(declRefExpr())) 3975 matches x(1, y, 42) 3976with hasAnyArgument(...) 3977 matching y 3978</pre></td></tr> 3979 3980 3981<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>></td><td class="name" onclick="toggle('hasArgument1')"><a name="hasArgument1Anchor">hasArgument</a></td><td>unsigned N, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 3982<tr><td colspan="4" class="doc" id="hasArgument1"><pre>Matches the n'th argument of a call expression or a constructor 3983call expression. 3984 3985Example matches y in x(y) 3986 (matcher = callExpr(hasArgument(0, declRefExpr()))) 3987 void x(int) { int y; x(y); } 3988</pre></td></tr> 3989 3990 3991<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>></td><td class="name" onclick="toggle('hasDeclaration13')"><a name="hasDeclaration13Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 3992<tr><td colspan="4" class="doc" id="hasDeclaration13"><pre>Matches a node if the declaration associated with that node 3993matches the given matcher. 3994 3995The associated declaration is: 3996- for type nodes, the declaration of the underlying type 3997- for CallExpr, the declaration of the callee 3998- for MemberExpr, the declaration of the referenced member 3999- for CXXConstructExpr, the declaration of the constructor 4000 4001Also usable as Matcher<T> for any T supporting the getDecl() member 4002function. e.g. various subtypes of clang::Type and various expressions. 4003 4004Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 4005 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 4006 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 4007 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 4008 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 4009 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 4010</pre></td></tr> 4011 4012 4013<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructorDecl.html">CXXConstructorDecl</a>></td><td class="name" onclick="toggle('forEachConstructorInitializer0')"><a name="forEachConstructorInitializer0Anchor">forEachConstructorInitializer</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>> InnerMatcher</td></tr> 4014<tr><td colspan="4" class="doc" id="forEachConstructorInitializer0"><pre>Matches each constructor initializer in a constructor definition. 4015 4016Given 4017 class A { A() : i(42), j(42) {} int i; int j; }; 4018cxxConstructorDecl(forEachConstructorInitializer( 4019 forField(decl().bind("x")) 4020)) 4021 will trigger two matches, binding for 'i' and 'j' respectively. 4022</pre></td></tr> 4023 4024 4025<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructorDecl.html">CXXConstructorDecl</a>></td><td class="name" onclick="toggle('hasAnyConstructorInitializer0')"><a name="hasAnyConstructorInitializer0Anchor">hasAnyConstructorInitializer</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>> InnerMatcher</td></tr> 4026<tr><td colspan="4" class="doc" id="hasAnyConstructorInitializer0"><pre>Matches a constructor initializer. 4027 4028Given 4029 struct Foo { 4030 Foo() : foo_(1) { } 4031 int foo_; 4032 }; 4033cxxRecordDecl(has(cxxConstructorDecl( 4034 hasAnyConstructorInitializer(anything()) 4035))) 4036 record matches Foo, hasAnyConstructorInitializer matches foo_(1) 4037</pre></td></tr> 4038 4039 4040<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>></td><td class="name" onclick="toggle('forField0')"><a name="forField0Anchor">forField</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FieldDecl.html">FieldDecl</a>> InnerMatcher</td></tr> 4041<tr><td colspan="4" class="doc" id="forField0"><pre>Matches the field declaration of a constructor initializer. 4042 4043Given 4044 struct Foo { 4045 Foo() : foo_(1) { } 4046 int foo_; 4047 }; 4048cxxRecordDecl(has(cxxConstructorDecl(hasAnyConstructorInitializer( 4049 forField(hasName("foo_")))))) 4050 matches Foo 4051with forField matching foo_ 4052</pre></td></tr> 4053 4054 4055<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>></td><td class="name" onclick="toggle('withInitializer0')"><a name="withInitializer0Anchor">withInitializer</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4056<tr><td colspan="4" class="doc" id="withInitializer0"><pre>Matches the initializer expression of a constructor initializer. 4057 4058Given 4059 struct Foo { 4060 Foo() : foo_(1) { } 4061 int foo_; 4062 }; 4063cxxRecordDecl(has(cxxConstructorDecl(hasAnyConstructorInitializer( 4064 withInitializer(integerLiteral(equals(1))))))) 4065 matches Foo 4066with withInitializer matching (1) 4067</pre></td></tr> 4068 4069 4070<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXForRangeStmt.html">CXXForRangeStmt</a>></td><td class="name" onclick="toggle('hasBody3')"><a name="hasBody3Anchor">hasBody</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 4071<tr><td colspan="4" class="doc" id="hasBody3"><pre>Matches a 'for', 'while', 'do while' statement or a function 4072definition that has a given body. 4073 4074Given 4075 for (;;) {} 4076hasBody(compoundStmt()) 4077 matches 'for (;;) {}' 4078with compoundStmt() 4079 matching '{}' 4080</pre></td></tr> 4081 4082 4083<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXForRangeStmt.html">CXXForRangeStmt</a>></td><td class="name" onclick="toggle('hasLoopVariable0')"><a name="hasLoopVariable0Anchor">hasLoopVariable</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>> InnerMatcher</td></tr> 4084<tr><td colspan="4" class="doc" id="hasLoopVariable0"><pre>Matches the initialization statement of a for loop. 4085 4086Example: 4087 forStmt(hasLoopVariable(anything())) 4088matches 'int x' in 4089 for (int x : a) { } 4090</pre></td></tr> 4091 4092 4093<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXForRangeStmt.html">CXXForRangeStmt</a>></td><td class="name" onclick="toggle('hasRangeInit0')"><a name="hasRangeInit0Anchor">hasRangeInit</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4094<tr><td colspan="4" class="doc" id="hasRangeInit0"><pre>Matches the range initialization statement of a for loop. 4095 4096Example: 4097 forStmt(hasRangeInit(anything())) 4098matches 'a' in 4099 for (int x : a) { } 4100</pre></td></tr> 4101 4102 4103<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMemberCallExpr.html">CXXMemberCallExpr</a>></td><td class="name" onclick="toggle('onImplicitObjectArgument0')"><a name="onImplicitObjectArgument0Anchor">onImplicitObjectArgument</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4104<tr><td colspan="4" class="doc" id="onImplicitObjectArgument0"><pre></pre></td></tr> 4105 4106 4107<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMemberCallExpr.html">CXXMemberCallExpr</a>></td><td class="name" onclick="toggle('on0')"><a name="on0Anchor">on</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4108<tr><td colspan="4" class="doc" id="on0"><pre>Matches on the implicit object argument of a member call expression. 4109 4110Example matches y.x() 4111 (matcher = cxxMemberCallExpr(on(hasType(cxxRecordDecl(hasName("Y")))))) 4112 class Y { public: void x(); }; 4113 void z() { Y y; y.x(); }", 4114 4115FIXME: Overload to allow directly matching types? 4116</pre></td></tr> 4117 4118 4119<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMemberCallExpr.html">CXXMemberCallExpr</a>></td><td class="name" onclick="toggle('thisPointerType1')"><a name="thisPointerType1Anchor">thisPointerType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4120<tr><td colspan="4" class="doc" id="thisPointerType1"><pre>Overloaded to match the type's declaration. 4121</pre></td></tr> 4122 4123 4124<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMemberCallExpr.html">CXXMemberCallExpr</a>></td><td class="name" onclick="toggle('thisPointerType0')"><a name="thisPointerType0Anchor">thisPointerType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 4125<tr><td colspan="4" class="doc" id="thisPointerType0"><pre>Matches if the expression's type either matches the specified 4126matcher, or is a pointer to a type that matches the InnerMatcher. 4127</pre></td></tr> 4128 4129 4130<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('forEachOverridden0')"><a name="forEachOverridden0Anchor">forEachOverridden</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>> InnerMatcher</td></tr> 4131<tr><td colspan="4" class="doc" id="forEachOverridden0"><pre>Matches each method overriden by the given method. This matcher may 4132produce multiple matches. 4133 4134Given 4135 class A { virtual void f(); }; 4136 class B : public A { void f(); }; 4137 class C : public B { void f(); }; 4138cxxMethodDecl(ofClass(hasName("C")), 4139 forEachOverridden(cxxMethodDecl().bind("b"))).bind("d") 4140 matches once, with "b" binding "A::f" and "d" binding "C::f" (Note 4141 that B::f is not overridden by C::f). 4142 4143The check can produce multiple matches in case of multiple inheritance, e.g. 4144 class A1 { virtual void f(); }; 4145 class A2 { virtual void f(); }; 4146 class C : public A1, public A2 { void f(); }; 4147cxxMethodDecl(ofClass(hasName("C")), 4148 forEachOverridden(cxxMethodDecl().bind("b"))).bind("d") 4149 matches twice, once with "b" binding "A1::f" and "d" binding "C::f", and 4150 once with "b" binding "A2::f" and "d" binding "C::f". 4151</pre></td></tr> 4152 4153 4154<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('ofClass0')"><a name="ofClass0Anchor">ofClass</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>> InnerMatcher</td></tr> 4155<tr><td colspan="4" class="doc" id="ofClass0"><pre>Matches the class declaration that the given method declaration 4156belongs to. 4157 4158FIXME: Generalize this for other kinds of declarations. 4159FIXME: What other kind of declarations would we need to generalize 4160this to? 4161 4162Example matches A() in the last line 4163 (matcher = cxxConstructExpr(hasDeclaration(cxxMethodDecl( 4164 ofClass(hasName("A")))))) 4165 class A { 4166 public: 4167 A(); 4168 }; 4169 A a = A(); 4170</pre></td></tr> 4171 4172 4173<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>></td><td class="name" onclick="toggle('hasMethod0')"><a name="hasMethod0Anchor">hasMethod</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>> InnerMatcher</td></tr> 4174<tr><td colspan="4" class="doc" id="hasMethod0"><pre>Matches the first method of a class or struct that satisfies InnerMatcher. 4175 4176Given: 4177 class A { void func(); }; 4178 class B { void member(); }; 4179 4180cxxRecordDecl(hasMethod(hasName("func"))) matches the declaration of 4181A but not B. 4182</pre></td></tr> 4183 4184 4185<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>></td><td class="name" onclick="toggle('isDerivedFrom0')"><a name="isDerivedFrom0Anchor">isDerivedFrom</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamedDecl.html">NamedDecl</a>> Base</td></tr> 4186<tr><td colspan="4" class="doc" id="isDerivedFrom0"><pre>Matches C++ classes that are directly or indirectly derived from 4187a class matching Base. 4188 4189Note that a class is not considered to be derived from itself. 4190 4191Example matches Y, Z, C (Base == hasName("X")) 4192 class X; 4193 class Y : public X {}; directly derived 4194 class Z : public Y {}; indirectly derived 4195 typedef X A; 4196 typedef A B; 4197 class C : public B {}; derived from a typedef of X 4198 4199In the following example, Bar matches isDerivedFrom(hasName("X")): 4200 class Foo; 4201 typedef Foo X; 4202 class Bar : public Foo {}; derived from a type that X is a typedef of 4203</pre></td></tr> 4204 4205 4206<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>></td><td class="name" onclick="toggle('isSameOrDerivedFrom0')"><a name="isSameOrDerivedFrom0Anchor">isSameOrDerivedFrom</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamedDecl.html">NamedDecl</a>> Base</td></tr> 4207<tr><td colspan="4" class="doc" id="isSameOrDerivedFrom0"><pre>Similar to isDerivedFrom(), but also matches classes that directly 4208match Base. 4209</pre></td></tr> 4210 4211 4212<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>></td><td class="name" onclick="toggle('callee1')"><a name="callee1Anchor">callee</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4213<tr><td colspan="4" class="doc" id="callee1"><pre>Matches if the call expression's callee's declaration matches the 4214given matcher. 4215 4216Example matches y.x() (matcher = callExpr(callee( 4217 cxxMethodDecl(hasName("x"))))) 4218 class Y { public: void x(); }; 4219 void z() { Y y; y.x(); } 4220</pre></td></tr> 4221 4222 4223<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>></td><td class="name" onclick="toggle('callee0')"><a name="callee0Anchor">callee</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 4224<tr><td colspan="4" class="doc" id="callee0"><pre>Matches if the call expression's callee expression matches. 4225 4226Given 4227 class Y { void x() { this->x(); x(); Y y; y.x(); } }; 4228 void f() { f(); } 4229callExpr(callee(expr())) 4230 matches this->x(), x(), y.x(), f() 4231with callee(...) 4232 matching this->x, x, y.x, f respectively 4233 4234Note: Callee cannot take the more general internal::Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> 4235because this introduces ambiguous overloads with calls to Callee taking a 4236internal::Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>, as the matcher hierarchy is purely 4237implemented in terms of implicit casts. 4238</pre></td></tr> 4239 4240 4241<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>></td><td class="name" onclick="toggle('forEachArgumentWithParam0')"><a name="forEachArgumentWithParam0Anchor">forEachArgumentWithParam</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> ArgMatcher, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ParmVarDecl.html">ParmVarDecl</a>> ParamMatcher</td></tr> 4242<tr><td colspan="4" class="doc" id="forEachArgumentWithParam0"><pre>Matches all arguments and their respective ParmVarDecl. 4243 4244Given 4245 void f(int i); 4246 int y; 4247 f(y); 4248callExpr( 4249 forEachArgumentWithParam( 4250 declRefExpr(to(varDecl(hasName("y")))), 4251 parmVarDecl(hasType(isInteger())) 4252)) 4253 matches f(y); 4254with declRefExpr(...) 4255 matching int y 4256and parmVarDecl(...) 4257 matching int i 4258</pre></td></tr> 4259 4260 4261<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>></td><td class="name" onclick="toggle('hasAnyArgument0')"><a name="hasAnyArgument0Anchor">hasAnyArgument</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4262<tr><td colspan="4" class="doc" id="hasAnyArgument0"><pre>Matches any argument of a call expression or a constructor call 4263expression. 4264 4265Given 4266 void x(int, int, int) { int y; x(1, y, 42); } 4267callExpr(hasAnyArgument(declRefExpr())) 4268 matches x(1, y, 42) 4269with hasAnyArgument(...) 4270 matching y 4271</pre></td></tr> 4272 4273 4274<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>></td><td class="name" onclick="toggle('hasArgument0')"><a name="hasArgument0Anchor">hasArgument</a></td><td>unsigned N, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4275<tr><td colspan="4" class="doc" id="hasArgument0"><pre>Matches the n'th argument of a call expression or a constructor 4276call expression. 4277 4278Example matches y in x(y) 4279 (matcher = callExpr(hasArgument(0, declRefExpr()))) 4280 void x(int) { int y; x(y); } 4281</pre></td></tr> 4282 4283 4284<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>></td><td class="name" onclick="toggle('hasDeclaration14')"><a name="hasDeclaration14Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4285<tr><td colspan="4" class="doc" id="hasDeclaration14"><pre>Matches a node if the declaration associated with that node 4286matches the given matcher. 4287 4288The associated declaration is: 4289- for type nodes, the declaration of the underlying type 4290- for CallExpr, the declaration of the callee 4291- for MemberExpr, the declaration of the referenced member 4292- for CXXConstructExpr, the declaration of the constructor 4293 4294Also usable as Matcher<T> for any T supporting the getDecl() member 4295function. e.g. various subtypes of clang::Type and various expressions. 4296 4297Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 4298 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 4299 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 4300 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 4301 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 4302 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 4303</pre></td></tr> 4304 4305 4306<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CaseStmt.html">CaseStmt</a>></td><td class="name" onclick="toggle('hasCaseConstant0')"><a name="hasCaseConstant0Anchor">hasCaseConstant</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4307<tr><td colspan="4" class="doc" id="hasCaseConstant0"><pre>If the given case statement does not use the GNU case range 4308extension, matches the constant given in the statement. 4309 4310Given 4311 switch (1) { case 1: case 1+1: case 3 ... 4: ; } 4312caseStmt(hasCaseConstant(integerLiteral())) 4313 matches "case 1:" 4314</pre></td></tr> 4315 4316 4317<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CastExpr.html">CastExpr</a>></td><td class="name" onclick="toggle('hasSourceExpression0')"><a name="hasSourceExpression0Anchor">hasSourceExpression</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4318<tr><td colspan="4" class="doc" id="hasSourceExpression0"><pre></pre></td></tr> 4319 4320 4321<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ClassTemplateSpecializationDecl.html">ClassTemplateSpecializationDecl</a>></td><td class="name" onclick="toggle('hasAnyTemplateArgument0')"><a name="hasAnyTemplateArgument0Anchor">hasAnyTemplateArgument</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>> InnerMatcher</td></tr> 4322<tr><td colspan="4" class="doc" id="hasAnyTemplateArgument0"><pre>Matches classTemplateSpecializations, templateSpecializationType and 4323functionDecl that have at least one TemplateArgument matching the given 4324InnerMatcher. 4325 4326Given 4327 template<typename T> class A {}; 4328 template<> class A<double> {}; 4329 A<int> a; 4330 4331 template<typename T> f() {}; 4332 void func() { f<int>(); }; 4333 4334classTemplateSpecializationDecl(hasAnyTemplateArgument( 4335 refersToType(asString("int")))) 4336 matches the specialization A<int> 4337 4338functionDecl(hasAnyTemplateArgument(refersToType(asString("int")))) 4339 matches the specialization f<int> 4340</pre></td></tr> 4341 4342 4343<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ClassTemplateSpecializationDecl.html">ClassTemplateSpecializationDecl</a>></td><td class="name" onclick="toggle('hasTemplateArgument0')"><a name="hasTemplateArgument0Anchor">hasTemplateArgument</a></td><td>unsigned N, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>> InnerMatcher</td></tr> 4344<tr><td colspan="4" class="doc" id="hasTemplateArgument0"><pre>Matches classTemplateSpecializations, templateSpecializationType and 4345functionDecl where the n'th TemplateArgument matches the given InnerMatcher. 4346 4347Given 4348 template<typename T, typename U> class A {}; 4349 A<bool, int> b; 4350 A<int, bool> c; 4351 4352 template<typename T> f() {}; 4353 void func() { f<int>(); }; 4354classTemplateSpecializationDecl(hasTemplateArgument( 4355 1, refersToType(asString("int")))) 4356 matches the specialization A<bool, int> 4357 4358functionDecl(hasTemplateArgument(0, refersToType(asString("int")))) 4359 matches the specialization f<int> 4360</pre></td></tr> 4361 4362 4363<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ComplexTypeLoc.html">ComplexTypeLoc</a>></td><td class="name" onclick="toggle('hasElementTypeLoc1')"><a name="hasElementTypeLoc1Anchor">hasElementTypeLoc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>></td></tr> 4364<tr><td colspan="4" class="doc" id="hasElementTypeLoc1"><pre>Matches arrays and C99 complex types that have a specific element 4365type. 4366 4367Given 4368 struct A {}; 4369 A a[7]; 4370 int b[7]; 4371arrayType(hasElementType(builtinType())) 4372 matches "int b[7]" 4373 4374Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArrayType.html">ArrayType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ComplexType.html">ComplexType</a>> 4375</pre></td></tr> 4376 4377 4378<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ComplexType.html">ComplexType</a>></td><td class="name" onclick="toggle('hasElementType1')"><a name="hasElementType1Anchor">hasElementType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td></tr> 4379<tr><td colspan="4" class="doc" id="hasElementType1"><pre>Matches arrays and C99 complex types that have a specific element 4380type. 4381 4382Given 4383 struct A {}; 4384 A a[7]; 4385 int b[7]; 4386arrayType(hasElementType(builtinType())) 4387 matches "int b[7]" 4388 4389Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ArrayType.html">ArrayType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ComplexType.html">ComplexType</a>> 4390</pre></td></tr> 4391 4392 4393<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CompoundStmt.html">CompoundStmt</a>></td><td class="name" onclick="toggle('hasAnySubstatement0')"><a name="hasAnySubstatement0Anchor">hasAnySubstatement</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 4394<tr><td colspan="4" class="doc" id="hasAnySubstatement0"><pre>Matches compound statements where at least one substatement matches 4395a given matcher. Also matches StmtExprs that have CompoundStmt as children. 4396 4397Given 4398 { {}; 1+2; } 4399hasAnySubstatement(compoundStmt()) 4400 matches '{ {}; 1+2; }' 4401with compoundStmt() 4402 matching '{}' 4403</pre></td></tr> 4404 4405 4406<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DecayedType.html">DecayedType</a>></td><td class="name" onclick="toggle('hasDecayedType0')"><a name="hasDecayedType0Anchor">hasDecayedType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerType</td></tr> 4407<tr><td colspan="4" class="doc" id="hasDecayedType0"><pre>Matches the decayed type, whos decayed type matches InnerMatcher 4408</pre></td></tr> 4409 4410 4411<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>></td><td class="name" onclick="toggle('hasDeclaration12')"><a name="hasDeclaration12Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4412<tr><td colspan="4" class="doc" id="hasDeclaration12"><pre>Matches a node if the declaration associated with that node 4413matches the given matcher. 4414 4415The associated declaration is: 4416- for type nodes, the declaration of the underlying type 4417- for CallExpr, the declaration of the callee 4418- for MemberExpr, the declaration of the referenced member 4419- for CXXConstructExpr, the declaration of the constructor 4420 4421Also usable as Matcher<T> for any T supporting the getDecl() member 4422function. e.g. various subtypes of clang::Type and various expressions. 4423 4424Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 4425 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 4426 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 4427 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 4428 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 4429 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 4430</pre></td></tr> 4431 4432 4433<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>></td><td class="name" onclick="toggle('throughUsingDecl0')"><a name="throughUsingDecl0Anchor">throughUsingDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UsingShadowDecl.html">UsingShadowDecl</a>> InnerMatcher</td></tr> 4434<tr><td colspan="4" class="doc" id="throughUsingDecl0"><pre>Matches a DeclRefExpr that refers to a declaration through a 4435specific using shadow declaration. 4436 4437Given 4438 namespace a { void f() {} } 4439 using a::f; 4440 void g() { 4441 f(); Matches this .. 4442 a::f(); .. but not this. 4443 } 4444declRefExpr(throughUsingDecl(anything())) 4445 matches f() 4446</pre></td></tr> 4447 4448 4449<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>></td><td class="name" onclick="toggle('to0')"><a name="to0Anchor">to</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4450<tr><td colspan="4" class="doc" id="to0"><pre>Matches a DeclRefExpr that refers to a declaration that matches the 4451specified matcher. 4452 4453Example matches x in if(x) 4454 (matcher = declRefExpr(to(varDecl(hasName("x"))))) 4455 bool x; 4456 if (x) {} 4457</pre></td></tr> 4458 4459 4460<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclStmt.html">DeclStmt</a>></td><td class="name" onclick="toggle('containsDeclaration0')"><a name="containsDeclaration0Anchor">containsDeclaration</a></td><td>unsigned N, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4461<tr><td colspan="4" class="doc" id="containsDeclaration0"><pre>Matches the n'th declaration of a declaration statement. 4462 4463Note that this does not work for global declarations because the AST 4464breaks up multiple-declaration DeclStmt's into multiple single-declaration 4465DeclStmt's. 4466Example: Given non-global declarations 4467 int a, b = 0; 4468 int c; 4469 int d = 2, e; 4470declStmt(containsDeclaration( 4471 0, varDecl(hasInitializer(anything())))) 4472 matches only 'int d = 2, e;', and 4473declStmt(containsDeclaration(1, varDecl())) 4474 matches 'int a, b = 0' as well as 'int d = 2, e;' 4475 but 'int c;' is not matched. 4476</pre></td></tr> 4477 4478 4479<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclStmt.html">DeclStmt</a>></td><td class="name" onclick="toggle('hasSingleDecl0')"><a name="hasSingleDecl0Anchor">hasSingleDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4480<tr><td colspan="4" class="doc" id="hasSingleDecl0"><pre>Matches the Decl of a DeclStmt which has a single declaration. 4481 4482Given 4483 int a, b; 4484 int c; 4485declStmt(hasSingleDecl(anything())) 4486 matches 'int c;' but not 'int a, b;'. 4487</pre></td></tr> 4488 4489 4490<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclaratorDecl.html">DeclaratorDecl</a>></td><td class="name" onclick="toggle('hasTypeLoc0')"><a name="hasTypeLoc0Anchor">hasTypeLoc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>> Inner</td></tr> 4491<tr><td colspan="4" class="doc" id="hasTypeLoc0"><pre>Matches if the type location of the declarator decl's type matches 4492the inner matcher. 4493 4494Given 4495 int x; 4496declaratorDecl(hasTypeLoc(loc(asString("int")))) 4497 matches int x 4498</pre></td></tr> 4499 4500 4501<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('hasDeclContext0')"><a name="hasDeclContext0Anchor">hasDeclContext</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4502<tr><td colspan="4" class="doc" id="hasDeclContext0"><pre>Matches declarations whose declaration context, interpreted as a 4503Decl, matches InnerMatcher. 4504 4505Given 4506 namespace N { 4507 namespace M { 4508 class D {}; 4509 } 4510 } 4511 4512cxxRcordDecl(hasDeclContext(namedDecl(hasName("M")))) matches the 4513declaration of class D. 4514</pre></td></tr> 4515 4516 4517<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DoStmt.html">DoStmt</a>></td><td class="name" onclick="toggle('hasBody0')"><a name="hasBody0Anchor">hasBody</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 4518<tr><td colspan="4" class="doc" id="hasBody0"><pre>Matches a 'for', 'while', 'do while' statement or a function 4519definition that has a given body. 4520 4521Given 4522 for (;;) {} 4523hasBody(compoundStmt()) 4524 matches 'for (;;) {}' 4525with compoundStmt() 4526 matching '{}' 4527</pre></td></tr> 4528 4529 4530<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DoStmt.html">DoStmt</a>></td><td class="name" onclick="toggle('hasCondition3')"><a name="hasCondition3Anchor">hasCondition</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4531<tr><td colspan="4" class="doc" id="hasCondition3"><pre>Matches the condition expression of an if statement, for loop, 4532switch statement or conditional operator. 4533 4534Example matches true (matcher = hasCondition(cxxBoolLiteral(equals(true)))) 4535 if (true) {} 4536</pre></td></tr> 4537 4538 4539<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ElaboratedType.html">ElaboratedType</a>></td><td class="name" onclick="toggle('hasQualifier0')"><a name="hasQualifier0Anchor">hasQualifier</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifier.html">NestedNameSpecifier</a>> InnerMatcher</td></tr> 4540<tr><td colspan="4" class="doc" id="hasQualifier0"><pre>Matches ElaboratedTypes whose qualifier, a NestedNameSpecifier, 4541matches InnerMatcher if the qualifier exists. 4542 4543Given 4544 namespace N { 4545 namespace M { 4546 class D {}; 4547 } 4548 } 4549 N::M::D d; 4550 4551elaboratedType(hasQualifier(hasPrefix(specifiesNamespace(hasName("N")))) 4552matches the type of the variable declaration of d. 4553</pre></td></tr> 4554 4555 4556<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ElaboratedType.html">ElaboratedType</a>></td><td class="name" onclick="toggle('namesType0')"><a name="namesType0Anchor">namesType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 4557<tr><td colspan="4" class="doc" id="namesType0"><pre>Matches ElaboratedTypes whose named type matches InnerMatcher. 4558 4559Given 4560 namespace N { 4561 namespace M { 4562 class D {}; 4563 } 4564 } 4565 N::M::D d; 4566 4567elaboratedType(namesType(recordType( 4568hasDeclaration(namedDecl(hasName("D")))))) matches the type of the variable 4569declaration of d. 4570</pre></td></tr> 4571 4572 4573<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>></td><td class="name" onclick="toggle('hasDeclaration11')"><a name="hasDeclaration11Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4574<tr><td colspan="4" class="doc" id="hasDeclaration11"><pre>Matches a node if the declaration associated with that node 4575matches the given matcher. 4576 4577The associated declaration is: 4578- for type nodes, the declaration of the underlying type 4579- for CallExpr, the declaration of the callee 4580- for MemberExpr, the declaration of the referenced member 4581- for CXXConstructExpr, the declaration of the constructor 4582 4583Also usable as Matcher<T> for any T supporting the getDecl() member 4584function. e.g. various subtypes of clang::Type and various expressions. 4585 4586Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 4587 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 4588 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 4589 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 4590 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 4591 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 4592</pre></td></tr> 4593 4594 4595<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ExplicitCastExpr.html">ExplicitCastExpr</a>></td><td class="name" onclick="toggle('hasDestinationType0')"><a name="hasDestinationType0Anchor">hasDestinationType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 4596<tr><td colspan="4" class="doc" id="hasDestinationType0"><pre>Matches casts whose destination type matches a given matcher. 4597 4598(Note: Clang's AST refers to other conversions as "casts" too, and calls 4599actual casts "explicit" casts.) 4600</pre></td></tr> 4601 4602 4603<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>></td><td class="name" onclick="toggle('hasType3')"><a name="hasType3Anchor">hasType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4604<tr><td colspan="4" class="doc" id="hasType3"><pre>Overloaded to match the declaration of the expression's or value 4605declaration's type. 4606 4607In case of a value declaration (for example a variable declaration), 4608this resolves one layer of indirection. For example, in the value 4609declaration "X x;", cxxRecordDecl(hasName("X")) matches the declaration of 4610X, while varDecl(hasType(cxxRecordDecl(hasName("X")))) matches the 4611declaration of x. 4612 4613Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X"))))) 4614 and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X"))))) 4615 class X {}; 4616 void y(X &x) { x; X z; } 4617 4618Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>> 4619</pre></td></tr> 4620 4621 4622<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>></td><td class="name" onclick="toggle('hasType0')"><a name="hasType0Anchor">hasType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 4623<tr><td colspan="4" class="doc" id="hasType0"><pre>Matches if the expression's or declaration's type matches a type 4624matcher. 4625 4626Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X"))))) 4627 and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X"))))) 4628 and U (matcher = typedefDecl(hasType(asString("int"))) 4629 class X {}; 4630 void y(X &x) { x; X z; } 4631 typedef int U; 4632</pre></td></tr> 4633 4634 4635<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>></td><td class="name" onclick="toggle('ignoringImpCasts0')"><a name="ignoringImpCasts0Anchor">ignoringImpCasts</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4636<tr><td colspan="4" class="doc" id="ignoringImpCasts0"><pre>Matches expressions that match InnerMatcher after any implicit casts 4637are stripped off. 4638 4639Parentheses and explicit casts are not discarded. 4640Given 4641 int arr[5]; 4642 int a = 0; 4643 char b = 0; 4644 const int c = a; 4645 int *d = arr; 4646 long e = (long) 0l; 4647The matchers 4648 varDecl(hasInitializer(ignoringImpCasts(integerLiteral()))) 4649 varDecl(hasInitializer(ignoringImpCasts(declRefExpr()))) 4650would match the declarations for a, b, c, and d, but not e. 4651While 4652 varDecl(hasInitializer(integerLiteral())) 4653 varDecl(hasInitializer(declRefExpr())) 4654only match the declarations for b, c, and d. 4655</pre></td></tr> 4656 4657 4658<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>></td><td class="name" onclick="toggle('ignoringImplicit0')"><a name="ignoringImplicit0Anchor">ignoringImplicit</a></td><td>ast_matchers::Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4659<tr><td colspan="4" class="doc" id="ignoringImplicit0"><pre>Matches expressions that match InnerMatcher after any implicit AST 4660nodes are stripped off. 4661 4662Parentheses and explicit casts are not discarded. 4663Given 4664 class C {}; 4665 C a = C(); 4666 C b; 4667 C c = b; 4668The matchers 4669 varDecl(hasInitializer(ignoringImplicit(cxxConstructExpr()))) 4670would match the declarations for a, b, and c. 4671While 4672 varDecl(hasInitializer(cxxConstructExpr())) 4673only match the declarations for b and c. 4674</pre></td></tr> 4675 4676 4677<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>></td><td class="name" onclick="toggle('ignoringParenCasts0')"><a name="ignoringParenCasts0Anchor">ignoringParenCasts</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4678<tr><td colspan="4" class="doc" id="ignoringParenCasts0"><pre>Matches expressions that match InnerMatcher after parentheses and 4679casts are stripped off. 4680 4681Implicit and non-C Style casts are also discarded. 4682Given 4683 int a = 0; 4684 char b = (0); 4685 void* c = reinterpret_cast<char*>(0); 4686 char d = char(0); 4687The matcher 4688 varDecl(hasInitializer(ignoringParenCasts(integerLiteral()))) 4689would match the declarations for a, b, c, and d. 4690while 4691 varDecl(hasInitializer(integerLiteral())) 4692only match the declaration for a. 4693</pre></td></tr> 4694 4695 4696<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>></td><td class="name" onclick="toggle('ignoringParenImpCasts0')"><a name="ignoringParenImpCasts0Anchor">ignoringParenImpCasts</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4697<tr><td colspan="4" class="doc" id="ignoringParenImpCasts0"><pre>Matches expressions that match InnerMatcher after implicit casts and 4698parentheses are stripped off. 4699 4700Explicit casts are not discarded. 4701Given 4702 int arr[5]; 4703 int a = 0; 4704 char b = (0); 4705 const int c = a; 4706 int *d = (arr); 4707 long e = ((long) 0l); 4708The matchers 4709 varDecl(hasInitializer(ignoringParenImpCasts(integerLiteral()))) 4710 varDecl(hasInitializer(ignoringParenImpCasts(declRefExpr()))) 4711would match the declarations for a, b, c, and d, but not e. 4712while 4713 varDecl(hasInitializer(integerLiteral())) 4714 varDecl(hasInitializer(declRefExpr())) 4715would only match the declaration for a. 4716</pre></td></tr> 4717 4718 4719<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ForStmt.html">ForStmt</a>></td><td class="name" onclick="toggle('hasBody1')"><a name="hasBody1Anchor">hasBody</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 4720<tr><td colspan="4" class="doc" id="hasBody1"><pre>Matches a 'for', 'while', 'do while' statement or a function 4721definition that has a given body. 4722 4723Given 4724 for (;;) {} 4725hasBody(compoundStmt()) 4726 matches 'for (;;) {}' 4727with compoundStmt() 4728 matching '{}' 4729</pre></td></tr> 4730 4731 4732<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ForStmt.html">ForStmt</a>></td><td class="name" onclick="toggle('hasCondition1')"><a name="hasCondition1Anchor">hasCondition</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4733<tr><td colspan="4" class="doc" id="hasCondition1"><pre>Matches the condition expression of an if statement, for loop, 4734switch statement or conditional operator. 4735 4736Example matches true (matcher = hasCondition(cxxBoolLiteral(equals(true)))) 4737 if (true) {} 4738</pre></td></tr> 4739 4740 4741<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ForStmt.html">ForStmt</a>></td><td class="name" onclick="toggle('hasIncrement0')"><a name="hasIncrement0Anchor">hasIncrement</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 4742<tr><td colspan="4" class="doc" id="hasIncrement0"><pre>Matches the increment statement of a for loop. 4743 4744Example: 4745 forStmt(hasIncrement(unaryOperator(hasOperatorName("++")))) 4746matches '++x' in 4747 for (x; x < N; ++x) { } 4748</pre></td></tr> 4749 4750 4751<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ForStmt.html">ForStmt</a>></td><td class="name" onclick="toggle('hasLoopInit0')"><a name="hasLoopInit0Anchor">hasLoopInit</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 4752<tr><td colspan="4" class="doc" id="hasLoopInit0"><pre>Matches the initialization statement of a for loop. 4753 4754Example: 4755 forStmt(hasLoopInit(declStmt())) 4756matches 'int x = 0' in 4757 for (int x = 0; x < N; ++x) { } 4758</pre></td></tr> 4759 4760 4761<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('hasAnyParameter0')"><a name="hasAnyParameter0Anchor">hasAnyParameter</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ParmVarDecl.html">ParmVarDecl</a>> InnerMatcher</td></tr> 4762<tr><td colspan="4" class="doc" id="hasAnyParameter0"><pre>Matches any parameter of a function declaration. 4763 4764Does not match the 'this' parameter of a method. 4765 4766Given 4767 class X { void f(int x, int y, int z) {} }; 4768cxxMethodDecl(hasAnyParameter(hasName("y"))) 4769 matches f(int x, int y, int z) {} 4770with hasAnyParameter(...) 4771 matching int y 4772</pre></td></tr> 4773 4774 4775<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('hasAnyTemplateArgument2')"><a name="hasAnyTemplateArgument2Anchor">hasAnyTemplateArgument</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>> InnerMatcher</td></tr> 4776<tr><td colspan="4" class="doc" id="hasAnyTemplateArgument2"><pre>Matches classTemplateSpecializations, templateSpecializationType and 4777functionDecl that have at least one TemplateArgument matching the given 4778InnerMatcher. 4779 4780Given 4781 template<typename T> class A {}; 4782 template<> class A<double> {}; 4783 A<int> a; 4784 4785 template<typename T> f() {}; 4786 void func() { f<int>(); }; 4787 4788classTemplateSpecializationDecl(hasAnyTemplateArgument( 4789 refersToType(asString("int")))) 4790 matches the specialization A<int> 4791 4792functionDecl(hasAnyTemplateArgument(refersToType(asString("int")))) 4793 matches the specialization f<int> 4794</pre></td></tr> 4795 4796 4797<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('hasBody4')"><a name="hasBody4Anchor">hasBody</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 4798<tr><td colspan="4" class="doc" id="hasBody4"><pre>Matches a 'for', 'while', 'do while' statement or a function 4799definition that has a given body. 4800 4801Given 4802 for (;;) {} 4803hasBody(compoundStmt()) 4804 matches 'for (;;) {}' 4805with compoundStmt() 4806 matching '{}' 4807</pre></td></tr> 4808 4809 4810<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('hasParameter0')"><a name="hasParameter0Anchor">hasParameter</a></td><td>unsigned N, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ParmVarDecl.html">ParmVarDecl</a>> InnerMatcher</td></tr> 4811<tr><td colspan="4" class="doc" id="hasParameter0"><pre>Matches the n'th parameter of a function declaration. 4812 4813Given 4814 class X { void f(int x) {} }; 4815cxxMethodDecl(hasParameter(0, hasType(varDecl()))) 4816 matches f(int x) {} 4817with hasParameter(...) 4818 matching int x 4819</pre></td></tr> 4820 4821 4822<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('hasTemplateArgument2')"><a name="hasTemplateArgument2Anchor">hasTemplateArgument</a></td><td>unsigned N, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>> InnerMatcher</td></tr> 4823<tr><td colspan="4" class="doc" id="hasTemplateArgument2"><pre>Matches classTemplateSpecializations, templateSpecializationType and 4824functionDecl where the n'th TemplateArgument matches the given InnerMatcher. 4825 4826Given 4827 template<typename T, typename U> class A {}; 4828 A<bool, int> b; 4829 A<int, bool> c; 4830 4831 template<typename T> f() {}; 4832 void func() { f<int>(); }; 4833classTemplateSpecializationDecl(hasTemplateArgument( 4834 1, refersToType(asString("int")))) 4835 matches the specialization A<bool, int> 4836 4837functionDecl(hasTemplateArgument(0, refersToType(asString("int")))) 4838 matches the specialization f<int> 4839</pre></td></tr> 4840 4841 4842<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>></td><td class="name" onclick="toggle('returns0')"><a name="returns0Anchor">returns</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 4843<tr><td colspan="4" class="doc" id="returns0"><pre>Matches the return type of a function declaration. 4844 4845Given: 4846 class X { int f() { return 1; } }; 4847cxxMethodDecl(returns(asString("int"))) 4848 matches int f() { return 1; } 4849</pre></td></tr> 4850 4851 4852<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IfStmt.html">IfStmt</a>></td><td class="name" onclick="toggle('hasCondition0')"><a name="hasCondition0Anchor">hasCondition</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4853<tr><td colspan="4" class="doc" id="hasCondition0"><pre>Matches the condition expression of an if statement, for loop, 4854switch statement or conditional operator. 4855 4856Example matches true (matcher = hasCondition(cxxBoolLiteral(equals(true)))) 4857 if (true) {} 4858</pre></td></tr> 4859 4860 4861<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IfStmt.html">IfStmt</a>></td><td class="name" onclick="toggle('hasConditionVariableStatement0')"><a name="hasConditionVariableStatement0Anchor">hasConditionVariableStatement</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclStmt.html">DeclStmt</a>> InnerMatcher</td></tr> 4862<tr><td colspan="4" class="doc" id="hasConditionVariableStatement0"><pre>Matches the condition variable statement in an if statement. 4863 4864Given 4865 if (A* a = GetAPointer()) {} 4866hasConditionVariableStatement(...) 4867 matches 'A* a = GetAPointer()'. 4868</pre></td></tr> 4869 4870 4871<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IfStmt.html">IfStmt</a>></td><td class="name" onclick="toggle('hasElse0')"><a name="hasElse0Anchor">hasElse</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 4872<tr><td colspan="4" class="doc" id="hasElse0"><pre>Matches the else-statement of an if statement. 4873 4874Examples matches the if statement 4875 (matcher = ifStmt(hasElse(cxxBoolLiteral(equals(true))))) 4876 if (false) false; else true; 4877</pre></td></tr> 4878 4879 4880<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1IfStmt.html">IfStmt</a>></td><td class="name" onclick="toggle('hasThen0')"><a name="hasThen0Anchor">hasThen</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 4881<tr><td colspan="4" class="doc" id="hasThen0"><pre>Matches the then-statement of an if statement. 4882 4883Examples matches the if statement 4884 (matcher = ifStmt(hasThen(cxxBoolLiteral(equals(true))))) 4885 if (false) true; else false; 4886</pre></td></tr> 4887 4888 4889<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ImplicitCastExpr.html">ImplicitCastExpr</a>></td><td class="name" onclick="toggle('hasImplicitDestinationType0')"><a name="hasImplicitDestinationType0Anchor">hasImplicitDestinationType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 4890<tr><td colspan="4" class="doc" id="hasImplicitDestinationType0"><pre>Matches implicit casts whose destination type matches a given 4891matcher. 4892 4893FIXME: Unit test this matcher 4894</pre></td></tr> 4895 4896 4897<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InitListExpr.html">InitListExpr</a>></td><td class="name" onclick="toggle('hasSyntacticForm0')"><a name="hasSyntacticForm0Anchor">hasSyntacticForm</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4898<tr><td colspan="4" class="doc" id="hasSyntacticForm0"><pre>Matches the syntactic form of init list expressions 4899(if expression have it). 4900</pre></td></tr> 4901 4902 4903<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>></td><td class="name" onclick="toggle('hasDeclaration10')"><a name="hasDeclaration10Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4904<tr><td colspan="4" class="doc" id="hasDeclaration10"><pre>Matches a node if the declaration associated with that node 4905matches the given matcher. 4906 4907The associated declaration is: 4908- for type nodes, the declaration of the underlying type 4909- for CallExpr, the declaration of the callee 4910- for MemberExpr, the declaration of the referenced member 4911- for CXXConstructExpr, the declaration of the constructor 4912 4913Also usable as Matcher<T> for any T supporting the getDecl() member 4914function. e.g. various subtypes of clang::Type and various expressions. 4915 4916Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 4917 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 4918 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 4919 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 4920 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 4921 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 4922</pre></td></tr> 4923 4924 4925<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>></td><td class="name" onclick="toggle('hasDeclaration9')"><a name="hasDeclaration9Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4926<tr><td colspan="4" class="doc" id="hasDeclaration9"><pre>Matches a node if the declaration associated with that node 4927matches the given matcher. 4928 4929The associated declaration is: 4930- for type nodes, the declaration of the underlying type 4931- for CallExpr, the declaration of the callee 4932- for MemberExpr, the declaration of the referenced member 4933- for CXXConstructExpr, the declaration of the constructor 4934 4935Also usable as Matcher<T> for any T supporting the getDecl() member 4936function. e.g. various subtypes of clang::Type and various expressions. 4937 4938Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 4939 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 4940 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 4941 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 4942 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 4943 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 4944</pre></td></tr> 4945 4946 4947<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>></td><td class="name" onclick="toggle('hasDeclaration7')"><a name="hasDeclaration7Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 4948<tr><td colspan="4" class="doc" id="hasDeclaration7"><pre>Matches a node if the declaration associated with that node 4949matches the given matcher. 4950 4951The associated declaration is: 4952- for type nodes, the declaration of the underlying type 4953- for CallExpr, the declaration of the callee 4954- for MemberExpr, the declaration of the referenced member 4955- for CXXConstructExpr, the declaration of the constructor 4956 4957Also usable as Matcher<T> for any T supporting the getDecl() member 4958function. e.g. various subtypes of clang::Type and various expressions. 4959 4960Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 4961 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 4962 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 4963 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 4964 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 4965 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 4966</pre></td></tr> 4967 4968 4969<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>></td><td class="name" onclick="toggle('hasObjectExpression0')"><a name="hasObjectExpression0Anchor">hasObjectExpression</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 4970<tr><td colspan="4" class="doc" id="hasObjectExpression0"><pre>Matches a member expression where the object expression is 4971matched by a given matcher. 4972 4973Given 4974 struct X { int m; }; 4975 void f(X x) { x.m; m; } 4976memberExpr(hasObjectExpression(hasType(cxxRecordDecl(hasName("X"))))))) 4977 matches "x.m" and "m" 4978with hasObjectExpression(...) 4979 matching "x" and the implicit object expression of "m" which has type X*. 4980</pre></td></tr> 4981 4982 4983<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>></td><td class="name" onclick="toggle('member0')"><a name="member0Anchor">member</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>> InnerMatcher</td></tr> 4984<tr><td colspan="4" class="doc" id="member0"><pre>Matches a member expression where the member is matched by a 4985given matcher. 4986 4987Given 4988 struct { int first, second; } first, second; 4989 int i(second.first); 4990 int j(first.second); 4991memberExpr(member(hasName("first"))) 4992 matches second.first 4993 but not first.second (because the member name there is "second"). 4994</pre></td></tr> 4995 4996 4997<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberPointerTypeLoc.html">MemberPointerTypeLoc</a>></td><td class="name" onclick="toggle('pointeeLoc1')"><a name="pointeeLoc1Anchor">pointeeLoc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>></td></tr> 4998<tr><td colspan="4" class="doc" id="pointeeLoc1"><pre>Narrows PointerType (and similar) matchers to those where the 4999pointee matches a given matcher. 5000 5001Given 5002 int *a; 5003 int const *b; 5004 float const *f; 5005pointerType(pointee(isConstQualified(), isInteger())) 5006 matches "int const *b" 5007 5008Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BlockPointerType.html">BlockPointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberPointerType.html">MemberPointerType</a>>, 5009 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerType.html">PointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReferenceType.html">ReferenceType</a>> 5010</pre></td></tr> 5011 5012 5013<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberPointerType.html">MemberPointerType</a>></td><td class="name" onclick="toggle('pointee1')"><a name="pointee1Anchor">pointee</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td></tr> 5014<tr><td colspan="4" class="doc" id="pointee1"><pre>Narrows PointerType (and similar) matchers to those where the 5015pointee matches a given matcher. 5016 5017Given 5018 int *a; 5019 int const *b; 5020 float const *f; 5021pointerType(pointee(isConstQualified(), isInteger())) 5022 matches "int const *b" 5023 5024Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BlockPointerType.html">BlockPointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberPointerType.html">MemberPointerType</a>>, 5025 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerType.html">PointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReferenceType.html">ReferenceType</a>> 5026</pre></td></tr> 5027 5028 5029<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamedDecl.html">NamedDecl</a>></td><td class="name" onclick="toggle('hasUnderlyingDecl0')"><a name="hasUnderlyingDecl0Anchor">hasUnderlyingDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamedDecl.html">NamedDecl</a>> InnerMatcher</td></tr> 5030<tr><td colspan="4" class="doc" id="hasUnderlyingDecl0"><pre>Matches a NamedDecl whose underlying declaration matches the given 5031matcher. 5032 5033Given 5034 namespace N { template<class T> void f(T t); } 5035 template <class T> void g() { using N::f; f(T()); } 5036unresolvedLookupExpr(hasAnyDeclaration( 5037 namedDecl(hasUnderlyingDecl(hasName("::N::f"))))) 5038 matches the use of f in g() . 5039</pre></td></tr> 5040 5041 5042<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifierLoc.html">NestedNameSpecifierLoc</a>></td><td class="name" onclick="toggle('hasPrefix1')"><a name="hasPrefix1Anchor">hasPrefix</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifierLoc.html">NestedNameSpecifierLoc</a>> InnerMatcher</td></tr> 5043<tr><td colspan="4" class="doc" id="hasPrefix1"><pre>Matches on the prefix of a NestedNameSpecifierLoc. 5044 5045Given 5046 struct A { struct B { struct C {}; }; }; 5047 A::B::C c; 5048nestedNameSpecifierLoc(hasPrefix(loc(specifiesType(asString("struct A"))))) 5049 matches "A::" 5050</pre></td></tr> 5051 5052 5053<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifierLoc.html">NestedNameSpecifierLoc</a>></td><td class="name" onclick="toggle('specifiesTypeLoc0')"><a name="specifiesTypeLoc0Anchor">specifiesTypeLoc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>> InnerMatcher</td></tr> 5054<tr><td colspan="4" class="doc" id="specifiesTypeLoc0"><pre>Matches nested name specifier locs that specify a type matching the 5055given TypeLoc. 5056 5057Given 5058 struct A { struct B { struct C {}; }; }; 5059 A::B::C c; 5060nestedNameSpecifierLoc(specifiesTypeLoc(loc(type( 5061 hasDeclaration(cxxRecordDecl(hasName("A"))))))) 5062 matches "A::" 5063</pre></td></tr> 5064 5065 5066<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifier.html">NestedNameSpecifier</a>></td><td class="name" onclick="toggle('hasPrefix0')"><a name="hasPrefix0Anchor">hasPrefix</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifier.html">NestedNameSpecifier</a>> InnerMatcher</td></tr> 5067<tr><td colspan="4" class="doc" id="hasPrefix0"><pre>Matches on the prefix of a NestedNameSpecifier. 5068 5069Given 5070 struct A { struct B { struct C {}; }; }; 5071 A::B::C c; 5072nestedNameSpecifier(hasPrefix(specifiesType(asString("struct A")))) and 5073 matches "A::" 5074</pre></td></tr> 5075 5076 5077<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifier.html">NestedNameSpecifier</a>></td><td class="name" onclick="toggle('specifiesNamespace0')"><a name="specifiesNamespace0Anchor">specifiesNamespace</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamespaceDecl.html">NamespaceDecl</a>> InnerMatcher</td></tr> 5078<tr><td colspan="4" class="doc" id="specifiesNamespace0"><pre>Matches nested name specifiers that specify a namespace matching the 5079given namespace matcher. 5080 5081Given 5082 namespace ns { struct A {}; } 5083 ns::A a; 5084nestedNameSpecifier(specifiesNamespace(hasName("ns"))) 5085 matches "ns::" 5086</pre></td></tr> 5087 5088 5089<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifier.html">NestedNameSpecifier</a>></td><td class="name" onclick="toggle('specifiesType0')"><a name="specifiesType0Anchor">specifiesType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5090<tr><td colspan="4" class="doc" id="specifiesType0"><pre>Matches nested name specifiers that specify a type matching the 5091given QualType matcher without qualifiers. 5092 5093Given 5094 struct A { struct B { struct C {}; }; }; 5095 A::B::C c; 5096nestedNameSpecifier(specifiesType( 5097 hasDeclaration(cxxRecordDecl(hasName("A"))) 5098)) 5099 matches "A::" 5100</pre></td></tr> 5101 5102 5103<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCMessageExpr.html">ObjCMessageExpr</a>></td><td class="name" onclick="toggle('hasArgument2')"><a name="hasArgument2Anchor">hasArgument</a></td><td>unsigned N, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 5104<tr><td colspan="4" class="doc" id="hasArgument2"><pre>Matches the n'th argument of a call expression or a constructor 5105call expression. 5106 5107Example matches y in x(y) 5108 (matcher = callExpr(hasArgument(0, declRefExpr()))) 5109 void x(int) { int y; x(y); } 5110</pre></td></tr> 5111 5112 5113<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCMessageExpr.html">ObjCMessageExpr</a>></td><td class="name" onclick="toggle('hasReceiverType0')"><a name="hasReceiverType0Anchor">hasReceiverType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5114<tr><td colspan="4" class="doc" id="hasReceiverType0"><pre>Matches on the receiver of an ObjectiveC Message expression. 5115 5116Example 5117matcher = objCMessageExpr(hasRecieverType(asString("UIWebView *"))); 5118matches the [webView ...] message invocation. 5119 NSString *webViewJavaScript = ... 5120 UIWebView *webView = ... 5121 [webView stringByEvaluatingJavaScriptFromString:webViewJavascript]; 5122</pre></td></tr> 5123 5124 5125<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1OpaqueValueExpr.html">OpaqueValueExpr</a>></td><td class="name" onclick="toggle('hasSourceExpression1')"><a name="hasSourceExpression1Anchor">hasSourceExpression</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 5126<tr><td colspan="4" class="doc" id="hasSourceExpression1"><pre></pre></td></tr> 5127 5128 5129<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1OverloadExpr.html">OverloadExpr</a>></td><td class="name" onclick="toggle('hasAnyDeclaration0')"><a name="hasAnyDeclaration0Anchor">hasAnyDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5130<tr><td colspan="4" class="doc" id="hasAnyDeclaration0"><pre>Matches an OverloadExpr if any of the declarations in the set of 5131overloads matches the given matcher. 5132 5133Given 5134 template <typename T> void foo(T); 5135 template <typename T> void bar(T); 5136 template <typename T> void baz(T t) { 5137 foo(t); 5138 bar(t); 5139 } 5140unresolvedLookupExpr(hasAnyDeclaration( 5141 functionTemplateDecl(hasName("foo")))) 5142 matches foo in foo(t); but not bar in bar(t); 5143</pre></td></tr> 5144 5145 5146<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ParenType.html">ParenType</a>></td><td class="name" onclick="toggle('innerType0')"><a name="innerType0Anchor">innerType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td></tr> 5147<tr><td colspan="4" class="doc" id="innerType0"><pre>Matches ParenType nodes where the inner type is a specific type. 5148 5149Given 5150 int (*ptr_to_array)[4]; 5151 int (*ptr_to_func)(int); 5152 5153varDecl(hasType(pointsTo(parenType(innerType(functionType()))))) matches 5154ptr_to_func but not ptr_to_array. 5155 5156Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ParenType.html">ParenType</a>> 5157</pre></td></tr> 5158 5159 5160<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerTypeLoc.html">PointerTypeLoc</a>></td><td class="name" onclick="toggle('pointeeLoc2')"><a name="pointeeLoc2Anchor">pointeeLoc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>></td></tr> 5161<tr><td colspan="4" class="doc" id="pointeeLoc2"><pre>Narrows PointerType (and similar) matchers to those where the 5162pointee matches a given matcher. 5163 5164Given 5165 int *a; 5166 int const *b; 5167 float const *f; 5168pointerType(pointee(isConstQualified(), isInteger())) 5169 matches "int const *b" 5170 5171Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BlockPointerType.html">BlockPointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberPointerType.html">MemberPointerType</a>>, 5172 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerType.html">PointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReferenceType.html">ReferenceType</a>> 5173</pre></td></tr> 5174 5175 5176<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerType.html">PointerType</a>></td><td class="name" onclick="toggle('pointee2')"><a name="pointee2Anchor">pointee</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td></tr> 5177<tr><td colspan="4" class="doc" id="pointee2"><pre>Narrows PointerType (and similar) matchers to those where the 5178pointee matches a given matcher. 5179 5180Given 5181 int *a; 5182 int const *b; 5183 float const *f; 5184pointerType(pointee(isConstQualified(), isInteger())) 5185 matches "int const *b" 5186 5187Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BlockPointerType.html">BlockPointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberPointerType.html">MemberPointerType</a>>, 5188 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerType.html">PointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReferenceType.html">ReferenceType</a>> 5189</pre></td></tr> 5190 5191 5192<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('hasCanonicalType0')"><a name="hasCanonicalType0Anchor">hasCanonicalType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5193<tr><td colspan="4" class="doc" id="hasCanonicalType0"><pre>Matches QualTypes whose canonical type matches InnerMatcher. 5194 5195Given: 5196 typedef int &int_ref; 5197 int a; 5198 int_ref b = a; 5199 5200varDecl(hasType(qualType(referenceType()))))) will not match the 5201declaration of b but varDecl(hasType(qualType(hasCanonicalType(referenceType())))))) does. 5202</pre></td></tr> 5203 5204 5205<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('hasDeclaration6')"><a name="hasDeclaration6Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5206<tr><td colspan="4" class="doc" id="hasDeclaration6"><pre>Matches a node if the declaration associated with that node 5207matches the given matcher. 5208 5209The associated declaration is: 5210- for type nodes, the declaration of the underlying type 5211- for CallExpr, the declaration of the callee 5212- for MemberExpr, the declaration of the referenced member 5213- for CXXConstructExpr, the declaration of the constructor 5214 5215Also usable as Matcher<T> for any T supporting the getDecl() member 5216function. e.g. various subtypes of clang::Type and various expressions. 5217 5218Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 5219 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 5220 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 5221 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 5222 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 5223 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 5224</pre></td></tr> 5225 5226 5227<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('ignoringParens0')"><a name="ignoringParens0Anchor">ignoringParens</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5228<tr><td colspan="4" class="doc" id="ignoringParens0"><pre>Matches types that match InnerMatcher after any parens are stripped. 5229 5230Given 5231 void (*fp)(void); 5232The matcher 5233 varDecl(hasType(pointerType(pointee(ignoringParens(functionType()))))) 5234would match the declaration for fp. 5235</pre></td></tr> 5236 5237 5238<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('pointsTo1')"><a name="pointsTo1Anchor">pointsTo</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5239<tr><td colspan="4" class="doc" id="pointsTo1"><pre>Overloaded to match the pointee type's declaration. 5240</pre></td></tr> 5241 5242 5243<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('pointsTo0')"><a name="pointsTo0Anchor">pointsTo</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5244<tr><td colspan="4" class="doc" id="pointsTo0"><pre>Matches if the matched type is a pointer type and the pointee type 5245matches the specified matcher. 5246 5247Example matches y->x() 5248 (matcher = cxxMemberCallExpr(on(hasType(pointsTo 5249 cxxRecordDecl(hasName("Y"))))))) 5250 class Y { public: void x(); }; 5251 void z() { Y *y; y->x(); } 5252</pre></td></tr> 5253 5254 5255<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('references1')"><a name="references1Anchor">references</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5256<tr><td colspan="4" class="doc" id="references1"><pre>Overloaded to match the referenced type's declaration. 5257</pre></td></tr> 5258 5259 5260<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('references0')"><a name="references0Anchor">references</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5261<tr><td colspan="4" class="doc" id="references0"><pre>Matches if the matched type is a reference type and the referenced 5262type matches the specified matcher. 5263 5264Example matches X &x and const X &y 5265 (matcher = varDecl(hasType(references(cxxRecordDecl(hasName("X")))))) 5266 class X { 5267 void a(X b) { 5268 X &x = b; 5269 const X &y = b; 5270 } 5271 }; 5272</pre></td></tr> 5273 5274 5275<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>></td><td class="name" onclick="toggle('hasDeclaration5')"><a name="hasDeclaration5Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5276<tr><td colspan="4" class="doc" id="hasDeclaration5"><pre>Matches a node if the declaration associated with that node 5277matches the given matcher. 5278 5279The associated declaration is: 5280- for type nodes, the declaration of the underlying type 5281- for CallExpr, the declaration of the callee 5282- for MemberExpr, the declaration of the referenced member 5283- for CXXConstructExpr, the declaration of the constructor 5284 5285Also usable as Matcher<T> for any T supporting the getDecl() member 5286function. e.g. various subtypes of clang::Type and various expressions. 5287 5288Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 5289 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 5290 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 5291 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 5292 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 5293 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 5294</pre></td></tr> 5295 5296 5297<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReferenceTypeLoc.html">ReferenceTypeLoc</a>></td><td class="name" onclick="toggle('pointeeLoc3')"><a name="pointeeLoc3Anchor">pointeeLoc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>></td></tr> 5298<tr><td colspan="4" class="doc" id="pointeeLoc3"><pre>Narrows PointerType (and similar) matchers to those where the 5299pointee matches a given matcher. 5300 5301Given 5302 int *a; 5303 int const *b; 5304 float const *f; 5305pointerType(pointee(isConstQualified(), isInteger())) 5306 matches "int const *b" 5307 5308Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BlockPointerType.html">BlockPointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberPointerType.html">MemberPointerType</a>>, 5309 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerType.html">PointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReferenceType.html">ReferenceType</a>> 5310</pre></td></tr> 5311 5312 5313<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReferenceType.html">ReferenceType</a>></td><td class="name" onclick="toggle('pointee3')"><a name="pointee3Anchor">pointee</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Type.html">Type</a>></td></tr> 5314<tr><td colspan="4" class="doc" id="pointee3"><pre>Narrows PointerType (and similar) matchers to those where the 5315pointee matches a given matcher. 5316 5317Given 5318 int *a; 5319 int const *b; 5320 float const *f; 5321pointerType(pointee(isConstQualified(), isInteger())) 5322 matches "int const *b" 5323 5324Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1BlockPointerType.html">BlockPointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberPointerType.html">MemberPointerType</a>>, 5325 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1PointerType.html">PointerType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReferenceType.html">ReferenceType</a>> 5326</pre></td></tr> 5327 5328 5329<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ReturnStmt.html">ReturnStmt</a>></td><td class="name" onclick="toggle('hasReturnValue0')"><a name="hasReturnValue0Anchor">hasReturnValue</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 5330<tr><td colspan="4" class="doc" id="hasReturnValue0"><pre>Matches the return value expression of a return statement 5331 5332Given 5333 return a + b; 5334hasReturnValue(binaryOperator()) 5335 matches 'return a + b' 5336with binaryOperator() 5337 matching 'a + b' 5338</pre></td></tr> 5339 5340 5341<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1StmtExpr.html">StmtExpr</a>></td><td class="name" onclick="toggle('hasAnySubstatement1')"><a name="hasAnySubstatement1Anchor">hasAnySubstatement</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 5342<tr><td colspan="4" class="doc" id="hasAnySubstatement1"><pre>Matches compound statements where at least one substatement matches 5343a given matcher. Also matches StmtExprs that have CompoundStmt as children. 5344 5345Given 5346 { {}; 1+2; } 5347hasAnySubstatement(compoundStmt()) 5348 matches '{ {}; 1+2; }' 5349with compoundStmt() 5350 matching '{}' 5351</pre></td></tr> 5352 5353 5354<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('alignOfExpr0')"><a name="alignOfExpr0Anchor">alignOfExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnaryExprOrTypeTraitExpr.html">UnaryExprOrTypeTraitExpr</a>> InnerMatcher</td></tr> 5355<tr><td colspan="4" class="doc" id="alignOfExpr0"><pre>Same as unaryExprOrTypeTraitExpr, but only matching 5356alignof. 5357</pre></td></tr> 5358 5359 5360<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('forFunction0')"><a name="forFunction0Anchor">forFunction</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>> InnerMatcher</td></tr> 5361<tr><td colspan="4" class="doc" id="forFunction0"><pre>Matches declaration of the function the statemenet belongs to 5362 5363Given: 5364F& operator=(const F& o) { 5365 std::copy_if(o.begin(), o.end(), begin(), [](V v) { return v > 0; }); 5366 return *this; 5367} 5368returnStmt(forFunction(hasName("operator="))) 5369 matches 'return *this' 5370 but does match 'return > 0' 5371</pre></td></tr> 5372 5373 5374<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('sizeOfExpr0')"><a name="sizeOfExpr0Anchor">sizeOfExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnaryExprOrTypeTraitExpr.html">UnaryExprOrTypeTraitExpr</a>> InnerMatcher</td></tr> 5375<tr><td colspan="4" class="doc" id="sizeOfExpr0"><pre>Same as unaryExprOrTypeTraitExpr, but only matching 5376sizeof. 5377</pre></td></tr> 5378 5379 5380<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1SwitchStmt.html">SwitchStmt</a>></td><td class="name" onclick="toggle('forEachSwitchCase0')"><a name="forEachSwitchCase0Anchor">forEachSwitchCase</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1SwitchCase.html">SwitchCase</a>> InnerMatcher</td></tr> 5381<tr><td colspan="4" class="doc" id="forEachSwitchCase0"><pre>Matches each case or default statement belonging to the given switch 5382statement. This matcher may produce multiple matches. 5383 5384Given 5385 switch (1) { case 1: case 2: default: switch (2) { case 3: case 4: ; } } 5386switchStmt(forEachSwitchCase(caseStmt().bind("c"))).bind("s") 5387 matches four times, with "c" binding each of "case 1:", "case 2:", 5388"case 3:" and "case 4:", and "s" respectively binding "switch (1)", 5389"switch (1)", "switch (2)" and "switch (2)". 5390</pre></td></tr> 5391 5392 5393<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1SwitchStmt.html">SwitchStmt</a>></td><td class="name" onclick="toggle('hasCondition4')"><a name="hasCondition4Anchor">hasCondition</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 5394<tr><td colspan="4" class="doc" id="hasCondition4"><pre>Matches the condition expression of an if statement, for loop, 5395switch statement or conditional operator. 5396 5397Example matches true (matcher = hasCondition(cxxBoolLiteral(equals(true)))) 5398 if (true) {} 5399</pre></td></tr> 5400 5401 5402<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>></td><td class="name" onclick="toggle('hasDeclaration4')"><a name="hasDeclaration4Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5403<tr><td colspan="4" class="doc" id="hasDeclaration4"><pre>Matches a node if the declaration associated with that node 5404matches the given matcher. 5405 5406The associated declaration is: 5407- for type nodes, the declaration of the underlying type 5408- for CallExpr, the declaration of the callee 5409- for MemberExpr, the declaration of the referenced member 5410- for CXXConstructExpr, the declaration of the constructor 5411 5412Also usable as Matcher<T> for any T supporting the getDecl() member 5413function. e.g. various subtypes of clang::Type and various expressions. 5414 5415Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 5416 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 5417 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 5418 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 5419 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 5420 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 5421</pre></td></tr> 5422 5423 5424<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>></td><td class="name" onclick="toggle('isExpr0')"><a name="isExpr0Anchor">isExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 5425<tr><td colspan="4" class="doc" id="isExpr0"><pre>Matches a sugar TemplateArgument that refers to a certain expression. 5426 5427Given 5428 template<typename T> struct A {}; 5429 struct B { B* next; }; 5430 A<&B::next> a; 5431templateSpecializationType(hasAnyTemplateArgument( 5432 isExpr(hasDescendant(declRefExpr(to(fieldDecl(hasName("next")))))))) 5433 matches the specialization A<&B::next> with fieldDecl(...) matching 5434 B::next 5435</pre></td></tr> 5436 5437 5438<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>></td><td class="name" onclick="toggle('refersToDeclaration0')"><a name="refersToDeclaration0Anchor">refersToDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5439<tr><td colspan="4" class="doc" id="refersToDeclaration0"><pre>Matches a canonical TemplateArgument that refers to a certain 5440declaration. 5441 5442Given 5443 template<typename T> struct A {}; 5444 struct B { B* next; }; 5445 A<&B::next> a; 5446classTemplateSpecializationDecl(hasAnyTemplateArgument( 5447 refersToDeclaration(fieldDecl(hasName("next")))) 5448 matches the specialization A<&B::next> with fieldDecl(...) matching 5449 B::next 5450</pre></td></tr> 5451 5452 5453<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>></td><td class="name" onclick="toggle('refersToIntegralType0')"><a name="refersToIntegralType0Anchor">refersToIntegralType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5454<tr><td colspan="4" class="doc" id="refersToIntegralType0"><pre>Matches a TemplateArgument that referes to an integral type. 5455 5456Given 5457 template<int T> struct A {}; 5458 C<42> c; 5459classTemplateSpecializationDecl( 5460 hasAnyTemplateArgument(refersToIntegralType(asString("int")))) 5461 matches the implicit instantiation of C in C<42>. 5462</pre></td></tr> 5463 5464 5465<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>></td><td class="name" onclick="toggle('refersToTemplate0')"><a name="refersToTemplate0Anchor">refersToTemplate</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateName.html">TemplateName</a>> InnerMatcher</td></tr> 5466<tr><td colspan="4" class="doc" id="refersToTemplate0"><pre>Matches a TemplateArgument that refers to a certain template. 5467 5468Given 5469 template<template <typename> class S> class X {}; 5470 template<typename T> class Y {};" 5471 X<Y> xi; 5472classTemplateSpecializationDecl(hasAnyTemplateArgument( 5473 refersToTemplate(templateName()))) 5474 matches the specialization X<Y> 5475</pre></td></tr> 5476 5477 5478<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>></td><td class="name" onclick="toggle('refersToType0')"><a name="refersToType0Anchor">refersToType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5479<tr><td colspan="4" class="doc" id="refersToType0"><pre>Matches a TemplateArgument that refers to a certain type. 5480 5481Given 5482 struct X {}; 5483 template<typename T> struct A {}; 5484 A<X> a; 5485classTemplateSpecializationDecl(hasAnyTemplateArgument( 5486 refersToType(class(hasName("X"))))) 5487 matches the specialization A<X> 5488</pre></td></tr> 5489 5490 5491<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>></td><td class="name" onclick="toggle('hasAnyTemplateArgument1')"><a name="hasAnyTemplateArgument1Anchor">hasAnyTemplateArgument</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>> InnerMatcher</td></tr> 5492<tr><td colspan="4" class="doc" id="hasAnyTemplateArgument1"><pre>Matches classTemplateSpecializations, templateSpecializationType and 5493functionDecl that have at least one TemplateArgument matching the given 5494InnerMatcher. 5495 5496Given 5497 template<typename T> class A {}; 5498 template<> class A<double> {}; 5499 A<int> a; 5500 5501 template<typename T> f() {}; 5502 void func() { f<int>(); }; 5503 5504classTemplateSpecializationDecl(hasAnyTemplateArgument( 5505 refersToType(asString("int")))) 5506 matches the specialization A<int> 5507 5508functionDecl(hasAnyTemplateArgument(refersToType(asString("int")))) 5509 matches the specialization f<int> 5510</pre></td></tr> 5511 5512 5513<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>></td><td class="name" onclick="toggle('hasDeclaration3')"><a name="hasDeclaration3Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5514<tr><td colspan="4" class="doc" id="hasDeclaration3"><pre>Matches a node if the declaration associated with that node 5515matches the given matcher. 5516 5517The associated declaration is: 5518- for type nodes, the declaration of the underlying type 5519- for CallExpr, the declaration of the callee 5520- for MemberExpr, the declaration of the referenced member 5521- for CXXConstructExpr, the declaration of the constructor 5522 5523Also usable as Matcher<T> for any T supporting the getDecl() member 5524function. e.g. various subtypes of clang::Type and various expressions. 5525 5526Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 5527 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 5528 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 5529 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 5530 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 5531 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 5532</pre></td></tr> 5533 5534 5535<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>></td><td class="name" onclick="toggle('hasTemplateArgument1')"><a name="hasTemplateArgument1Anchor">hasTemplateArgument</a></td><td>unsigned N, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateArgument.html">TemplateArgument</a>> InnerMatcher</td></tr> 5536<tr><td colspan="4" class="doc" id="hasTemplateArgument1"><pre>Matches classTemplateSpecializations, templateSpecializationType and 5537functionDecl where the n'th TemplateArgument matches the given InnerMatcher. 5538 5539Given 5540 template<typename T, typename U> class A {}; 5541 A<bool, int> b; 5542 A<int, bool> c; 5543 5544 template<typename T> f() {}; 5545 void func() { f<int>(); }; 5546classTemplateSpecializationDecl(hasTemplateArgument( 5547 1, refersToType(asString("int")))) 5548 matches the specialization A<bool, int> 5549 5550functionDecl(hasTemplateArgument(0, refersToType(asString("int")))) 5551 matches the specialization f<int> 5552</pre></td></tr> 5553 5554 5555<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>></td><td class="name" onclick="toggle('hasDeclaration2')"><a name="hasDeclaration2Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5556<tr><td colspan="4" class="doc" id="hasDeclaration2"><pre>Matches a node if the declaration associated with that node 5557matches the given matcher. 5558 5559The associated declaration is: 5560- for type nodes, the declaration of the underlying type 5561- for CallExpr, the declaration of the callee 5562- for MemberExpr, the declaration of the referenced member 5563- for CXXConstructExpr, the declaration of the constructor 5564 5565Also usable as Matcher<T> for any T supporting the getDecl() member 5566function. e.g. various subtypes of clang::Type and various expressions. 5567 5568Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 5569 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 5570 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 5571 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 5572 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 5573 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 5574</pre></td></tr> 5575 5576 5577<tr><td>Matcher<T></td><td class="name" onclick="toggle('findAll0')"><a name="findAll0Anchor">findAll</a></td><td>Matcher<T> Matcher</td></tr> 5578<tr><td colspan="4" class="doc" id="findAll0"><pre>Matches if the node or any descendant matches. 5579 5580Generates results for each match. 5581 5582For example, in: 5583 class A { class B {}; class C {}; }; 5584The matcher: 5585 cxxRecordDecl(hasName("::A"), 5586 findAll(cxxRecordDecl(isDefinition()).bind("m"))) 5587will generate results for A, B and C. 5588 5589Usable as: Any Matcher 5590</pre></td></tr> 5591 5592 5593<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefNameDecl.html">TypedefNameDecl</a>></td><td class="name" onclick="toggle('hasType1')"><a name="hasType1Anchor">hasType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5594<tr><td colspan="4" class="doc" id="hasType1"><pre>Matches if the expression's or declaration's type matches a type 5595matcher. 5596 5597Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X"))))) 5598 and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X"))))) 5599 and U (matcher = typedefDecl(hasType(asString("int"))) 5600 class X {}; 5601 void y(X &x) { x; X z; } 5602 typedef int U; 5603</pre></td></tr> 5604 5605 5606<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>></td><td class="name" onclick="toggle('hasDeclaration1')"><a name="hasDeclaration1Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5607<tr><td colspan="4" class="doc" id="hasDeclaration1"><pre>Matches a node if the declaration associated with that node 5608matches the given matcher. 5609 5610The associated declaration is: 5611- for type nodes, the declaration of the underlying type 5612- for CallExpr, the declaration of the callee 5613- for MemberExpr, the declaration of the referenced member 5614- for CXXConstructExpr, the declaration of the constructor 5615 5616Also usable as Matcher<T> for any T supporting the getDecl() member 5617function. e.g. various subtypes of clang::Type and various expressions. 5618 5619Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 5620 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 5621 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 5622 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 5623 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 5624 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 5625</pre></td></tr> 5626 5627 5628<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnaryExprOrTypeTraitExpr.html">UnaryExprOrTypeTraitExpr</a>></td><td class="name" onclick="toggle('hasArgumentOfType0')"><a name="hasArgumentOfType0Anchor">hasArgumentOfType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5629<tr><td colspan="4" class="doc" id="hasArgumentOfType0"><pre>Matches unary expressions that have a specific type of argument. 5630 5631Given 5632 int a, c; float b; int s = sizeof(a) + sizeof(b) + alignof(c); 5633unaryExprOrTypeTraitExpr(hasArgumentOfType(asString("int")) 5634 matches sizeof(a) and alignof(c) 5635</pre></td></tr> 5636 5637 5638<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnaryOperator.html">UnaryOperator</a>></td><td class="name" onclick="toggle('hasUnaryOperand0')"><a name="hasUnaryOperand0Anchor">hasUnaryOperand</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 5639<tr><td colspan="4" class="doc" id="hasUnaryOperand0"><pre>Matches if the operand of a unary operator matches. 5640 5641Example matches true (matcher = hasUnaryOperand( 5642 cxxBoolLiteral(equals(true)))) 5643 !true 5644</pre></td></tr> 5645 5646 5647<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>></td><td class="name" onclick="toggle('hasDeclaration0')"><a name="hasDeclaration0Anchor">hasDeclaration</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5648<tr><td colspan="4" class="doc" id="hasDeclaration0"><pre>Matches a node if the declaration associated with that node 5649matches the given matcher. 5650 5651The associated declaration is: 5652- for type nodes, the declaration of the underlying type 5653- for CallExpr, the declaration of the callee 5654- for MemberExpr, the declaration of the referenced member 5655- for CXXConstructExpr, the declaration of the constructor 5656 5657Also usable as Matcher<T> for any T supporting the getDecl() member 5658function. e.g. various subtypes of clang::Type and various expressions. 5659 5660Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>, 5661 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1DeclRefExpr.html">DeclRefExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1EnumType.html">EnumType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1InjectedClassNameType.html">InjectedClassNameType</a>>, 5662 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1LabelStmt.html">LabelStmt</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1MemberExpr.html">MemberExpr</a>>, 5663 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1RecordType.html">RecordType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TagType.html">TagType</a>>, 5664 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateSpecializationType.html">TemplateSpecializationType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmType.html">TemplateTypeParmType</a>>, 5665 Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefType.html">TypedefType</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingType.html">UnresolvedUsingType</a>> 5666</pre></td></tr> 5667 5668 5669<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UsingDecl.html">UsingDecl</a>></td><td class="name" onclick="toggle('hasAnyUsingShadowDecl0')"><a name="hasAnyUsingShadowDecl0Anchor">hasAnyUsingShadowDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UsingShadowDecl.html">UsingShadowDecl</a>> InnerMatcher</td></tr> 5670<tr><td colspan="4" class="doc" id="hasAnyUsingShadowDecl0"><pre>Matches any using shadow declaration. 5671 5672Given 5673 namespace X { void b(); } 5674 using X::b; 5675usingDecl(hasAnyUsingShadowDecl(hasName("b")))) 5676 matches using X::b </pre></td></tr> 5677 5678 5679<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1UsingShadowDecl.html">UsingShadowDecl</a>></td><td class="name" onclick="toggle('hasTargetDecl0')"><a name="hasTargetDecl0Anchor">hasTargetDecl</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NamedDecl.html">NamedDecl</a>> InnerMatcher</td></tr> 5680<tr><td colspan="4" class="doc" id="hasTargetDecl0"><pre>Matches a using shadow declaration where the target declaration is 5681matched by the given matcher. 5682 5683Given 5684 namespace X { int a; void b(); } 5685 using X::a; 5686 using X::b; 5687usingDecl(hasAnyUsingShadowDecl(hasTargetDecl(functionDecl()))) 5688 matches using X::b but not using X::a </pre></td></tr> 5689 5690 5691<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>></td><td class="name" onclick="toggle('hasType4')"><a name="hasType4Anchor">hasType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>> InnerMatcher</td></tr> 5692<tr><td colspan="4" class="doc" id="hasType4"><pre>Overloaded to match the declaration of the expression's or value 5693declaration's type. 5694 5695In case of a value declaration (for example a variable declaration), 5696this resolves one layer of indirection. For example, in the value 5697declaration "X x;", cxxRecordDecl(hasName("X")) matches the declaration of 5698X, while varDecl(hasType(cxxRecordDecl(hasName("X")))) matches the 5699declaration of x. 5700 5701Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X"))))) 5702 and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X"))))) 5703 class X {}; 5704 void y(X &x) { x; X z; } 5705 5706Usable as: Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>>, Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>> 5707</pre></td></tr> 5708 5709 5710<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>></td><td class="name" onclick="toggle('hasType2')"><a name="hasType2Anchor">hasType</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5711<tr><td colspan="4" class="doc" id="hasType2"><pre>Matches if the expression's or declaration's type matches a type 5712matcher. 5713 5714Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X"))))) 5715 and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X"))))) 5716 and U (matcher = typedefDecl(hasType(asString("int"))) 5717 class X {}; 5718 void y(X &x) { x; X z; } 5719 typedef int U; 5720</pre></td></tr> 5721 5722 5723<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>></td><td class="name" onclick="toggle('hasInitializer0')"><a name="hasInitializer0Anchor">hasInitializer</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 5724<tr><td colspan="4" class="doc" id="hasInitializer0"><pre>Matches a variable declaration that has an initializer expression 5725that matches the given matcher. 5726 5727Example matches x (matcher = varDecl(hasInitializer(callExpr()))) 5728 bool y() { return true; } 5729 bool x = y(); 5730</pre></td></tr> 5731 5732 5733<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1VariableArrayType.html">VariableArrayType</a>></td><td class="name" onclick="toggle('hasSizeExpr0')"><a name="hasSizeExpr0Anchor">hasSizeExpr</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 5734<tr><td colspan="4" class="doc" id="hasSizeExpr0"><pre>Matches VariableArrayType nodes that have a specific size 5735expression. 5736 5737Given 5738 void f(int b) { 5739 int a[b]; 5740 } 5741variableArrayType(hasSizeExpr(ignoringImpCasts(declRefExpr(to( 5742 varDecl(hasName("b"))))))) 5743 matches "int a[b]" 5744</pre></td></tr> 5745 5746 5747<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1WhileStmt.html">WhileStmt</a>></td><td class="name" onclick="toggle('hasBody2')"><a name="hasBody2Anchor">hasBody</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>> InnerMatcher</td></tr> 5748<tr><td colspan="4" class="doc" id="hasBody2"><pre>Matches a 'for', 'while', 'do while' statement or a function 5749definition that has a given body. 5750 5751Given 5752 for (;;) {} 5753hasBody(compoundStmt()) 5754 matches 'for (;;) {}' 5755with compoundStmt() 5756 matching '{}' 5757</pre></td></tr> 5758 5759 5760<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1WhileStmt.html">WhileStmt</a>></td><td class="name" onclick="toggle('hasCondition2')"><a name="hasCondition2Anchor">hasCondition</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr> 5761<tr><td colspan="4" class="doc" id="hasCondition2"><pre>Matches the condition expression of an if statement, for loop, 5762switch statement or conditional operator. 5763 5764Example matches true (matcher = hasCondition(cxxBoolLiteral(equals(true)))) 5765 if (true) {} 5766</pre></td></tr> 5767 5768 5769<tr><td>Matcher<internal::BindableMatcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifierLoc.html">NestedNameSpecifierLoc</a>>></td><td class="name" onclick="toggle('loc1')"><a name="loc1Anchor">loc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifier.html">NestedNameSpecifier</a>> InnerMatcher</td></tr> 5770<tr><td colspan="4" class="doc" id="loc1"><pre>Matches NestedNameSpecifierLocs for which the given inner 5771NestedNameSpecifier-matcher matches. 5772</pre></td></tr> 5773 5774 5775<tr><td>Matcher<internal::BindableMatcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1TypeLoc.html">TypeLoc</a>>></td><td class="name" onclick="toggle('loc0')"><a name="loc0Anchor">loc</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>> InnerMatcher</td></tr> 5776<tr><td colspan="4" class="doc" id="loc0"><pre>Matches TypeLocs for which the given inner 5777QualType-matcher matches. 5778</pre></td></tr> 5779 5780<!--END_TRAVERSAL_MATCHERS --> 5781</table> 5782 5783</div> 5784</body> 5785</html> 5786 5787 5788