1 //===- unittests/Lex/PPConditionalDirectiveRecordTest.cpp-PP directive tests =//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "clang/Lex/PPConditionalDirectiveRecord.h"
11 #include "clang/Basic/Diagnostic.h"
12 #include "clang/Basic/DiagnosticOptions.h"
13 #include "clang/Basic/FileManager.h"
14 #include "clang/Basic/LangOptions.h"
15 #include "clang/Basic/SourceManager.h"
16 #include "clang/Basic/TargetInfo.h"
17 #include "clang/Basic/TargetOptions.h"
18 #include "clang/Lex/HeaderSearch.h"
19 #include "clang/Lex/HeaderSearchOptions.h"
20 #include "clang/Lex/ModuleLoader.h"
21 #include "clang/Lex/Preprocessor.h"
22 #include "clang/Lex/PreprocessorOptions.h"
23 #include "llvm/Config/config.h"
24 #include "gtest/gtest.h"
25 
26 using namespace llvm;
27 using namespace clang;
28 
29 namespace {
30 
31 // The test fixture.
32 class PPConditionalDirectiveRecordTest : public ::testing::Test {
33 protected:
34   PPConditionalDirectiveRecordTest()
35     : FileMgr(FileMgrOpts),
36       DiagID(new DiagnosticIDs()),
37       Diags(DiagID, new DiagnosticOptions, new IgnoringDiagConsumer()),
38       SourceMgr(Diags, FileMgr),
39       TargetOpts(new TargetOptions)
40   {
41     TargetOpts->Triple = "x86_64-apple-darwin11.1.0";
42     Target = TargetInfo::CreateTargetInfo(Diags, &*TargetOpts);
43   }
44 
45   FileSystemOptions FileMgrOpts;
46   FileManager FileMgr;
47   IntrusiveRefCntPtr<DiagnosticIDs> DiagID;
48   DiagnosticsEngine Diags;
49   SourceManager SourceMgr;
50   LangOptions LangOpts;
51   IntrusiveRefCntPtr<TargetOptions> TargetOpts;
52   IntrusiveRefCntPtr<TargetInfo> Target;
53 };
54 
55 class VoidModuleLoader : public ModuleLoader {
56   virtual ModuleLoadResult loadModule(SourceLocation ImportLoc,
57                                       ModuleIdPath Path,
58                                       Module::NameVisibilityKind Visibility,
59                                       bool IsInclusionDirective) {
60     return ModuleLoadResult();
61   }
62 
63   virtual void makeModuleVisible(Module *Mod,
64                                  Module::NameVisibilityKind Visibility) { }
65 };
66 
67 TEST_F(PPConditionalDirectiveRecordTest, PPRecAPI) {
68   const char *source =
69       "0 1\n"
70       "#if 1\n"
71       "2\n"
72       "#ifndef BB\n"
73       "3 4\n"
74       "#else\n"
75       "#endif\n"
76       "5\n"
77       "#endif\n"
78       "6\n"
79       "#if 1\n"
80       "7\n"
81       "#if 1\n"
82       "#endif\n"
83       "8\n"
84       "#endif\n"
85       "9\n";
86 
87   MemoryBuffer *buf = MemoryBuffer::getMemBuffer(source);
88   SourceMgr.createMainFileIDForMemBuffer(buf);
89 
90   VoidModuleLoader ModLoader;
91   HeaderSearch HeaderInfo(new HeaderSearchOptions, FileMgr, Diags, LangOpts,
92                           Target.getPtr());
93   Preprocessor PP(new PreprocessorOptions(), Diags, LangOpts,Target.getPtr(),
94                   SourceMgr, HeaderInfo, ModLoader,
95                   /*IILookup =*/ 0,
96                   /*OwnsHeaderSearch =*/false,
97                   /*DelayInitialization =*/ false);
98   PPConditionalDirectiveRecord *
99     PPRec = new PPConditionalDirectiveRecord(SourceMgr);
100   PP.addPPCallbacks(PPRec);
101   PP.EnterMainSourceFile();
102 
103   std::vector<Token> toks;
104   while (1) {
105     Token tok;
106     PP.Lex(tok);
107     if (tok.is(tok::eof))
108       break;
109     toks.push_back(tok);
110   }
111 
112   // Make sure we got the tokens that we expected.
113   ASSERT_EQ(10U, toks.size());
114 
115   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
116                     SourceRange(toks[0].getLocation(), toks[1].getLocation())));
117   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
118                     SourceRange(toks[0].getLocation(), toks[2].getLocation())));
119   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
120                     SourceRange(toks[3].getLocation(), toks[4].getLocation())));
121   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
122                     SourceRange(toks[1].getLocation(), toks[5].getLocation())));
123   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
124                     SourceRange(toks[2].getLocation(), toks[6].getLocation())));
125   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
126                     SourceRange(toks[2].getLocation(), toks[5].getLocation())));
127   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
128                     SourceRange(toks[0].getLocation(), toks[6].getLocation())));
129   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
130                     SourceRange(toks[2].getLocation(), toks[8].getLocation())));
131   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
132                     SourceRange(toks[0].getLocation(), toks[9].getLocation())));
133 
134   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
135                     toks[0].getLocation(), toks[2].getLocation()));
136   EXPECT_FALSE(PPRec->areInDifferentConditionalDirectiveRegion(
137                     toks[3].getLocation(), toks[4].getLocation()));
138   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
139                     toks[1].getLocation(), toks[5].getLocation()));
140   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
141                     toks[2].getLocation(), toks[0].getLocation()));
142   EXPECT_FALSE(PPRec->areInDifferentConditionalDirectiveRegion(
143                     toks[4].getLocation(), toks[3].getLocation()));
144   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
145                     toks[5].getLocation(), toks[1].getLocation()));
146 }
147 
148 } // anonymous namespace
149