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   ModuleLoadResult loadModule(SourceLocation ImportLoc,
57                               ModuleIdPath Path,
58                               Module::NameVisibilityKind Visibility,
59                               bool IsInclusionDirective) override {
60     return ModuleLoadResult();
61   }
62 
63   void makeModuleVisible(Module *Mod,
64                          Module::NameVisibilityKind Visibility,
65                          SourceLocation ImportLoc,
66                          bool Complain) override { }
67 
68   GlobalModuleIndex *loadGlobalModuleIndex(SourceLocation TriggerLoc) override
69     { return 0; }
70   bool lookupMissingImports(StringRef Name, SourceLocation TriggerLoc) override
71     { return 0; };
72 };
73 
74 TEST_F(PPConditionalDirectiveRecordTest, PPRecAPI) {
75   const char *source =
76       "0 1\n"
77       "#if 1\n"
78       "2\n"
79       "#ifndef BB\n"
80       "3 4\n"
81       "#else\n"
82       "#endif\n"
83       "5\n"
84       "#endif\n"
85       "6\n"
86       "#if 1\n"
87       "7\n"
88       "#if 1\n"
89       "#endif\n"
90       "8\n"
91       "#endif\n"
92       "9\n";
93 
94   MemoryBuffer *buf = MemoryBuffer::getMemBuffer(source);
95   SourceMgr.setMainFileID(SourceMgr.createFileID(buf));
96 
97   VoidModuleLoader ModLoader;
98   HeaderSearch HeaderInfo(new HeaderSearchOptions, SourceMgr, Diags, LangOpts,
99                           Target.getPtr());
100   Preprocessor PP(new PreprocessorOptions(), Diags, LangOpts, SourceMgr,
101                   HeaderInfo, ModLoader,
102                   /*IILookup =*/0,
103                   /*OwnsHeaderSearch =*/false);
104   PP.Initialize(*Target);
105   PPConditionalDirectiveRecord *
106     PPRec = new PPConditionalDirectiveRecord(SourceMgr);
107   PP.addPPCallbacks(PPRec);
108   PP.EnterMainSourceFile();
109 
110   std::vector<Token> toks;
111   while (1) {
112     Token tok;
113     PP.Lex(tok);
114     if (tok.is(tok::eof))
115       break;
116     toks.push_back(tok);
117   }
118 
119   // Make sure we got the tokens that we expected.
120   ASSERT_EQ(10U, toks.size());
121 
122   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
123                     SourceRange(toks[0].getLocation(), toks[1].getLocation())));
124   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
125                     SourceRange(toks[0].getLocation(), toks[2].getLocation())));
126   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
127                     SourceRange(toks[3].getLocation(), toks[4].getLocation())));
128   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
129                     SourceRange(toks[1].getLocation(), toks[5].getLocation())));
130   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
131                     SourceRange(toks[2].getLocation(), toks[6].getLocation())));
132   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
133                     SourceRange(toks[2].getLocation(), toks[5].getLocation())));
134   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
135                     SourceRange(toks[0].getLocation(), toks[6].getLocation())));
136   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
137                     SourceRange(toks[2].getLocation(), toks[8].getLocation())));
138   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
139                     SourceRange(toks[0].getLocation(), toks[9].getLocation())));
140 
141   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
142                     toks[0].getLocation(), toks[2].getLocation()));
143   EXPECT_FALSE(PPRec->areInDifferentConditionalDirectiveRegion(
144                     toks[3].getLocation(), toks[4].getLocation()));
145   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
146                     toks[1].getLocation(), toks[5].getLocation()));
147   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
148                     toks[2].getLocation(), toks[0].getLocation()));
149   EXPECT_FALSE(PPRec->areInDifferentConditionalDirectiveRegion(
150                     toks[4].getLocation(), toks[3].getLocation()));
151   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
152                     toks[5].getLocation(), toks[1].getLocation()));
153 }
154 
155 } // anonymous namespace
156