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      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 "gtest/gtest.h"
     24 
     25 using namespace llvm;
     26 using namespace clang;
     27 
     28 namespace {
     29 
     30 // The test fixture.
     31 class PPConditionalDirectiveRecordTest : public ::testing::Test {
     32 protected:
     33   PPConditionalDirectiveRecordTest()
     34     : FileMgr(FileMgrOpts),
     35       DiagID(new DiagnosticIDs()),
     36       Diags(DiagID, new DiagnosticOptions, new IgnoringDiagConsumer()),
     37       SourceMgr(Diags, FileMgr),
     38       TargetOpts(new TargetOptions)
     39   {
     40     TargetOpts->Triple = "x86_64-apple-darwin11.1.0";
     41     Target = TargetInfo::CreateTargetInfo(Diags, TargetOpts);
     42   }
     43 
     44   FileSystemOptions FileMgrOpts;
     45   FileManager FileMgr;
     46   IntrusiveRefCntPtr<DiagnosticIDs> DiagID;
     47   DiagnosticsEngine Diags;
     48   SourceManager SourceMgr;
     49   LangOptions LangOpts;
     50   std::shared_ptr<TargetOptions> TargetOpts;
     51   IntrusiveRefCntPtr<TargetInfo> Target;
     52 };
     53 
     54 class VoidModuleLoader : public ModuleLoader {
     55   ModuleLoadResult loadModule(SourceLocation ImportLoc,
     56                               ModuleIdPath Path,
     57                               Module::NameVisibilityKind Visibility,
     58                               bool IsInclusionDirective) override {
     59     return ModuleLoadResult();
     60   }
     61 
     62   void makeModuleVisible(Module *Mod,
     63                          Module::NameVisibilityKind Visibility,
     64                          SourceLocation ImportLoc,
     65                          bool Complain) override { }
     66 
     67   GlobalModuleIndex *loadGlobalModuleIndex(SourceLocation TriggerLoc) override
     68     { return nullptr; }
     69   bool lookupMissingImports(StringRef Name, SourceLocation TriggerLoc) override
     70     { return 0; };
     71 };
     72 
     73 TEST_F(PPConditionalDirectiveRecordTest, PPRecAPI) {
     74   const char *source =
     75       "0 1\n"
     76       "#if 1\n"
     77       "2\n"
     78       "#ifndef BB\n"
     79       "3 4\n"
     80       "#else\n"
     81       "#endif\n"
     82       "5\n"
     83       "#endif\n"
     84       "6\n"
     85       "#if 1\n"
     86       "7\n"
     87       "#if 1\n"
     88       "#endif\n"
     89       "8\n"
     90       "#endif\n"
     91       "9\n";
     92 
     93   std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(source);
     94   SourceMgr.setMainFileID(SourceMgr.createFileID(std::move(Buf)));
     95 
     96   VoidModuleLoader ModLoader;
     97   HeaderSearch HeaderInfo(new HeaderSearchOptions, SourceMgr, Diags, LangOpts,
     98                           Target.get());
     99   Preprocessor PP(new PreprocessorOptions(), Diags, LangOpts, SourceMgr,
    100                   HeaderInfo, ModLoader,
    101                   /*IILookup =*/nullptr,
    102                   /*OwnsHeaderSearch =*/false);
    103   PP.Initialize(*Target);
    104   PPConditionalDirectiveRecord *
    105     PPRec = new PPConditionalDirectiveRecord(SourceMgr);
    106   PP.addPPCallbacks(std::unique_ptr<PPCallbacks>(PPRec));
    107   PP.EnterMainSourceFile();
    108 
    109   std::vector<Token> toks;
    110   while (1) {
    111     Token tok;
    112     PP.Lex(tok);
    113     if (tok.is(tok::eof))
    114       break;
    115     toks.push_back(tok);
    116   }
    117 
    118   // Make sure we got the tokens that we expected.
    119   ASSERT_EQ(10U, toks.size());
    120 
    121   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
    122                     SourceRange(toks[0].getLocation(), toks[1].getLocation())));
    123   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
    124                     SourceRange(toks[0].getLocation(), toks[2].getLocation())));
    125   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
    126                     SourceRange(toks[3].getLocation(), toks[4].getLocation())));
    127   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
    128                     SourceRange(toks[1].getLocation(), toks[5].getLocation())));
    129   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
    130                     SourceRange(toks[2].getLocation(), toks[6].getLocation())));
    131   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
    132                     SourceRange(toks[2].getLocation(), toks[5].getLocation())));
    133   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
    134                     SourceRange(toks[0].getLocation(), toks[6].getLocation())));
    135   EXPECT_TRUE(PPRec->rangeIntersectsConditionalDirective(
    136                     SourceRange(toks[2].getLocation(), toks[8].getLocation())));
    137   EXPECT_FALSE(PPRec->rangeIntersectsConditionalDirective(
    138                     SourceRange(toks[0].getLocation(), toks[9].getLocation())));
    139 
    140   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
    141                     toks[0].getLocation(), toks[2].getLocation()));
    142   EXPECT_FALSE(PPRec->areInDifferentConditionalDirectiveRegion(
    143                     toks[3].getLocation(), toks[4].getLocation()));
    144   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
    145                     toks[1].getLocation(), toks[5].getLocation()));
    146   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
    147                     toks[2].getLocation(), toks[0].getLocation()));
    148   EXPECT_FALSE(PPRec->areInDifferentConditionalDirectiveRegion(
    149                     toks[4].getLocation(), toks[3].getLocation()));
    150   EXPECT_TRUE(PPRec->areInDifferentConditionalDirectiveRegion(
    151                     toks[5].getLocation(), toks[1].getLocation()));
    152 }
    153 
    154 } // anonymous namespace
    155