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