2012-12-04 17:45:34 +08:00
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//===- unittests/Lex/LexerTest.cpp ------ Lexer tests ---------------------===//
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2012-01-19 23:59:01 +08:00
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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2012-12-04 17:45:34 +08:00
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#include "clang/Lex/Lexer.h"
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2012-01-19 23:59:01 +08:00
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#include "clang/Basic/Diagnostic.h"
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2012-10-24 06:38:58 +08:00
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#include "clang/Basic/DiagnosticOptions.h"
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2012-12-04 17:45:34 +08:00
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#include "clang/Basic/FileManager.h"
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2012-01-19 23:59:01 +08:00
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#include "clang/Basic/LangOptions.h"
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2012-12-04 17:53:37 +08:00
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#include "clang/Basic/SourceManager.h"
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2012-01-19 23:59:01 +08:00
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#include "clang/Basic/TargetInfo.h"
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2012-12-04 17:45:34 +08:00
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#include "clang/Basic/TargetOptions.h"
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2012-01-19 23:59:01 +08:00
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#include "clang/Lex/HeaderSearch.h"
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2012-10-25 00:24:38 +08:00
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#include "clang/Lex/HeaderSearchOptions.h"
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2012-12-04 17:45:34 +08:00
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#include "clang/Lex/ModuleLoader.h"
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2012-01-19 23:59:01 +08:00
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#include "clang/Lex/Preprocessor.h"
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2012-10-25 01:46:57 +08:00
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#include "clang/Lex/PreprocessorOptions.h"
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2012-01-19 23:59:01 +08:00
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#include "llvm/Config/config.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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using namespace clang;
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namespace {
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2013-05-17 05:37:39 +08:00
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class VoidModuleLoader : public ModuleLoader {
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virtual ModuleLoadResult loadModule(SourceLocation ImportLoc,
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ModuleIdPath Path,
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Module::NameVisibilityKind Visibility,
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bool IsInclusionDirective) {
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return ModuleLoadResult();
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}
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virtual void makeModuleVisible(Module *Mod,
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Module::NameVisibilityKind Visibility,
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SourceLocation ImportLoc,
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bool Complain) { }
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};
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2012-01-19 23:59:01 +08:00
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// The test fixture.
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class LexerTest : public ::testing::Test {
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protected:
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LexerTest()
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: FileMgr(FileMgrOpts),
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DiagID(new DiagnosticIDs()),
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2012-10-24 06:31:51 +08:00
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Diags(DiagID, new DiagnosticOptions, new IgnoringDiagConsumer()),
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2012-10-17 08:11:35 +08:00
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SourceMgr(Diags, FileMgr),
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TargetOpts(new TargetOptions)
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{
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TargetOpts->Triple = "x86_64-apple-darwin11.1.0";
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2012-11-16 12:40:11 +08:00
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Target = TargetInfo::CreateTargetInfo(Diags, &*TargetOpts);
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2012-01-19 23:59:01 +08:00
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}
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2013-05-17 05:37:39 +08:00
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std::vector<Token> CheckLex(StringRef Source,
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ArrayRef<tok::TokenKind> ExpectedTokens) {
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MemoryBuffer *buf = MemoryBuffer::getMemBuffer(Source);
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(void) SourceMgr.createMainFileIDForMemBuffer(buf);
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VoidModuleLoader ModLoader;
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HeaderSearch HeaderInfo(new HeaderSearchOptions, FileMgr, Diags, LangOpts,
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Target.getPtr());
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Preprocessor PP(new PreprocessorOptions(), Diags, LangOpts, Target.getPtr(),
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SourceMgr, HeaderInfo, ModLoader, /*IILookup =*/ 0,
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/*OwnsHeaderSearch =*/ false,
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/*DelayInitialization =*/ false);
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PP.EnterMainSourceFile();
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std::vector<Token> toks;
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while (1) {
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Token tok;
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PP.Lex(tok);
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if (tok.is(tok::eof))
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break;
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toks.push_back(tok);
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}
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EXPECT_EQ(ExpectedTokens.size(), toks.size());
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for (unsigned i = 0, e = ExpectedTokens.size(); i != e; ++i) {
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EXPECT_EQ(ExpectedTokens[i], toks[i].getKind());
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}
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return toks;
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}
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std::string getSourceText(Token Begin, Token End) {
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bool Invalid;
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StringRef Str =
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Lexer::getSourceText(CharSourceRange::getTokenRange(SourceRange(
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Begin.getLocation(), End.getLocation())),
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SourceMgr, LangOpts, &Invalid);
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if (Invalid)
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return "<INVALID>";
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return Str;
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}
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2012-01-19 23:59:01 +08:00
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FileSystemOptions FileMgrOpts;
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FileManager FileMgr;
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2012-02-20 22:00:23 +08:00
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IntrusiveRefCntPtr<DiagnosticIDs> DiagID;
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2012-01-19 23:59:01 +08:00
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DiagnosticsEngine Diags;
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SourceManager SourceMgr;
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LangOptions LangOpts;
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2012-10-17 08:11:35 +08:00
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IntrusiveRefCntPtr<TargetOptions> TargetOpts;
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2012-02-20 22:00:23 +08:00
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IntrusiveRefCntPtr<TargetInfo> Target;
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2012-01-19 23:59:01 +08:00
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};
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2013-05-17 05:37:39 +08:00
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TEST_F(LexerTest, GetSourceTextExpandsToMaximumInMacroArgument) {
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::l_paren);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::r_paren);
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2013-01-12 10:16:29 +08:00
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2013-05-17 05:37:39 +08:00
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std::vector<Token> toks = CheckLex("#define M(x) x\n"
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"M(f(M(i)))",
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ExpectedTokens);
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EXPECT_EQ("M(i)", getSourceText(toks[2], toks[2]));
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}
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TEST_F(LexerTest, GetSourceTextExpandsToMaximumInMacroArgumentForEndOfMacro) {
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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std::vector<Token> toks = CheckLex("#define M(x) x\n"
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"M(M(i) c)",
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ExpectedTokens);
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EXPECT_EQ("M(i)", getSourceText(toks[0], toks[0]));
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}
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TEST_F(LexerTest, GetSourceTextExpandsInMacroArgumentForBeginOfMacro) {
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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std::vector<Token> toks = CheckLex("#define M(x) x\n"
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"M(c c M(i))",
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ExpectedTokens);
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EXPECT_EQ("c M(i)", getSourceText(toks[1], toks[2]));
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}
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TEST_F(LexerTest, GetSourceTextExpandsInMacroArgumentForEndOfMacro) {
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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std::vector<Token> toks = CheckLex("#define M(x) x\n"
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"M(M(i) c c)",
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ExpectedTokens);
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EXPECT_EQ("M(i) c", getSourceText(toks[0], toks[1]));
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}
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TEST_F(LexerTest, GetSourceTextInSeparateFnMacros) {
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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std::vector<Token> toks = CheckLex("#define M(x) x\n"
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"M(c M(i)) M(M(i) c)",
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ExpectedTokens);
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EXPECT_EQ("<INVALID>", getSourceText(toks[1], toks[2]));
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}
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TEST_F(LexerTest, GetSourceTextWorksAcrossTokenPastes) {
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::l_paren);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::r_paren);
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std::vector<Token> toks = CheckLex("#define M(x) x\n"
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"#define C(x) M(x##c)\n"
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"M(f(C(i)))",
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ExpectedTokens);
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EXPECT_EQ("C(i)", getSourceText(toks[2], toks[2]));
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}
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TEST_F(LexerTest, GetSourceTextExpandsAcrossMultipleMacroCalls) {
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::l_paren);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::r_paren);
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std::vector<Token> toks = CheckLex("#define M(x) x\n"
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"f(M(M(i)))",
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ExpectedTokens);
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EXPECT_EQ("M(M(i))", getSourceText(toks[2], toks[2]));
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}
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TEST_F(LexerTest, GetSourceTextInMiddleOfMacroArgument) {
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::l_paren);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::r_paren);
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std::vector<Token> toks = CheckLex("#define M(x) x\n"
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"M(f(i))",
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ExpectedTokens);
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EXPECT_EQ("i", getSourceText(toks[2], toks[2]));
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}
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TEST_F(LexerTest, GetSourceTextExpandsAroundDifferentMacroCalls) {
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::l_paren);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::r_paren);
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std::vector<Token> toks = CheckLex("#define M(x) x\n"
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"#define C(x) x\n"
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"f(C(M(i)))",
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ExpectedTokens);
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EXPECT_EQ("C(M(i))", getSourceText(toks[2], toks[2]));
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}
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TEST_F(LexerTest, GetSourceTextOnlyExpandsIfFirstTokenInMacro) {
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::l_paren);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::r_paren);
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std::vector<Token> toks = CheckLex("#define M(x) x\n"
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"#define C(x) c x\n"
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"f(C(M(i)))",
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ExpectedTokens);
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EXPECT_EQ("M(i)", getSourceText(toks[3], toks[3]));
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}
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TEST_F(LexerTest, GetSourceTextExpandsRecursively) {
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::l_paren);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::r_paren);
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std::vector<Token> toks = CheckLex("#define M(x) x\n"
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"#define C(x) c M(x)\n"
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"C(f(M(i)))",
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ExpectedTokens);
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EXPECT_EQ("M(i)", getSourceText(toks[3], toks[3]));
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}
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2012-01-19 23:59:01 +08:00
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TEST_F(LexerTest, LexAPI) {
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2013-05-17 05:37:39 +08:00
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std::vector<tok::TokenKind> ExpectedTokens;
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ExpectedTokens.push_back(tok::l_square);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::r_square);
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ExpectedTokens.push_back(tok::l_square);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::r_square);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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ExpectedTokens.push_back(tok::identifier);
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std::vector<Token> toks = CheckLex("#define M(x) [x]\n"
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"#define N(x) x\n"
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"#define INN(x) x\n"
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"#define NOF1 INN(val)\n"
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"#define NOF2 val\n"
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"M(foo) N([bar])\n"
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"N(INN(val)) N(NOF1) N(NOF2) N(val)",
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ExpectedTokens);
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2012-01-19 23:59:01 +08:00
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SourceLocation lsqrLoc = toks[0].getLocation();
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SourceLocation idLoc = toks[1].getLocation();
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SourceLocation rsqrLoc = toks[2].getLocation();
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2012-01-19 23:59:14 +08:00
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std::pair<SourceLocation,SourceLocation>
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macroPair = SourceMgr.getExpansionRange(lsqrLoc);
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SourceRange macroRange = SourceRange(macroPair.first, macroPair.second);
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2012-01-19 23:59:08 +08:00
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SourceLocation Loc;
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EXPECT_TRUE(Lexer::isAtStartOfMacroExpansion(lsqrLoc, SourceMgr, LangOpts, &Loc));
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2012-01-19 23:59:14 +08:00
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EXPECT_EQ(Loc, macroRange.getBegin());
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2012-01-19 23:59:01 +08:00
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EXPECT_FALSE(Lexer::isAtStartOfMacroExpansion(idLoc, SourceMgr, LangOpts));
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EXPECT_FALSE(Lexer::isAtEndOfMacroExpansion(idLoc, SourceMgr, LangOpts));
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2012-01-19 23:59:08 +08:00
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EXPECT_TRUE(Lexer::isAtEndOfMacroExpansion(rsqrLoc, SourceMgr, LangOpts, &Loc));
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2012-01-19 23:59:14 +08:00
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EXPECT_EQ(Loc, macroRange.getEnd());
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2012-02-03 13:58:29 +08:00
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CharSourceRange range = Lexer::makeFileCharRange(
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CharSourceRange::getTokenRange(lsqrLoc, idLoc), SourceMgr, LangOpts);
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2012-01-19 23:59:14 +08:00
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EXPECT_TRUE(range.isInvalid());
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2012-02-03 13:58:29 +08:00
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range = Lexer::makeFileCharRange(CharSourceRange::getTokenRange(idLoc, rsqrLoc),
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2012-01-19 23:59:14 +08:00
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SourceMgr, LangOpts);
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EXPECT_TRUE(range.isInvalid());
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2012-02-03 13:58:29 +08:00
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range = Lexer::makeFileCharRange(CharSourceRange::getTokenRange(lsqrLoc, rsqrLoc),
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2012-01-19 23:59:14 +08:00
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SourceMgr, LangOpts);
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EXPECT_TRUE(!range.isTokenRange());
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EXPECT_EQ(range.getAsRange(),
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SourceRange(macroRange.getBegin(),
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macroRange.getEnd().getLocWithOffset(1)));
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2012-01-19 23:59:19 +08:00
|
|
|
|
|
|
|
StringRef text = Lexer::getSourceText(
|
2012-02-03 13:58:29 +08:00
|
|
|
CharSourceRange::getTokenRange(lsqrLoc, rsqrLoc),
|
|
|
|
SourceMgr, LangOpts);
|
2012-01-19 23:59:19 +08:00
|
|
|
EXPECT_EQ(text, "M(foo)");
|
2012-01-21 00:52:43 +08:00
|
|
|
|
|
|
|
SourceLocation macroLsqrLoc = toks[3].getLocation();
|
|
|
|
SourceLocation macroIdLoc = toks[4].getLocation();
|
|
|
|
SourceLocation macroRsqrLoc = toks[5].getLocation();
|
|
|
|
SourceLocation fileLsqrLoc = SourceMgr.getSpellingLoc(macroLsqrLoc);
|
|
|
|
SourceLocation fileIdLoc = SourceMgr.getSpellingLoc(macroIdLoc);
|
|
|
|
SourceLocation fileRsqrLoc = SourceMgr.getSpellingLoc(macroRsqrLoc);
|
|
|
|
|
2012-02-03 13:58:29 +08:00
|
|
|
range = Lexer::makeFileCharRange(
|
|
|
|
CharSourceRange::getTokenRange(macroLsqrLoc, macroIdLoc),
|
|
|
|
SourceMgr, LangOpts);
|
2012-01-21 00:52:43 +08:00
|
|
|
EXPECT_EQ(SourceRange(fileLsqrLoc, fileIdLoc.getLocWithOffset(3)),
|
|
|
|
range.getAsRange());
|
|
|
|
|
2012-02-03 13:58:29 +08:00
|
|
|
range = Lexer::makeFileCharRange(CharSourceRange::getTokenRange(macroIdLoc, macroRsqrLoc),
|
2012-01-21 00:52:43 +08:00
|
|
|
SourceMgr, LangOpts);
|
|
|
|
EXPECT_EQ(SourceRange(fileIdLoc, fileRsqrLoc.getLocWithOffset(1)),
|
|
|
|
range.getAsRange());
|
|
|
|
|
|
|
|
macroPair = SourceMgr.getExpansionRange(macroLsqrLoc);
|
2012-02-03 13:58:29 +08:00
|
|
|
range = Lexer::makeFileCharRange(
|
|
|
|
CharSourceRange::getTokenRange(macroLsqrLoc, macroRsqrLoc),
|
|
|
|
SourceMgr, LangOpts);
|
2012-01-21 00:52:43 +08:00
|
|
|
EXPECT_EQ(SourceRange(macroPair.first, macroPair.second.getLocWithOffset(1)),
|
|
|
|
range.getAsRange());
|
|
|
|
|
|
|
|
text = Lexer::getSourceText(
|
|
|
|
CharSourceRange::getTokenRange(SourceRange(macroLsqrLoc, macroIdLoc)),
|
|
|
|
SourceMgr, LangOpts);
|
|
|
|
EXPECT_EQ(text, "[bar");
|
2012-01-24 00:58:33 +08:00
|
|
|
|
|
|
|
|
|
|
|
SourceLocation idLoc1 = toks[6].getLocation();
|
|
|
|
SourceLocation idLoc2 = toks[7].getLocation();
|
|
|
|
SourceLocation idLoc3 = toks[8].getLocation();
|
|
|
|
SourceLocation idLoc4 = toks[9].getLocation();
|
|
|
|
EXPECT_EQ("INN", Lexer::getImmediateMacroName(idLoc1, SourceMgr, LangOpts));
|
|
|
|
EXPECT_EQ("INN", Lexer::getImmediateMacroName(idLoc2, SourceMgr, LangOpts));
|
|
|
|
EXPECT_EQ("NOF2", Lexer::getImmediateMacroName(idLoc3, SourceMgr, LangOpts));
|
|
|
|
EXPECT_EQ("N", Lexer::getImmediateMacroName(idLoc4, SourceMgr, LangOpts));
|
2012-01-19 23:59:01 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
} // anonymous namespace
|