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tutorial3.cpp
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tutorial3.cpp
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// This code is licensed under the New BSD license.
// See LICENSE.txt for more details.
#include <iostream>
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Host.h"
#include "clang/Frontend/DiagnosticOptions.h"
#include "clang/Frontend/TextDiagnosticPrinter.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/FileSystemOptions.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Lex/HeaderSearch.h"
#include "clang/Basic/FileManager.h"
#include "clang/Frontend/HeaderSearchOptions.h"
#include "clang/Frontend/Utils.h"
#include "clang/Basic/TargetOptions.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Frontend/PreprocessorOptions.h"
#include "clang/Frontend/FrontendOptions.h"
int main()
{
clang::DiagnosticOptions diagnosticOptions;
clang::TextDiagnosticPrinter *pTextDiagnosticPrinter =
new clang::TextDiagnosticPrinter(
llvm::outs(),
diagnosticOptions);
llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs> pDiagIDs;
clang::Diagnostic diagnostic(pDiagIDs, pTextDiagnosticPrinter);
clang::LangOptions languageOptions;
clang::FileSystemOptions fileSystemOptions;
clang::FileManager fileManager(fileSystemOptions);
clang::SourceManager sourceManager(
diagnostic,
fileManager);
clang::HeaderSearch headerSearch(fileManager);
clang::HeaderSearchOptions headerSearchOptions;
clang::TargetOptions targetOptions;
targetOptions.Triple = llvm::sys::getHostTriple();
clang::TargetInfo *pTargetInfo =
clang::TargetInfo::CreateTargetInfo(
diagnostic,
targetOptions);
clang::ApplyHeaderSearchOptions(
headerSearch,
headerSearchOptions,
languageOptions,
pTargetInfo->getTriple());
clang::Preprocessor preprocessor(
diagnostic,
languageOptions,
*pTargetInfo,
sourceManager,
headerSearch);
clang::PreprocessorOptions preprocessorOptions;
// disable predefined Macros so that you only see the tokens from your
// source file.
preprocessorOptions.UsePredefines = false;
clang::FrontendOptions frontendOptions;
clang::InitializePreprocessor(
preprocessor,
preprocessorOptions,
headerSearchOptions,
frontendOptions);
const clang::FileEntry *pFile = fileManager.getFile(
"test.c");
sourceManager.createMainFileID(pFile);
preprocessor.EnterMainSourceFile();
pTextDiagnosticPrinter->BeginSourceFile(languageOptions, &preprocessor);
clang::Token token;
do {
preprocessor.Lex(token);
if( diagnostic.hasErrorOccurred())
{
break;
}
preprocessor.DumpToken(token);
std::cerr << std::endl;
} while( token.isNot(clang::tok::eof));
pTextDiagnosticPrinter->EndSourceFile();
return 0;
}