CItutorial4.cpp

/***   CItutorial4.cpp   *****************************************************
 * This code is licensed under the New BSD license.
 * See LICENSE.txt for details.
 * 
 * The CI tutorials remake the original tutorials but using the
 * CompilerInstance object which has as one of its purpose to create commonly
 * used Clang types.
 *****************************************************************************/
#include <iostream>

#include "llvm/Support/Host.h"
#include "llvm/ADT/IntrusiveRefCntPtr.h"

#include "clang/Basic/DiagnosticOptions.h"
#include "clang/Frontend/TextDiagnosticPrinter.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Basic/TargetOptions.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Parse/Parser.h"
#include "clang/Parse/ParseAST.h"

/******************************************************************************
 *
 *****************************************************************************/
int main()
{
    using clang::CompilerInstance;
    using clang::TargetOptions;
    using clang::TargetInfo;
    using clang::FileEntry;
    using clang::Token;
    using clang::ASTContext;
    using clang::ASTConsumer;
    using clang::Parser;
    using clang::DiagnosticOptions;
    using clang::TextDiagnosticPrinter;

    CompilerInstance ci;
    DiagnosticOptions diagnosticOptions;
    ci.createDiagnostics();

    std::shared_ptr<clang::TargetOptions> pto = std::make_shared<clang::TargetOptions>();
    pto->Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), pto);
    ci.setTarget(pti);

    ci.createFileManager();
    ci.createSourceManager(ci.getFileManager());
    ci.createPreprocessor(clang::TU_Complete);
    ci.getPreprocessorOpts().UsePredefines = false;

    ci.setASTConsumer(llvm::make_unique<ASTConsumer>());

    ci.createASTContext();
    ci.createSema(clang::TU_Complete, NULL);

    const FileEntry *pFile = ci.getFileManager().getFile("test.c");
    ci.getSourceManager().setMainFileID( ci.getSourceManager().createFileID( pFile, clang::SourceLocation(), clang::SrcMgr::C_User));
    clang::ParseAST(ci.getSema());
    ci.getASTContext().Idents.PrintStats();

    return 0;
}