tutorial1.cpp

// This code is licensed under the New BSD license.
// See LICENSE.txt for more details.
#include <iostream>
#include <memory>

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

#include "clang/Basic/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/Basic/TargetOptions.h"
#include "clang/Basic/TargetInfo.h"

#include "clang/Lex/Preprocessor.h"
#include "clang/Frontend/CompilerInstance.h"


int main()
{
    clang::DiagnosticOptions diagnosticOptions;
    clang::TextDiagnosticPrinter *pTextDiagnosticPrinter =
        new clang::TextDiagnosticPrinter(
            llvm::outs(),
            &diagnosticOptions,
            true);
    llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs> pDiagIDs;
    //clang::DiagnosticIDs diagIDs;
    
    clang::DiagnosticsEngine *pDiagnosticsEngine =
        new clang::DiagnosticsEngine(pDiagIDs,
            &diagnosticOptions,
            pTextDiagnosticPrinter);

    clang::LangOptions languageOptions;
    clang::FileSystemOptions fileSystemOptions;
    clang::FileManager fileManager(fileSystemOptions);
    clang::SourceManager sourceManager(
        *pDiagnosticsEngine,
        fileManager);


    std::shared_ptr<clang::TargetOptions> targetOptions = std::make_shared<clang::TargetOptions>();
    //    clang::TargetOptions targetOptions;
    targetOptions->Triple = llvm::sys::getDefaultTargetTriple();

    clang::TargetInfo *pTargetInfo = 
        clang::TargetInfo::CreateTargetInfo(
            *pDiagnosticsEngine,
            targetOptions);

    llvm::IntrusiveRefCntPtr<clang::HeaderSearchOptions> hso;

    clang::HeaderSearch headerSearch(hso,
                                     sourceManager, 
                                     *pDiagnosticsEngine,
                                     languageOptions,
                                     pTargetInfo);
    clang::CompilerInstance compInst;

    llvm::IntrusiveRefCntPtr<clang::PreprocessorOptions> pOpts;

    clang::Preprocessor preprocessor(
        pOpts,
        *pDiagnosticsEngine,
        languageOptions,
	sourceManager,
        headerSearch,
	compInst
        );

    return 0;
}