[cfe-dev] clang api in qt5.2

[Manuel Klimek]

I'd suggest to use libtooling (http://clang.llvm.org/docs/LibTooling.html)
instead of setting up your own compiler instance.


On Sat, Feb 22, 2014 at 9:43 PM, serg3091 <serg3091 at mail.ru> wrote:

> I'm a novice developer, use clang api for astdump. I use
> clang-check --version
> LLVM (http://llvm.org/):
>   LLVM version 3.4
>
>   Optimized build.
>   Built Jul 31 2013 (18:59:40).
>   Default target: x86_64-pc-linux-gnu
>   Host CPU: core-avx-i
>
> but as I can not get through ast.
> here is my code,
>
> #include <QCoreApplication>
> #include <vector>
> #include <iostream>
> #include <QDebug>
> #include <clang/Basic/Diagnostic.h>
> #include <clang/Basic/DiagnosticOptions.h>
> #include <clang/Frontend/CompilerInstance.h>
> #include <clang/Frontend/CompilerInvocation.h>
> #include <clang/Frontend/Utils.h>
> #include <clang/Frontend/ASTUnit.h>
> #include <clang/Frontend/TextDiagnosticBuffer.h>
> #include <clang/Frontend/VerifyDiagnosticConsumer.h>
> #include <clang/Frontend/FrontendActions.h>
>
>
> using namespace clang ;
> using namespace llvm ;
>
> int main(int argc, char *argv[])
> {
>     QCoreApplication a(argc, argv);
>     DiagnosticOptions* diagOpts = new DiagnosticOptions();
>         CodeGenOptions* codeGenOpts = new CodeGenOptions();
>         CompilerInstance compiler;
>         compiler.createDiagnostics(
>             diagOpts,
>             false,
>             false,
>             codeGenOpts
>         ); // to stdout
>         assert(compiler.hasDiagnostics());
>         const char *args[] =
>         {
>             "-cc1", // вызов LLVM Clang
>             "a.cpp" // входной файл
>         };
>
>         clang::CompilerInvocation::CreateFromArgs(
>         compiler.getInvocation(),
>             args,
>             args + 2,
>             compiler.getDiagnostics());
>             assert(0 == compiler.getDiagnostics().getErrorsAsFatal());
>             FrontendAction *action = new ASTDumpAction;
>             if(compiler.ExecuteAction(action)){
>                 std::cout << "ok:";
>             }else{
>                 std::cout << "error:";
>             }
>         std::cout << "8" << std::endl;
>             assert(0 == compiler.getDiagnostics().getNumWarnings());
>             assert(actionSuccessful);
>     return a.exec();
> }
>
> please do not abuse for the code and my English
>
>
>
> --
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>
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