#ifndef SLANG_GCC_COMPILER_UTIL_H
#define SLANG_GCC_COMPILER_UTIL_H

#include "slang-downstream-compiler-util.h"

namespace Slang
{

/* Utility for processing input and output of gcc-like compilers, including clang */
struct GCCDownstreamCompilerUtil : public DownstreamCompilerUtilBase
{
        /// Extracts version number into desc from text (assumes gcc/clang -v layout with a line with version)
    static SlangResult parseVersion(const UnownedStringSlice& text, const UnownedStringSlice& prefix, DownstreamCompilerDesc& outDesc);

        /// Runs the exe, and extracts the version info into outDesc
    static SlangResult calcVersion(const ExecutableLocation& exe, DownstreamCompilerDesc& outDesc);

        /// Calculate gcc family compilers (including clang) cmdLine arguments from options
    static SlangResult calcArgs(const CompileOptions& options, CommandLine& cmdLine);

        /// Parse ExecuteResult into diagnostics 
    static SlangResult parseOutput(const ExecuteResult& exeRes, IArtifactDiagnostics* diagnostics);

        /// Given options, calculate paths to products/files produced for a compilation
    static SlangResult calcCompileProducts(const CompileOptions& options, ProductFlags flags, IOSFileArtifactRepresentation* lockFile, List<ComPtr<IArtifact>>& outArtifacts);

        /// Given the exe location, creates a DownstreamCompiler.
        /// Note! Invoke/s the compiler  to determine the compiler version number. 
    static SlangResult createCompiler(const ExecutableLocation& exe, ComPtr<IDownstreamCompiler>& outCompiler);

        /// Finds GCC compiler/s and adds them to the set
    static SlangResult locateGCCCompilers(const String& path, ISlangSharedLibraryLoader* loader, DownstreamCompilerSet* set);

        /// Finds clang compiler/s and adds them to the set
    static SlangResult locateClangCompilers(const String& path, ISlangSharedLibraryLoader* loader, DownstreamCompilerSet* set);
};

class GCCDownstreamCompiler : public CommandLineDownstreamCompiler
{
public:
    typedef CommandLineDownstreamCompiler Super;
    typedef GCCDownstreamCompilerUtil Util;

    // CommandLineCPPCompiler impl  - just forwards to the Util
    virtual SlangResult calcArgs(const CompileOptions& options, CommandLine& cmdLine) SLANG_OVERRIDE { return Util::calcArgs(options, cmdLine); }
    virtual SlangResult parseOutput(const ExecuteResult& exeResult, IArtifactDiagnostics* diagnostics) SLANG_OVERRIDE { return Util::parseOutput(exeResult, diagnostics); }
    virtual SlangResult calcCompileProducts(const CompileOptions& options, DownstreamProductFlags flags, IOSFileArtifactRepresentation* lockFile, List<ComPtr<IArtifact>>& outArtifacts) SLANG_OVERRIDE { return Util::calcCompileProducts(options, flags, lockFile, outArtifacts); }

    GCCDownstreamCompiler(const Desc& desc):Super(desc) {}
};

}

#endif