CreateInvocationFromCommandLine.cpp [plain text]
#include "clang/Frontend/Utils.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/DiagnosticOptions.h"
#include "clang/Frontend/FrontendDiagnostic.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/ArgList.h"
#include "clang/Driver/Options.h"
#include "clang/Driver/Tool.h"
#include "llvm/Support/Host.h"
using namespace clang;
CompilerInvocation *
clang::createInvocationFromCommandLine(ArrayRef<const char *> ArgList,
IntrusiveRefCntPtr<DiagnosticsEngine> Diags) {
if (!Diags.getPtr()) {
DiagnosticOptions DiagOpts;
Diags = CompilerInstance::createDiagnostics(DiagOpts, ArgList.size(),
ArgList.begin());
}
SmallVector<const char *, 16> Args;
Args.push_back("<clang>"); Args.insert(Args.end(), ArgList.begin(), ArgList.end());
Args.push_back("-fsyntax-only");
driver::Driver TheDriver("clang", llvm::sys::getDefaultTargetTriple(),
"a.out", false, *Diags);
TheDriver.setCheckInputsExist(false);
OwningPtr<driver::Compilation> C(TheDriver.BuildCompilation(Args));
if (C->getArgs().hasArg(driver::options::OPT__HASH_HASH_HASH)) {
C->PrintJob(llvm::errs(), C->getJobs(), "\n", true);
return 0;
}
const driver::JobList &Jobs = C->getJobs();
if (Jobs.size() != 1 || !isa<driver::Command>(*Jobs.begin())) {
SmallString<256> Msg;
llvm::raw_svector_ostream OS(Msg);
C->PrintJob(OS, C->getJobs(), "; ", true);
Diags->Report(diag::err_fe_expected_compiler_job) << OS.str();
return 0;
}
const driver::Command *Cmd = cast<driver::Command>(*Jobs.begin());
if (StringRef(Cmd->getCreator().getName()) != "clang") {
Diags->Report(diag::err_fe_expected_clang_command);
return 0;
}
const driver::ArgStringList &CCArgs = Cmd->getArguments();
OwningPtr<CompilerInvocation> CI(new CompilerInvocation());
if (!CompilerInvocation::CreateFromArgs(*CI,
const_cast<const char **>(CCArgs.data()),
const_cast<const char **>(CCArgs.data()) +
CCArgs.size(),
*Diags))
return 0;
return CI.take();
}