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Wire up -emit-objc-header[-path] options that don't do anything yet.

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These options piggyback on the "merge module" phase of the driver
because the header we output needs an entire complete module.

Swift SVN r13800
This commit is contained in:
Jordan Rose
2014-02-12 01:19:13 +00:00
parent 8b9dfb017a
commit 798e13d15c
9 changed files with 123 additions and 30 deletions
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80
lib/Frontend/CompilerInvocation.cpp
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@@ -378,7 +378,21 @@ static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
}
}
auto determineOutputFilename = [&] (const char *Extension) -> std::string {
auto determineOutputFilename = [&](OptSpecifier optWithoutPath,
OptSpecifier optWithPath,
const char *extension,
bool useMainOutput = false) -> std::string{
if (const Arg *A = Args.getLastArg(optWithPath)) {
Args.ClaimAllArgs(optWithoutPath);
return A->getValue();
}
if (!Args.hasArg(optWithoutPath))
return {};
if (useMainOutput && !Opts.OutputFilename.empty())
return Opts.OutputFilename;
StringRef OriginalPath;
if (!Opts.OutputFilename.empty() && Opts.OutputFilename != "-")
// Put the serialized diagnostics file next to the output file.
@@ -394,38 +408,46 @@ static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
OriginalPath = Opts.ModuleName;
llvm::SmallString<128> Path(OriginalPath);
llvm::sys::path::replace_extension(Path, Extension);
llvm::sys::path::replace_extension(Path, extension);
return Path.str();
};
if (const Arg *A = Args.getLastArg(OPT_serialize_diagnostics_path)) {
// Claim -serialize-diagnostics, if present.
Args.ClaimAllArgs(OPT_serialize_diagnostics);
Opts.SerializedDiagnosticsPath = A->getValue();
} else if (Args.hasArg(OPT_serialize_diagnostics)) {
// -serialize-diagnostics has been passed without
// -serialize-diagnostics-path, so determine a path based on other inputs.
static const char *const DiagnosticsFilePathExtension = "dia";
Opts.SerializedDiagnosticsPath =
determineOutputFilename(DiagnosticsFilePathExtension);
}
Opts.SerializedDiagnosticsPath =
determineOutputFilename(OPT_serialize_diagnostics,
OPT_serialize_diagnostics_path,
"dia");
Opts.ObjCHeaderOutputPath =
determineOutputFilename(OPT_emit_objc_header,
OPT_emit_objc_header_path,
"h");
if (const Arg *A = Args.getLastArg(OPT_emit_module_path)) {
// Claim -emit-module, if present.
Args.ClaimAllArgs(OPT_emit_module);
Opts.ModuleOutputPath = A->getValue();
} else if (Args.hasArg(OPT_emit_module)) {
// -emit-module has been passed without -emit-module-path, so determine
// a path based on other inputs.
if (Opts.RequestedAction == FrontendOptions::EmitModuleOnly &&
!Opts.OutputFilename.empty())
// We're in EmitModuleOnly mode, so use OutputFilename if we have one.
Opts.ModuleOutputPath = Opts.OutputFilename;
else
// We're either not in EmitModuleOnly mode, or we don't have an
// OutputFilename, so determine an output path based on other inputs.
Opts.ModuleOutputPath =
determineOutputFilename(SERIALIZED_MODULE_EXTENSION);
bool canUseMainOutputForModule =
Opts.RequestedAction == FrontendOptions::EmitModuleOnly;
Opts.ModuleOutputPath =
determineOutputFilename(OPT_emit_module,
OPT_emit_module_path,
SERIALIZED_MODULE_EXTENSION,
canUseMainOutputForModule);
if (!Opts.ObjCHeaderOutputPath.empty()) {
switch (Opts.RequestedAction) {
case FrontendOptions::DumpParse:
case FrontendOptions::DumpAST:
case FrontendOptions::PrintAST:
case FrontendOptions::Immediate:
case FrontendOptions::REPL:
Diags.diagnose(SourceLoc(), diag::error_mode_cannot_emit_header);
return true;
case FrontendOptions::Parse:
case FrontendOptions::EmitModuleOnly:
case FrontendOptions::EmitSILGen:
case FrontendOptions::EmitSIL:
case FrontendOptions::EmitIR:
case FrontendOptions::EmitBC:
case FrontendOptions::EmitAssembly:
case FrontendOptions::EmitObject:
break;
}
}
if (!Opts.ModuleOutputPath.empty()) {