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CompilerInvocation.cpp
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//===--- CompilerInvocation.cpp - CompilerInvocation methods --------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#include "swift/Frontend/Frontend.h"
#if __APPLE__
# include "AppleHostVersionDetection.h"
#endif
#include "swift/Strings.h"
#include "swift/AST/DiagnosticsFrontend.h"
#include "swift/Basic/Platform.h"
#include "swift/Option/Options.h"
#include "swift/Option/SanitizerOptions.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Option/Arg.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Option/Option.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/LineIterator.h"
#include "llvm/Support/Path.h"
using namespace swift;
using namespace llvm::opt;
swift::CompilerInvocation::CompilerInvocation() {
setTargetTriple(llvm::sys::getDefaultTargetTriple());
}
void CompilerInvocation::setMainExecutablePath(StringRef Path) {
llvm::SmallString<128> LibPath(Path);
llvm::sys::path::remove_filename(LibPath); // Remove /swift
llvm::sys::path::remove_filename(LibPath); // Remove /bin
llvm::sys::path::append(LibPath, "lib", "swift");
setRuntimeResourcePath(LibPath.str());
}
static void updateRuntimeLibraryPath(SearchPathOptions &SearchPathOpts,
llvm::Triple &Triple) {
llvm::SmallString<128> LibPath(SearchPathOpts.RuntimeResourcePath);
llvm::sys::path::append(LibPath, getPlatformNameForTriple(Triple));
SearchPathOpts.RuntimeLibraryPath = LibPath.str();
llvm::sys::path::append(LibPath, swift::getMajorArchitectureName(Triple));
SearchPathOpts.RuntimeLibraryImportPath = LibPath.str();
}
void CompilerInvocation::setRuntimeResourcePath(StringRef Path) {
SearchPathOpts.RuntimeResourcePath = Path;
updateRuntimeLibraryPath(SearchPathOpts, LangOpts.Target);
}
void CompilerInvocation::setTargetTriple(StringRef Triple) {
LangOpts.setTarget(llvm::Triple(Triple));
updateRuntimeLibraryPath(SearchPathOpts, LangOpts.Target);
}
SourceFileKind CompilerInvocation::getSourceFileKind() const {
switch (getInputKind()) {
case InputFileKind::IFK_Swift:
return SourceFileKind::Main;
case InputFileKind::IFK_Swift_Library:
return SourceFileKind::Library;
case InputFileKind::IFK_Swift_REPL:
return SourceFileKind::REPL;
case InputFileKind::IFK_SIL:
return SourceFileKind::SIL;
case InputFileKind::IFK_None:
case InputFileKind::IFK_LLVM_IR:
llvm_unreachable("Trying to convert from unsupported InputFileKind");
}
llvm_unreachable("Unhandled InputFileKind in switch.");
}
// This is a separate function so that it shows up in stack traces.
LLVM_ATTRIBUTE_NOINLINE
static void debugFailWithAssertion() {
// This assertion should always fail, per the user's request, and should
// not be converted to llvm_unreachable.
assert(0 && "This is an assertion!");
}
// This is a separate function so that it shows up in stack traces.
LLVM_ATTRIBUTE_NOINLINE
static void debugFailWithCrash() {
LLVM_BUILTIN_TRAP;
}
/// Try to read a file list file.
///
/// Returns false on error.
static bool readFileList(DiagnosticEngine &diags,
std::vector<std::string> &inputFiles,
const llvm::opt::Arg *filelistPath,
const llvm::opt::Arg *primaryFileArg = nullptr,
unsigned *primaryFileIndex = nullptr) {
assert((primaryFileArg == nullptr) || (primaryFileIndex != nullptr) &&
"did not provide argument for primary file index");
llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer =
llvm::MemoryBuffer::getFile(filelistPath->getValue());
if (!buffer) {
diags.diagnose(SourceLoc(), diag::cannot_open_file,
filelistPath->getValue(), buffer.getError().message());
return false;
}
bool foundPrimaryFile = false;
if (primaryFileIndex) *primaryFileIndex = 0;
for (StringRef line : make_range(llvm::line_iterator(*buffer.get()), {})) {
inputFiles.push_back(line);
if (foundPrimaryFile || primaryFileArg == nullptr)
continue;
if (line == primaryFileArg->getValue())
foundPrimaryFile = true;
else
++*primaryFileIndex;
}
if (primaryFileArg && !foundPrimaryFile) {
diags.diagnose(SourceLoc(), diag::error_primary_file_not_found,
primaryFileArg->getValue(), filelistPath->getValue());
return false;
}
return true;
}
static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags) {
using namespace options;
if (const Arg *A = Args.getLastArg(OPT_debug_crash_Group)) {
Option Opt = A->getOption();
if (Opt.matches(OPT_debug_assert_immediately)) {
debugFailWithAssertion();
} else if (Opt.matches(OPT_debug_crash_immediately)) {
debugFailWithCrash();
} else if (Opt.matches(OPT_debug_assert_after_parse)) {
// Set in FrontendOptions
Opts.CrashMode = FrontendOptions::DebugCrashMode::AssertAfterParse;
} else if (Opt.matches(OPT_debug_crash_after_parse)) {
// Set in FrontendOptions
Opts.CrashMode = FrontendOptions::DebugCrashMode::CrashAfterParse;
} else {
llvm_unreachable("Unknown debug_crash_Group option!");
}
}
if (const Arg *A = Args.getLastArg(OPT_dump_api_path)) {
Opts.DumpAPIPath = A->getValue();
}
if (const Arg *A = Args.getLastArg(OPT_group_info_path)) {
Opts.GroupInfoPath = A->getValue();
}
Opts.EmitVerboseSIL |= Args.hasArg(OPT_emit_verbose_sil);
Opts.EmitSortedSIL |= Args.hasArg(OPT_emit_sorted_sil);
Opts.DelayedFunctionBodyParsing |= Args.hasArg(OPT_delayed_function_body_parsing);
Opts.EnableTesting |= Args.hasArg(OPT_enable_testing);
Opts.EnableResilience |= Args.hasArg(OPT_enable_resilience);
Opts.PrintStats |= Args.hasArg(OPT_print_stats);
Opts.PrintClangStats |= Args.hasArg(OPT_print_clang_stats);
#if defined(NDEBUG) && !defined(LLVM_ENABLE_STATS)
if (Opts.PrintStats || Opts.PrintClangStats)
Diags.diagnose(SourceLoc(), diag::stats_disabled);
#endif
Opts.DebugTimeFunctionBodies |= Args.hasArg(OPT_debug_time_function_bodies);
Opts.DebugTimeExpressionTypeChecking |=
Args.hasArg(OPT_debug_time_expression_type_checking);
Opts.DebugTimeCompilation |= Args.hasArg(OPT_debug_time_compilation);
if (const Arg *A = Args.getLastArg(OPT_warn_long_function_bodies)) {
unsigned attempt;
if (StringRef(A->getValue()).getAsInteger(10, attempt)) {
Diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
A->getAsString(Args), A->getValue());
} else {
Opts.WarnLongFunctionBodies = attempt;
}
}
Opts.PlaygroundTransform |= Args.hasArg(OPT_playground);
if (Args.hasArg(OPT_disable_playground_transform))
Opts.PlaygroundTransform = false;
Opts.PlaygroundHighPerformance |=
Args.hasArg(OPT_playground_high_performance);
// This can be enabled independently of the playground transform.
Opts.PCMacro |= Args.hasArg(OPT_pc_macro);
if (const Arg *A = Args.getLastArg(OPT_help, OPT_help_hidden)) {
if (A->getOption().matches(OPT_help)) {
Opts.PrintHelp = true;
} else if (A->getOption().matches(OPT_help_hidden)) {
Opts.PrintHelpHidden = true;
} else {
llvm_unreachable("Unknown help option parsed");
}
}
if (const Arg *A = Args.getLastArg(OPT_filelist)) {
const Arg *primaryFileArg = Args.getLastArg(OPT_primary_file);
unsigned primaryFileIndex = 0;
if (readFileList(Diags, Opts.InputFilenames, A,
primaryFileArg, &primaryFileIndex)) {
if (primaryFileArg)
Opts.PrimaryInput = SelectedInput(primaryFileIndex);
assert(!Args.hasArg(OPT_INPUT) && "mixing -filelist with inputs");
}
} else {
for (const Arg *A : make_range(Args.filtered_begin(OPT_INPUT,
OPT_primary_file),
Args.filtered_end())) {
if (A->getOption().matches(OPT_INPUT)) {
Opts.InputFilenames.push_back(A->getValue());
} else if (A->getOption().matches(OPT_primary_file)) {
Opts.PrimaryInput = SelectedInput(Opts.InputFilenames.size());
Opts.InputFilenames.push_back(A->getValue());
} else {
llvm_unreachable("Unknown input-related argument!");
}
}
}
Opts.ParseStdlib |= Args.hasArg(OPT_parse_stdlib);
// Determine what the user has asked the frontend to do.
FrontendOptions::ActionType &Action = Opts.RequestedAction;
if (const Arg *A = Args.getLastArg(OPT_modes_Group)) {
Option Opt = A->getOption();
if (Opt.matches(OPT_emit_object)) {
Action = FrontendOptions::EmitObject;
} else if (Opt.matches(OPT_emit_assembly)) {
Action = FrontendOptions::EmitAssembly;
} else if (Opt.matches(OPT_emit_ir)) {
Action = FrontendOptions::EmitIR;
} else if (Opt.matches(OPT_emit_bc)) {
Action = FrontendOptions::EmitBC;
} else if (Opt.matches(OPT_emit_sil)) {
Action = FrontendOptions::EmitSIL;
} else if (Opt.matches(OPT_emit_silgen)) {
Action = FrontendOptions::EmitSILGen;
} else if (Opt.matches(OPT_emit_sib)) {
Action = FrontendOptions::EmitSIB;
} else if (Opt.matches(OPT_emit_sibgen)) {
Action = FrontendOptions::EmitSIBGen;
} else if (Opt.matches(OPT_emit_pch)) {
Action = FrontendOptions::EmitPCH;
} else if (Opt.matches(OPT_emit_imported_modules)) {
Action = FrontendOptions::EmitImportedModules;
} else if (Opt.matches(OPT_parse)) {
Action = FrontendOptions::Parse;
} else if (Opt.matches(OPT_typecheck)) {
Action = FrontendOptions::Typecheck;
} else if (Opt.matches(OPT_dump_parse)) {
Action = FrontendOptions::DumpParse;
} else if (Opt.matches(OPT_dump_ast)) {
Action = FrontendOptions::DumpAST;
} else if (Opt.matches(OPT_dump_scope_maps)) {
Action = FrontendOptions::DumpScopeMaps;
StringRef value = A->getValue();
if (value == "expanded") {
// Note: fully expanded the scope map.
} else {
// Parse a comma-separated list of line:column for lookups to
// perform (and dump the result of).
SmallVector<StringRef, 4> locations;
value.split(locations, ',');
bool invalid = false;
for (auto location : locations) {
auto lineColumnStr = location.split(':');
unsigned line, column;
if (lineColumnStr.first.getAsInteger(10, line) ||
lineColumnStr.second.getAsInteger(10, column)) {
Diags.diagnose(SourceLoc(), diag::error_invalid_source_location_str,
location);
invalid = true;
continue;
}
Opts.DumpScopeMapLocations.push_back({line, column});
}
if (!invalid && Opts.DumpScopeMapLocations.empty())
Diags.diagnose(SourceLoc(), diag::error_no_source_location_scope_map);
}
} else if (Opt.matches(OPT_dump_type_refinement_contexts)) {
Action = FrontendOptions::DumpTypeRefinementContexts;
} else if (Opt.matches(OPT_dump_interface_hash)) {
Action = FrontendOptions::DumpInterfaceHash;
} else if (Opt.matches(OPT_print_ast)) {
Action = FrontendOptions::PrintAST;
} else if (Opt.matches(OPT_repl) ||
Opt.matches(OPT_deprecated_integrated_repl)) {
Action = FrontendOptions::REPL;
} else if (Opt.matches(OPT_interpret)) {
Action = FrontendOptions::Immediate;
} else {
llvm_unreachable("Unhandled mode option");
}
} else {
// We don't have a mode, so determine a default.
if (Args.hasArg(OPT_emit_module, OPT_emit_module_path)) {
// We've been told to emit a module, but have no other mode indicators.
// As a result, put the frontend into EmitModuleOnly mode.
// (Setting up module output will be handled below.)
Action = FrontendOptions::EmitModuleOnly;
}
}
if (Opts.RequestedAction == FrontendOptions::Immediate &&
Opts.PrimaryInput.hasValue()) {
Diags.diagnose(SourceLoc(), diag::error_immediate_mode_primary_file);
return true;
}
bool TreatAsSIL = Args.hasArg(OPT_parse_sil);
if (!TreatAsSIL && Opts.InputFilenames.size() == 1) {
// If we have exactly one input filename, and its extension is "sil",
// treat the input as SIL.
StringRef Input(Opts.InputFilenames[0]);
TreatAsSIL = llvm::sys::path::extension(Input).endswith(SIL_EXTENSION);
} else if (!TreatAsSIL && Opts.PrimaryInput.hasValue() &&
Opts.PrimaryInput->isFilename()) {
// If we have a primary input and it's a filename with extension "sil",
// treat the input as SIL.
StringRef Input(Opts.InputFilenames[Opts.PrimaryInput->Index]);
TreatAsSIL = llvm::sys::path::extension(Input).endswith(SIL_EXTENSION);
}
// If we have exactly one input filename, and its extension is "bc" or "ll",
// treat the input as LLVM_IR.
bool TreatAsLLVM = false;
if (Opts.InputFilenames.size() == 1) {
StringRef Input(Opts.InputFilenames[0]);
TreatAsLLVM =
llvm::sys::path::extension(Input).endswith(LLVM_BC_EXTENSION) ||
llvm::sys::path::extension(Input).endswith(LLVM_IR_EXTENSION);
}
if (Opts.RequestedAction == FrontendOptions::REPL) {
if (!Opts.InputFilenames.empty()) {
Diags.diagnose(SourceLoc(), diag::error_repl_requires_no_input_files);
return true;
}
} else if (TreatAsSIL && Opts.PrimaryInput.hasValue()) {
// If we have the SIL as our primary input, we can waive the one file
// requirement as long as all the other inputs are SIBs.
if (Opts.PrimaryInput.hasValue()) {
for (unsigned i = 0, e = Opts.InputFilenames.size(); i != e; ++i) {
if (i == Opts.PrimaryInput->Index)
continue;
StringRef File(Opts.InputFilenames[i]);
if (!llvm::sys::path::extension(File).endswith(SIB_EXTENSION)) {
Diags.diagnose(SourceLoc(),
diag::error_mode_requires_one_sil_multi_sib);
return true;
}
}
}
} else if (TreatAsSIL) {
if (Opts.InputFilenames.size() != 1) {
Diags.diagnose(SourceLoc(), diag::error_mode_requires_one_input_file);
return true;
}
} else if (Opts.RequestedAction != FrontendOptions::NoneAction) {
if (Opts.InputFilenames.empty()) {
Diags.diagnose(SourceLoc(), diag::error_mode_requires_an_input_file);
return true;
}
}
if (Opts.RequestedAction == FrontendOptions::Immediate) {
assert(!Opts.InputFilenames.empty());
Opts.ImmediateArgv.push_back(Opts.InputFilenames[0]); // argv[0]
if (const Arg *A = Args.getLastArg(OPT__DASH_DASH)) {
for (unsigned i = 0, e = A->getNumValues(); i != e; ++i) {
Opts.ImmediateArgv.push_back(A->getValue(i));
}
}
}
if (TreatAsSIL)
Opts.InputKind = InputFileKind::IFK_SIL;
else if (TreatAsLLVM)
Opts.InputKind = InputFileKind::IFK_LLVM_IR;
else if (Args.hasArg(OPT_parse_as_library))
Opts.InputKind = InputFileKind::IFK_Swift_Library;
else if (Action == FrontendOptions::REPL)
Opts.InputKind = InputFileKind::IFK_Swift_REPL;
else
Opts.InputKind = InputFileKind::IFK_Swift;
if (const Arg *A = Args.getLastArg(OPT_output_filelist)) {
readFileList(Diags, Opts.OutputFilenames, A);
assert(!Args.hasArg(OPT_o) && "don't use -o with -output-filelist");
} else {
Opts.OutputFilenames = Args.getAllArgValues(OPT_o);
}
bool UserSpecifiedModuleName = false;
{
const Arg *A = Args.getLastArg(OPT_module_name);
StringRef ModuleName = Opts.ModuleName;
if (A) {
ModuleName = A->getValue();
UserSpecifiedModuleName = true;
} else if (ModuleName.empty()) {
// The user did not specify a module name, so determine a default fallback
// based on other options.
// Note: this code path will only be taken when running the frontend
// directly; the driver should always pass -module-name when invoking the
// frontend.
if (Opts.RequestedAction == FrontendOptions::REPL) {
// Default to a module named "REPL" if we're in REPL mode.
ModuleName = "REPL";
} else if (!Opts.InputFilenames.empty()) {
StringRef OutputFilename = Opts.getSingleOutputFilename();
if (OutputFilename.empty() || OutputFilename == "-" ||
llvm::sys::fs::is_directory(OutputFilename)) {
ModuleName = Opts.InputFilenames[0];
} else {
ModuleName = OutputFilename;
}
ModuleName = llvm::sys::path::stem(ModuleName);
}
}
if (!Lexer::isIdentifier(ModuleName) ||
(ModuleName == STDLIB_NAME && !Opts.ParseStdlib)) {
if (!Opts.actionHasOutput() ||
(Opts.InputKind == InputFileKind::IFK_Swift &&
Opts.InputFilenames.size() == 1)) {
ModuleName = "main";
} else {
auto DID = (ModuleName == STDLIB_NAME) ? diag::error_stdlib_module_name
: diag::error_bad_module_name;
Diags.diagnose(SourceLoc(), DID, ModuleName, A == nullptr);
ModuleName = "__bad__";
}
}
Opts.ModuleName = ModuleName;
}
if (Opts.OutputFilenames.empty() ||
llvm::sys::fs::is_directory(Opts.getSingleOutputFilename())) {
// No output filename was specified, or an output directory was specified.
// Determine the correct output filename.
// Note: this should typically only be used when invoking the frontend
// directly, as the driver will always pass -o with an appropriate filename
// if output is required for the requested action.
StringRef Suffix;
switch (Opts.RequestedAction) {
case FrontendOptions::NoneAction:
break;
case FrontendOptions::Parse:
case FrontendOptions::Typecheck:
case FrontendOptions::DumpParse:
case FrontendOptions::DumpInterfaceHash:
case FrontendOptions::DumpAST:
case FrontendOptions::PrintAST:
case FrontendOptions::DumpScopeMaps:
case FrontendOptions::DumpTypeRefinementContexts:
// Textual modes.
Opts.setSingleOutputFilename("-");
break;
case FrontendOptions::EmitPCH:
Suffix = PCH_EXTENSION;
break;
case FrontendOptions::EmitSILGen:
case FrontendOptions::EmitSIL: {
if (Opts.OutputFilenames.empty())
Opts.setSingleOutputFilename("-");
else
Suffix = SIL_EXTENSION;
break;
}
case FrontendOptions::EmitSIBGen:
case FrontendOptions::EmitSIB:
Suffix = SIB_EXTENSION;
break;
case FrontendOptions::EmitModuleOnly:
Suffix = SERIALIZED_MODULE_EXTENSION;
break;
case FrontendOptions::Immediate:
case FrontendOptions::REPL:
// These modes have no frontend-generated output.
Opts.OutputFilenames.clear();
break;
case FrontendOptions::EmitAssembly: {
if (Opts.OutputFilenames.empty())
Opts.setSingleOutputFilename("-");
else
Suffix = "s";
break;
}
case FrontendOptions::EmitIR: {
if (Opts.OutputFilenames.empty())
Opts.setSingleOutputFilename("-");
else
Suffix = "ll";
break;
}
case FrontendOptions::EmitBC: {
Suffix = "bc";
break;
}
case FrontendOptions::EmitObject:
Suffix = "o";
break;
case FrontendOptions::EmitImportedModules:
if (Opts.OutputFilenames.empty())
Opts.setSingleOutputFilename("-");
else
Suffix = "importedmodules";
break;
}
if (!Suffix.empty()) {
// We need to deduce a file name.
// First, if we're reading from stdin and we don't have a directory,
// output to stdout.
if (Opts.InputFilenames.size() == 1 && Opts.InputFilenames[0] == "-" &&
Opts.OutputFilenames.empty())
Opts.setSingleOutputFilename("-");
else {
// We have a suffix, so determine an appropriate name.
llvm::SmallString<128> Path(Opts.getSingleOutputFilename());
StringRef BaseName;
if (Opts.PrimaryInput.hasValue() && Opts.PrimaryInput->isFilename()) {
unsigned Index = Opts.PrimaryInput->Index;
BaseName = llvm::sys::path::stem(Opts.InputFilenames[Index]);
} else if (!UserSpecifiedModuleName &&
Opts.InputFilenames.size() == 1) {
BaseName = llvm::sys::path::stem(Opts.InputFilenames[0]);
} else {
BaseName = Opts.ModuleName;
}
llvm::sys::path::append(Path, BaseName);
llvm::sys::path::replace_extension(Path, Suffix);
Opts.setSingleOutputFilename(Path.str());
}
}
if (Opts.OutputFilenames.empty()) {
if (Opts.RequestedAction != FrontendOptions::REPL &&
Opts.RequestedAction != FrontendOptions::Immediate &&
Opts.RequestedAction != FrontendOptions::NoneAction) {
Diags.diagnose(SourceLoc(), diag::error_no_output_filename_specified);
return true;
}
} else if (Opts.getSingleOutputFilename() != "-" &&
llvm::sys::fs::is_directory(Opts.getSingleOutputFilename())) {
Diags.diagnose(SourceLoc(), diag::error_implicit_output_file_is_directory,
Opts.getSingleOutputFilename());
return true;
}
}
auto determineOutputFilename = [&](std::string &output,
OptSpecifier optWithoutPath,
OptSpecifier optWithPath,
const char *extension,
bool useMainOutput) {
if (const Arg *A = Args.getLastArg(optWithPath)) {
Args.ClaimAllArgs(optWithoutPath);
output = A->getValue();
return;
}
if (!Args.hasArg(optWithoutPath))
return;
if (useMainOutput && !Opts.OutputFilenames.empty()) {
output = Opts.getSingleOutputFilename();
return;
}
if (!output.empty())
return;
StringRef OriginalPath;
if (!Opts.OutputFilenames.empty() && Opts.getSingleOutputFilename() != "-")
// Put the serialized diagnostics file next to the output file.
OriginalPath = Opts.getSingleOutputFilename();
else if (Opts.PrimaryInput.hasValue() && Opts.PrimaryInput->isFilename())
// We have a primary input, so use that as the basis for the name of the
// serialized diagnostics file.
OriginalPath = llvm::sys::path::filename(
Opts.InputFilenames[Opts.PrimaryInput->Index]);
else
// We don't have any better indication of name, so fall back on the
// module name.
OriginalPath = Opts.ModuleName;
llvm::SmallString<128> Path(OriginalPath);
llvm::sys::path::replace_extension(Path, extension);
output = Path.str();
};
determineOutputFilename(Opts.DependenciesFilePath,
OPT_emit_dependencies,
OPT_emit_dependencies_path,
"d", false);
determineOutputFilename(Opts.ReferenceDependenciesFilePath,
OPT_emit_reference_dependencies,
OPT_emit_reference_dependencies_path,
"swiftdeps", false);
determineOutputFilename(Opts.SerializedDiagnosticsPath,
OPT_serialize_diagnostics,
OPT_serialize_diagnostics_path,
"dia", false);
determineOutputFilename(Opts.ObjCHeaderOutputPath,
OPT_emit_objc_header,
OPT_emit_objc_header_path,
"h", false);
if (const Arg *A = Args.getLastArg(OPT_emit_fixits_path)) {
Opts.FixitsOutputPath = A->getValue();
}
bool IsSIB =
Opts.RequestedAction == FrontendOptions::EmitSIB ||
Opts.RequestedAction == FrontendOptions::EmitSIBGen;
bool canUseMainOutputForModule =
Opts.RequestedAction == FrontendOptions::EmitModuleOnly || IsSIB;
auto ext = IsSIB ? SIB_EXTENSION : SERIALIZED_MODULE_EXTENSION;
auto sibOpt = Opts.RequestedAction == FrontendOptions::EmitSIB ?
OPT_emit_sib : OPT_emit_sibgen;
determineOutputFilename(Opts.ModuleOutputPath,
IsSIB ? sibOpt : OPT_emit_module,
OPT_emit_module_path,
ext,
canUseMainOutputForModule);
determineOutputFilename(Opts.ModuleDocOutputPath,
OPT_emit_module_doc,
OPT_emit_module_doc_path,
SERIALIZED_MODULE_DOC_EXTENSION,
false);
if (!Opts.DependenciesFilePath.empty()) {
switch (Opts.RequestedAction) {
case FrontendOptions::NoneAction:
case FrontendOptions::DumpParse:
case FrontendOptions::DumpInterfaceHash:
case FrontendOptions::DumpAST:
case FrontendOptions::PrintAST:
case FrontendOptions::DumpScopeMaps:
case FrontendOptions::DumpTypeRefinementContexts:
case FrontendOptions::Immediate:
case FrontendOptions::REPL:
Diags.diagnose(SourceLoc(), diag::error_mode_cannot_emit_dependencies);
return true;
case FrontendOptions::Parse:
case FrontendOptions::Typecheck:
case FrontendOptions::EmitModuleOnly:
case FrontendOptions::EmitPCH:
case FrontendOptions::EmitSILGen:
case FrontendOptions::EmitSIL:
case FrontendOptions::EmitSIBGen:
case FrontendOptions::EmitSIB:
case FrontendOptions::EmitIR:
case FrontendOptions::EmitBC:
case FrontendOptions::EmitAssembly:
case FrontendOptions::EmitObject:
case FrontendOptions::EmitImportedModules:
break;
}
}
if (!Opts.ObjCHeaderOutputPath.empty()) {
switch (Opts.RequestedAction) {
case FrontendOptions::NoneAction:
case FrontendOptions::DumpParse:
case FrontendOptions::DumpInterfaceHash:
case FrontendOptions::DumpAST:
case FrontendOptions::PrintAST:
case FrontendOptions::EmitPCH:
case FrontendOptions::DumpScopeMaps:
case FrontendOptions::DumpTypeRefinementContexts:
case FrontendOptions::Immediate:
case FrontendOptions::REPL:
Diags.diagnose(SourceLoc(), diag::error_mode_cannot_emit_header);
return true;
case FrontendOptions::Parse:
case FrontendOptions::Typecheck:
case FrontendOptions::EmitModuleOnly:
case FrontendOptions::EmitSILGen:
case FrontendOptions::EmitSIL:
case FrontendOptions::EmitSIBGen:
case FrontendOptions::EmitSIB:
case FrontendOptions::EmitIR:
case FrontendOptions::EmitBC:
case FrontendOptions::EmitAssembly:
case FrontendOptions::EmitObject:
case FrontendOptions::EmitImportedModules:
break;
}
}
if (!Opts.ModuleOutputPath.empty() ||
!Opts.ModuleDocOutputPath.empty()) {
switch (Opts.RequestedAction) {
case FrontendOptions::NoneAction:
case FrontendOptions::Parse:
case FrontendOptions::Typecheck:
case FrontendOptions::DumpParse:
case FrontendOptions::DumpInterfaceHash:
case FrontendOptions::DumpAST:
case FrontendOptions::PrintAST:
case FrontendOptions::EmitPCH:
case FrontendOptions::DumpScopeMaps:
case FrontendOptions::DumpTypeRefinementContexts:
case FrontendOptions::EmitSILGen:
case FrontendOptions::Immediate:
case FrontendOptions::REPL:
if (!Opts.ModuleOutputPath.empty())
Diags.diagnose(SourceLoc(), diag::error_mode_cannot_emit_module);
else
Diags.diagnose(SourceLoc(), diag::error_mode_cannot_emit_module_doc);
return true;
case FrontendOptions::EmitModuleOnly:
case FrontendOptions::EmitSIL:
case FrontendOptions::EmitSIBGen:
case FrontendOptions::EmitSIB:
case FrontendOptions::EmitIR:
case FrontendOptions::EmitBC:
case FrontendOptions::EmitAssembly:
case FrontendOptions::EmitObject:
case FrontendOptions::EmitImportedModules:
break;
}
}
if (const Arg *A = Args.getLastArg(OPT_module_link_name)) {
Opts.ModuleLinkName = A->getValue();
}
Opts.AlwaysSerializeDebuggingOptions |=
Args.hasArg(OPT_serialize_debugging_options);
Opts.EnableSourceImport |= Args.hasArg(OPT_enable_source_import);
Opts.ImportUnderlyingModule |= Args.hasArg(OPT_import_underlying_module);
Opts.SILSerializeAll |= Args.hasArg(OPT_sil_serialize_all);
Opts.EnableSerializationNestedTypeLookupTable &=
!Args.hasArg(OPT_disable_serialization_nested_type_lookup_table);
if (const Arg *A = Args.getLastArgNoClaim(OPT_import_objc_header)) {
Opts.ImplicitObjCHeaderPath = A->getValue();
Opts.SerializeBridgingHeader |=
!Opts.PrimaryInput && !Opts.ModuleOutputPath.empty();
}
for (const Arg *A : make_range(Args.filtered_begin(OPT_import_module),
Args.filtered_end())) {
Opts.ImplicitImportModuleNames.push_back(A->getValue());
}
for (const Arg *A : make_range(Args.filtered_begin(OPT_Xllvm),
Args.filtered_end())) {
Opts.LLVMArgs.push_back(A->getValue());
}
return false;
}
static void diagnoseSwiftVersion(Optional<version::Version> &vers, Arg *verArg,
ArgList &Args, DiagnosticEngine &diags) {
// General invalid version error
diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
verArg->getAsString(Args), verArg->getValue());
// Check for an unneeded minor version, otherwise just list valid versions
if (vers.hasValue() && !vers.getValue().empty() &&
vers.getValue().asMajorVersion().getEffectiveLanguageVersion()) {
diags.diagnose(SourceLoc(), diag::note_swift_version_major,
vers.getValue()[0]);
} else {
// Note valid versions instead
auto validVers = version::Version::getValidEffectiveVersions();
auto versStr =
"'" + llvm::join(validVers.begin(), validVers.end(), "', '") + "'";
diags.diagnose(SourceLoc(), diag::note_valid_swift_versions, versStr);
}
}
static bool ParseLangArgs(LangOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags,
const FrontendOptions &FrontendOpts) {
using namespace options;
if (auto A = Args.getLastArg(OPT_swift_version)) {
auto vers = version::Version::parseVersionString(
A->getValue(), SourceLoc(), &Diags);
bool isValid = false;
if (vers.hasValue()) {
if (auto effectiveVers = vers.getValue().getEffectiveLanguageVersion()) {
Opts.EffectiveLanguageVersion = effectiveVers.getValue();
isValid = true;
}
}
if (!isValid)
diagnoseSwiftVersion(vers, A, Args, Diags);
}
Opts.AttachCommentsToDecls |= Args.hasArg(OPT_dump_api_path);
Opts.UseMalloc |= Args.hasArg(OPT_use_malloc);
Opts.DiagnosticsEditorMode |= Args.hasArg(OPT_diagnostics_editor_mode);
Opts.EnableExperimentalPropertyBehaviors |=
Args.hasArg(OPT_enable_experimental_property_behaviors);
Opts.EnableClassResilience |=
Args.hasArg(OPT_enable_class_resilience);
Opts.DisableAvailabilityChecking |=
Args.hasArg(OPT_disable_availability_checking);
Opts.EnableTSANInoutInstrumentation |=
Args.hasArg(OPT_enable_experimental_tsan_inout_instrumentation);
if (FrontendOpts.InputKind == InputFileKind::IFK_SIL)
Opts.DisableAvailabilityChecking = true;
if (auto A = Args.getLastArg(OPT_enable_access_control,
OPT_disable_access_control)) {
Opts.EnableAccessControl
= A->getOption().matches(OPT_enable_access_control);
}
Opts.DisableTypoCorrection |= Args.hasArg(OPT_disable_typo_correction);
Opts.CodeCompleteInitsInPostfixExpr |=
Args.hasArg(OPT_code_complete_inits_in_postfix_expr);
if (auto A = Args.getLastArg(OPT_enable_target_os_checking,
OPT_disable_target_os_checking)) {
Opts.EnableTargetOSChecking
= A->getOption().matches(OPT_enable_target_os_checking);
}
Opts.EnableASTScopeLookup |= Args.hasArg(OPT_enable_astscope_lookup);
Opts.DebugConstraintSolver |= Args.hasArg(OPT_debug_constraints);
Opts.EnableConstraintPropagation |= Args.hasArg(OPT_propagate_constraints);
Opts.IterativeTypeChecker |= Args.hasArg(OPT_iterative_type_checker);
Opts.DebugGenericSignatures |= Args.hasArg(OPT_debug_generic_signatures);
Opts.DebuggerSupport |= Args.hasArg(OPT_debugger_support);
if (Opts.DebuggerSupport)
Opts.EnableDollarIdentifiers = true;
Opts.Playground |= Args.hasArg(OPT_playground);
Opts.InferImportAsMember |= Args.hasArg(OPT_enable_infer_import_as_member);
Opts.EnableThrowWithoutTry |= Args.hasArg(OPT_enable_throw_without_try);
if (auto A = Args.getLastArg(OPT_enable_objc_attr_requires_foundation_module,
OPT_disable_objc_attr_requires_foundation_module)) {
Opts.EnableObjCAttrRequiresFoundation
= A->getOption().matches(OPT_enable_objc_attr_requires_foundation_module);
}
if (auto A = Args.getLastArg(OPT_enable_testable_attr_requires_testable_module,
OPT_disable_testable_attr_requires_testable_module)) {
Opts.EnableTestableAttrRequiresTestableModule
= A->getOption().matches(OPT_enable_testable_attr_requires_testable_module);
}
if (const Arg *A = Args.getLastArg(OPT_debug_constraints_attempt)) {
unsigned attempt;
if (StringRef(A->getValue()).getAsInteger(10, attempt)) {
Diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
A->getAsString(Args), A->getValue());
return true;
}
Opts.DebugConstraintSolverAttempt = attempt;
}
if (const Arg *A = Args.getLastArg(OPT_debug_forbid_typecheck_prefix)) {
Opts.DebugForbidTypecheckPrefix = A->getValue();
}
if (const Arg *A = Args.getLastArg(OPT_solver_memory_threshold)) {
unsigned threshold;
if (StringRef(A->getValue()).getAsInteger(10, threshold)) {
Diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
A->getAsString(Args), A->getValue());
return true;
}
Opts.SolverMemoryThreshold = threshold;
}
for (const Arg *A : make_range(Args.filtered_begin(OPT_D),
Args.filtered_end())) {
Opts.addCustomConditionalCompilationFlag(A->getValue());
}
Opts.EnableAppExtensionRestrictions |= Args.hasArg(OPT_enable_app_extension);
llvm::Triple Target = Opts.Target;
StringRef TargetArg;
if (const Arg *A = Args.getLastArg(OPT_target)) {
Target = llvm::Triple(A->getValue());
TargetArg = A->getValue();
}
#if __APPLE__
else if (FrontendOpts.actionIsImmediate()) {
clang::VersionTuple currentOSVersion = inferAppleHostOSVersion();
if (currentOSVersion.getMajor() != 0) {
llvm::Triple::OSType currentOS = Target.getOS();
if (currentOS == llvm::Triple::Darwin)
currentOS = llvm::Triple::MacOSX;
SmallString<16> newOSBuf;
llvm::raw_svector_ostream newOS(newOSBuf);
newOS << llvm::Triple::getOSTypeName(currentOS) << currentOSVersion;
Target.setOSName(newOS.str());
}
}
#endif
Opts.EnableObjCInterop = Target.isOSDarwin();
if (auto A = Args.getLastArg(OPT_enable_objc_interop,
OPT_disable_objc_interop)) {
Opts.EnableObjCInterop
= A->getOption().matches(OPT_enable_objc_interop);
}
Opts.EnableSILOpaqueValues |= Args.hasArg(OPT_enable_sil_opaque_values);
// Must be processed after any other language options that could affect
// platform conditions.
bool UnsupportedOS, UnsupportedArch;
std::tie(UnsupportedOS, UnsupportedArch) = Opts.setTarget(Target);
SmallVector<StringRef, 3> TargetComponents;
TargetArg.split(TargetComponents, "-");
if (UnsupportedArch) {
auto TargetArgArch = TargetComponents.size() ? TargetComponents[0] : "";
Diags.diagnose(SourceLoc(), diag::error_unsupported_target_arch, TargetArgArch);
}
if (UnsupportedOS) {
auto TargetArgOS = TargetComponents.size() > 2 ? TargetComponents[2] : "";
Diags.diagnose(SourceLoc(), diag::error_unsupported_target_os, TargetArgOS);
}
return UnsupportedOS || UnsupportedArch;
}
static bool ParseClangImporterArgs(ClangImporterOptions &Opts,
ArgList &Args,
DiagnosticEngine &Diags,
StringRef workingDirectory) {