mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
33cdd61835
Implement a new "fast" dependency scanning option, `-scan-dependencies`, in the Swift frontend that determines all of the source file and module dependencies for a given set of Swift sources. It covers four forms of modules: 1) Swift (serialized) module files, by reading the module header 2) Swift interface files, by parsing the source code to find imports 3) Swift source modules, by parsing the source code to find imports 4) Clang modules, using Clang's fast dependency scanning tool A single `-scan-dependencies` operation maps out the full dependency graph for the given Swift source files, including all of the Swift and Clang modules that may need to be built, such that all of the work can be scheduled up front by the Swift driver or any other build system that understands this option. The dependency graph is emitted as JSON, which can be consumed by these other tools.
621 lines
18 KiB
C++
621 lines
18 KiB
C++
//===--- FrontendOptions.cpp ----------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#include "swift/Frontend/FrontendOptions.h"
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#include "swift/AST/DiagnosticsFrontend.h"
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#include "swift/Option/Options.h"
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#include "swift/Parse/Lexer.h"
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#include "swift/Strings.h"
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#include "llvm/Option/Arg.h"
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#include "llvm/Option/ArgList.h"
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#include "llvm/Option/Option.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/LineIterator.h"
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#include "llvm/Support/Path.h"
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using namespace swift;
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using namespace llvm::opt;
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bool FrontendOptions::needsProperModuleName(ActionType action) {
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switch (action) {
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case ActionType::NoneAction:
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case ActionType::Parse:
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case ActionType::ResolveImports:
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case ActionType::Typecheck:
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case ActionType::DumpParse:
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case ActionType::DumpAST:
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case ActionType::EmitSyntax:
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case ActionType::DumpInterfaceHash:
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case ActionType::PrintAST:
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case ActionType::DumpScopeMaps:
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case ActionType::DumpTypeRefinementContexts:
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case ActionType::DumpPCM:
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return false;
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case ActionType::EmitPCH:
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case ActionType::EmitSILGen:
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case ActionType::EmitSIL:
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case ActionType::EmitSIBGen:
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case ActionType::EmitSIB:
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case ActionType::EmitModuleOnly:
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case ActionType::MergeModules:
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case ActionType::CompileModuleFromInterface:
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return true;
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case ActionType::Immediate:
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case ActionType::REPL:
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return false;
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case ActionType::EmitAssembly:
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case ActionType::EmitIR:
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case ActionType::EmitBC:
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case ActionType::EmitObject:
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case ActionType::EmitImportedModules:
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case ActionType::DumpTypeInfo:
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case ActionType::EmitPCM:
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case ActionType::ScanDependencies:
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return true;
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}
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llvm_unreachable("Unknown ActionType");
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}
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bool FrontendOptions::isActionImmediate(ActionType action) {
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switch (action) {
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case ActionType::NoneAction:
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case ActionType::Parse:
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case ActionType::ResolveImports:
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case ActionType::Typecheck:
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case ActionType::DumpParse:
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case ActionType::DumpAST:
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case ActionType::EmitSyntax:
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case ActionType::DumpInterfaceHash:
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case ActionType::PrintAST:
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case ActionType::DumpScopeMaps:
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case ActionType::DumpTypeRefinementContexts:
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case ActionType::EmitPCH:
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case ActionType::EmitSILGen:
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case ActionType::EmitSIL:
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case ActionType::EmitSIBGen:
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case ActionType::EmitSIB:
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case ActionType::EmitModuleOnly:
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case ActionType::MergeModules:
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case ActionType::CompileModuleFromInterface:
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return false;
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case ActionType::Immediate:
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case ActionType::REPL:
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return true;
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case ActionType::EmitAssembly:
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case ActionType::EmitIR:
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case ActionType::EmitBC:
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case ActionType::EmitObject:
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case ActionType::EmitImportedModules:
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case ActionType::DumpTypeInfo:
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case ActionType::EmitPCM:
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case ActionType::DumpPCM:
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case ActionType::ScanDependencies:
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return false;
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}
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llvm_unreachable("Unknown ActionType");
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}
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bool FrontendOptions::shouldActionOnlyParse(ActionType action) {
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switch (action) {
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case FrontendOptions::ActionType::Parse:
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case FrontendOptions::ActionType::DumpParse:
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case FrontendOptions::ActionType::EmitSyntax:
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case FrontendOptions::ActionType::DumpInterfaceHash:
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case FrontendOptions::ActionType::EmitImportedModules:
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case FrontendOptions::ActionType::ScanDependencies:
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return true;
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default:
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return false;
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}
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}
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void FrontendOptions::forAllOutputPaths(
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const InputFile &input, llvm::function_ref<void(StringRef)> fn) const {
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if (RequestedAction != FrontendOptions::ActionType::EmitModuleOnly &&
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RequestedAction != FrontendOptions::ActionType::MergeModules) {
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if (InputsAndOutputs.isWholeModule())
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InputsAndOutputs.forEachOutputFilename(fn);
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else
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fn(input.outputFilename());
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}
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const SupplementaryOutputPaths &outs =
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input.getPrimarySpecificPaths().SupplementaryOutputs;
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const std::string *outputs[] = {&outs.ModuleOutputPath,
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&outs.ModuleDocOutputPath,
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&outs.ModuleInterfaceOutputPath,
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&outs.PrivateModuleInterfaceOutputPath,
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&outs.ObjCHeaderOutputPath,
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&outs.ModuleSourceInfoOutputPath};
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for (const std::string *next : outputs) {
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if (!next->empty())
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fn(*next);
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}
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}
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file_types::ID
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FrontendOptions::formatForPrincipalOutputFileForAction(ActionType action) {
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using namespace file_types;
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switch (action) {
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case ActionType::NoneAction:
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return TY_Nothing;
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case ActionType::Parse:
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case ActionType::ResolveImports:
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case ActionType::Typecheck:
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case ActionType::DumpParse:
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case ActionType::DumpInterfaceHash:
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case ActionType::DumpAST:
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case ActionType::EmitSyntax:
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case ActionType::PrintAST:
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case ActionType::DumpScopeMaps:
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case ActionType::DumpTypeRefinementContexts:
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case ActionType::DumpTypeInfo:
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case ActionType::DumpPCM:
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return TY_Nothing;
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case ActionType::EmitPCH:
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return TY_PCH;
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case ActionType::EmitSILGen:
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return TY_RawSIL;
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case ActionType::EmitSIL:
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return TY_SIL;
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case ActionType::EmitSIBGen:
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return TY_RawSIB;
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case ActionType::EmitSIB:
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return TY_SIB;
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case ActionType::MergeModules:
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case ActionType::EmitModuleOnly:
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case ActionType::CompileModuleFromInterface:
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return TY_SwiftModuleFile;
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case ActionType::Immediate:
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case ActionType::REPL:
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// These modes have no frontend-generated output.
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return TY_Nothing;
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case ActionType::EmitAssembly:
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return TY_Assembly;
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case ActionType::EmitIR:
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return TY_LLVM_IR;
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case ActionType::EmitBC:
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return TY_LLVM_BC;
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case ActionType::EmitObject:
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return TY_Object;
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case ActionType::EmitImportedModules:
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return TY_ImportedModules;
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case ActionType::EmitPCM:
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return TY_ClangModuleFile;
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case ActionType::ScanDependencies:
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return TY_JSONDependencies;
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}
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llvm_unreachable("unhandled action");
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}
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bool FrontendOptions::canActionEmitDependencies(ActionType action) {
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switch (action) {
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case ActionType::NoneAction:
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case ActionType::Parse:
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case ActionType::DumpParse:
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case ActionType::DumpInterfaceHash:
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case ActionType::DumpAST:
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case ActionType::EmitSyntax:
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case ActionType::PrintAST:
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case ActionType::DumpScopeMaps:
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case ActionType::DumpTypeRefinementContexts:
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case ActionType::DumpTypeInfo:
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case ActionType::CompileModuleFromInterface:
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case ActionType::Immediate:
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case ActionType::REPL:
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case ActionType::DumpPCM:
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return false;
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case ActionType::ResolveImports:
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case ActionType::Typecheck:
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case ActionType::MergeModules:
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case ActionType::EmitModuleOnly:
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case ActionType::EmitPCH:
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case ActionType::EmitSILGen:
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case ActionType::EmitSIL:
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case ActionType::EmitSIBGen:
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case ActionType::EmitSIB:
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case ActionType::EmitIR:
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case ActionType::EmitBC:
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case ActionType::EmitAssembly:
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case ActionType::EmitObject:
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case ActionType::EmitImportedModules:
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case ActionType::EmitPCM:
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case ActionType::ScanDependencies:
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return true;
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}
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llvm_unreachable("unhandled action");
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}
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bool FrontendOptions::canActionEmitReferenceDependencies(ActionType action) {
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switch (action) {
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case ActionType::NoneAction:
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case ActionType::Parse:
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case ActionType::ResolveImports:
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case ActionType::DumpParse:
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case ActionType::DumpInterfaceHash:
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case ActionType::DumpAST:
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case ActionType::EmitSyntax:
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case ActionType::PrintAST:
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case ActionType::DumpScopeMaps:
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case ActionType::DumpTypeRefinementContexts:
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case ActionType::DumpTypeInfo:
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case ActionType::CompileModuleFromInterface:
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case ActionType::Immediate:
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case ActionType::REPL:
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case ActionType::EmitPCM:
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case ActionType::DumpPCM:
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case ActionType::ScanDependencies:
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return false;
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case ActionType::Typecheck:
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case ActionType::MergeModules:
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case ActionType::EmitModuleOnly:
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case ActionType::EmitPCH:
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case ActionType::EmitSILGen:
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case ActionType::EmitSIL:
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case ActionType::EmitSIBGen:
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case ActionType::EmitSIB:
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case ActionType::EmitIR:
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case ActionType::EmitBC:
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case ActionType::EmitAssembly:
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case ActionType::EmitObject:
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case ActionType::EmitImportedModules:
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return true;
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}
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llvm_unreachable("unhandled action");
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}
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bool FrontendOptions::canActionEmitSwiftRanges(ActionType action) {
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return canActionEmitReferenceDependencies(action);
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}
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bool FrontendOptions::canActionEmitCompiledSource(ActionType action) {
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return canActionEmitReferenceDependencies(action);
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}
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bool FrontendOptions::canActionEmitObjCHeader(ActionType action) {
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switch (action) {
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case ActionType::NoneAction:
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case ActionType::Parse:
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case ActionType::ResolveImports:
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case ActionType::DumpParse:
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case ActionType::DumpInterfaceHash:
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case ActionType::DumpAST:
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case ActionType::EmitSyntax:
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case ActionType::PrintAST:
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case ActionType::EmitPCH:
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case ActionType::DumpScopeMaps:
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case ActionType::DumpTypeRefinementContexts:
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case ActionType::DumpTypeInfo:
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case ActionType::CompileModuleFromInterface:
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case ActionType::Immediate:
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case ActionType::REPL:
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case ActionType::EmitPCM:
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case ActionType::DumpPCM:
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case ActionType::ScanDependencies:
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return false;
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case ActionType::Typecheck:
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case ActionType::MergeModules:
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case ActionType::EmitModuleOnly:
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case ActionType::EmitSILGen:
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case ActionType::EmitSIL:
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case ActionType::EmitSIBGen:
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case ActionType::EmitSIB:
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case ActionType::EmitIR:
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case ActionType::EmitBC:
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case ActionType::EmitAssembly:
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case ActionType::EmitObject:
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case ActionType::EmitImportedModules:
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return true;
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}
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llvm_unreachable("unhandled action");
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}
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bool FrontendOptions::canActionEmitLoadedModuleTrace(ActionType action) {
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switch (action) {
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case ActionType::NoneAction:
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case ActionType::Parse:
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case ActionType::DumpParse:
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case ActionType::DumpInterfaceHash:
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case ActionType::DumpAST:
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case ActionType::EmitSyntax:
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case ActionType::PrintAST:
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case ActionType::DumpScopeMaps:
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case ActionType::DumpTypeRefinementContexts:
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case ActionType::DumpTypeInfo:
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case ActionType::CompileModuleFromInterface:
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case ActionType::Immediate:
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case ActionType::REPL:
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case ActionType::EmitPCM:
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case ActionType::DumpPCM:
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case ActionType::ScanDependencies:
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return false;
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case ActionType::ResolveImports:
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case ActionType::Typecheck:
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case ActionType::MergeModules:
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case ActionType::EmitModuleOnly:
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case ActionType::EmitPCH:
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case ActionType::EmitSILGen:
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case ActionType::EmitSIL:
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case ActionType::EmitSIBGen:
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case ActionType::EmitSIB:
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case ActionType::EmitIR:
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case ActionType::EmitBC:
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case ActionType::EmitAssembly:
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case ActionType::EmitObject:
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case ActionType::EmitImportedModules:
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return true;
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}
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llvm_unreachable("unhandled action");
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}
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bool FrontendOptions::canActionEmitModule(ActionType action) {
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switch (action) {
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case ActionType::NoneAction:
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case ActionType::Parse:
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case ActionType::ResolveImports:
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case ActionType::Typecheck:
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case ActionType::DumpParse:
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case ActionType::DumpInterfaceHash:
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case ActionType::DumpAST:
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case ActionType::EmitSyntax:
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case ActionType::PrintAST:
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case ActionType::EmitPCH:
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case ActionType::DumpScopeMaps:
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case ActionType::DumpTypeRefinementContexts:
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case ActionType::DumpTypeInfo:
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case ActionType::EmitSILGen:
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case ActionType::CompileModuleFromInterface:
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case ActionType::Immediate:
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case ActionType::REPL:
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case ActionType::EmitPCM:
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case ActionType::DumpPCM:
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case ActionType::ScanDependencies:
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return false;
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case ActionType::MergeModules:
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case ActionType::EmitModuleOnly:
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case ActionType::EmitSIL:
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case ActionType::EmitSIBGen:
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case ActionType::EmitSIB:
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case ActionType::EmitIR:
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case ActionType::EmitBC:
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case ActionType::EmitAssembly:
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case ActionType::EmitObject:
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case ActionType::EmitImportedModules:
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return true;
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}
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llvm_unreachable("unhandled action");
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}
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bool FrontendOptions::canActionEmitModuleDoc(ActionType action) {
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return canActionEmitModule(action);
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}
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bool FrontendOptions::canActionEmitInterface(ActionType action) {
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switch (action) {
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case ActionType::NoneAction:
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case ActionType::Parse:
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case ActionType::ResolveImports:
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case ActionType::DumpParse:
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case ActionType::DumpInterfaceHash:
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case ActionType::DumpAST:
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case ActionType::EmitSyntax:
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case ActionType::PrintAST:
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case ActionType::EmitImportedModules:
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case ActionType::EmitPCH:
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case ActionType::DumpScopeMaps:
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case ActionType::DumpTypeRefinementContexts:
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case ActionType::DumpTypeInfo:
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case ActionType::EmitSILGen:
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case ActionType::EmitSIBGen:
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case ActionType::CompileModuleFromInterface:
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case ActionType::Immediate:
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case ActionType::REPL:
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case ActionType::EmitPCM:
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case ActionType::DumpPCM:
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case ActionType::ScanDependencies:
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return false;
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case ActionType::Typecheck:
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case ActionType::MergeModules:
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case ActionType::EmitModuleOnly:
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case ActionType::EmitSIL:
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case ActionType::EmitSIB:
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case ActionType::EmitIR:
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case ActionType::EmitBC:
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case ActionType::EmitAssembly:
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case ActionType::EmitObject:
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return true;
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}
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llvm_unreachable("unhandled action");
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}
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bool FrontendOptions::doesActionProduceOutput(ActionType action) {
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switch (action) {
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case ActionType::Parse:
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case ActionType::ResolveImports:
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case ActionType::Typecheck:
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case ActionType::DumpParse:
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case ActionType::DumpAST:
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case ActionType::EmitSyntax:
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case ActionType::DumpInterfaceHash:
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case ActionType::PrintAST:
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case ActionType::DumpScopeMaps:
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case ActionType::DumpTypeRefinementContexts:
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case ActionType::EmitPCH:
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case ActionType::EmitSILGen:
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case ActionType::EmitSIL:
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case ActionType::EmitSIBGen:
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case ActionType::EmitSIB:
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case ActionType::EmitModuleOnly:
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case ActionType::EmitAssembly:
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case ActionType::EmitIR:
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case ActionType::EmitBC:
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case ActionType::EmitObject:
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case ActionType::EmitImportedModules:
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case ActionType::MergeModules:
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case ActionType::CompileModuleFromInterface:
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case ActionType::DumpTypeInfo:
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case ActionType::EmitPCM:
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case ActionType::DumpPCM:
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case ActionType::ScanDependencies:
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return true;
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case ActionType::NoneAction:
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case ActionType::Immediate:
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case ActionType::REPL:
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return false;
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}
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llvm_unreachable("Unknown ActionType");
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}
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bool FrontendOptions::doesActionProduceTextualOutput(ActionType action) {
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switch (action) {
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case ActionType::NoneAction:
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case ActionType::EmitPCH:
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case ActionType::EmitSIBGen:
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case ActionType::EmitSIB:
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case ActionType::MergeModules:
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case ActionType::EmitModuleOnly:
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case ActionType::CompileModuleFromInterface:
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case ActionType::EmitBC:
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case ActionType::EmitObject:
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case ActionType::Immediate:
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case ActionType::REPL:
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case ActionType::EmitPCM:
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return false;
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case ActionType::Parse:
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case ActionType::ResolveImports:
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case ActionType::Typecheck:
|
|
case ActionType::DumpParse:
|
|
case ActionType::DumpInterfaceHash:
|
|
case ActionType::DumpAST:
|
|
case ActionType::EmitSyntax:
|
|
case ActionType::PrintAST:
|
|
case ActionType::DumpScopeMaps:
|
|
case ActionType::DumpTypeRefinementContexts:
|
|
case ActionType::EmitImportedModules:
|
|
case ActionType::EmitSILGen:
|
|
case ActionType::EmitSIL:
|
|
case ActionType::EmitAssembly:
|
|
case ActionType::EmitIR:
|
|
case ActionType::DumpTypeInfo:
|
|
case ActionType::DumpPCM:
|
|
case ActionType::ScanDependencies:
|
|
return true;
|
|
}
|
|
llvm_unreachable("unhandled action");
|
|
}
|
|
|
|
bool FrontendOptions::doesActionGenerateSIL(ActionType action) {
|
|
switch (action) {
|
|
case ActionType::NoneAction:
|
|
case ActionType::Parse:
|
|
case ActionType::ResolveImports:
|
|
case ActionType::Typecheck:
|
|
case ActionType::DumpParse:
|
|
case ActionType::DumpInterfaceHash:
|
|
case ActionType::EmitSyntax:
|
|
case ActionType::DumpAST:
|
|
case ActionType::PrintAST:
|
|
case ActionType::DumpScopeMaps:
|
|
case ActionType::DumpTypeRefinementContexts:
|
|
case ActionType::EmitImportedModules:
|
|
case ActionType::EmitPCH:
|
|
case ActionType::CompileModuleFromInterface:
|
|
case ActionType::EmitPCM:
|
|
case ActionType::DumpPCM:
|
|
case ActionType::ScanDependencies:
|
|
return false;
|
|
case ActionType::EmitSILGen:
|
|
case ActionType::EmitSIBGen:
|
|
case ActionType::EmitSIL:
|
|
case ActionType::EmitSIB:
|
|
case ActionType::EmitModuleOnly:
|
|
case ActionType::MergeModules:
|
|
case ActionType::Immediate:
|
|
case ActionType::REPL:
|
|
case ActionType::EmitAssembly:
|
|
case ActionType::EmitIR:
|
|
case ActionType::EmitBC:
|
|
case ActionType::EmitObject:
|
|
case ActionType::DumpTypeInfo:
|
|
return true;
|
|
}
|
|
llvm_unreachable("unhandled action");
|
|
}
|
|
|
|
bool FrontendOptions::doesActionGenerateIR(ActionType action) {
|
|
switch (action) {
|
|
case ActionType::NoneAction:
|
|
case ActionType::Parse:
|
|
case ActionType::DumpParse:
|
|
case ActionType::DumpInterfaceHash:
|
|
case ActionType::DumpAST:
|
|
case ActionType::EmitSyntax:
|
|
case ActionType::PrintAST:
|
|
case ActionType::DumpScopeMaps:
|
|
case ActionType::DumpTypeRefinementContexts:
|
|
case ActionType::DumpTypeInfo:
|
|
case ActionType::CompileModuleFromInterface:
|
|
case ActionType::Typecheck:
|
|
case ActionType::ResolveImports:
|
|
case ActionType::MergeModules:
|
|
case ActionType::EmitModuleOnly:
|
|
case ActionType::EmitPCH:
|
|
case ActionType::EmitSILGen:
|
|
case ActionType::EmitSIL:
|
|
case ActionType::EmitSIBGen:
|
|
case ActionType::EmitSIB:
|
|
case ActionType::EmitImportedModules:
|
|
case ActionType::EmitPCM:
|
|
case ActionType::DumpPCM:
|
|
case ActionType::ScanDependencies:
|
|
return false;
|
|
case ActionType::Immediate:
|
|
case ActionType::REPL:
|
|
case ActionType::EmitIR:
|
|
case ActionType::EmitBC:
|
|
case ActionType::EmitAssembly:
|
|
case ActionType::EmitObject:
|
|
return true;
|
|
}
|
|
llvm_unreachable("unhandled action");
|
|
}
|
|
|
|
|
|
const PrimarySpecificPaths &
|
|
FrontendOptions::getPrimarySpecificPathsForAtMostOnePrimary() const {
|
|
return InputsAndOutputs.getPrimarySpecificPathsForAtMostOnePrimary();
|
|
}
|
|
|
|
const PrimarySpecificPaths &
|
|
FrontendOptions::getPrimarySpecificPathsForPrimary(StringRef filename) const {
|
|
return InputsAndOutputs.getPrimarySpecificPathsForPrimary(filename);
|
|
}
|