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Although I don't plan to bring over new assertions wholesale into the current qualification branch, it's entirely possible that various minor changes in main will use the new assertions; having this basic support in the release branch will simplify that. (This is why I'm adding the includes as a separate pass from rewriting the individual assertions)
119 lines
3.8 KiB
C++
119 lines
3.8 KiB
C++
//===--- SILGenRequests.cpp - Requests for SIL Generation ----------------===//
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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) 2020 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/AST/SILGenRequests.h"
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#include "swift/AST/ASTContext.h"
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#include "swift/AST/Module.h"
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#include "swift/AST/FileUnit.h"
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#include "swift/AST/SourceFile.h"
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#include "swift/Basic/Assertions.h"
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#include "swift/SIL/SILModule.h"
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#include "swift/Subsystems.h"
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using namespace swift;
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namespace swift {
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// Implement the SILGen type zone (zone 12).
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#define SWIFT_TYPEID_ZONE SILGen
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#define SWIFT_TYPEID_HEADER "swift/AST/SILGenTypeIDZone.def"
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#include "swift/Basic/ImplementTypeIDZone.h"
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#undef SWIFT_TYPEID_ZONE
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#undef SWIFT_TYPEID_HEADER
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} // end namespace swift
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void swift::simple_display(llvm::raw_ostream &out,
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const ASTLoweringDescriptor &desc) {
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auto *MD = desc.context.dyn_cast<ModuleDecl *>();
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auto *unit = desc.context.dyn_cast<FileUnit *>();
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if (MD) {
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out << "Lowering AST to SIL for module " << MD->getName();
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} else {
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assert(unit);
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out << "Lowering AST to SIL for file ";
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simple_display(out, unit);
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}
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}
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SourceLoc swift::extractNearestSourceLoc(const ASTLoweringDescriptor &desc) {
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return SourceLoc();
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}
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evaluator::DependencySource ASTLoweringRequest::readDependencySource(
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const evaluator::DependencyRecorder &e) const {
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auto &desc = std::get<0>(getStorage());
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// We don't track dependencies in whole-module mode.
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if (auto *mod = desc.context.dyn_cast<ModuleDecl *>()) {
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return nullptr;
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}
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// If we have a single source file, it's the source of dependencies.
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return dyn_cast<SourceFile>(desc.context.get<FileUnit *>());
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}
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ArrayRef<FileUnit *> ASTLoweringDescriptor::getFilesToEmit() const {
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// If we have a specific set of SILDeclRefs to emit, we don't emit any whole
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// files.
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if (SourcesToEmit)
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return {};
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if (auto *mod = context.dyn_cast<ModuleDecl *>())
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return mod->getFiles();
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// For a single file, we can form an ArrayRef that points at its storage in
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// the union.
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return llvm::ArrayRef(*context.getAddrOfPtr1());
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}
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SourceFile *ASTLoweringDescriptor::getSourceFileToParse() const {
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#ifndef NDEBUG
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auto sfCount = llvm::count_if(getFilesToEmit(), [](FileUnit *file) {
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return isa<SourceFile>(file);
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});
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auto silFileCount = llvm::count_if(getFilesToEmit(), [](FileUnit *file) {
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auto *SF = dyn_cast<SourceFile>(file);
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return SF && SF->Kind == SourceFileKind::SIL;
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});
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assert(silFileCount == 0 || (silFileCount == 1 && sfCount == 1) &&
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"Cannot currently mix a .sil file with other SourceFiles");
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#endif
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for (auto *file : getFilesToEmit()) {
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// Skip other kinds of files.
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auto *SF = dyn_cast<SourceFile>(file);
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if (!SF)
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continue;
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// Given the above precondition that a .sil file isn't mixed with other
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// SourceFiles, we can return a SIL file if we have it, or return nullptr.
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if (SF->Kind == SourceFileKind::SIL) {
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return SF;
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} else {
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return nullptr;
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}
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}
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return nullptr;
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}
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// Define request evaluation functions for each of the SILGen requests.
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static AbstractRequestFunction *silGenRequestFunctions[] = {
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#define SWIFT_REQUEST(Zone, Name, Sig, Caching, LocOptions) \
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reinterpret_cast<AbstractRequestFunction *>(&Name::evaluateRequest),
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#include "swift/AST/SILGenTypeIDZone.def"
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#undef SWIFT_REQUEST
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};
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void swift::registerSILGenRequestFunctions(Evaluator &evaluator) {
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evaluator.registerRequestFunctions(Zone::SILGen,
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silGenRequestFunctions);
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}
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