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95ff29b6e2
...by adding a new callback to ModuleLoader: loadDeclsConformingTo. This is used only when the type checker doesn't have enough contextual information to resolve an expression involving a literal, so it's possible many *LiteralConvertible types will never be loaded. Deserialization of types with conversion methods is still eager, since there's no easy hook to tell when they're needed, but the list has been renamed to refer to any decls that need to be eagerly deserialized, in case we need it for other purposes in the future. This probably won't help much in a real program, but it cuts the test run time by about 5-10% in my build. Swift SVN r7268
105 lines
3.7 KiB
C++
105 lines
3.7 KiB
C++
//===--- SerializedModuleLoader.h - Import Swift modules --------*- c++ -*-===//
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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 - 2015 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 http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_SERIALIZATION_MODULELOADER_H
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#define SWIFT_SERIALIZATION_MODULELOADER_H
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#include "swift/AST/ModuleLoader.h"
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#include "llvm/ADT/OwningPtr.h"
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namespace swift {
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class ASTContext;
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class Module;
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class ModuleFile;
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/// \brief Imports serialized Swift modules into an ASTContext.
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class SerializedModuleLoader : public ModuleLoader {
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private:
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ASTContext &Ctx;
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/// A { module, generation # } pair.
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using LoadedModulePair = std::pair<std::unique_ptr<ModuleFile>, unsigned>;
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std::vector<LoadedModulePair> LoadedModuleFiles;
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explicit SerializedModuleLoader(ASTContext &ctx);
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public:
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/// \brief Create a new importer that can load serialized Swift modules
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/// into the given ASTContext.
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static SerializedModuleLoader *create(ASTContext &ctx) {
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return new SerializedModuleLoader(ctx);
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}
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~SerializedModuleLoader();
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SerializedModuleLoader(const SerializedModuleLoader &) = delete;
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SerializedModuleLoader(SerializedModuleLoader &&) = delete;
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SerializedModuleLoader &operator=(const SerializedModuleLoader &) = delete;
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SerializedModuleLoader &operator=(SerializedModuleLoader &&) = delete;
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/// \brief Import a module with the given module path.
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///
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/// \param importLoc The location of the 'import' keyword.
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///
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/// \param path A sequence of (identifier, location) pairs that denote
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/// the dotted module name to load, e.g., AppKit.NSWindow.
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///
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/// \returns the module referenced, if it could be loaded. Otherwise,
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/// emits a diagnostic and returns NULL.
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virtual Module *
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loadModule(SourceLoc importLoc, Module::AccessPathTy path) override;
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/// \brief Look for declarations associated with the given name.
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///
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/// \param module The module to search.
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///
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/// \param accessPath The access path used to refer to the name within this
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/// (top-level) module.
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///
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/// \param name The name we're searching for.
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///
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/// \param lookupKind Whether we're performing qualified vs. unqualified
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/// lookup.
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///
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/// \param result Will be populated with the results of name lookup.
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virtual void lookupValue(Module *module,
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Module::AccessPathTy accessPath, Identifier name,
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NLKind lookupKind,
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SmallVectorImpl<ValueDecl*> &result) override;
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/// \brief Look for a declaration of the given operator.
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///
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/// \returns The operator decl, or null if this module does not define the
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/// operator in question.
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virtual OperatorDecl *lookupOperator(Module *module, Identifier name,
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DeclKind fixity) override;
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virtual void getReexportedModules(
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const Module *module,
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SmallVectorImpl<Module::ImportedModule> &exports) override;
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virtual void lookupVisibleDecls(const Module *module,
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Module::AccessPathTy accessPath,
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VisibleDeclConsumer &consumer,
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NLKind lookupKind) override;
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virtual void loadExtensions(NominalTypeDecl *nominal,
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unsigned previousGeneration) override;
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virtual void loadDeclsConformingTo(KnownProtocolKind kind,
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unsigned previousGeneration) override;
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};
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} // end namespace swift
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#endif
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