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d9d0b2e6a3
This will mainly be useful once extension binding is fully requestified, but even now it's a good idea to ensure module loading isn't kicking name lookup.
105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
//===--- SourceLoader.h - Import .swift files as 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 - 2017 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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#ifndef SWIFT_SEMA_SOURCELOADER_H
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#define SWIFT_SEMA_SOURCELOADER_H
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#include "swift/AST/ModuleLoader.h"
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namespace swift {
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class ASTContext;
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class ModuleDecl;
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/// Imports serialized Swift modules into an ASTContext.
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class SourceLoader : public ModuleLoader {
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private:
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ASTContext &Ctx;
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std::vector<ModuleDecl *> ModulesToBindExtensions;
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bool EnableLibraryEvolution;
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explicit SourceLoader(ASTContext &ctx,
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bool enableResilience,
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DependencyTracker *tracker)
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: ModuleLoader(tracker), Ctx(ctx),
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EnableLibraryEvolution(enableResilience) {}
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public:
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static std::unique_ptr<SourceLoader>
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create(ASTContext &ctx, bool enableResilience,
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DependencyTracker *tracker = nullptr) {
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return std::unique_ptr<SourceLoader>{
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new SourceLoader(ctx, enableResilience, tracker)
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};
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}
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SourceLoader(const SourceLoader &) = delete;
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SourceLoader(SourceLoader &&) = delete;
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SourceLoader &operator=(const SourceLoader &) = delete;
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SourceLoader &operator=(SourceLoader &&) = delete;
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/// Append visible module names to \p names. Note that names are possibly
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/// duplicated, and not guaranteed to be ordered in any way.
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void collectVisibleTopLevelModuleNames(
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SmallVectorImpl<Identifier> &names) const override;
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/// Check whether the module with a given name can be imported without
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/// importing it.
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///
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/// Note that even if this check succeeds, errors may still occur if the
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/// module is loaded in full.
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///
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/// If a non-null \p versionInfo is provided, the module version will be
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/// parsed and populated.
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virtual bool
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canImportModule(ImportPath::Module named, SourceLoc loc,
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ModuleVersionInfo *versionInfo,
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bool isTestableDependencyLookup = false) override;
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/// 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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/// returns NULL.
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virtual ModuleDecl *
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loadModule(SourceLoc importLoc,
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ImportPath::Module path,
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bool AllowMemoryCache) override;
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/// Load extensions to the given nominal type.
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///
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/// \param nominal The nominal type whose extensions should be loaded.
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///
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/// \param previousGeneration The previous generation number. The AST already
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/// contains extensions loaded from any generation up to and including this
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/// one.
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virtual void loadExtensions(NominalTypeDecl *nominal,
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unsigned previousGeneration) override;
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virtual void loadObjCMethods(
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NominalTypeDecl *typeDecl,
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ObjCSelector selector,
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bool isInstanceMethod,
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unsigned previousGeneration,
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llvm::TinyPtrVector<AbstractFunctionDecl *> &methods) override
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{
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// Parsing populates the Objective-C method tables.
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}
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};
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}
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#endif
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