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122 lines
3.7 KiB
C++
122 lines
3.7 KiB
C++
//===--- Module.h - Swift Language Module ASTs ------------------*- 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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//
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// This file defines the Module class and its subclasses.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_MODULE_H
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#define SWIFT_MODULE_H
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#include "swift/AST/DeclContext.h"
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#include "swift/AST/Identifier.h"
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#include "llvm/ADT/ArrayRef.h"
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namespace swift {
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class ASTContext;
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class BraceStmt;
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class OneOfElementDecl;
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class NameAliasType;
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class TypeAliasDecl;
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class LookupCache;
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/// NLKind - This is a specifier for the kind of name lookup being performed
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/// by various query methods.
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enum class NLKind {
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UnqualifiedLookup,
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QualifiedLookup,
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DotLookup
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};
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/// Module - A unit of modularity. The current translation unit is a
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/// module, as is an imported module.
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class Module : public DeclContext {
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public:
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ASTContext &Ctx;
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Identifier Name;
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protected:
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Module(DeclContextKind Kind, Identifier Name, ASTContext &Ctx)
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: DeclContext(Kind, nullptr), Ctx(Ctx), Name(Name) {
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}
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public:
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static bool classof(const Module *M) {
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return true;
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}
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static bool classof(const DeclContext *DC) {
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return DC->isModuleContext();
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}
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private:
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// Make placement new and vanilla new/delete illegal for DeclVarNames.
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void *operator new(size_t Bytes) throw() = delete;
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void operator delete(void *Data) throw() = delete;
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void *operator new(size_t Bytes, void *Mem) throw() = delete;
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public:
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// Only allow allocation of Modules using the allocator in ASTContext
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// or by doing a placement new.
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void *operator new(size_t Bytes, ASTContext &C,
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unsigned Alignment = 8) throw();
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};
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/// TranslationUnit - This contains information about all of the decls and
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/// external references in a translation unit, which is one file.
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class TranslationUnit : public Module {
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public:
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/// Body - This is a synthesized BraceStmt that holds the top level
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/// expressions and declarations for a translation unit.
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BraceStmt *Body;
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/// UnresolvedTypes - This is a list of types that were unresolved at the end
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/// of the translation unit's parse phase.
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ArrayRef<TypeAliasDecl*> UnresolvedTypesForParser;
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/// UnresolvedScopedTypes - This is a list of scope-qualified types
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/// that were unresolved at the end of the translation unit's parse
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/// phase.
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ArrayRef<std::pair<TypeAliasDecl*,TypeAliasDecl*> >
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UnresolvedScopedTypesForParser;
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TranslationUnit(Identifier Name, ASTContext &C)
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: Module(DeclContextKind::TranslationUnit, Name, C) {
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}
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void dump() const;
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// Implement isa/cast/dyncast/etc.
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static bool classof(const TranslationUnit *TU) { return true; }
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static bool classof(const DeclContext *DC) {
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return DC->getContextKind() == DeclContextKind::TranslationUnit;
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}
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};
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/// BuiltinModule - This module represents the compiler's implicitly generated
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/// declarations in the builtin module.
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class BuiltinModule : public Module {
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public:
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BuiltinModule(Identifier Name, ASTContext &Ctx)
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: Module(DeclContextKind::BuiltinModule, Name, Ctx) {
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}
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// Implement isa/cast/dyncast/etc.
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static bool classof(const BuiltinModule *TU) { return true; }
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static bool classof(const DeclContext *DC) {
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return DC->getContextKind() == DeclContextKind::BuiltinModule;
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}
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};
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} // end namespace swift
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#endif
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