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f5b3d19703
This gives us more fine-grained information which will be plumbed through the various requests.
81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
//===--- RequirementSignature.h - Requirement Signature AST -----*- 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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//
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// This file defines the RequirementSignature class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_AST_REQUIREMENT_SIGNATURE_H
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#define SWIFT_AST_REQUIREMENT_SIGNATURE_H
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#include "swift/AST/GenericSignature.h"
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#include "swift/AST/Type.h"
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namespace swift {
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/// A description of a typealias defined in a protocol.
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class ProtocolTypeAlias final {
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Identifier Name;
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Type UnderlyingType;
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public:
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ProtocolTypeAlias(Identifier name, Type underlyingType)
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: Name(name), UnderlyingType(underlyingType) {}
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/// Returns the name of the typealias.
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Identifier getName() const { return Name; }
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/// Returns the underlying type of the typealias.
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Type getUnderlyingType() const { return UnderlyingType; }
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};
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/// The requirements that describe a protocol from the viewpoint of the
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/// generics system.
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class RequirementSignature final {
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ArrayRef<Requirement> Requirements;
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ArrayRef<ProtocolTypeAlias> TypeAliases;
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GenericSignatureErrors Errors;
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public:
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RequirementSignature(GenericSignatureErrors errors = GenericSignatureErrors())
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: Errors(errors) {}
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RequirementSignature(ArrayRef<Requirement> requirements,
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ArrayRef<ProtocolTypeAlias> typeAliases,
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GenericSignatureErrors errors = GenericSignatureErrors())
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: Requirements(requirements), TypeAliases(typeAliases), Errors(errors) {}
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/// The requirements including any inherited protocols and conformances for
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/// associated types that are introduced in this protocol.
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///
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/// Requirements implied via any other protocol (e.g., inherited protocols
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/// of the inherited protocols) are not mentioned.
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///
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/// The conformance requirements listed here become entries in witness tables
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/// for conformances to this protocol.
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ArrayRef<Requirement> getRequirements() const {
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return Requirements;
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}
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ArrayRef<ProtocolTypeAlias> getTypeAliases() const {
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return TypeAliases;
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}
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GenericSignatureErrors getErrors() const {
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return Errors;
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}
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};
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} // end namespace swift
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#endif // SWIFT_AST_REQUIREMENT_SIGNATURE_H
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