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0780c529c4
It better matches with SwiftSyntax model. Using TrailingObjects reduces the number of heap allocation which gains 18% performance improvement.
92 lines
2.4 KiB
C++
92 lines
2.4 KiB
C++
//===----------- TokenSyntax.h - Swift Token Interface ----------*- 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 contains the interface for a `TokenSyntax`, which is a token
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// that includes full-fidelity leading and trailing trivia.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_SYNTAX_TOKENSYNTAX_H
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#define SWIFT_SYNTAX_TOKENSYNTAX_H
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#include "swift/Syntax/RawSyntax.h"
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#include "swift/Syntax/References.h"
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#include "swift/Syntax/Syntax.h"
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#include "swift/Syntax/TokenKinds.h"
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#include "swift/Syntax/Trivia.h"
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namespace swift {
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namespace syntax {
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class TokenSyntax final : public Syntax {
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protected:
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void validate() const {
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assert(getRaw()->isToken());
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}
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public:
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TokenSyntax(const RC<SyntaxData> Root, const SyntaxData *Data)
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: Syntax(Root, Data) {}
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static TokenSyntax missingToken(const tok Kind, OwnedString Text) {
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return make<TokenSyntax>(RawSyntax::missing(Kind, Text));
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}
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Trivia getLeadingTrivia() const {
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return Trivia { getRaw()->getLeadingTrivia().vec() };
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}
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Trivia getTrailingTrivia() const {
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return Trivia { getRaw()->getTrailingTrivia().vec() };
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}
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TokenSyntax withLeadingTrivia(const Trivia &Trivia) const {
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auto NewRaw = getRaw()->withLeadingTrivia(Trivia.Pieces);
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return Data->replaceSelf<TokenSyntax>(NewRaw);
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}
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TokenSyntax withTrailingTrivia(const Trivia &Trivia) const {
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auto NewRaw = getRaw()->withTrailingTrivia(Trivia.Pieces);
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return Data->replaceSelf<TokenSyntax>(NewRaw);
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}
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/* TODO: If we really need them.
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bool isKeyword() const;
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bool isPunctuation() const;
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bool isOperator() const;
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bool isLiteral() const;
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*/
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bool isMissing() const {
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return getRaw()->isMissing();
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}
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tok getTokenKind() const {
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return getRaw()->getTokenKind();
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}
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StringRef getText() const {
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return getRaw()->getTokenText();
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}
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static bool classof(const Syntax *S) {
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return S->isToken();
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}
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};
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} // end namespace syntax
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} // end namespace swift
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#endif // SWIFT_SYNTAX_TOKENSYNTAX_H
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