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56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
//===--- UnknownSyntax.h - Swift Unknown Syntax 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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#ifndef SWIFT_SYNTAX_UNKNOWNSYNTAX_H
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#define SWIFT_SYNTAX_UNKNOWNSYNTAX_H
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#include "swift/Syntax/SyntaxData.h"
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#include "swift/Syntax/Syntax.h"
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#include <vector>
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namespace swift {
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namespace syntax {
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#pragma mark unknown-syntax API
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/// A chunk of "unknown" syntax.
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///
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/// Effectively wraps a tree of RawSyntax.
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///
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/// This should not be vended by SyntaxFactory.
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class UnknownSyntax : public Syntax {
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friend struct SyntaxFactory;
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friend class Syntax;
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virtual void validate() const override;
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public:
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UnknownSyntax(const RC<SyntaxData> Root, const SyntaxData *Data)
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: Syntax(Root, Data) {}
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/// Get the number of child nodes in this piece of syntax, not including
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/// tokens.
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size_t getNumChildren() const;
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/// Get the Nth child of this piece of syntax.
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Syntax getChild(const size_t N) const;
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static bool classof(const Syntax *S) {
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return S->isUnknown();
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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_UNKNOWNSYNTAX_H
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