41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef frontend_FoldConstants_h
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#define frontend_FoldConstants_h
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#include "frontend/SyntaxParseHandler.h"
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namespace js {
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namespace frontend {
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// Perform constant folding on the given AST. For example, the program
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// `print(2 + 2)` would become `print(4)`.
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//
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// pnp is the address of a pointer variable that points to the root node of the
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// AST. On success, *pnp points to the root node of the new tree, which may be
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// the same node (unchanged or modified in place) or a new node.
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//
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// Usage:
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// pn = parser->statement();
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// if (!pn)
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// return false;
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// if (!FoldConstants(cx, &pn, parser))
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// return false;
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MOZ_MUST_USE bool
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FoldConstants(ExclusiveContext* cx, ParseNode** pnp, Parser<FullParseHandler>* parser);
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inline MOZ_MUST_USE bool
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FoldConstants(ExclusiveContext* cx, SyntaxParseHandler::Node* pnp,
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Parser<SyntaxParseHandler>* parser)
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{
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return true;
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}
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} /* namespace frontend */
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} /* namespace js */
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#endif /* frontend_FoldConstants_h */
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