From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- js/src/frontend/FoldConstants.h | 49 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 js/src/frontend/FoldConstants.h (limited to 'js/src/frontend/FoldConstants.h') diff --git a/js/src/frontend/FoldConstants.h b/js/src/frontend/FoldConstants.h new file mode 100644 index 0000000000..382f2196ff --- /dev/null +++ b/js/src/frontend/FoldConstants.h @@ -0,0 +1,49 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * vim: set ts=8 sts=2 et sw=2 tw=80: + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef frontend_FoldConstants_h +#define frontend_FoldConstants_h + +#include "frontend/SyntaxParseHandler.h" + +namespace js { +namespace frontend { + +class FullParseHandler; +template +class PerHandlerParser; + +// Perform constant folding on the given AST. For example, the program +// `print(2 + 2)` would become `print(4)`. +// +// pnp is the address of a pointer variable that points to the root node of the +// AST. On success, *pnp points to the root node of the new tree, which may be +// the same node (unchanged or modified in place) or a new node. +// +// Usage: +// pn = parser->statement(); +// if (!pn) { +// return false; +// } +// if (!FoldConstants(cx, parserAtoms, &pn, parser)) { +// return false; +// } +extern MOZ_MUST_USE bool FoldConstants(JSContext* cx, + ParserAtomsTable& parserAtoms, + ParseNode** pnp, + FullParseHandler* handler); + +inline MOZ_MUST_USE bool FoldConstants(JSContext* cx, + ParserAtomsTable& parserAtoms, + typename SyntaxParseHandler::Node* pnp, + SyntaxParseHandler* handler) { + return true; +} + +} /* namespace frontend */ +} /* namespace js */ + +#endif /* frontend_FoldConstants_h */ -- cgit v1.2.3