js/src/frontend/FoldConstants.h@6474c204b198 (annotated)
js/src/frontend/FoldConstants.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| michael@0 | 2 | * vim: set ts=8 sts=4 et sw=4 tw=99: |
| michael@0 | 3 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef frontend_FoldConstants_h |
| michael@0 | 8 | #define frontend_FoldConstants_h |
| michael@0 | 9 | |
| michael@0 | 10 | #include "frontend/SyntaxParseHandler.h" |
| michael@0 | 11 | |
| michael@0 | 12 | namespace js { |
| michael@0 | 13 | namespace frontend { |
| michael@0 | 14 | |
| michael@0 | 15 | // Perform constant folding on the given AST. For example, the program |
| michael@0 | 16 | // `print(2 + 2)` would become `print(4)`. |
| michael@0 | 17 | // |
| michael@0 | 18 | // pnp is the address of a pointer variable that points to the root node of the |
| michael@0 | 19 | // AST. On success, *pnp points to the root node of the new tree, which may be |
| michael@0 | 20 | // the same node (unchanged or modified in place) or a new node. |
| michael@0 | 21 | // |
| michael@0 | 22 | // Usage: |
| michael@0 | 23 | // pn = parser->statement(); |
| michael@0 | 24 | // if (!pn) |
| michael@0 | 25 | // return false; |
| michael@0 | 26 | // if (!FoldConstants(cx, &pn, parser)) |
| michael@0 | 27 | // return false; |
| michael@0 | 28 | bool |
| michael@0 | 29 | FoldConstants(ExclusiveContext *cx, ParseNode **pnp, Parser<FullParseHandler> *parser); |
| michael@0 | 30 | |
| michael@0 | 31 | inline bool |
| michael@0 | 32 | FoldConstants(ExclusiveContext *cx, SyntaxParseHandler::Node *pnp, |
| michael@0 | 33 | Parser<SyntaxParseHandler> *parser) |
| michael@0 | 34 | { |
| michael@0 | 35 | return true; |
| michael@0 | 36 | } |
| michael@0 | 37 | |
| michael@0 | 38 | } /* namespace frontend */ |
| michael@0 | 39 | } /* namespace js */ |
| michael@0 | 40 | |
| michael@0 | 41 | #endif /* frontend_FoldConstants_h */ |
