dom/xslt/xpath/txXPathOptimizer.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #ifndef txXPathOptimizer_h__
michael@0 7 #define txXPathOptimizer_h__
michael@0 8
michael@0 9 #include "txCore.h"
michael@0 10
michael@0 11 class Expr;
michael@0 12
michael@0 13 class txXPathOptimizer
michael@0 14 {
michael@0 15 public:
michael@0 16 /**
michael@0 17 * Optimize the given expression.
michael@0 18 * @param aInExpr Expression to optimize.
michael@0 19 * @param aOutExpr Resulting expression, null if optimization didn't
michael@0 20 * result in a new expression.
michael@0 21 */
michael@0 22 nsresult optimize(Expr* aInExpr, Expr** aOutExpr);
michael@0 23
michael@0 24 private:
michael@0 25 // Helper methods for optimizing specific classes
michael@0 26 nsresult optimizeStep(Expr* aInExpr, Expr** aOutExpr);
michael@0 27 nsresult optimizePath(Expr* aInExpr, Expr** aOutExpr);
michael@0 28 nsresult optimizeUnion(Expr* aInExpr, Expr** aOutExpr);
michael@0 29 };
michael@0 30
michael@0 31 #endif

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