1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/xslt/xpath/txXPathOptimizer.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,31 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef txXPathOptimizer_h__
1.10 +#define txXPathOptimizer_h__
1.11 +
1.12 +#include "txCore.h"
1.13 +
1.14 +class Expr;
1.15 +
1.16 +class txXPathOptimizer
1.17 +{
1.18 +public:
1.19 + /**
1.20 + * Optimize the given expression.
1.21 + * @param aInExpr Expression to optimize.
1.22 + * @param aOutExpr Resulting expression, null if optimization didn't
1.23 + * result in a new expression.
1.24 + */
1.25 + nsresult optimize(Expr* aInExpr, Expr** aOutExpr);
1.26 +
1.27 +private:
1.28 + // Helper methods for optimizing specific classes
1.29 + nsresult optimizeStep(Expr* aInExpr, Expr** aOutExpr);
1.30 + nsresult optimizePath(Expr* aInExpr, Expr** aOutExpr);
1.31 + nsresult optimizeUnion(Expr* aInExpr, Expr** aOutExpr);
1.32 +};
1.33 +
1.34 +#endif
