sicking%bigfoot.com 3a8ac80259 Bug 205703: Refcount Expr-results, to avoid cloning, and recycle them, to avoid memorymanagement.
r=Pike sr=peterv


git-svn-id: svn://10.0.0.236/trunk@143775 18797224-902f-48f8-a5cc-f745e15eee43
2003-06-16 22:31:20 +00:00

68 lines
2.1 KiB
C++

/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is TransforMiiX XSLT processor.
*
* The Initial Developer of the Original Code is The MITRE Corporation.
* Portions created by MITRE are Copyright (C) 1999 The MITRE Corporation.
*
* Portions created by Keith Visco as a Non MITRE employee,
* (C) 1999 Keith Visco. All Rights Reserved.
*
* Contributor(s):
* Keith Visco, kvisco@ziplink.net
* -- original author.
*
*/
#include "Expr.h"
#include "NodeSet.h"
#include "txIXPathContext.h"
/**
* Creates a new RootExpr
* @param aSerialize should this RootExpr be serialized
*/
RootExpr::RootExpr(MBool aSerialize) {
mSerialize = aSerialize;
}
/**
* Evaluates this Expr based on the given context node and processor state
* @param context the context node for evaluation of this Expr
* @param ps the ContextState containing the stack information needed
* for evaluation
* @return the result of the evaluation
**/
nsresult
RootExpr::evaluate(txIEvalContext* aContext, txAExprResult** aResult)
{
Node* context = aContext->getContextNode();
if (context->getNodeType() != Node::DOCUMENT_NODE) {
context = context->getOwnerDocument();
}
return aContext->recycler()->getNodeSet(context, aResult);
} //-- evaluate
/**
* Returns the String representation of this Expr.
* @param dest the String to use when creating the String
* representation. The String representation will be appended to
* any data in the destination String, to allow cascading calls to
* other #toString() methods for Expressions.
* @return the String representation of this Expr.
**/
void RootExpr::toString(nsAString& dest) {
if (mSerialize)
dest.Append(PRUnichar('/'));
} //-- toString