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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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57
dom/xslt/xpath/txPredicatedNodeTest.cpp Normal file
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */
#include "txExpr.h"
#include "txExprResult.h"
#include "txSingleNodeContext.h"
txPredicatedNodeTest::txPredicatedNodeTest(txNodeTest* aNodeTest,
Expr* aPredicate)
: mNodeTest(aNodeTest),
mPredicate(aPredicate)
{
NS_ASSERTION(!mPredicate->isSensitiveTo(Expr::NODESET_CONTEXT),
"predicate must not be context-nodeset-sensitive");
}
bool
txPredicatedNodeTest::matches(const txXPathNode& aNode,
txIMatchContext* aContext)
{
if (!mNodeTest->matches(aNode, aContext)) {
return false;
}
txSingleNodeContext context(aNode, aContext);
RefPtr<txAExprResult> res;
nsresult rv = mPredicate->evaluate(&context, getter_AddRefs(res));
NS_ENSURE_SUCCESS(rv, false);
return res->booleanValue();
}
double
txPredicatedNodeTest::getDefaultPriority()
{
return 0.5;
}
bool
txPredicatedNodeTest::isSensitiveTo(Expr::ContextSensitivity aContext)
{
return mNodeTest->isSensitiveTo(aContext) ||
mPredicate->isSensitiveTo(aContext);
}
#ifdef TX_TO_STRING
void
txPredicatedNodeTest::toString(nsAString& aDest)
{
mNodeTest->toString(aDest);
aDest.Append(char16_t('['));
mPredicate->toString(aDest);
aDest.Append(char16_t(']'));
}
#endif