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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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");
}
nsresult txPredicatedNodeTest::matches(const txXPathNode& aNode,
txIMatchContext* aContext,
bool& aMatched) {
nsresult rv = mNodeTest->matches(aNode, aContext, aMatched);
NS_ENSURE_SUCCESS(rv, rv);
if (!aMatched) {
return NS_OK;
}
txSingleNodeContext context(aNode, aContext);
RefPtr<txAExprResult> res;
rv = mPredicate->evaluate(&context, getter_AddRefs(res));
NS_ENSURE_SUCCESS(rv, rv);
aMatched = res->booleanValue();
return NS_OK;
}
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
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