michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "txExpr.h"
michael@0: #include "txExprResult.h"
michael@0: #include "txSingleNodeContext.h"
michael@0: 
michael@0: txPredicatedNodeTest::txPredicatedNodeTest(txNodeTest* aNodeTest,
michael@0:                                            Expr* aPredicate)
michael@0:     : mNodeTest(aNodeTest),
michael@0:       mPredicate(aPredicate)
michael@0: {
michael@0:     NS_ASSERTION(!mPredicate->isSensitiveTo(Expr::NODESET_CONTEXT),
michael@0:                  "predicate must not be context-nodeset-sensitive");
michael@0: }
michael@0: 
michael@0: bool
michael@0: txPredicatedNodeTest::matches(const txXPathNode& aNode,
michael@0:                               txIMatchContext* aContext)
michael@0: {
michael@0:     if (!mNodeTest->matches(aNode, aContext)) {
michael@0:         return false;
michael@0:     }
michael@0: 
michael@0:     txSingleNodeContext context(aNode, aContext);
michael@0:     nsRefPtr<txAExprResult> res;
michael@0:     nsresult rv = mPredicate->evaluate(&context, getter_AddRefs(res));
michael@0:     NS_ENSURE_SUCCESS(rv, false);
michael@0: 
michael@0:     return res->booleanValue();
michael@0: }
michael@0: 
michael@0: double
michael@0: txPredicatedNodeTest::getDefaultPriority()
michael@0: {
michael@0:     return 0.5;
michael@0: }
michael@0: 
michael@0: bool
michael@0: txPredicatedNodeTest::isSensitiveTo(Expr::ContextSensitivity aContext)
michael@0: {
michael@0:     return mNodeTest->isSensitiveTo(aContext) ||
michael@0:            mPredicate->isSensitiveTo(aContext);
michael@0: }
michael@0: 
michael@0: #ifdef TX_TO_STRING
michael@0: void
michael@0: txPredicatedNodeTest::toString(nsAString& aDest)
michael@0: {
michael@0:     mNodeTest->toString(aDest);
michael@0:     aDest.Append(char16_t('['));
michael@0:     mPredicate->toString(aDest);
michael@0:     aDest.Append(char16_t(']'));
michael@0: }
michael@0: #endif