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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/xslt/xpath/txUnionExpr.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/xslt/xpath/txUnionExpr.cpp')
-rw-r--r--dom/xslt/xpath/txUnionExpr.cpp94
1 files changed, 94 insertions, 0 deletions
diff --git a/dom/xslt/xpath/txUnionExpr.cpp b/dom/xslt/xpath/txUnionExpr.cpp
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+++ b/dom/xslt/xpath/txUnionExpr.cpp
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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 "txIXPathContext.h"
+#include "txNodeSet.h"
+
+ //-------------/
+ //- UnionExpr -/
+//-------------/
+
+ //-----------------------------/
+ //- Virtual methods from Expr -/
+//-----------------------------/
+
+/**
+ * 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
+UnionExpr::evaluate(txIEvalContext* aContext, txAExprResult** aResult)
+{
+ *aResult = nullptr;
+ RefPtr<txNodeSet> nodes;
+ nsresult rv = aContext->recycler()->getNodeSet(getter_AddRefs(nodes));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ uint32_t i, len = mExpressions.Length();
+ for (i = 0; i < len; ++i) {
+ RefPtr<txAExprResult> exprResult;
+ rv = mExpressions[i]->evaluate(aContext, getter_AddRefs(exprResult));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (exprResult->getResultType() != txAExprResult::NODESET) {
+ //XXX ErrorReport: report nonnodeset error
+ return NS_ERROR_XSLT_NODESET_EXPECTED;
+ }
+
+ RefPtr<txNodeSet> resultSet, ownedSet;
+ resultSet = static_cast<txNodeSet*>
+ (static_cast<txAExprResult*>(exprResult));
+ exprResult = nullptr;
+ rv = aContext->recycler()->
+ getNonSharedNodeSet(resultSet, getter_AddRefs(ownedSet));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = nodes->addAndTransfer(ownedSet);
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+
+ *aResult = nodes;
+ NS_ADDREF(*aResult);
+
+ return NS_OK;
+} //-- evaluate
+
+Expr::ExprType
+UnionExpr::getType()
+{
+ return UNION_EXPR;
+}
+
+TX_IMPL_EXPR_STUBS_LIST(UnionExpr, NODESET_RESULT, mExpressions)
+
+bool
+UnionExpr::isSensitiveTo(ContextSensitivity aContext)
+{
+ uint32_t i, len = mExpressions.Length();
+ for (i = 0; i < len; ++i) {
+ if (mExpressions[i]->isSensitiveTo(aContext)) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+#ifdef TX_TO_STRING
+void
+UnionExpr::toString(nsAString& dest)
+{
+ uint32_t i;
+ for (i = 0; i < mExpressions.Length(); ++i) {
+ if (i > 0)
+ dest.AppendLiteral(" | ");
+ mExpressions[i]->toString(dest);
+ }
+}
+#endif