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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/txRootExpr.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/xslt/xpath/txRootExpr.cpp')
-rw-r--r--dom/xslt/xpath/txRootExpr.cpp43
1 files changed, 43 insertions, 0 deletions
diff --git a/dom/xslt/xpath/txRootExpr.cpp b/dom/xslt/xpath/txRootExpr.cpp
new file mode 100644
index 000000000..f6ef6abcb
--- /dev/null
+++ b/dom/xslt/xpath/txRootExpr.cpp
@@ -0,0 +1,43 @@
+/* -*- 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 "txNodeSet.h"
+#include "txIXPathContext.h"
+#include "txXPathTreeWalker.h"
+
+/**
+ * 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)
+{
+ txXPathTreeWalker walker(aContext->getContextNode());
+ walker.moveToRoot();
+
+ return aContext->recycler()->getNodeSet(walker.getCurrentPosition(),
+ aResult);
+}
+
+TX_IMPL_EXPR_STUBS_0(RootExpr, NODESET_RESULT)
+
+bool
+RootExpr::isSensitiveTo(ContextSensitivity aContext)
+{
+ return !!(aContext & NODE_CONTEXT);
+}
+
+#ifdef TX_TO_STRING
+void
+RootExpr::toString(nsAString& dest)
+{
+ if (mSerialize)
+ dest.Append(char16_t('/'));
+}
+#endif