Bug 357345: Add more optimizations to the XPath optimizer. r/sr=peterv

2025-02-03 20:49:27 +00:00 · 2006-11-10 20:44:08 +00:00 · 2006-11-10 20:44:08 +00:00 · da07fc2622
commit da07fc2622
parent 1db17877e6
1 changed files with 109 additions and 0 deletions
--- a/content/xslt/src/xpath/txUnionNodeTest.cpp
+++ b/content/xslt/src/xpath/txUnionNodeTest.cpp
@ -0,0 +1,109 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is TransforMiiX XSLT processor.
+ *
+ * The Initial Developer of the Original Code is Mozilla Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2006
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *  Jonas Sicking <jonas@sicking.cc>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "txExpr.h"
+#include "txExprResult.h"
+#include "txSingleNodeContext.h"
+
+txUnionNodeTest::~txUnionNodeTest()
+{
+    PRUint32 i, len = mNodeTests.Length();
+    for (i = 0; i < len; ++i) {
+        delete mNodeTests[i];
+    }
+}
+
+nsresult
+txUnionNodeTest::addNodeTest(txNodeTest* aNodeTest)
+{
+    if (!mNodeTests.AppendElement(aNodeTest)) {
+      delete aNodeTest;
+      return NS_ERROR_OUT_OF_MEMORY;
+    }
+
+    return NS_OK;
+}
+
+PRBool
+txUnionNodeTest::matches(const txXPathNode& aNode,
+                         txIMatchContext* aContext)
+{
+    PRUint32 i, len = mNodeTests.Length();
+    for (i = 0; i < len; ++i) {
+        if (mNodeTests[i]->matches(aNode, aContext)) {
+            return PR_TRUE;
+        }
+    }
+
+    return PR_FALSE;
+}
+
+double
+txUnionNodeTest::getDefaultPriority()
+{
+    NS_ERROR("Don't call getDefaultPriority on txUnionPattern");
+    return Double::NaN;
+}
+
+PRBool
+txUnionNodeTest::isSensitiveTo(Expr::ContextSensitivity aContext)
+{
+    PRUint32 i, len = mNodeTests.Length();
+    for (i = 0; i < len; ++i) {
+        if (mNodeTests[i]->isSensitiveTo(aContext)) {
+            return PR_TRUE;
+        }
+    }
+
+    return PR_FALSE;
+}
+
+#ifdef TX_TO_STRING
+void
+txUnionNodeTest::toString(nsAString& aDest)
+{
+    aDest.AppendLiteral("(");
+    for (PRUint32 i = 0; i < mNodeTests.Length(); ++i) {
+        if (i != 0) {
+            aDest.AppendLiteral(" | ");
+        }
+        mNodeTests[i]->toString(aDest);
+    }
+    aDest.AppendLiteral(")");
+}
+#endif