1 files changed, 57 insertions, 0 deletions
diff --git a/antlr-3.4/runtime/Java/src/main/java/org/antlr/runtime/ParserRuleReturnScope.java b/antlr-3.4/runtime/Java/src/main/java/org/antlr/runtime/ParserRuleReturnScope.java
new file mode 100644
index 0000000..e3e38ce
--- /dev/null
+++ b/antlr-3.4/runtime/Java/src/main/java/org/antlr/runtime/ParserRuleReturnScope.java
@@ -0,0 +1,57 @@
+/*
+ [The "BSD license"]
+ Copyright (c) 2005-2009 Terence Parr
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+ 1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+ 3. The name of the author may not be used to endorse or promote products
+     derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.antlr.runtime;
+
+import org.antlr.runtime.tree.CommonTree;
+
+/** Rules that return more than a single value must return an object
+ *  containing all the values.  Besides the properties defined in
+ *  RuleLabelScope.predefinedRulePropertiesScope there may be user-defined
+ *  return values.  This class simply defines the minimum properties that
+ *  are always defined and methods to access the others that might be
+ *  available depending on output option such as template and tree.
+ *
+ *  Note text is not an actual property of the return value, it is computed
+ *  from start and stop using the input stream's toString() method.  I
+ *  could add a ctor to this so that we can pass in and store the input
+ *  stream, but I'm not sure we want to do that.  It would seem to be undefined
+ *  to get the .text property anyway if the rule matches tokens from multiple
+ *  input streams.
+ *
+ *  I do not use getters for fields of objects that are used simply to
+ *  group values such as this aggregate.  The getters/setters are there to
+ *  satisfy the superclass interface.
+ */
+public class ParserRuleReturnScope extends RuleReturnScope {
+	public Token start, stop;
+	public Object getStart() { return start; }
+	public Object getStop() { return stop; }
+
+	public Object tree; // only used when output=AST
+	public Object getTree() { return tree; }
+}