From 240384569dc4fbc14619d25bfb5a6666b401204c Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop+git@gmail.com>
Date: Thu, 7 Oct 2010 17:10:27 +0000
Subject: [PATCH] added ElseNode, handling elsif and else correctly

git-svn-id: svn://anubis/fart/trunk@358 7f9b0f55-74a9-4bce-be96-3c2cd072584d
---
 parser/nodes.cc  | 9 ++++++++-
 parser/nodes.h   | 6 ++++++
 parser/parser.yy | 4 ++++
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/parser/nodes.cc b/parser/nodes.cc
index 4854770..2584bb9 100644
--- a/parser/nodes.cc
+++ b/parser/nodes.cc
@@ -157,8 +157,15 @@ NodeRef IfNode::evaluate()
     }
     else if ( ! m_elses.isNull() )
     {
-        eval->addChild(m_elses->evaluate());
+        return m_elses->evaluate();
     }
 
     return eval;
 }
+
+NodeRef ElseNode::evaluate()
+{
+    NodeRef eval = new EvaluatePropagateNode();
+    evaluateChildren(eval);
+    return eval;
+}
diff --git a/parser/nodes.h b/parser/nodes.h
index 53e0181..e0c865d 100644
--- a/parser/nodes.h
+++ b/parser/nodes.h
@@ -744,6 +744,12 @@ class IfNode : public Node
         NodeRef m_test_expr, m_elses;
 };
 
+class ElseNode : public Node
+{
+    public:
+        virtual NodeRef evaluate();
+};
+
 /* this class is only used to hold a set of items coming out of a class's
  * evaluate() from above. the evaluateChildren() top-level method will
  * propagate children of this class up to the level of their parent */
diff --git a/parser/parser.yy b/parser/parser.yy
index a1f8eec..6385174 100644
--- a/parser/parser.yy
+++ b/parser/parser.yy
@@ -431,8 +431,12 @@ if: IF LPAREN bool_expression RPAREN LCURLY general_items RCURLY if_more {
 
 if_more: /* empty */
        | ELSIF LPAREN bool_expression RPAREN LCURLY general_items RCURLY if_more {
+           $$ = new IfNode($3, $8);
+           $$->addChildren($6);
        }
        | ELSE LCURLY general_items RCURLY {
+           $$ = new ElseNode();
+           $$->addChildren($3);
        }
        ;
 %%