# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1304199369 -7200
# Node ID ef635f7f79eaf65fa2382fbe9ad34e89dd4275a9
# Parent  fa58e72b573abdc52c22e6c59700296673803f53
Added support for "raise" without arguments.

diff -r fa58e72b573a -r ef635f7f79ea micropython/ast.py
--- a/micropython/ast.py	Tue Apr 26 19:34:07 2011 +0200
+++ b/micropython/ast.py	Sat Apr 30 23:36:09 2011 +0200
@@ -827,20 +827,25 @@
         self._visitPrint(node, "_printnl")
 
     def visitRaise(self, node):
-        # NOTE: expr1 only => instance provided
-        self.dispatch(node.expr1)
+
+        if node.expr1 is not None:
+
+            # NOTE: expr1 only => instance provided
 
-        if node.expr2 is not None:
-            temp = self.optimiser.optimise_temp_storage()
+            self.dispatch(node.expr1)
+
+            if node.expr2 is not None:
+                temp = self.optimiser.optimise_temp_storage()
 
-            self.dispatch(node.expr2)
-            temp_arg = self.optimiser.optimise_temp_storage()
+                self.dispatch(node.expr2)
+                temp_arg = self.optimiser.optimise_temp_storage()
+
+                self._generateInvocation(temp, (temp_arg,))
 
-            self._generateInvocation(temp, (temp_arg,))
+                self.discard_temp(temp_arg)
 
-            self.discard_temp(temp_arg)
+            self.new_op(StoreException())
 
-        self.new_op(StoreException())
         self.new_op(RaiseException())
 
     def visitReturn(self, node):