ir_reader: Slightly better error message when failing to read swizzles.

2010-04-28 13:16:31 -07:00
parent 92eb64cd33
commit bf783ecea6
1 changed files with 6 additions and 2 deletions
@@ -725,8 +725,12 @@ read_swizzle(_mesa_glsl_parse_state *st, s_list *list)
   if (rvalue == NULL)
      return NULL;

-   return ir_swizzle::create(rvalue, swiz->value(),
-			     rvalue->type->vector_elements);
+   ir_swizzle *ir = ir_swizzle::create(rvalue, swiz->value(),
+				       rvalue->type->vector_elements);
+   if (ir == NULL)
+      ir_read_error(st, list, "invalid swizzle");
+
+   return ir;
 }

 static ir_constant *