From 8400bc4d35fe7aa0ce605e4f4bb837227dfcacf9 Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Tue, 23 Mar 2010 12:28:28 -0700
Subject: [PATCH] Add is_error and is_void type queries

---
 glsl_types.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/glsl_types.h b/glsl_types.h
index 45037b37869..57f339a9a6f 100644
--- a/glsl_types.h
+++ b/glsl_types.h
@@ -166,6 +166,22 @@ struct glsl_type {
       /* GLSL only has float matrices. */
       return (matrix_rows > 0) && (base_type == GLSL_TYPE_FLOAT);
    }
+
+   /**
+    * Query whether or not a type is the void type singleton.
+    */
+   bool is_void() const
+   {
+      return base_type == GLSL_TYPE_VOID;
+   }
+
+   /**
+    * Query whether or not a type is the error type singleton.
+    */
+   bool is_error() const
+   {
+      return base_type == GLSL_TYPE_ERROR;
+   }
 };
 
 struct glsl_struct_field {
-- 
2.30.2