glsl: added slang_oper_num_children() helper

diff --git a/src/mesa/shader/slang/slang_compile_operation.h b/src/mesa/shader/slang/slang_compile_operation.h
index c69078b..06b452d 100644 (file)
--- a/src/mesa/shader/slang/slang_compile_operation.h
+++ b/src/mesa/shader/slang/slang_compile_operation.h
@@ -167,6 +167,13 @@ _slang_operation_swap(slang_operation *oper0, slang_operation *oper1);
 extern void
 slang_operation_add_children(slang_operation *oper, GLuint num_children);
 
+
+static INLINE GLuint
+slang_oper_num_children(const slang_operation *oper)
+{
+   return oper->num_children;
+}
+
 static INLINE slang_operation *
 slang_oper_child(slang_operation *oper, GLuint child)
 {