Treat casts of C constants as constants

diff --git a/codegen/valaccodebasemodule.vala b/codegen/valaccodebasemodule.vala
index 5be268c988c9fb499cb09d9d3af525a07f67f9c9..925d9b5e19418a2a2fbd27ad99194b31e0155fc8 100644 (file)
--- a/codegen/valaccodebasemodule.vala
+++ b/codegen/valaccodebasemodule.vala
@@ -1020,6 +1020,9 @@ internal class Vala.CCodeBaseModule : CCodeModule {
        public bool is_constant_ccode_expression (CCodeExpression cexpr) {
                if (cexpr is CCodeConstant) {
                        return true;
+               } else if (cexpr is CCodeCastExpression) {
+                       var ccast = (CCodeCastExpression) cexpr;
+                       return is_constant_ccode_expression (ccast.inner);
                } else if (cexpr is CCodeBinaryExpression) {
                        var cbinary = (CCodeBinaryExpression) cexpr;
                        return is_constant_ccode_expression (cbinary.left) && is_constant_ccode_expression (cbinary.right);