public override void EmitCheck(CodeGen cg)
{
Label initialized = cg.DefineLabel();
cg.Emit(OpCodes.Dup);
cg.Emit(OpCodes.Isinst, typeof(Uninitialized));
cg.Emit(OpCodes.Brfalse, initialized);
cg.Emit(OpCodes.Pop);
global.EmitGet(cg);
global.EmitCheck(cg);
cg.MarkLabel(initialized);
}