} // ctor public override DynamicMetaObject FallbackSetMember(DynamicMetaObject target, DynamicMetaObject value, DynamicMetaObject errorSuggestion) { // defer the target if (!target.HasValue) { return(Defer(target)); } if (target.Value == null) { return(errorSuggestion ?? new DynamicMetaObject( ThrowExpression(String.Format(Resources.rsMemberNotResolved, target.LimitType.Name, Name), ReturnType), target.Restrictions.Merge(BindingRestrictions.GetInstanceRestriction(target.Expression, null)) )); } else { Expression expr; // restrictions var restrictions = target.Restrictions.Merge(BindingRestrictions.GetTypeRestriction(target.Expression, target.LimitType)); // try to bind the member switch (LuaEmit.TrySetMember(target.Expression, target.LimitType, Name, IgnoreCase, (setType) => LuaEmit.ConvertWithRuntime(Lua, value.Expression, value.LimitType, setType), out expr)) { case LuaTrySetMemberReturn.None: return(errorSuggestion ?? new DynamicMetaObject(ThrowExpression(LuaEmitException.GetMessageText(LuaEmitException.MemberNotFound, target.LimitType.Name, Name), ReturnType), restrictions)); case LuaTrySetMemberReturn.NotWritable: return(errorSuggestion ?? new DynamicMetaObject(ThrowExpression(LuaEmitException.GetMessageText(LuaEmitException.CanNotWriteMember, target.LimitType.Name, Name), ReturnType), restrictions)); case LuaTrySetMemberReturn.ValidExpression: return(new DynamicMetaObject(Lua.EnsureType(expr, ReturnType), restrictions.Merge(Lua.GetSimpleRestriction(value)))); default: throw new ArgumentException("return of TryGetMember."); } } } // func FallbackSetMember