- (unless (c-type-equal-p (c-type-subtype type) c-type-void)
- (error "Method return type ~A must be `void'" (c-type-subtype type)))
- (unless (argument-lists-compatible-p (c-function-arguments msgtype)
- (c-function-arguments type))
- (error "Method arguments ~A don't match message ~A" type msgtype))))