- ;; FIXME: Since currently *TYPE-SYSTEM-INITIALIZED* is not set
- ;; until many toplevel forms have run, this condition on
- ;; PROCLAIM (FTYPE ..) (and on PROCLAIM (TYPE ..), above) means
- ;; that valid PROCLAIMs in cold code could get lost. Probably
- ;; the cleanest way to deal with this would be to initialize
- ;; the type system completely in special cold init forms,
- ;; before any ordinary toplevel forms run. Failing that, we
- ;; could queue up PROCLAIMs to be done after the type system is
- ;; initialized. Failing that, we could at least issue a warning
- ;; when we have to ignore a PROCLAIM because the type system is
- ;; uninitialized.
- (when *type-system-initialized*
- (let ((type (specifier-type (first args))))
- (unless (csubtypep type (specifier-type 'function))
- (error "not a function type: ~S" (first args)))
- (dolist (name (rest args))
-
- ;; KLUDGE: Something like the commented-out TYPE/=
- ;; check here would be nice, but it has been
- ;; commented out because TYPE/= doesn't support
- ;; function types. It could probably be made to do
- ;; so, but it might take some time, since function
- ;; types involve values types, which aren't
- ;; supported, and since the SUBTYPEP operator for
- ;; FUNCTION types is rather broken, e.g.
- ;; (SUBTYPEP '(FUNCTION (T BOOLEAN) NIL)
- ;; '(FUNCTION (FIXNUM FIXNUM) NIL)) => T, T
- ;; -- WHN 20000229
- #|
- (when (eq (info :function :where-from name) :declared)
- (let ((old-type (info :function :type name)))
- (when (type/= type old-type)
- (style-warn
- "new FTYPE proclamation~@
- ~S~@
- for ~S does not match old FTYPE proclamation~@
- ~S"
- (list type name old-type)))))
- |#
-
- ;; Now references to this function shouldn't be warned
- ;; about as undefined, since even if we haven't seen a
- ;; definition yet, we know one is planned. (But if this
- ;; function name was already declared as a structure
- ;; accessor, then that was already been taken care of.)
- (unless (info :function :accessor-for name)
- (proclaim-as-function-name name)
- (note-name-defined name :function))
+ (if *type-system-initialized*
+ (let ((ctype (specifier-type (first args))))
+ (unless (csubtypep ctype (specifier-type 'function))
+ (error "not a function type: ~S" (first args)))
+ (dolist (name (rest args))
+ (with-single-package-locked-error
+ (:symbol name "globally declaring the ftype of ~A")
+ (when (eq (info :function :where-from name) :declared)
+ (let ((old-type (info :function :type name)))
+ (when (type/= ctype old-type)
+ ;; FIXME: changing to FTYPE-PROCLAMATION-MISMATCH
+ ;; broke late-proclaim.lisp.
+ (if (info :function :info name)
+ ;; Allow for tightening of known function types
+ (unless (csubtypep ctype old-type)
+ (cerror "Continue"
+ "~@<new FTYPE proclamation for known function ~S~@:_ ~S~@:_~
+ does not match its old FTYPE:~@:_ ~S~@:>"
+ name (type-specifier ctype) (type-specifier old-type)))
+ (#+sb-xc-host warn
+ #-sb-xc-host style-warn
+ "~@<new FTYPE proclamation for ~S~@:_ ~S~@:_~
+ does not match the old FTYPE proclamation:~@:_ ~S~@:>"
+ name (type-specifier ctype) (type-specifier old-type))))))
+ ;; Now references to this function shouldn't be warned
+ ;; about as undefined, since even if we haven't seen a
+ ;; definition yet, we know one is planned.
+ ;;
+ ;; Other consequences of we-know-you're-a-function-now
+ ;; are appropriate too, e.g. any MACRO-FUNCTION goes away.
+ (proclaim-as-fun-name name)
+ (note-name-defined name :function)