(in-package "SB!C")
-(file-comment
- "$Header$")
-
-;;; !COLD-INIT calls this twice to initialize the cookies, once before
-;;; any toplevel forms are executed, then again to undo any lingering
-;;; effects of toplevel DECLAIMs.
-(!begin-collecting-cold-init-forms)
-(!cold-init-forms
- (setf *default-cookie*
- (make-cookie :safety 1
- :speed 1
- :space 1
- :cspeed 1
- :brevity 1
- ;; Note: CMU CL had a default of 2 for DEBUG and 1 for all
- ;; the other qualities. SBCL uses a default of 1 for every
- ;; quality, because the ANSI documentation for the
- ;; OPTIMIZE declaration says that 1 is "the neutral
- ;; value", and it seems natural for the neutral value to
- ;; be the default.
- :debug 1))
- (setf *default-interface-cookie*
- (make-cookie)))
-(!defun-from-collected-cold-init-forms !set-sane-cookie-defaults)
-
;;; A list of UNDEFINED-WARNING structures representing references to unknown
;;; stuff which came up in a compilation unit.
(defvar *undefined-warnings*)
(declaim (list *undefined-warnings*))
-;;; Check that Name is a valid function name, returning the name if OK, and
-;;; doing an error if not. In addition to checking for basic well-formedness,
-;;; we also check that symbol names are not NIL or the name of a special form.
-(defun check-function-name (name)
- (typecase name
- (list
- (unless (and (consp name) (consp (cdr name))
- (null (cddr name)) (eq (car name) 'setf)
- (symbolp (cadr name)))
- (compiler-error "illegal function name: ~S" name))
- name)
- (symbol
- (when (eq (info :function :kind name) :special-form)
- (compiler-error "Special form is an illegal function name: ~S" name))
- name)
- (t
- (compiler-error "illegal function name: ~S" name))))
-
-;;; Called to do something about SETF functions that overlap with SETF
-;;; macros. Perhaps we should interact with the user to see whether
-;;; the macro should be blown away, but for now just give a warning.
-;;; Due to the weak semantics of the (SETF FUNCTION) name, we can't
-;;; assume that they aren't just naming a function (SETF FOO) for the
-;;; heck of it. NAME is already known to be well-formed.
-(defun note-if-setf-function-and-macro (name)
- (when (consp name)
- (when (or (info :setf :inverse name)
- (info :setf :expander name))
- (compiler-style-warning
- "defining as a SETF function a name that already has a SETF macro:~
- ~% ~S"
- name)))
- (values))
-
-;;; Look up some symbols in *FREE-VARIABLES*, returning the var
+;;; Look up some symbols in *FREE-VARS*, returning the var
;;; structures for any which exist. If any of the names aren't
;;; symbols, we complain.
(declaim (ftype (function (list) list) get-old-vars))
(collect ((vars))
(dolist (name names (vars))
(unless (symbolp name)
- (compiler-error "The name ~S is not a symbol." name))
- (let ((old (gethash name *free-variables*)))
- (when old (vars old))))))
+ (compiler-error "The name ~S is not a symbol." name))
+ (let ((old (gethash name *free-vars*)))
+ (when old (vars old))))))
-;;; Return a new cookie containing the policy information represented
+;;; Return a new POLICY containing the policy information represented
;;; by the optimize declaration SPEC. Any parameters not specified are
-;;; defaulted from COOKIE.
-(declaim (ftype (function (list cookie) cookie) process-optimize-declaration))
-(defun process-optimize-declaration (spec cookie)
- (let ((res (copy-cookie cookie)))
- (dolist (quality (cdr spec))
- (let ((quality (if (atom quality) (list quality 3) quality)))
- (if (and (consp (cdr quality)) (null (cddr quality))
- (typep (second quality) 'real) (<= 0 (second quality) 3))
- (let ((value (rational (second quality))))
- (case (first quality)
- (speed (setf (cookie-speed res) value))
- (space (setf (cookie-space res) value))
- (safety (setf (cookie-safety res) value))
- (compilation-speed (setf (cookie-cspeed res) value))
- ;; FIXME: BREVITY is an undocumented name for it,
- ;; should go away. And INHIBIT-WARNINGS is a
- ;; misleading name for it. Perhaps BREVITY would be
- ;; better. But the ideal name would have connotations
- ;; of suppressing only optimization-related notes,
- ;; which I think is the behavior. Perhaps
- ;; INHIBIT-NOTES?
- ((inhibit-warnings brevity) (setf (cookie-brevity res) value))
- ((debug-info debug) (setf (cookie-debug res) value))
- (t
- (compiler-warning "unknown optimization quality ~S in ~S"
- (car quality) spec))))
- (compiler-warning
- "malformed optimization quality specifier ~S in ~S"
- quality spec))))
- res))
+;;; defaulted from the POLICY argument.
+(declaim (ftype (function (list policy) policy) process-optimize-decl))
+(defun process-optimize-decl (spec policy)
+ (let ((result nil))
+ ;; Add new entries from SPEC.
+ (dolist (q-and-v-or-just-q (cdr spec))
+ (multiple-value-bind (quality raw-value)
+ (if (atom q-and-v-or-just-q)
+ (values q-and-v-or-just-q 3)
+ (destructuring-bind (quality raw-value) q-and-v-or-just-q
+ (values quality raw-value)))
+ (cond ((not (policy-quality-name-p quality))
+ (or (policy-quality-deprecation-warning quality)
+ (compiler-warn
+ "~@<Ignoring unknown optimization quality ~S in:~_ ~S~:>"
+ quality spec)))
+ ((not (typep raw-value 'policy-quality))
+ (compiler-warn "~@<Ignoring bad optimization value ~S in:~_ ~S~:>"
+ raw-value spec))
+ (t
+ ;; we can't do this yet, because CLOS macros expand
+ ;; into code containing INHIBIT-WARNINGS.
+ #+nil
+ (when (eql quality 'sb!ext:inhibit-warnings)
+ (compiler-style-warn "~S is deprecated: use ~S instead"
+ quality 'sb!ext:muffle-conditions))
+ (push (cons quality raw-value)
+ result)))))
+ ;; Add any nonredundant entries from old POLICY.
+ (dolist (old-entry policy)
+ (unless (assq (car old-entry) result)
+ (push old-entry result)))
+ ;; Voila.
+ (sort-policy result)))
+
+(declaim (ftype (function (list list) list)
+ process-handle-conditions-decl))
+(defun process-handle-conditions-decl (spec list)
+ (let ((new (copy-alist list)))
+ (dolist (clause (cdr spec))
+ (destructuring-bind (typespec restart-name) clause
+ (let ((ospec (rassoc restart-name new :test #'eq)))
+ (if ospec
+ (setf (car ospec)
+ (type-specifier
+ (type-union (specifier-type (car ospec))
+ (specifier-type typespec))))
+ (push (cons (type-specifier (specifier-type typespec))
+ restart-name)
+ new)))))
+ new))
+(declaim (ftype (function (list list) list)
+ process-muffle-conditions-decl))
+(defun process-muffle-conditions-decl (spec list)
+ (process-handle-conditions-decl
+ (cons 'handle-conditions
+ (mapcar (lambda (x) (list x 'muffle-warning)) (cdr spec)))
+ list))
+
+(declaim (ftype (function (list list) list)
+ process-unhandle-conditions-decl))
+(defun process-unhandle-conditions-decl (spec list)
+ (let ((new (copy-alist list)))
+ (dolist (clause (cdr spec))
+ (destructuring-bind (typespec restart-name) clause
+ (let ((ospec (rassoc restart-name new :test #'eq)))
+ (if ospec
+ (let ((type-specifier
+ (type-specifier
+ (type-intersection
+ (specifier-type (car ospec))
+ (specifier-type `(not ,typespec))))))
+ (if type-specifier
+ (setf (car ospec) type-specifier)
+ (setq new
+ (delete restart-name new :test #'eq :key #'cdr))))
+ ;; do nothing?
+ nil))))
+ new))
+(declaim (ftype (function (list list) list)
+ process-unmuffle-conditions-decl))
+(defun process-unmuffle-conditions-decl (spec list)
+ (process-unhandle-conditions-decl
+ (cons 'unhandle-conditions
+ (mapcar (lambda (x) (list x 'muffle-warning)) (cdr spec)))
+ list))
-(defun sb!xc:proclaim (form)
- (unless (consp form)
- (error "malformed PROCLAIM spec: ~S" form))
- (let ((kind (first form))
- (args (rest form)))
+(declaim (ftype (function (list list) list)
+ process-package-lock-decl))
+(defun process-package-lock-decl (spec old)
+ (let ((decl (car spec))
+ (list (cdr spec)))
+ (ecase decl
+ (disable-package-locks
+ (union old list :test #'equal))
+ (enable-package-locks
+ (set-difference old list :test #'equal)))))
+
+;;; ANSI defines the declaration (FOO X Y) to be equivalent to
+;;; (TYPE FOO X Y) when FOO is a type specifier. This function
+;;; implements that by converting (FOO X Y) to (TYPE FOO X Y).
+(defun canonized-decl-spec (decl-spec)
+ (let ((id (first decl-spec)))
+ (let ((id-is-type (if (symbolp id)
+ (info :type :kind id)
+ ;; A cons might not be a valid type specifier,
+ ;; but it can't be a declaration either.
+ (or (consp id)
+ (typep id 'class))))
+ (id-is-declared-decl (info :declaration :recognized id)))
+ ;; FIXME: Checking ID-IS-DECLARED is probably useless these days,
+ ;; since we refuse to use the same symbol as both a type name and
+ ;; recognized declaration name.
+ (cond ((and id-is-type id-is-declared-decl)
+ (compiler-error
+ "ambiguous declaration ~S:~% ~
+ ~S was declared as a DECLARATION, but is also a type name."
+ decl-spec id))
+ (id-is-type
+ (cons 'type decl-spec))
+ (t
+ decl-spec)))))
+
+(defvar *queued-proclaims*) ; initialized in !COLD-INIT-FORMS
+
+(!begin-collecting-cold-init-forms)
+(!cold-init-forms (setf *queued-proclaims* nil))
+(!defun-from-collected-cold-init-forms !early-proclaim-cold-init)
+
+(defun sb!xc:proclaim (raw-form)
+ #+sb-xc (/show0 "entering PROCLAIM, RAW-FORM=..")
+ #+sb-xc (/hexstr raw-form)
+ (let* ((form (canonized-decl-spec raw-form))
+ (kind (first form))
+ (args (rest form)))
(case kind
- (special
+ ((special global)
+ (flet ((make-special (name old)
+ (unless (member old '(:special :unknown))
+ (error "Cannot proclaim a ~(~A~) variable special: ~S" old name))
+ (with-single-package-locked-error
+ (:symbol name "globally declaring ~A special")
+ (setf (info :variable :kind name) :special)))
+ (make-global (name old)
+ (unless (member old '(:global :unknown))
+ (error "Cannot proclaim a ~(~A~) variable global: ~S" old name))
+ (with-single-package-locked-error
+ (:symbol name "globally declaring ~A global")
+ (setf (info :variable :kind name) :global))))
+ (let ((fun (if (eq 'special kind) #'make-special #'make-global)))
+ (dolist (name args)
+ (unless (symbolp name)
+ (error "Can't declare a non-symbol as ~S: ~S" kind name))
+ (funcall fun name (info :variable :kind name))))))
+ (always-bound
(dolist (name args)
- (unless (symbolp name)
- (error "can't declare a non-symbol as SPECIAL: ~S" name))
- (clear-info :variable :constant-value name)
- (setf (info :variable :kind name) :special)))
+ (unless (symbolp name)
+ (error "Can't proclaim a non-symbol as ~S: ~S" kind name))
+ (unless (boundp name)
+ (error "Can't proclaim an unbound symbol as ~S: ~S" kind name))
+ (when (eq :constant (info :variable :kind name))
+ (error "Can't proclaim a constant variable as ~S: ~S" kind name))
+ (with-single-package-locked-error
+ (:symbol name "globally declaring ~A always bound")
+ (setf (info :variable :always-bound name) t))))
(type
- (when *type-system-initialized*
- (let ((type (specifier-type (first args))))
- (dolist (name (rest args))
- (unless (symbolp name)
- (error "can't declare TYPE of a non-symbol: ~S" name))
- (when (eq (info :variable :where-from name) :declared)
- (let ((old-type (info :variable :type name)))
- (when (type/= type old-type)
- (style-warn "The new TYPE proclamation~% ~S~@
- for ~S does not match the old TYPE~@
- proclamation ~S"
- type name old-type))))
- (setf (info :variable :type name) type)
- (setf (info :variable :where-from name) :declared)))))
+ (if *type-system-initialized*
+ (let ((type (specifier-type (first args))))
+ (dolist (name (rest args))
+ (unless (symbolp name)
+ (error "can't declare TYPE of a non-symbol: ~S" name))
+ (with-single-package-locked-error
+ (:symbol name "globally declaring the type of ~A"))
+ (when (eq (info :variable :where-from name) :declared)
+ (let ((old-type (info :variable :type name)))
+ (when (type/= type old-type)
+ ;; FIXME: changing to TYPE-PROCLAMATION-MISMATCH
+ ;; broke late-proclaim.lisp.
+ (style-warn
+ "~@<new TYPE proclamation for ~S~@:_ ~S~@:_~
+ does not match the old TYPE proclamation:~@:_ ~S~@:>"
+ name (type-specifier type) (type-specifier old-type)))))
+ (setf (info :variable :type name) type)
+ (setf (info :variable :where-from name) :declared)))
+ (push raw-form *queued-proclaims*)))
(ftype
- ;; 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))
- (cond ((info :function :accessor-for name)
- (warn "ignoring FTYPE proclamation for slot accessor:~% ~S"
- name))
- (t
-
- ;; 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
- #+nil
- (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)))))
+ (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)
- (proclaim-as-function-name name)
- (note-name-defined name :function)
- (setf (info :function :type name) type
- (info :function :where-from name) :declared)))))))
+ ;; the actual type declaration
+ (setf (info :function :type name) ctype
+ (info :function :where-from name) :declared))))
+ (push raw-form *queued-proclaims*)))
(freeze-type
(dolist (type args)
- (let ((class (specifier-type type)))
- (when (typep class 'class)
- (setf (class-state class) :sealed)
- (let ((subclasses (class-subclasses class)))
- (when subclasses
- (dohash (subclass layout subclasses)
- (declare (ignore layout))
- (setf (class-state subclass) :sealed))))))))
+ (let ((class (specifier-type type)))
+ (when (typep class 'classoid)
+ (setf (classoid-state class) :sealed)
+ (let ((subclasses (classoid-subclasses class)))
+ (when subclasses
+ (dohash ((subclass layout) subclasses :locked t)
+ (declare (ignore layout))
+ (setf (classoid-state subclass) :sealed))))))))
(optimize
- (setq *default-cookie*
- (process-optimize-declaration form *default-cookie*)))
- (optimize-interface
- (setq *default-interface-cookie*
- (process-optimize-declaration form *default-interface-cookie*)))
+ (setq *policy* (process-optimize-decl form *policy*)))
+ (muffle-conditions
+ (setq *handled-conditions*
+ (process-muffle-conditions-decl form *handled-conditions*)))
+ (unmuffle-conditions
+ (setq *handled-conditions*
+ (process-unmuffle-conditions-decl form *handled-conditions*)))
+ ((disable-package-locks enable-package-locks)
+ (setq *disabled-package-locks*
+ (process-package-lock-decl form *disabled-package-locks*)))
((inline notinline maybe-inline)
(dolist (name args)
- (proclaim-as-function-name name)
- (setf (info :function :inlinep name)
- (case kind
- (inline :inline)
- (notinline :notinline)
- (maybe-inline :maybe-inline)))))
- (constant-function
- (let ((info (make-function-info
- :attributes (ir1-attributes movable foldable flushable
- unsafe))))
- (dolist (name args)
- (proclaim-as-function-name name)
- (setf (info :function :info name) info))))
+ ; since implicitly it is a function, also scrubs *FREE-FUNS*
+ (proclaim-as-fun-name name)
+ (setf (info :function :inlinep name)
+ (ecase kind
+ (inline :inline)
+ (notinline :notinline)
+ (maybe-inline :maybe-inline)))))
(declaration
(dolist (decl args)
- (unless (symbolp decl)
- (error "The declaration to be recognized is not a symbol: ~S" decl))
- (setf (info :declaration :recognized decl) t)))
+ (unless (symbolp decl)
+ (error "In~% ~S~%the declaration to be recognized is not a ~
+ symbol:~% ~S"
+ form decl))
+ (with-single-package-locked-error
+ (:symbol decl "globally declaring ~A as a declaration proclamation"))
+ (setf (info :declaration :recognized decl) t)))
(t
- (cond ((member kind *standard-type-names*)
- (sb!xc:proclaim `(type . ,form))) ; FIXME: ,@ instead of . ,
- ((not (info :declaration :recognized kind))
- (warn "unrecognized proclamation: ~S" form))))))
+ (unless (info :declaration :recognized kind)
+ (compiler-warn "unrecognized declaration ~S" raw-form)))))
+ #+sb-xc (/show0 "returning from PROCLAIM")
(values))
-
-;;; Keep the compiler from issuing warnings about SB!C::%%DEFMACRO
-;;; when it compiles code which expands into calls to the function
-;;; before it's actually compiled the function.
-;;;
-;;; (This can't be done in defmacro.lisp because PROCLAIM isn't
-;;; defined when defmacro.lisp is loaded.)
-#+sb-xc-host (sb!xc:proclaim '(ftype function sb!c::%%defmacro))
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