(in-package "SB!C")
-;;; !COLD-INIT calls this twice to initialize policy, 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-policy*
- (make-policy :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-policy*
- (make-policy)))
-(!defun-from-collected-cold-init-forms !set-sane-policy-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
;;; structures for any which exist. If any of the names aren't
;;; symbols, we complain.
;;; Return a new POLICY containing the policy information represented
;;; by the optimize declaration SPEC. Any parameters not specified are
;;; defaulted from the POLICY argument.
-(declaim (ftype (function (list policy) policy) process-optimize-declaration))
-(defun process-optimize-declaration (spec policy)
- (let ((res (copy-policy policy)))
- (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 (policy-speed res) value))
- (space (setf (policy-space res) value))
- (safety (setf (policy-safety res) value))
- (compilation-speed (setf (policy-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 (policy-brevity res) value))
- ((debug-info debug) (setf (policy-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))
+(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))
+ (compiler-warning "ignoring unknown optimization quality ~
+ ~S in ~S"
+ quality spec))
+ ((not (and (typep raw-value 'real) (<= 0 raw-value 3)))
+ (compiler-warning "ignoring bad optimization value ~S in ~S"
+ raw-value spec))
+ (t
+ (push (cons quality (rational 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.
+ result))
-(defun sb!xc:proclaim (form)
- (unless (consp form)
- (error "malformed PROCLAIM spec: ~S" form))
- (let ((kind (first form))
- (args (rest form)))
+;;; 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)))
+ (unless (symbolp id)
+ (error "The declaration identifier is not a symbol: ~S" id))
+ (let ((id-is-type (info :type :kind id))
+ (id-is-declared-decl (info :declaration :recognized id)))
+ (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)))))
+
+(defun sb!xc:proclaim (raw-form)
+ (let* ((form (canonized-decl-spec raw-form))
+ (kind (first form))
+ (args (rest form)))
(case kind
(special
(dolist (name 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)
- ;; FIXME: This used to be a WARNING, which was
- ;; clearly wrong, since it would cause warnings to
- ;; be issued for conforming code, which is really
- ;; annoying for people who use Lisp code to build
- ;; Lisp systems (and check the return values from
- ;; COMPILE and COMPILE-FILE). Changing it to a
- ;; compiler note is somewhat better, since it's
- ;; after all news about a limitation of the
- ;; compiler, not a problem in the code. But even
- ;; better would be to handle FTYPE proclamations
- ;; for slot accessors, and since in the long run
- ;; slot accessors should become more like other
- ;; functions, this should eventually become
- ;; straightforward.
- (maybe-compiler-note
- "~@<ignoring FTYPE proclamation for ~
- slot accessor (currently unsupported): ~2I~_~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)))))
+ ;; 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.
+ ;;
+ ;; 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) type
+ (info :function :where-from name) :declared)))))
(freeze-type
(dolist (type args)
(let ((class (specifier-type type)))
- (when (typep class 'class)
+ (when (typep class 'sb!xc:class)
(setf (class-state class) :sealed)
(let ((subclasses (class-subclasses class)))
(when subclasses
(declare (ignore layout))
(setf (class-state subclass) :sealed))))))))
(optimize
- (setq *default-policy*
- (process-optimize-declaration form *default-policy*)))
- (optimize-interface
- (setq *default-interface-policy*
- (process-optimize-declaration form *default-interface-policy*)))
+ (setq *policy* (process-optimize-decl form *policy*)))
((inline notinline maybe-inline)
(dolist (name args)
- (proclaim-as-function-name name)
+ (proclaim-as-fun-name name) ; since implicitly it is a function
(setf (info :function :inlinep name)
- (case kind
+ (ecase 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))))
(declaration
(dolist (decl args)
(unless (symbolp decl)
- (error "The declaration to be recognized is not a symbol: ~S" decl))
+ (error "In~% ~S~%the declaration to be recognized is not a ~
+ symbol:~% ~S"
+ form decl))
(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-warning "unrecognized declaration ~S" raw-form)))))
(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))
projects / sbcl.git / blobdiff