X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fproclaim.lisp;h=d0231ce5a0c20ca14f3554b9cbbe024a92431b98;hb=4fa1c71c7dfa5c6d361304321cc67069a6410694;hp=3bedcb539461ecb03f5a6d8c08e98d7739e76804;hpb=416152f084604094445a758ff399871132dff2bd;p=sbcl.git diff --git a/src/compiler/proclaim.lisp b/src/compiler/proclaim.lisp index 3bedcb5..d0231ce 100644 --- a/src/compiler/proclaim.lisp +++ b/src/compiler/proclaim.lisp @@ -19,7 +19,7 @@ (defvar *undefined-warnings*) (declaim (list *undefined-warnings*)) -;;; 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)) @@ -27,9 +27,9 @@ (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 POLICY containing the policy information represented ;;; by the optimize declaration SPEC. Any parameters not specified are @@ -40,157 +40,256 @@ ;; 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))))) + (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 + "~@" + quality spec))) + ((not (typep raw-value 'policy-quality)) + (compiler-warn "~@" + 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))) + (push old-entry result))) ;; Voila. - result)) + (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)) + +(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))) - (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))) + (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:~% ~ + (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))))) + 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))) + (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)) - (when (constantp name) - (error "can't declare a constant 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 + "~@" + 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)) - - ;; 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))))) - |# + (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. + (style-warn + "~@" + 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. (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)) + ;; 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) - ;; the actual type declaration - (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 'sb!xc: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 *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) - ;; (CMU CL did (PROCLAIM-AS-FUNCTION-NAME NAME) here, but that - ;; seems more likely to surprise the user than to help him, so - ;; we don't do it.) - (setf (info :function :inlinep name) - (ecase kind - (inline :inline) - (notinline :notinline) - (maybe-inline :maybe-inline))))) + ; 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 "In~% ~S~%the declaration to be recognized is not a ~ + (unless (symbolp decl) + (error "In~% ~S~%the declaration to be recognized is not a ~ symbol:~% ~S" - form decl)) - (setf (info :declaration :recognized decl) t))) + form decl)) + (with-single-package-locked-error + (:symbol decl "globally declaring ~A as a declaration proclamation")) + (setf (info :declaration :recognized decl) t))) (t (unless (info :declaration :recognized kind) - (compiler-warning "unrecognized declaration ~S" raw-form))))) + (compiler-warn "unrecognized declaration ~S" raw-form))))) + #+sb-xc (/show0 "returning from PROCLAIM") (values))