(eval-when (:compile-toplevel :load-toplevel :execute)
(defun %compiler-define-condition (name direct-supers layout
all-readers all-writers)
- (sb!xc:proclaim `(ftype (function (t) t) ,@all-readers))
- (sb!xc:proclaim `(ftype (function (t t) t) ,@all-writers))
- (multiple-value-bind (class old-layout)
- (insured-find-classoid name
- #'condition-classoid-p
- #'make-condition-classoid)
- (setf (layout-classoid layout) class)
- (setf (classoid-direct-superclasses class)
- (mapcar #'find-classoid direct-supers))
- (cond ((not old-layout)
- (register-layout layout))
- ((not *type-system-initialized*)
- (setf (layout-classoid old-layout) class)
- (setq layout old-layout)
- (unless (eq (classoid-layout class) layout)
+ (with-single-package-locked-error
+ (:symbol name "defining ~A as a condition")
+ (sb!xc:proclaim `(ftype (function (t) t) ,@all-readers))
+ (sb!xc:proclaim `(ftype (function (t t) t) ,@all-writers))
+ (multiple-value-bind (class old-layout)
+ (insured-find-classoid name
+ #'condition-classoid-p
+ #'make-condition-classoid)
+ (setf (layout-classoid layout) class)
+ (setf (classoid-direct-superclasses class)
+ (mapcar #'find-classoid direct-supers))
+ (cond ((not old-layout)
+ (register-layout layout))
+ ((not *type-system-initialized*)
+ (setf (layout-classoid old-layout) class)
+ (setq layout old-layout)
+ (unless (eq (classoid-layout class) layout)
+ (register-layout layout)))
+ ((redefine-layout-warning "current"
+ old-layout
+ "new"
+ (layout-length layout)
+ (layout-inherits layout)
+ (layout-depthoid layout))
+ (register-layout layout :invalidate t))
+ ((not (classoid-layout class))
(register-layout layout)))
- ((redefine-layout-warning "current"
- old-layout
- "new"
- (layout-length layout)
- (layout-inherits layout)
- (layout-depthoid layout))
- (register-layout layout :invalidate t))
- ((not (classoid-layout class))
- (register-layout layout)))
-
- (setf (layout-info layout)
- (locally
- ;; KLUDGE: There's a FIND-CLASS DEFTRANSFORM for constant class
- ;; names which creates fast but non-cold-loadable, non-compact
- ;; code. In this context, we'd rather have compact, cold-loadable
- ;; code. -- WHN 19990928
- (declare (notinline find-classoid))
- (layout-info (classoid-layout (find-classoid 'condition)))))
-
- (setf (find-classoid name) class)
-
- ;; Initialize CPL slot.
- (setf (condition-classoid-cpl class)
- (remove-if-not #'condition-classoid-p
- (std-compute-class-precedence-list class))))
+
+ (setf (layout-info layout)
+ (locally
+ ;; KLUDGE: There's a FIND-CLASS DEFTRANSFORM for constant class
+ ;; names which creates fast but non-cold-loadable, non-compact
+ ;; code. In this context, we'd rather have compact, cold-loadable
+ ;; code. -- WHN 19990928
+ (declare (notinline find-classoid))
+ (layout-info (classoid-layout (find-classoid 'condition)))))
+
+ (setf (find-classoid name) class)
+
+ ;; Initialize CPL slot.
+ (setf (condition-classoid-cpl class)
+ (remove-if-not #'condition-classoid-p
+ (std-compute-class-precedence-list class)))))
(values))
) ; EVAL-WHEN
(defun %define-condition (name parent-types layout slots documentation
report default-initargs all-readers all-writers)
- (%compiler-define-condition name parent-types layout all-readers all-writers)
- (let ((class (find-classoid name)))
- (setf (condition-classoid-slots class) slots)
- (setf (condition-classoid-report class) report)
- (setf (condition-classoid-default-initargs class) default-initargs)
- (setf (fdocumentation name 'type) documentation)
-
- (dolist (slot slots)
-
- ;; Set up reader and writer functions.
- (let ((slot-name (condition-slot-name slot)))
- (dolist (reader (condition-slot-readers slot))
- (install-condition-slot-reader reader name slot-name))
- (dolist (writer (condition-slot-writers slot))
- (install-condition-slot-writer writer name slot-name))))
-
- ;; Compute effective slots and set up the class and hairy slots
- ;; (subsets of the effective slots.)
- (let ((eslots (compute-effective-slots class))
- (e-def-initargs
- (reduce #'append
- (mapcar #'condition-classoid-default-initargs
+ (with-single-package-locked-error
+ (:symbol name "defining ~A as a condition")
+ (%compiler-define-condition name parent-types layout all-readers all-writers)
+ (let ((class (find-classoid name)))
+ (setf (condition-classoid-slots class) slots)
+ (setf (condition-classoid-report class) report)
+ (setf (condition-classoid-default-initargs class) default-initargs)
+ (setf (fdocumentation name 'type) documentation)
+
+ (dolist (slot slots)
+
+ ;; Set up reader and writer functions.
+ (let ((slot-name (condition-slot-name slot)))
+ (dolist (reader (condition-slot-readers slot))
+ (install-condition-slot-reader reader name slot-name))
+ (dolist (writer (condition-slot-writers slot))
+ (install-condition-slot-writer writer name slot-name))))
+
+ ;; Compute effective slots and set up the class and hairy slots
+ ;; (subsets of the effective slots.)
+ (let ((eslots (compute-effective-slots class))
+ (e-def-initargs
+ (reduce #'append
+ (mapcar #'condition-classoid-default-initargs
(condition-classoid-cpl class)))))
- (dolist (slot eslots)
- (ecase (condition-slot-allocation slot)
- (:class
- (unless (condition-slot-cell slot)
- (setf (condition-slot-cell slot)
- (list (if (condition-slot-initform-p slot)
- (let ((initform (condition-slot-initform slot)))
- (if (functionp initform)
- (funcall initform)
- initform))
- *empty-condition-slot*))))
- (push slot (condition-classoid-class-slots class)))
- ((:instance nil)
- (setf (condition-slot-allocation slot) :instance)
- (when (or (functionp (condition-slot-initform slot))
- (dolist (initarg (condition-slot-initargs slot) nil)
- (when (functionp (getf e-def-initargs initarg))
- (return t))))
- (push slot (condition-classoid-hairy-slots class))))))))
- name)
+ (dolist (slot eslots)
+ (ecase (condition-slot-allocation slot)
+ (:class
+ (unless (condition-slot-cell slot)
+ (setf (condition-slot-cell slot)
+ (list (if (condition-slot-initform-p slot)
+ (let ((initform (condition-slot-initform slot)))
+ (if (functionp initform)
+ (funcall initform)
+ initform))
+ *empty-condition-slot*))))
+ (push slot (condition-classoid-class-slots class)))
+ ((:instance nil)
+ (setf (condition-slot-allocation slot) :instance)
+ (when (or (functionp (condition-slot-initform slot))
+ (dolist (initarg (condition-slot-initargs slot) nil)
+ (when (functionp (getf e-def-initargs initarg))
+ (return t))))
+ (push slot (condition-classoid-hairy-slots class))))))))
+ name))
(defmacro define-condition (name (&rest parent-types) (&rest slot-specs)
&body options)
(define-condition extension-failure (reference-condition simple-error)
())
+
+#!+sb-package-locks
+(progn
+
+(define-condition package-lock-violation (reference-condition package-error)
+ ((format-control :initform nil :initarg :format-control
+ :reader package-error-format-control)
+ (format-arguments :initform nil :initarg :format-arguments
+ :reader package-error-format-arguments))
+ (:report
+ (lambda (condition stream)
+ (let ((control (package-error-format-control condition))
+ (*print-pretty* nil))
+ (if control
+ (format stream "Package lock on ~S violated when ~?."
+ (package-error-package condition)
+ control
+ (package-error-format-arguments condition))
+ (format stream "Package lock on ~S violated."
+ (package-error-package condition))))))
+ ;; no :default-initargs -- reference-stuff provided by the
+ ;; signalling form in target-package.lisp
+ #!+sb-doc
+ (:documentation
+ "Subtype of CL:PACKAGE-ERROR. A subtype of this error is signalled
+when a package-lock is violated."))
+
+(define-condition package-locked-error (package-lock-violation) ()
+ #!+sb-doc
+ (:documentation
+ "Subtype of SB-EXT:PACKAGE-LOCK-VIOLATION. An error of this type is
+signalled when an operation on a package violates a package lock."))
+
+
+(define-condition symbol-package-locked-error (package-lock-violation)
+ ((symbol :initarg :symbol :reader package-locked-error-symbol))
+ #!+sb-doc
+ (:documentation
+ "Subtype of SB-EXT:PACKAGE-LOCK-VIOLATION. An error of this type is
+signalled when an operation on a symbol violates a package lock. The
+symbol that caused the violation is accessed by the function
+SB-EXT:PACKAGE-LOCKED-ERROR-SYMBOL."))
+
+) ; progn
\f
;;;; various other (not specified by ANSI) CONDITIONs
;;;;
projects / sbcl.git / blobdiff