1 ;;;; SBCL-specific parts of the condition system, i.e. parts which
2 ;;;; don't duplicate/clobber functionality already provided by the
3 ;;;; cross-compilation host Common Lisp
5 ;;;; This software is part of the SBCL system. See the README file for
8 ;;;; This software is derived from the CMU CL system, which was
9 ;;;; written at Carnegie Mellon University and released into the
10 ;;;; public domain. The software is in the public domain and is
11 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
12 ;;;; files for more information.
14 (in-package "SB!KERNEL")
16 ;;; not sure this is the right place, but where else?
17 (defun style-warn (datum &rest arguments)
18 (/show0 "entering STYLE-WARN")
19 (/show datum arguments)
22 (warn 'simple-style-warning
24 :format-arguments arguments))
25 ;; Maybe FIXME: check that the DATUM is a STYLE-WARNING or a
26 ;; specifier for a subtype of STYLE-WARNING? (I had trouble
27 ;; getting through cold-init with that check enabled, though.)
29 (apply #'warn datum arguments)))
31 ;;; a utility for SIGNAL, ERROR, CERROR, WARN, COMPILER-NOTIFY and
32 ;;; INVOKE-DEBUGGER: Parse the hairy argument conventions into a
33 ;;; single argument that's directly usable by all the other routines.
34 (defun coerce-to-condition (datum arguments default-type fun-name)
35 (cond ((typep datum 'condition)
36 (when (and arguments (not (eq fun-name 'cerror)))
37 (cerror "Ignore the additional arguments."
41 :format-control "You may not supply additional arguments ~
42 when giving ~S to ~S."
43 :format-arguments (list datum fun-name)))
45 ((symbolp datum) ; roughly, (SUBTYPEP DATUM 'CONDITION)
46 (apply #'make-condition datum arguments))
47 ((or (stringp datum) (functionp datum))
48 (make-condition default-type
50 :format-arguments arguments))
52 (error 'simple-type-error
54 :expected-type '(or symbol string)
55 :format-control "Condition designator ~s is not of type ~s."
56 :format-arguments (list datum
57 '(or symbol string))))))
59 (define-condition layout-invalid (type-error)
62 (lambda (condition stream)
64 "~@<invalid structure layout: ~
65 ~2I~_A test for class ~4I~_~S ~
66 ~2I~_was passed the obsolete instance ~4I~_~S~:>"
67 (classoid-proper-name (type-error-expected-type condition))
68 (type-error-datum condition)))))
70 (define-condition case-failure (type-error)
71 ((name :reader case-failure-name :initarg :name)
72 (possibilities :reader case-failure-possibilities :initarg :possibilities))
74 (lambda (condition stream)
75 (format stream "~@<~S fell through ~S expression. ~
76 ~:_Wanted one of ~:S.~:>"
77 (type-error-datum condition)
78 (case-failure-name condition)
79 (case-failure-possibilities condition)))))
81 (define-condition compiled-program-error (program-error)
82 ((message :initarg :message :reader program-error-message)
83 (source :initarg :source :reader program-error-source))
84 (:report (lambda (condition stream)
85 (format stream "Execution of a form compiled with errors.~%~
87 Compile-time error:~% ~A"
88 (program-error-source condition)
89 (program-error-message condition)))))
91 (define-condition interpreted-program-error
92 (program-error encapsulated-condition)
93 ;; Unlike COMPILED-PROGRAM-ERROR, we don't need to dump these, so
94 ;; storing the original condition and form is OK.
95 ((form :initarg :form :reader program-error-form))
96 (:report (lambda (condition stream)
97 (format stream "~&Evaluation of~% ~S~%~
99 (program-error-form condition)
100 (encapsulated-condition condition)))))
102 (define-condition simple-control-error (simple-condition control-error) ())
103 (define-condition simple-file-error (simple-condition file-error) ())
104 (define-condition simple-program-error (simple-condition program-error) ())
105 (define-condition simple-stream-error (simple-condition stream-error) ())
106 (define-condition simple-parse-error (simple-condition parse-error) ())
108 (define-condition character-coding-error (error)
109 ((external-format :initarg :external-format :reader character-coding-error-external-format)))
110 (define-condition character-encoding-error (character-coding-error)
111 ((code :initarg :code :reader character-encoding-error-code)))
112 (define-condition character-decoding-error (character-coding-error)
113 ((octets :initarg :octets :reader character-decoding-error-octets)))
114 (define-condition stream-encoding-error (stream-error character-encoding-error)
118 (let ((stream (stream-error-stream c))
119 (code (character-encoding-error-code c)))
120 (format s "~@<~S stream encoding error on ~S: ~2I~_~
121 the character with code ~D cannot be encoded.~@:>"
122 (character-coding-error-external-format c)
125 (define-condition stream-decoding-error (stream-error character-decoding-error)
129 (let ((stream (stream-error-stream c))
130 (octets (character-decoding-error-octets c)))
131 (format s "~@<~S stream decoding error on ~S: ~2I~_~
132 the octet sequence ~S cannot be decoded.~@:>"
133 (character-coding-error-external-format c)
137 (define-condition c-string-encoding-error (character-encoding-error)
141 (format s "~@<~S c-string encoding error: ~2I~_~
142 the character with code ~D cannot be encoded.~@:>"
143 (character-coding-error-external-format c)
144 (character-encoding-error-code c)))))
146 (define-condition c-string-decoding-error (character-decoding-error)
150 (format s "~@<~S c-string decoding error: ~2I~_~
151 the octet sequence ~S cannot be decoded.~@:>"
152 (character-coding-error-external-format c)
153 (character-decoding-error-octets c)))))
155 (define-condition control-stack-exhausted (storage-condition)
158 (lambda (condition stream)
159 (declare (ignore condition))
161 ;; no pretty-printing, because that would use a lot of stack.
162 "Control stack exhausted (no more space for function call frames).
163 This is probably due to heavily nested or infinitely recursive function
164 calls, or a tail call that SBCL cannot or has not optimized away.
166 PROCEED WITH CAUTION."))))
168 (define-condition binding-stack-exhausted (storage-condition)
171 (lambda (condition stream)
172 (declare (ignore condition))
174 ;; no pretty-printing, because that would use a lot of stack.
175 "Binding stack exhausted.
177 PROCEED WITH CAUTION."))))
179 (define-condition alien-stack-exhausted (storage-condition)
182 (lambda (condition stream)
183 (declare (ignore condition))
185 ;; no pretty-printing, because that would use a lot of stack.
186 "Alien stack exhausted.
188 PROCEED WITH CAUTION."))))
190 (define-condition heap-exhausted-error (storage-condition)
193 (lambda (condition stream)
194 (declare (ignore condition))
195 (declare (special *heap-exhausted-error-available-bytes*
196 *heap-exhausted-error-requested-bytes*))
197 ;; See comments in interr.lisp -- there is a method to this madness.
198 (if (and (boundp '*heap-exhausted-error-available-bytes*)
199 (boundp '*heap-exhausted-error-requested-bytes*))
201 ;; no pretty-printing, because that will use a lot of heap.
202 "Heap exhausted (no more space for allocation).
203 There are still ~D bytes available; the request was for ~D bytes.
205 PROCEED WITH CAUTION."
206 *heap-exhausted-error-available-bytes*
207 *heap-exhausted-error-requested-bytes*)
209 "A ~S condition without bindings for heap statistics. (If
210 you did not expect to see this message, please report it."
211 'heap-exhausted-error)))))
213 (define-condition system-condition (condition)
214 ((address :initarg :address :reader system-condition-address :initform nil)
215 (context :initarg :context :reader system-condition-context :initform nil)))
217 (define-condition memory-fault-error (system-condition error) ()
219 (lambda (condition stream)
220 (format stream "Unhandled memory fault at #x~X."
221 (system-condition-address condition)))))
223 (define-condition breakpoint-error (system-condition error) ()
225 (lambda (condition stream)
226 (format stream "Unhandled breakpoint/trap at #x~X."
227 (system-condition-address condition)))))
229 (define-condition interactive-interrupt (system-condition serious-condition) ()
231 (lambda (condition stream)
232 (format stream "Interactive interrupt at #x~X."
233 (system-condition-address condition)))))