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 "bad argument to ~S: ~S"
56 :format-arguments (list fun-name datum)))))
58 (define-condition layout-invalid (type-error)
61 (lambda (condition stream)
63 "~@<invalid structure layout: ~
64 ~2I~_A test for class ~4I~_~S ~
65 ~2I~_was passed the obsolete instance ~4I~_~S~:>"
66 (classoid-proper-name (type-error-expected-type condition))
67 (type-error-datum condition)))))
69 (define-condition case-failure (type-error)
70 ((name :reader case-failure-name :initarg :name)
71 (possibilities :reader case-failure-possibilities :initarg :possibilities))
73 (lambda (condition stream)
74 (format stream "~@<~S fell through ~S expression. ~
75 ~:_Wanted one of ~:S.~:>"
76 (type-error-datum condition)
77 (case-failure-name condition)
78 (case-failure-possibilities condition)))))
80 (define-condition compiled-program-error (program-error)
81 ((message :initarg :message :reader program-error-message)
82 (source :initarg :source :reader program-error-source))
83 (:report (lambda (condition stream)
84 (format stream "Execution of a form compiled with errors.~%~
86 Compile-time error:~% ~A"
87 (program-error-source condition)
88 (program-error-message condition)))))
90 (define-condition interpreted-program-error
91 (program-error encapsulated-condition)
92 ;; Unlike COMPILED-PROGRAM-ERROR, we don't need to dump these, so
93 ;; storing the original condition and form is OK.
94 ((form :initarg :form :reader program-error-form))
95 (:report (lambda (condition stream)
96 (format stream "~&Evaluation of~% ~S~%~
98 (program-error-form condition)
99 (encapsulated-condition condition)))))
101 (define-condition simple-control-error (simple-condition control-error) ())
102 (define-condition simple-file-error (simple-condition file-error) ())
103 (define-condition simple-program-error (simple-condition program-error) ())
104 (define-condition simple-stream-error (simple-condition stream-error) ())
105 (define-condition simple-parse-error (simple-condition parse-error) ())
107 (define-condition character-coding-error (error) ())
108 (define-condition character-encoding-error (character-coding-error)
109 ((code :initarg :code :reader character-encoding-error-code)))
110 (define-condition character-decoding-error (character-coding-error)
111 ((octets :initarg :octets :reader character-decoding-error-octets)))
112 (define-condition stream-encoding-error (stream-error character-encoding-error)
116 (let ((stream (stream-error-stream c))
117 (code (character-encoding-error-code c)))
118 (format s "~@<encoding error on stream ~S (~S ~S): ~2I~_~
119 the character with code ~D cannot be encoded.~@:>"
120 stream ':external-format (stream-external-format stream)
122 (define-condition stream-decoding-error (stream-error character-decoding-error)
126 (let ((stream (stream-error-stream c))
127 (octets (character-decoding-error-octets c)))
128 (format s "~@<decoding error on stream ~S (~S ~S): ~2I~_~
129 the octet sequence ~S cannot be decoded.~@:>"
130 stream ':external-format (stream-external-format stream)
133 (define-condition c-string-encoding-error (character-encoding-error)
134 ((external-format :initarg :external-format :reader c-string-encoding-error-external-format))
137 (format s "~@<c-string encoding error (:external-format ~S): ~2I~_~
138 the character with code ~D cannot be encoded.~@:>"
139 (c-string-encoding-error-external-format c)
140 (character-encoding-error-code c)))))
142 (define-condition c-string-decoding-error (character-decoding-error)
143 ((external-format :initarg :external-format :reader c-string-decoding-error-external-format))
146 (format s "~@<c-string decoding error (:external-format ~S): ~2I~_~
147 the octet sequence ~S cannot be decoded.~@:>"
148 (c-string-decoding-error-external-format c)
149 (character-decoding-error-octets c)))))
151 (define-condition control-stack-exhausted (storage-condition)
154 (lambda (condition stream)
155 (declare (ignore condition))
157 ;; no pretty-printing, because that would use a lot of stack.
158 "Control stack exhausted (no more space for function call frames).
159 This is probably due to heavily nested or infinitely recursive function
160 calls, or a tail call that SBCL cannot or has not optimized away.
162 PROCEED WITH CAUTION."))))
164 (define-condition heap-exhausted-error (storage-condition)
167 (lambda (condition stream)
168 (declare (ignore condition))
169 (declare (special *heap-exhausted-error-available-bytes*
170 *heap-exhausted-error-requested-bytes*))
171 ;; See comments in interr.lisp -- there is a method to this madness.
172 (if (and (boundp '*heap-exhausted-error-available-bytes*)
173 (boundp '*heap-exhausted-error-requested-bytes*))
175 ;; no pretty-printing, because that will use a lot of heap.
176 "Heap exhausted (no more space for allocation).
177 There are still ~D bytes available; the request was for ~D bytes.
179 PROCEED WITH CAUTION."
180 *heap-exhausted-error-available-bytes*
181 *heap-exhausted-error-requested-bytes*)
183 "A ~S condition without bindings for heap statistics. (If
184 you did not expect to see this message, please report it."
185 'heap-exhausted-error)))))
187 (define-condition system-condition (condition)
188 ((address :initarg :address :reader system-condition-address :initform nil)
189 (context :initarg :context :reader system-condition-context :initform nil)))
191 (define-condition memory-fault-error (system-condition error) ()
193 (lambda (condition stream)
194 (format stream "Unhandled memory fault at #x~X."
195 (system-condition-address condition)))))
197 (define-condition breakpoint-error (system-condition error) ()
199 (lambda (condition stream)
200 (format stream "Unhandled breakpoint/trap at #x~X."
201 (system-condition-address condition)))))
203 (define-condition interactive-interrupt (system-condition serious-condition) ()
205 (lambda (condition stream)
206 (format stream "Interactive interrupt at #x~X."
207 (system-condition-address condition)))))