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 (format-control &rest format-arguments
)
18 (/show0
"entering STYLE-WARN")
19 (/show format-control format-arguments
)
21 (warn 'simple-style-warning
22 :format-control format-control
23 :format-arguments format-arguments
)))
25 ;;; a utility for SIGNAL, ERROR, CERROR, WARN, COMPILER-NOTIFY and
26 ;;; INVOKE-DEBUGGER: Parse the hairy argument conventions into a
27 ;;; single argument that's directly usable by all the other routines.
28 (defun coerce-to-condition (datum arguments default-type fun-name
)
29 (cond ((typep datum
'condition
)
30 (when (and arguments
(not (eq fun-name
'cerror
)))
31 (cerror "Ignore the additional arguments."
35 :format-control
"You may not supply additional arguments ~
36 when giving ~S to ~S."
37 :format-arguments
(list datum fun-name
)))
39 ((symbolp datum
) ; roughly, (SUBTYPEP DATUM 'CONDITION)
40 (apply #'make-condition datum arguments
))
41 ((or (stringp datum
) (functionp datum
))
42 (make-condition default-type
44 :format-arguments arguments
))
46 (error 'simple-type-error
48 :expected-type
'(or symbol string
)
49 :format-control
"bad argument to ~S: ~S"
50 :format-arguments
(list fun-name datum
)))))
52 (define-condition layout-invalid
(type-error)
55 (lambda (condition stream
)
57 "~@<invalid structure layout: ~
58 ~2I~_A test for class ~4I~_~S ~
59 ~2I~_was passed the obsolete instance ~4I~_~S~:>"
60 (classoid-proper-name (type-error-expected-type condition
))
61 (type-error-datum condition
)))))
63 (define-condition case-failure
(type-error)
64 ((name :reader case-failure-name
:initarg
:name
)
65 (possibilities :reader case-failure-possibilities
:initarg
:possibilities
))
67 (lambda (condition stream
)
68 (format stream
"~@<~S fell through ~S expression. ~
69 ~:_Wanted one of ~:S.~:>"
70 (type-error-datum condition
)
71 (case-failure-name condition
)
72 (case-failure-possibilities condition
)))))
74 (define-condition compiled-program-error
(program-error)
75 ((message :initarg
:message
:reader program-error-message
)
76 (source :initarg
:source
:reader program-error-source
))
77 (:report
(lambda (condition stream
)
78 (format stream
"Execution of a form compiled with errors.~%~
80 Compile-time error:~% ~A"
81 (program-error-source condition
)
82 (program-error-message condition
)))))
84 (define-condition interpreted-program-error
85 (program-error encapsulated-condition
)
86 ;; Unlike COMPILED-PROGRAM-ERROR, we don't need to dump these, so
87 ;; storing the original condition and form is OK.
88 ((form :initarg
:form
:reader program-error-form
))
89 (:report
(lambda (condition stream
)
90 (format stream
"~&Evaluation of~% ~S~%~
92 (program-error-form condition
)
93 (encapsulated-condition condition
)))))
95 (define-condition simple-control-error
(simple-condition control-error
) ())
96 (define-condition simple-file-error
(simple-condition file-error
) ())
97 (define-condition simple-program-error
(simple-condition program-error
) ())
98 (define-condition simple-stream-error
(simple-condition stream-error
) ())
99 (define-condition simple-parse-error
(simple-condition parse-error
) ())
101 (define-condition character-coding-error
(error) ())
102 (define-condition character-encoding-error
(character-coding-error)
103 ((code :initarg
:code
:reader character-encoding-error-code
)))
104 (define-condition character-decoding-error
(character-coding-error)
105 ((octets :initarg
:octets
:reader character-decoding-error-octets
)))
106 (define-condition stream-encoding-error
(stream-error character-encoding-error
)
110 (let ((stream (stream-error-stream c
))
111 (code (character-encoding-error-code c
)))
112 (format s
"~@<encoding error on stream ~S (~S ~S): ~2I~_~
113 the character with code ~D cannot be encoded.~@:>"
114 stream
':external-format
(stream-external-format stream
)
116 (define-condition stream-decoding-error
(stream-error character-decoding-error
)
120 (let ((stream (stream-error-stream c
))
121 (octets (character-decoding-error-octets c
)))
122 (format s
"~@<decoding error on stream ~S (~S ~S): ~2I~_~
123 the octet sequence ~S cannot be decoded.~@:>"
124 stream
':external-format
(stream-external-format stream
)
127 (define-condition c-string-encoding-error
(character-encoding-error)
128 ((external-format :initarg
:external-format
:reader c-string-encoding-error-external-format
))
131 (format s
"~@<c-string encoding error (:external-format ~S): ~2I~_~
132 the character with code ~D cannot be encoded.~@:>"
133 (c-string-encoding-error-external-format c
)
134 (character-encoding-error-code c
)))))
136 (define-condition c-string-decoding-error
(character-decoding-error)
137 ((external-format :initarg
:external-format
:reader c-string-decoding-error-external-format
))
140 (format s
"~@<c-string decoding error (:external-format ~S): ~2I~_~
141 the octet sequence ~S cannot be decoded.~@:>"
142 (c-string-decoding-error-external-format c
)
143 (character-decoding-error-octets c
)))))
145 (define-condition control-stack-exhausted
(storage-condition)
148 (lambda (condition stream
)
149 (declare (ignore condition
))
151 "Control stack exhausted (no more space for function call frames). This is probably due to heavily nested or infinitely recursive function calls, or a tail call that SBCL cannot or has not optimized away."))))
153 (define-condition heap-exhausted-error
(storage-condition)
156 (lambda (condition stream
)
157 (declare (special *heap-exhausted-error-available-bytes
*
158 *heap-exhausted-error-requested-bytes
*))
159 ;; See comments in interr.lisp -- there is a method to this madness.
160 (if (and (boundp '*heap-exhausted-error-available-bytes
*)
161 (boundp '*heap-exhausted-error-requested-bytes
*))
163 "Heap exhausted: ~D bytes available, ~D requested. PROCEED WITH CAUTION!"
164 *heap-exhausted-error-available-bytes
*
165 *heap-exhausted-error-requested-bytes
*)
166 (print-unreadable-object (condition stream
))))))
168 (define-condition system-condition
(condition)
169 ((address :initarg
:address
:reader system-condition-address
:initform nil
)
170 (context :initarg
:context
:reader system-condition-context
:initform nil
)))
172 (define-condition memory-fault-error
(system-condition error
) ()
174 (lambda (condition stream
)
175 (format stream
"Unhandled memory fault at #x~X."
176 (system-condition-address condition
)))))
178 (define-condition breakpoint-error
(system-condition error
) ()
180 (lambda (condition stream
)
181 (format stream
"Unhandled breakpoint/trap at #x~X."
182 (system-condition-address condition
)))))
184 (define-condition interactive-interrupt
(system-condition serious-condition
) ()
186 (lambda (condition stream
)
187 (format stream
"Interactive interrupt at #x~X."
188 (system-condition-address condition
)))))