1 ! Copyright (C) 2004, 2008 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: slots arrays definitions generic hashtables summary io
4 kernel math namespaces make prettyprint prettyprint.config
5 sequences assocs sequences.private strings io.styles
6 io.pathnames vectors words system splitting math.parser
7 classes.mixin classes.tuple continuations continuations.private
8 combinators generic.math classes.builtin classes compiler.units
9 generic.standard vocabs init kernel.private io.encodings
10 accessors math.order destructors source-files parser
11 classes.tuple.parser effects.parser lexer compiler.errors
12 generic.parser strings.parser vocabs.parser ;
15 GENERIC: error. ( error -- )
16 GENERIC: error-help ( error -- topic )
19 M: object error-help drop f ;
21 M: tuple error-help class ;
23 M: string error. print ;
26 error-continuation get data>> stack. ;
29 error-continuation get retain>> stack. ;
32 error-continuation get call>> callstack. ;
34 : :get ( variable -- value )
35 error-continuation get name>> assoc-stack ;
38 1- restarts get-global nth f restarts set-global restart ;
40 : :1 ( -- * ) 1 :res ;
41 : :2 ( -- * ) 2 :res ;
42 : :3 ( -- * ) 3 :res ;
44 : restart. ( restart n -- )
46 1+ dup 3 <= [ ":" % # " " % ] [ # " :res " % ] if
53 "The following restarts are available:" print
55 [ restart. ] each-index
58 : print-error ( error -- )
59 [ error. flush ] curry
60 [ global [ "Error in print-error!" print drop ] bind ]
64 error get print-error ;
66 : print-error-and-restarts ( error -- )
70 "Type :help for debugging help." print flush ;
73 [ print-error-and-restarts ] recover ;
75 : expired-error. ( obj -- )
76 "Object did not survive image save/load: " write third . ;
78 : io-error. ( error -- )
79 "I/O error: " write third print ;
81 : type-check-error. ( obj -- )
82 "Type check error" print
83 "Object: " write dup fourth short.
84 "Object type: " write dup fourth class .
85 "Expected type: " write third type>class . ;
87 : divide-by-zero-error. ( obj -- )
88 "Division by zero" print drop ;
90 : signal-error. ( obj -- )
91 "Operating system signal " write third . ;
93 : array-size-error. ( obj -- )
94 "Invalid array size: " write dup third .
95 "Maximum: " write fourth 1- . ;
97 : c-string-error. ( obj -- )
98 "Cannot convert to C string: " write third . ;
100 : ffi-error. ( obj -- )
102 dup third [ write ": " write ] when*
105 : heap-scan-error. ( obj -- )
106 "Cannot do next-object outside begin/end-scan" print drop ;
108 : undefined-symbol-error. ( obj -- )
109 "The image refers to a library or symbol that was not found"
110 " at load time" append print drop ;
112 : stack-underflow. ( obj name -- )
113 write " stack underflow" print drop ;
115 : stack-overflow. ( obj name -- )
116 write " stack overflow" print drop ;
118 : datastack-underflow. ( obj -- ) "Data" stack-underflow. ;
119 : datastack-overflow. ( obj -- ) "Data" stack-overflow. ;
120 : retainstack-underflow. ( obj -- ) "Retain" stack-underflow. ;
121 : retainstack-overflow. ( obj -- ) "Retain" stack-overflow. ;
123 : memory-error. ( error -- )
124 "Memory protection fault at address " write third .h ;
126 : primitive-error. ( error -- )
127 "Unimplemented primitive" print drop ;
129 PREDICATE: kernel-error < array
131 { [ dup empty? ] [ drop f ] }
132 { [ dup first "kernel-error" = not ] [ drop f ] }
133 [ second 0 15 between? ]
136 : kernel-errors ( error -- n errors )
138 { 0 [ expired-error. ] }
140 { 2 [ primitive-error. ] }
141 { 3 [ type-check-error. ] }
142 { 4 [ divide-by-zero-error. ] }
143 { 5 [ signal-error. ] }
144 { 6 [ array-size-error. ] }
145 { 7 [ c-string-error. ] }
147 { 9 [ heap-scan-error. ] }
148 { 10 [ undefined-symbol-error. ] }
149 { 11 [ datastack-underflow. ] }
150 { 12 [ datastack-overflow. ] }
151 { 13 [ retainstack-underflow. ] }
152 { 14 [ retainstack-overflow. ] }
153 { 15 [ memory-error. ] }
156 M: kernel-error error. dup kernel-errors case ;
158 M: kernel-error error-help kernel-errors at first ;
161 drop "No suitable method" ;
164 "Generic word " write
166 " does not define a method for the " write
167 dup object>> class pprint
169 "Dispatching on object: " write object>> short. ;
171 M: bad-slot-value summary drop "Bad store to specialized slot" ;
173 M: no-math-method summary
174 drop "No suitable arithmetic method" ;
176 M: no-next-method summary
177 drop "Executing call-next-method from least-specific method" ;
179 M: inconsistent-next-method summary
180 drop "Executing call-next-method with inconsistent parameters" ;
182 M: check-method summary
183 drop "Invalid parameters for create-method" ;
185 M: not-a-tuple summary
188 M: bad-superclass summary
189 drop "Tuple classes can only inherit from other tuple classes" ;
191 M: no-initial-value summary
192 drop "Initial value must be provided for slots specialized to this class" ;
194 M: bad-initial-value summary
195 drop "Incompatible initial value" ;
198 drop "Fall-through in cond" ;
201 drop "Fall-through in case" ;
203 M: slice-error summary
204 drop "Cannot create slice" ;
206 M: bounds-error summary drop "Sequence index out of bounds" ;
208 M: condition error. error>> error. ;
210 M: condition summary error>> summary ;
212 M: condition error-help error>> error-help ;
214 M: assert summary drop "Assertion failed" ;
217 "Assertion failed" print
218 standard-table-style [
221 [ expect>> [ [ "Expect:" write ] with-cell pprint-cell ] with-row ]
222 [ got>> [ [ "Got:" write ] with-cell pprint-cell ] with-row ] bi
225 M: immutable summary drop "Sequence is immutable" ;
227 M: redefine-error error.
228 "Re-definition of " write
232 drop "Calling a deferred word before it has been defined" ;
234 M: no-compilation-unit error.
235 "Attempting to define " write
237 " outside of a compilation unit" print ;
240 drop "Vocabulary does not exist" ;
242 M: encode-error summary drop "Character encoding error" ;
244 M: decode-error summary drop "Character decoding error" ;
246 M: bad-create summary drop "Bad parameters to create" ;
248 M: attempt-all-error summary drop "Nothing to attempt" ;
250 M: already-disposed summary drop "Attempting to operate on disposed object" ;
252 M: no-current-vocab summary
253 drop "Not in a vocabulary; IN: form required" ;
255 M: no-word-error summary
256 drop "Word not found in current vocabulary search path" ;
258 M: staging-violation summary
260 "A parsing word cannot be used in the same file it is defined in." ;
262 M: bad-number summary
263 drop "Bad number literal" ;
265 M: duplicate-slot-names summary
266 drop "Duplicate slot names" ;
268 M: invalid-slot-name summary
269 drop "Invalid slot name" ;
271 : file. ( file -- ) path>> <pathname> . ;
273 M: source-file-error error.
274 [ file>> file. ] [ error>> error. ] bi ;
276 M: source-file-error summary
279 M: source-file-error compute-restarts
280 error>> compute-restarts ;
282 M: source-file-error error-help
285 M: not-in-a-method-error summary
286 drop "call-next-method can only be called in a method definition" ;
288 GENERIC: expected>string ( obj -- str )
290 M: f expected>string drop "end of input" ;
291 M: word expected>string name>> ;
292 M: string expected>string ;
296 dup want>> expected>string write
298 got>> expected>string print ;
300 M: lexer-error error.
301 [ lexer-dump ] [ error>> error. ] bi ;
303 M: lexer-error summary
306 M: lexer-error compute-restarts
307 error>> compute-restarts ;
309 M: lexer-error error-help
312 M: object compiler-error. ( error word -- )
314 "While compiling " write pprint ": " print
318 M: bad-effect summary
319 drop "Bad stack effect declaration" ;
321 M: bad-escape summary drop "Bad escape code" ;
323 M: bad-literal-tuple summary drop "Bad literal tuple" ;
325 M: check-mixin-class summary drop "Not a mixin class" ;