1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
@page
@node Debugging
@chapter Internal Debugging Interface
--- The name of this chapter needs to clearly distinguish it
from the appendix describing the debugger UI. The intro
should have a pointer to the UI appendix.
@deffn {Scheme Procedure} display-error stack port subr message args rest
@deffnx {C Function} scm_display_error (stack, port, subr, message, args, rest)
Display an error message to the output port @var{port}.
@var{stack} is the saved stack for the error, @var{subr} is
the name of the procedure in which the error occured and
@var{message} is the actual error message, which may contain
formatting instructions. These will format the arguments in
the list @var{args} accordingly. @var{rest} is currently
ignored.
@end deffn
@deffn {Scheme Procedure} display-application frame [port [indent]]
@deffnx {C Function} scm_display_application (frame, port, indent)
Display a procedure application @var{frame} to the output port
@var{port}. @var{indent} specifies the indentation of the
output.
@end deffn
@deffn {Scheme Procedure} display-backtrace stack port [first [depth]]
@deffnx {C Function} scm_display_backtrace (stack, port, first, depth)
Display a backtrace to the output port @var{port}. @var{stack}
is the stack to take the backtrace from, @var{first} specifies
where in the stack to start and @var{depth} how much frames
to display. Both @var{first} and @var{depth} can be @code{#f},
which means that default values will be used.
@end deffn
@deffn {Scheme Procedure} backtrace
@deffnx {C Function} scm_backtrace ()
Display a backtrace of the stack saved by the last error
to the current output port.
@end deffn
@deffn {Scheme Procedure} malloc-stats
Return an alist ((@var{what} . @var{n}) ...) describing number
of malloced objects.
@var{what} is the second argument to @code{scm_must_malloc},
@var{n} is the number of objects of that type currently
allocated.
@end deffn
@deffn {Scheme Procedure} debug-options-interface [setting]
@deffnx {C Function} scm_debug_options (setting)
Option interface for the debug options. Instead of using
this procedure directly, use the procedures @code{debug-enable},
@code{debug-disable}, @code{debug-set!} and @var{debug-options}.
@end deffn
@deffn {Scheme Procedure} with-traps thunk
@deffnx {C Function} scm_with_traps (thunk)
Call @var{thunk} with traps enabled.
@end deffn
@deffn {Scheme Procedure} memoized? obj
@deffnx {C Function} scm_memoized_p (obj)
Return @code{#t} if @var{obj} is memoized.
@end deffn
@deffn {Scheme Procedure} unmemoize m
@deffnx {C Function} scm_unmemoize (m)
Unmemoize the memoized expression @var{m},
@end deffn
@deffn {Scheme Procedure} memoized-environment m
@deffnx {C Function} scm_memoized_environment (m)
Return the environment of the memoized expression @var{m}.
@end deffn
@deffn {Scheme Procedure} procedure-name proc
@deffnx {C Function} scm_procedure_name (proc)
Return the name of the procedure @var{proc}
@end deffn
@deffn {Scheme Procedure} procedure-source proc
@deffnx {C Function} scm_procedure_source (proc)
Return the source of the procedure @var{proc}.
@end deffn
@deffn {Scheme Procedure} procedure-environment proc
@deffnx {C Function} scm_procedure_environment (proc)
Return the environment of the procedure @var{proc}.
@end deffn
@deffn {Scheme Procedure} debug-object? obj
@deffnx {C Function} scm_debug_object_p (obj)
Return @code{#t} if @var{obj} is a debug object.
@end deffn
@deffn {Scheme Procedure} frame-arguments frame
@deffnx {C Function} scm_frame_arguments (frame)
Return the arguments of @var{frame}.
@end deffn
@deffn {Scheme Procedure} frame-evaluating-args? frame
@deffnx {C Function} scm_frame_evaluating_args_p (frame)
Return @code{#t} if @var{frame} contains evaluated arguments.
@end deffn
@deffn {Scheme Procedure} frame-next frame
@deffnx {C Function} scm_frame_next (frame)
Return the next frame of @var{frame}, or @code{#f} if
@var{frame} is the last frame in its stack.
@end deffn
@deffn {Scheme Procedure} frame-number frame
@deffnx {C Function} scm_frame_number (frame)
Return the frame number of @var{frame}.
@end deffn
@deffn {Scheme Procedure} frame-overflow? frame
@deffnx {C Function} scm_frame_overflow_p (frame)
Return @code{#t} if @var{frame} is an overflow frame.
@end deffn
@deffn {Scheme Procedure} frame-previous frame
@deffnx {C Function} scm_frame_previous (frame)
Return the previous frame of @var{frame}, or @code{#f} if
@var{frame} is the first frame in its stack.
@end deffn
@deffn {Scheme Procedure} frame-procedure frame
@deffnx {C Function} scm_frame_procedure (frame)
Return the procedure for @var{frame}, or @code{#f} if no
procedure is associated with @var{frame}.
@end deffn
@deffn {Scheme Procedure} frame-procedure? frame
@deffnx {C Function} scm_frame_procedure_p (frame)
Return @code{#t} if a procedure is associated with @var{frame}.
@end deffn
@deffn {Scheme Procedure} frame-real? frame
@deffnx {C Function} scm_frame_real_p (frame)
Return @code{#t} if @var{frame} is a real frame.
@end deffn
@deffn {Scheme Procedure} frame-source frame
@deffnx {C Function} scm_frame_source (frame)
Return the source of @var{frame}.
@end deffn
@deffn {Scheme Procedure} frame? obj
@deffnx {C Function} scm_frame_p (obj)
Return @code{#t} if @var{obj} is a stack frame.
@end deffn
@deffn {Scheme Procedure} last-stack-frame obj
@deffnx {C Function} scm_last_stack_frame (obj)
Return a stack which consists of a single frame, which is the
last stack frame for @var{obj}. @var{obj} must be either a
debug object or a continuation.
@end deffn
@deffn {Scheme Procedure} make-stack obj . args
@deffnx {C Function} scm_make_stack (obj, args)
Create a new stack. If @var{obj} is @code{#t}, the current
evaluation stack is used for creating the stack frames,
otherwise the frames are taken from @var{obj} (which must be
either a debug object or a continuation).
@var{args} should be a list containing any combination of
integer, procedure and @code{#t} values.
These values specify various ways of cutting away uninteresting
stack frames from the top and bottom of the stack that
@code{make-stack} returns. They come in pairs like this:
@code{(@var{inner_cut_1} @var{outer_cut_1} @var{inner_cut_2}
@var{outer_cut_2} @dots{})}.
Each @var{inner_cut_N} can be @code{#t}, an integer, or a
procedure. @code{#t} means to cut away all frames up to but
excluding the first user module frame. An integer means to cut
away exactly that number of frames. A procedure means to cut
away all frames up to but excluding the application frame whose
procedure matches the specified one.
Each @var{outer_cut_N} can be an integer or a procedure. An
integer means to cut away that number of frames. A procedure
means to cut away frames down to but excluding the application
frame whose procedure matches the specified one.
If the @var{outer_cut_N} of the last pair is missing, it is
taken as 0.
@end deffn
@deffn {Scheme Procedure} stack-id stack
@deffnx {C Function} scm_stack_id (stack)
Return the identifier given to @var{stack} by @code{start-stack}.
@end deffn
@deffn {Scheme Procedure} stack-length stack
@deffnx {C Function} scm_stack_length (stack)
Return the length of @var{stack}.
@end deffn
@deffn {Scheme Procedure} stack-ref stack index
@deffnx {C Function} scm_stack_ref (stack, index)
Return the @var{index}'th frame from @var{stack}.
@end deffn
@deffn {Scheme Procedure} stack? obj
@deffnx {C Function} scm_stack_p (obj)
Return @code{#t} if @var{obj} is a calling stack.
@end deffn
@c Local Variables:
@c TeX-master: "guile.texi"
@c End:
|