File: print.c

package info (click to toggle)
gnu-smalltalk 3.2.4-2.1
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 32,688 kB
  • ctags: 14,104
  • sloc: ansic: 87,424; sh: 22,729; asm: 8,465; perl: 4,513; cpp: 3,548; xml: 1,669; awk: 1,581; yacc: 1,357; makefile: 1,237; lisp: 855; lex: 843; sed: 258; objc: 124
file content (417 lines) | stat: -rw-r--r-- 11,528 bytes parent folder | download | duplicates (4)
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
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
/******************************** -*- C -*- ****************************
 *
 *	OOP printing and debugging module
 *
 *
 ***********************************************************************/

/***********************************************************************
 *
 * Copyright 1988,89,90,91,92,94,95,99,2000,2001,2002,2003,2006,2009
 * Free Software Foundation, Inc.
 * Written by Steve Byrne.
 *
 * This file is part of GNU Smalltalk.
 *
 * GNU Smalltalk is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2, or (at your option) any later 
 * version.
 * 
 * Linking GNU Smalltalk statically or dynamically with other modules is
 * making a combined work based on GNU Smalltalk.  Thus, the terms and
 * conditions of the GNU General Public License cover the whole
 * combination.
 *
 * In addition, as a special exception, the Free Software Foundation
 * give you permission to combine GNU Smalltalk with free software
 * programs or libraries that are released under the GNU LGPL and with
 * independent programs running under the GNU Smalltalk virtual machine.
 *
 * You may copy and distribute such a system following the terms of the
 * GNU GPL for GNU Smalltalk and the licenses of the other code
 * concerned, provided that you include the source code of that other
 * code when and as the GNU GPL requires distribution of source code.
 *
 * Note that people who make modified versions of GNU Smalltalk are not
 * obligated to grant this special exception for their modified
 * versions; it is their choice whether to do so.  The GNU General
 * Public License gives permission to release a modified version without
 * this exception; this exception also makes it possible to release a
 * modified version which carries forward this exception.
 *
 * GNU Smalltalk is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * GNU Smalltalk; see the file COPYING.  If not, write to the Free Software
 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  
 *
 ***********************************************************************/


#include "gstpriv.h"
#include "snprintfv/mem.h"


/* Print a Character OOP to a snprintfv stream, STREAM.  */
static void print_char_to_stream (STREAM *stream,
				  OOP oop);

/* Print a String OOP to a snprintfv stream, STREAM.  */
static void print_string_to_stream (STREAM *stream,
				    OOP string);

/* Print an Association OOP's key to a snprintfv stream, STREAM.  */
static void print_association_key_to_stream (STREAM *stream,
					     OOP associationOOP);

/* Print a Class OOP's name to a snprintfv stream, STREAM.  */
static void print_class_name_to_stream (STREAM *stream,
					OOP class_oop);

/* Print a brief description of an OOP to a snprintfv stream, STREAM.  */
static void print_oop_constructor_to_stream (STREAM *stream,
					     OOP oop);

/* The main routine to handle the %O modifier to printf.  %#O prints
   Strings and Symbols without the leading # or the enclosing single
   quotes, while %+O expects that an Association is passed and prints
   its key.  */
static void printf_oop (STREAM *stream,
		        struct printf_info *info,
        		const void *const *args);

static int printf_oop_arginfo (struct printf_info *info,
			       size_t n,
                               int *argtypes);



void
_gst_print_object (OOP oop)
{
  printf ("%O", oop);
  fflush (stdout);
}

void
print_char_to_stream (STREAM *stream, OOP oop)
{
  int val = CHAR_OOP_VALUE (oop);
  if (OOP_CLASS (oop) == _gst_char_class && val > 127)
    stream_printf (stream, "Character value: 16r%02X", val);

  else if (val >= 32 && val <= 126)
    stream_printf (stream, "$%c", val);
  else if (val < 32)
    stream_printf (stream, "$<%d>", val);
  else
    stream_printf (stream, "$<16r%04X>", val);
}

void
print_string_to_stream (STREAM *stream, OOP string)
{
  int len;

  len = _gst_string_oop_len (string);
  if (!len)
    return;

  stream_printf (stream, "%.*s", len, (char *) (OOP_TO_OBJ (string)->data));
}

void
print_association_key_to_stream (STREAM *stream, OOP associationOOP)
{
  gst_association association;

  if (!IS_OOP (associationOOP)
      || !is_a_kind_of (OOP_CLASS(associationOOP), _gst_lookup_key_class))
    {
      stream_printf (stream, "<non-association %O in association context>",
                     associationOOP);
      return;
    }

  association = (gst_association) OOP_TO_OBJ (associationOOP);
  if (OOP_CLASS (association->key) != _gst_symbol_class)
    stream_printf (stream, "<unprintable key type>");
  else
    stream_printf (stream, "%#O", association->key);
}

void
print_class_name_to_stream (STREAM *stream, OOP class_oop)
{
  gst_class class;
  class = (gst_class) OOP_TO_OBJ (class_oop);
  if (IS_A_CLASS (class_oop) && !IS_NIL (class->name))
    print_string_to_stream (stream, class->name);
  else if (IS_A_CLASS (OOP_CLASS (class_oop)))
    {
      stream_printf (stream, "<unnamed ");
      print_class_name_to_stream (stream, OOP_CLASS (class_oop));
      stream_printf (stream, ">");
    }
  else
    stream_printf (stream, "<unnamed class>");
}

void
print_oop_constructor_to_stream (STREAM *stream, OOP oop)
{
  intptr_t instanceSpec;
  OOP class_oop;

  class_oop = OOP_CLASS (oop);
  print_class_name_to_stream (stream, class_oop);

  instanceSpec = CLASS_INSTANCE_SPEC (class_oop);
  if (instanceSpec & ISP_ISINDEXABLE)
    stream_printf (stream, " new: %zu ", NUM_INDEXABLE_FIELDS (oop));

  else
    stream_printf (stream, " new ");

  if (_gst_regression_testing)
    stream_printf (stream, "\"<0>\"");
  else
    stream_printf (stream, "\"<%p>\"", oop);
}

void
printf_oop (STREAM *stream,
	    struct printf_info *info,
            const void *const *args)
{
  OOP oop = (OOP) (args[0]);

  if (info->showsign)
    {
      print_association_key_to_stream (stream, oop);
      return;
    }

  if (IS_INT (oop))
    stream_printf (stream, "%td", TO_INT (oop));

  else if (IS_NIL (oop))
    stream_printf (stream, "nil");

  else if (oop == _gst_true_oop)
    stream_printf (stream, "true");

  else if (oop == _gst_false_oop)
    stream_printf (stream, "false");

  else if (OOP_CLASS (oop) == _gst_char_class
	   || OOP_CLASS (oop) == _gst_unicode_character_class)
    print_char_to_stream (stream, oop);

  else if (OOP_CLASS (oop) == _gst_floatd_class)
    {
      double f = FLOATD_OOP_VALUE (oop);
      char buf[100], *p;
      p = buf + sprintf (buf, "%#.*g",
			 (_gst_regression_testing ? 6 : DBL_DIG), f);
      for (; p >= buf; p--)
        if (*p == 'e')
	  {
	    *p = 'd';
	    break;
	  }

      stream_puts (buf, stream);
    }

  else if (OOP_CLASS (oop) == _gst_floate_class)
    {
      double f = FLOATE_OOP_VALUE (oop);
      stream_printf (stream, "%#.*g",
		     (_gst_regression_testing ? 6 : FLT_DIG), f);
    }

  else if (OOP_CLASS (oop) == _gst_floatq_class)
    {
      long double f = FLOATQ_OOP_VALUE (oop);
      char buf[100], *p;
      p = buf + sprintf (buf, "%#.*Lg",
			 (_gst_regression_testing ? 6 : LDBL_DIG), f);
      for (; p >= buf; p--)
        if (*p == 'e')
	  {
	    *p = 'q';
	    break;
	  }

      stream_puts (buf, stream);
    }

  else if (OOP_CLASS (oop) == _gst_symbol_class)
    {
      if (!info->alt)
	stream_printf (stream, "#");
      print_string_to_stream (stream, oop);
    }

  else if (OOP_CLASS (oop) == _gst_string_class)
    {
      /* ### have to quote embedded quote chars */
      if (!info->alt)
        stream_printf (stream, "'");
      print_string_to_stream (stream, oop);
      if (!info->alt)
        stream_printf (stream, "'");
    }

  else if (IS_A_METACLASS (oop))
    {
      OOP class_oop = _gst_find_an_instance (oop);
      if (IS_NIL (class_oop))
        print_oop_constructor_to_stream (stream, oop);
      else
	{
	  print_class_name_to_stream (stream, class_oop);
	  stream_printf (stream, " class");
	}
    }

  else if (IS_A_CLASS (oop))
    print_class_name_to_stream (stream, oop);

  else
    print_oop_constructor_to_stream (stream, oop);

  fflush (stdout);
}

int
printf_oop_arginfo (struct printf_info *info,
		    size_t n,
		    int *argtypes)
{
  /* We always take exactly one argument and this is a pointer to the
     structure.  */
  if (n > 0)
    argtypes[0] = PA_POINTER;
  return 1;
}


void
_gst_classify_addr (void *addr)
{
  if (IS_INT (addr))
    printf ("Smalltalk SmallInteger %td\n", TO_INT (addr));

  else if (IS_OOP_ADDR (addr))
    _gst_display_oop (addr);

  else
    _gst_display_object (addr);

  fflush (stdout);
}

void
_gst_display_oop_short (OOP oop)
{
  if (IS_OOP_FREE (oop))
    printf ("%-10p   Free\n", oop);
  else
    {
      printf ("%-10p   %-10p  %-10s %-10s %-10s\n", oop, oop->object,
            oop->flags & F_CONTEXT ? "Context" :
            oop->flags & F_WEAK ? "Weak" :
            oop->flags & F_EPHEMERON ? "Ephemeron" : "",

            oop->flags & F_FIXED ? "Fixed" :
            oop->flags & F_LOADED ? "Permanent" :
            oop->flags & F_OLD ? "Old" :
            oop->flags & _gst_mem.active_flag ? "To-space" : "From-space",

	    IS_EDEN_ADDR (oop->object) ? "Eden" :
	    IS_SURVIVOR_ADDR (oop->object, 0) ? "Surv (Even)" :
	    IS_SURVIVOR_ADDR (oop->object, 1) ? "Surv (Odd)" :
            oop->flags & F_POOLED ? "Pooled" :
	    oop->flags & F_REACHABLE ? "Old/marked" : "Old");
    }
}

void
_gst_display_oop (OOP oop)
{
  if (!IS_OOP_ADDR (oop))
    {
      printf ("Parameter %p does not appear to be an OOP!\n", oop);
      return;
    }

  if (IS_OOP_FREE (oop))
    printf ("%-10p   Free\n", oop);
  else
    {
      printf ("%-10p   %-10p  %-10s %-10s %-10s", oop, oop->object,
            oop->flags & F_CONTEXT ? "Context" :
            oop->flags & F_WEAK ? "Weak" :
            oop->flags & F_EPHEMERON ? "Ephemeron" : "",

            oop->flags & F_FIXED ? "Fixed" :
            oop->flags & F_LOADED ? "Permanent" :
            oop->flags & F_OLD ? "Old" :
            oop->flags & _gst_mem.active_flag ? "To-space" : "From-space",

	    IS_EDEN_ADDR (oop->object) ? "Eden" :
	    IS_SURVIVOR_ADDR (oop->object, 0) ? "Surv (Even)" :
	    IS_SURVIVOR_ADDR (oop->object, 1) ? "Surv (Odd)" :
            oop->flags & F_POOLED ? "Pooled" :
	    oop->flags & F_REACHABLE ? "Old/marked" : "Old");

      if (IS_OOP_ADDR (oop->object->objClass))
        printf ("   %O (%O)\n", oop->object->objClass, oop->object->objSize);
      else
        printf ("   (invalid class)\n");
    }
}

void
_gst_display_object (gst_object obj)
{
  if (IS_OOP_ADDR (obj))
    {
      printf ("Parameter %p appears to be an OOP!\n", obj);
      return;
    }

  printf ("Object at %p (%s)",
	  obj,
	  IS_EDEN_ADDR (obj) ? "Eden" :
	  IS_SURVIVOR_ADDR (obj, 0) ? "Even" :
	  IS_SURVIVOR_ADDR (obj, 1) ? "Odd" : "Old");

  if (IS_OOP_ADDR (obj->objClass))
    printf (", size %O (%zu OOPs), class %O\n",
	    obj->objSize, NUM_OOPS (obj), obj->objClass);
  else
    printf (", contains invalid data\n");
}



void _gst_init_snprintfv ()
{
  spec_entry *spec;

  snv_malloc = xmalloc;
  snv_realloc = xrealloc;
  snv_free = xfree;
  spec = register_printf_function ('O', printf_generic,
				   printf_oop_arginfo);

  spec->user = printf_oop;
}