forked from ruby/ruby
/
iseq.c
2470 lines (2199 loc) · 68.4 KB
/
iseq.c
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
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/**********************************************************************
iseq.c -
$Author$
created at: 2006-07-11(Tue) 09:00:03 +0900
Copyright (C) 2006 Koichi Sasada
**********************************************************************/
#include "internal.h"
#include "ruby/util.h"
#include "eval_intern.h"
#ifdef HAVE_DLADDR
# include <dlfcn.h>
#endif
/* #define RUBY_MARK_FREE_DEBUG 1 */
#include "gc.h"
#include "vm_core.h"
#include "iseq.h"
#include "id_table.h"
#include "insns.inc"
#include "insns_info.inc"
VALUE rb_cISeq;
static VALUE iseqw_new(const rb_iseq_t *iseq);
static const rb_iseq_t *iseqw_check(VALUE iseqw);
#define hidden_obj_p(obj) (!SPECIAL_CONST_P(obj) && !RBASIC(obj)->klass)
static inline VALUE
obj_resurrect(VALUE obj)
{
if (hidden_obj_p(obj)) {
switch (BUILTIN_TYPE(obj)) {
case T_STRING:
obj = rb_str_resurrect(obj);
break;
case T_ARRAY:
obj = rb_ary_resurrect(obj);
break;
}
}
return obj;
}
static void
compile_data_free(struct iseq_compile_data *compile_data)
{
if (compile_data) {
struct iseq_compile_data_storage *cur, *next;
cur = compile_data->storage_head;
while (cur) {
next = cur->next;
ruby_xfree(cur);
cur = next;
}
if (compile_data->ivar_cache_table) {
rb_id_table_free(compile_data->ivar_cache_table);
}
ruby_xfree(compile_data);
}
}
void
rb_iseq_free(const rb_iseq_t *iseq)
{
RUBY_FREE_ENTER("iseq");
if (iseq) {
if (iseq->body) {
ruby_xfree((void *)iseq->body->iseq_encoded);
ruby_xfree((void *)iseq->body->line_info_table);
ruby_xfree((void *)iseq->body->local_table);
ruby_xfree((void *)iseq->body->is_entries);
if (iseq->body->ci_entries) {
unsigned int i;
struct rb_call_info_with_kwarg *ci_kw_entries = (struct rb_call_info_with_kwarg *)&iseq->body->ci_entries[iseq->body->ci_size];
for (i=0; i<iseq->body->ci_kw_size; i++) {
const struct rb_call_info_kw_arg *kw_arg = ci_kw_entries[i].kw_arg;
ruby_xfree((void *)kw_arg);
}
ruby_xfree(iseq->body->ci_entries);
ruby_xfree(iseq->body->cc_entries);
}
ruby_xfree((void *)iseq->body->catch_table);
ruby_xfree((void *)iseq->body->param.opt_table);
if (iseq->body->param.keyword != NULL) {
ruby_xfree((void *)iseq->body->param.keyword->default_values);
ruby_xfree((void *)iseq->body->param.keyword);
}
compile_data_free(ISEQ_COMPILE_DATA(iseq));
ruby_xfree(iseq->body);
}
}
RUBY_FREE_LEAVE("iseq");
}
void
rb_iseq_mark(const rb_iseq_t *iseq)
{
RUBY_MARK_ENTER("iseq");
RUBY_GC_INFO("%s @ %s\n", RSTRING_PTR(iseq->body->location.label), RSTRING_PTR(iseq->body->location.path));
if (iseq->body) {
const struct rb_iseq_constant_body *body = iseq->body;
RUBY_MARK_UNLESS_NULL(body->mark_ary);
rb_gc_mark(body->location.label);
rb_gc_mark(body->location.base_label);
rb_gc_mark(body->location.path);
RUBY_MARK_UNLESS_NULL(body->location.absolute_path);
RUBY_MARK_UNLESS_NULL((VALUE)body->parent_iseq);
}
if (FL_TEST(iseq, ISEQ_NOT_LOADED_YET)) {
rb_gc_mark(iseq->aux.loader.obj);
}
else if (ISEQ_COMPILE_DATA(iseq) != 0) {
const struct iseq_compile_data *const compile_data = ISEQ_COMPILE_DATA(iseq);
RUBY_MARK_UNLESS_NULL(compile_data->mark_ary);
RUBY_MARK_UNLESS_NULL(compile_data->err_info);
RUBY_MARK_UNLESS_NULL(compile_data->catch_table_ary);
}
RUBY_MARK_LEAVE("iseq");
}
static size_t
param_keyword_size(const struct rb_iseq_param_keyword *pkw)
{
size_t size = 0;
if (!pkw) return size;
size += sizeof(struct rb_iseq_param_keyword);
size += sizeof(VALUE) * (pkw->num - pkw->required_num);
return size;
}
static size_t
iseq_memsize(const rb_iseq_t *iseq)
{
size_t size = 0; /* struct already counted as RVALUE size */
const struct rb_iseq_constant_body *body = iseq->body;
const struct iseq_compile_data *compile_data;
/* TODO: should we count original_iseq? */
if (body) {
struct rb_call_info_with_kwarg *ci_kw_entries = (struct rb_call_info_with_kwarg *)&body->ci_entries[body->ci_size];
size += sizeof(struct rb_iseq_constant_body);
size += body->iseq_size * sizeof(VALUE);
size += body->line_info_size * sizeof(struct iseq_line_info_entry);
size += body->local_table_size * sizeof(ID);
if (body->catch_table) {
size += iseq_catch_table_bytes(body->catch_table->size);
}
size += (body->param.opt_num + 1) * sizeof(VALUE);
size += param_keyword_size(body->param.keyword);
/* body->is_entries */
size += body->is_size * sizeof(union iseq_inline_storage_entry);
/* body->ci_entries */
size += body->ci_size * sizeof(struct rb_call_info);
size += body->ci_kw_size * sizeof(struct rb_call_info_with_kwarg);
/* body->cc_entries */
size += body->ci_size * sizeof(struct rb_call_cache);
size += body->ci_kw_size * sizeof(struct rb_call_cache);
if (ci_kw_entries) {
unsigned int i;
for (i = 0; i < body->ci_kw_size; i++) {
const struct rb_call_info_kw_arg *kw_arg = ci_kw_entries[i].kw_arg;
if (kw_arg) {
size += rb_call_info_kw_arg_bytes(kw_arg->keyword_len);
}
}
}
}
compile_data = ISEQ_COMPILE_DATA(iseq);
if (compile_data) {
struct iseq_compile_data_storage *cur;
size += sizeof(struct iseq_compile_data);
cur = compile_data->storage_head;
while (cur) {
size += cur->size + SIZEOF_ISEQ_COMPILE_DATA_STORAGE;
cur = cur->next;
}
}
return size;
}
static rb_iseq_t *
iseq_alloc(void)
{
rb_iseq_t *iseq = iseq_imemo_alloc();
iseq->body = ZALLOC(struct rb_iseq_constant_body);
return iseq;
}
static rb_iseq_location_t *
iseq_location_setup(rb_iseq_t *iseq, VALUE path, VALUE absolute_path, VALUE name, VALUE first_lineno)
{
rb_iseq_location_t *loc = &iseq->body->location;
RB_OBJ_WRITE(iseq, &loc->path, path);
if (RTEST(absolute_path) && rb_str_cmp(path, absolute_path) == 0) {
RB_OBJ_WRITE(iseq, &loc->absolute_path, path);
}
else {
RB_OBJ_WRITE(iseq, &loc->absolute_path, absolute_path);
}
RB_OBJ_WRITE(iseq, &loc->label, name);
RB_OBJ_WRITE(iseq, &loc->base_label, name);
loc->first_lineno = first_lineno;
return loc;
}
static void
set_relation(rb_iseq_t *iseq, const rb_iseq_t *piseq)
{
const VALUE type = iseq->body->type;
/* set class nest stack */
if (type == ISEQ_TYPE_TOP) {
iseq->body->local_iseq = iseq;
}
else if (type == ISEQ_TYPE_METHOD || type == ISEQ_TYPE_CLASS) {
iseq->body->local_iseq = iseq;
}
else if (piseq) {
iseq->body->local_iseq = piseq->body->local_iseq;
}
if (piseq) {
iseq->body->parent_iseq = piseq;
}
if (type == ISEQ_TYPE_MAIN) {
iseq->body->local_iseq = iseq;
}
}
void
rb_iseq_add_mark_object(const rb_iseq_t *iseq, VALUE obj)
{
/* TODO: check dedup */
rb_ary_push(ISEQ_MARK_ARY(iseq), obj);
}
static VALUE
prepare_iseq_build(rb_iseq_t *iseq,
VALUE name, VALUE path, VALUE absolute_path, VALUE first_lineno,
const rb_iseq_t *parent, enum iseq_type type,
const rb_compile_option_t *option)
{
VALUE coverage = Qfalse;
iseq->body->type = type;
set_relation(iseq, parent);
name = rb_fstring(name);
path = rb_fstring(path);
if (RTEST(absolute_path)) absolute_path = rb_fstring(absolute_path);
iseq_location_setup(iseq, path, absolute_path, name, first_lineno);
if (iseq != iseq->body->local_iseq) {
RB_OBJ_WRITE(iseq, &iseq->body->location.base_label, iseq->body->local_iseq->body->location.label);
}
RB_OBJ_WRITE(iseq, &iseq->body->mark_ary, iseq_mark_ary_create(0));
ISEQ_COMPILE_DATA(iseq) = ZALLOC(struct iseq_compile_data);
RB_OBJ_WRITE(iseq, &ISEQ_COMPILE_DATA(iseq)->err_info, Qnil);
RB_OBJ_WRITE(iseq, &ISEQ_COMPILE_DATA(iseq)->mark_ary, rb_ary_tmp_new(3));
ISEQ_COMPILE_DATA(iseq)->storage_head = ISEQ_COMPILE_DATA(iseq)->storage_current =
(struct iseq_compile_data_storage *)
ALLOC_N(char, INITIAL_ISEQ_COMPILE_DATA_STORAGE_BUFF_SIZE +
SIZEOF_ISEQ_COMPILE_DATA_STORAGE);
RB_OBJ_WRITE(iseq, &ISEQ_COMPILE_DATA(iseq)->catch_table_ary, rb_ary_tmp_new(3));
ISEQ_COMPILE_DATA(iseq)->storage_head->pos = 0;
ISEQ_COMPILE_DATA(iseq)->storage_head->next = 0;
ISEQ_COMPILE_DATA(iseq)->storage_head->size =
INITIAL_ISEQ_COMPILE_DATA_STORAGE_BUFF_SIZE;
ISEQ_COMPILE_DATA(iseq)->option = option;
ISEQ_COMPILE_DATA(iseq)->last_coverable_line = -1;
ISEQ_COMPILE_DATA(iseq)->ivar_cache_table = NULL;
if (option->coverage_enabled) {
VALUE coverages = rb_get_coverages();
if (RTEST(coverages)) {
coverage = rb_hash_lookup(coverages, path);
if (NIL_P(coverage)) coverage = Qfalse;
}
}
ISEQ_COVERAGE_SET(iseq, coverage);
return Qtrue;
}
static VALUE
cleanup_iseq_build(rb_iseq_t *iseq)
{
struct iseq_compile_data *data = ISEQ_COMPILE_DATA(iseq);
VALUE err = data->err_info;
ISEQ_COMPILE_DATA(iseq) = 0;
compile_data_free(data);
if (RTEST(err)) {
rb_funcallv(err, rb_intern("set_backtrace"), 1, &iseq->body->location.path);
rb_exc_raise(err);
}
return Qtrue;
}
static rb_compile_option_t COMPILE_OPTION_DEFAULT = {
OPT_INLINE_CONST_CACHE, /* int inline_const_cache; */
OPT_PEEPHOLE_OPTIMIZATION, /* int peephole_optimization; */
OPT_TAILCALL_OPTIMIZATION, /* int tailcall_optimization */
OPT_SPECIALISED_INSTRUCTION, /* int specialized_instruction; */
OPT_OPERANDS_UNIFICATION, /* int operands_unification; */
OPT_INSTRUCTIONS_UNIFICATION, /* int instructions_unification; */
OPT_STACK_CACHING, /* int stack_caching; */
OPT_TRACE_INSTRUCTION, /* int trace_instruction */
OPT_FROZEN_STRING_LITERAL,
OPT_DEBUG_FROZEN_STRING_LITERAL,
TRUE, /* coverage_enabled */
};
static const rb_compile_option_t COMPILE_OPTION_FALSE = {0};
static void
set_compile_option_from_hash(rb_compile_option_t *option, VALUE opt)
{
#define SET_COMPILE_OPTION(o, h, mem) \
{ VALUE flag = rb_hash_aref((h), ID2SYM(rb_intern(#mem))); \
if (flag == Qtrue) { (o)->mem = 1; } \
else if (flag == Qfalse) { (o)->mem = 0; } \
}
#define SET_COMPILE_OPTION_NUM(o, h, mem) \
{ VALUE num = rb_hash_aref(opt, ID2SYM(rb_intern(#mem))); \
if (!NIL_P(num)) (o)->mem = NUM2INT(num); \
}
SET_COMPILE_OPTION(option, opt, inline_const_cache);
SET_COMPILE_OPTION(option, opt, peephole_optimization);
SET_COMPILE_OPTION(option, opt, tailcall_optimization);
SET_COMPILE_OPTION(option, opt, specialized_instruction);
SET_COMPILE_OPTION(option, opt, operands_unification);
SET_COMPILE_OPTION(option, opt, instructions_unification);
SET_COMPILE_OPTION(option, opt, stack_caching);
SET_COMPILE_OPTION(option, opt, trace_instruction);
SET_COMPILE_OPTION(option, opt, frozen_string_literal);
SET_COMPILE_OPTION(option, opt, debug_frozen_string_literal);
SET_COMPILE_OPTION(option, opt, coverage_enabled);
SET_COMPILE_OPTION_NUM(option, opt, debug_level);
#undef SET_COMPILE_OPTION
#undef SET_COMPILE_OPTION_NUM
}
void
rb_iseq_make_compile_option(rb_compile_option_t *option, VALUE opt)
{
Check_Type(opt, T_HASH);
set_compile_option_from_hash(option, opt);
}
static void
make_compile_option(rb_compile_option_t *option, VALUE opt)
{
if (opt == Qnil) {
*option = COMPILE_OPTION_DEFAULT;
}
else if (opt == Qfalse) {
*option = COMPILE_OPTION_FALSE;
}
else if (opt == Qtrue) {
int i;
for (i = 0; i < (int)(sizeof(rb_compile_option_t) / sizeof(int)); ++i)
((int *)option)[i] = 1;
}
else if (RB_TYPE_P(opt, T_HASH)) {
*option = COMPILE_OPTION_DEFAULT;
set_compile_option_from_hash(option, opt);
}
else {
rb_raise(rb_eTypeError, "Compile option must be Hash/true/false/nil");
}
}
static VALUE
make_compile_option_value(rb_compile_option_t *option)
{
VALUE opt = rb_hash_new();
#define SET_COMPILE_OPTION(o, h, mem) \
rb_hash_aset((h), ID2SYM(rb_intern(#mem)), (o)->mem ? Qtrue : Qfalse)
#define SET_COMPILE_OPTION_NUM(o, h, mem) \
rb_hash_aset((h), ID2SYM(rb_intern(#mem)), INT2NUM((o)->mem))
{
SET_COMPILE_OPTION(option, opt, inline_const_cache);
SET_COMPILE_OPTION(option, opt, peephole_optimization);
SET_COMPILE_OPTION(option, opt, tailcall_optimization);
SET_COMPILE_OPTION(option, opt, specialized_instruction);
SET_COMPILE_OPTION(option, opt, operands_unification);
SET_COMPILE_OPTION(option, opt, instructions_unification);
SET_COMPILE_OPTION(option, opt, stack_caching);
SET_COMPILE_OPTION(option, opt, trace_instruction);
SET_COMPILE_OPTION(option, opt, frozen_string_literal);
SET_COMPILE_OPTION(option, opt, debug_frozen_string_literal);
SET_COMPILE_OPTION(option, opt, coverage_enabled);
SET_COMPILE_OPTION_NUM(option, opt, debug_level);
}
#undef SET_COMPILE_OPTION
#undef SET_COMPILE_OPTION_NUM
return opt;
}
rb_iseq_t *
rb_iseq_new(NODE *node, VALUE name, VALUE path, VALUE absolute_path,
const rb_iseq_t *parent, enum iseq_type type)
{
return rb_iseq_new_with_opt(node, name, path, absolute_path, INT2FIX(0), parent, type,
&COMPILE_OPTION_DEFAULT);
}
rb_iseq_t *
rb_iseq_new_top(NODE *node, VALUE name, VALUE path, VALUE absolute_path, const rb_iseq_t *parent)
{
return rb_iseq_new_with_opt(node, name, path, absolute_path, INT2FIX(0), parent, ISEQ_TYPE_TOP,
&COMPILE_OPTION_DEFAULT);
}
rb_iseq_t *
rb_iseq_new_main(NODE *node, VALUE path, VALUE absolute_path, const rb_iseq_t *parent)
{
return rb_iseq_new_with_opt(node, rb_fstring_cstr("<main>"),
path, absolute_path, INT2FIX(0),
parent, ISEQ_TYPE_MAIN, &COMPILE_OPTION_DEFAULT);
}
static inline rb_iseq_t *
iseq_translate(rb_iseq_t *iseq)
{
if (rb_respond_to(rb_cISeq, rb_intern("translate"))) {
VALUE v1 = iseqw_new(iseq);
VALUE v2 = rb_funcall(rb_cISeq, rb_intern("translate"), 1, v1);
if (v1 != v2 && CLASS_OF(v2) == rb_cISeq) {
iseq = (rb_iseq_t *)iseqw_check(v2);
}
}
return iseq;
}
rb_iseq_t *
rb_iseq_new_with_opt(NODE *node, VALUE name, VALUE path, VALUE absolute_path,
VALUE first_lineno, const rb_iseq_t *parent,
enum iseq_type type, const rb_compile_option_t *option)
{
/* TODO: argument check */
rb_iseq_t *iseq = iseq_alloc();
if (!option) option = &COMPILE_OPTION_DEFAULT;
prepare_iseq_build(iseq, name, path, absolute_path, first_lineno, parent, type, option);
rb_iseq_compile_node(iseq, node);
cleanup_iseq_build(iseq);
return iseq_translate(iseq);
}
const rb_iseq_t *
rb_iseq_load_iseq(VALUE fname)
{
VALUE iseqv = rb_check_funcall(rb_cISeq, rb_intern("load_iseq"), 1, &fname);
if (!SPECIAL_CONST_P(iseqv) && RBASIC_CLASS(iseqv) == rb_cISeq) {
return iseqw_check(iseqv);
}
return NULL;
}
#define CHECK_ARRAY(v) rb_convert_type((v), T_ARRAY, "Array", "to_ary")
#define CHECK_HASH(v) rb_convert_type((v), T_HASH, "Hash", "to_hash")
#define CHECK_STRING(v) rb_convert_type((v), T_STRING, "String", "to_str")
#define CHECK_SYMBOL(v) rb_convert_type((v), T_SYMBOL, "Symbol", "to_sym")
static inline VALUE CHECK_INTEGER(VALUE v) {(void)NUM2LONG(v); return v;}
static enum iseq_type
iseq_type_from_sym(VALUE type)
{
const ID id_top = rb_intern("top");
const ID id_method = rb_intern("method");
const ID id_block = rb_intern("block");
const ID id_class = rb_intern("class");
const ID id_rescue = rb_intern("rescue");
const ID id_ensure = rb_intern("ensure");
const ID id_eval = rb_intern("eval");
const ID id_main = rb_intern("main");
const ID id_defined_guard = rb_intern("defined_guard");
/* ensure all symbols are static or pinned down before
* conversion */
const ID typeid = rb_check_id(&type);
if (typeid == id_top) return ISEQ_TYPE_TOP;
if (typeid == id_method) return ISEQ_TYPE_METHOD;
if (typeid == id_block) return ISEQ_TYPE_BLOCK;
if (typeid == id_class) return ISEQ_TYPE_CLASS;
if (typeid == id_rescue) return ISEQ_TYPE_RESCUE;
if (typeid == id_ensure) return ISEQ_TYPE_ENSURE;
if (typeid == id_eval) return ISEQ_TYPE_EVAL;
if (typeid == id_main) return ISEQ_TYPE_MAIN;
if (typeid == id_defined_guard) return ISEQ_TYPE_DEFINED_GUARD;
return (enum iseq_type)-1;
}
static VALUE
iseq_load(VALUE data, const rb_iseq_t *parent, VALUE opt)
{
rb_iseq_t *iseq = iseq_alloc();
VALUE magic, version1, version2, format_type, misc;
VALUE name, path, absolute_path, first_lineno;
VALUE type, body, locals, params, exception;
st_data_t iseq_type;
rb_compile_option_t option;
int i = 0;
/* [magic, major_version, minor_version, format_type, misc,
* label, path, first_lineno,
* type, locals, args, exception_table, body]
*/
data = CHECK_ARRAY(data);
magic = CHECK_STRING(rb_ary_entry(data, i++));
version1 = CHECK_INTEGER(rb_ary_entry(data, i++));
version2 = CHECK_INTEGER(rb_ary_entry(data, i++));
format_type = CHECK_INTEGER(rb_ary_entry(data, i++));
misc = CHECK_HASH(rb_ary_entry(data, i++));
((void)magic, (void)version1, (void)version2, (void)format_type);
name = CHECK_STRING(rb_ary_entry(data, i++));
path = CHECK_STRING(rb_ary_entry(data, i++));
absolute_path = rb_ary_entry(data, i++);
absolute_path = NIL_P(absolute_path) ? Qnil : CHECK_STRING(absolute_path);
first_lineno = CHECK_INTEGER(rb_ary_entry(data, i++));
type = CHECK_SYMBOL(rb_ary_entry(data, i++));
locals = CHECK_ARRAY(rb_ary_entry(data, i++));
params = CHECK_HASH(rb_ary_entry(data, i++));
exception = CHECK_ARRAY(rb_ary_entry(data, i++));
body = CHECK_ARRAY(rb_ary_entry(data, i++));
iseq->body->local_iseq = iseq;
iseq_type = iseq_type_from_sym(type);
if (iseq_type == (enum iseq_type)-1) {
rb_raise(rb_eTypeError, "unsupport type: :%"PRIsVALUE, rb_sym2str(type));
}
make_compile_option(&option, opt);
option.peephole_optimization = FALSE; /* because peephole optimization can modify original iseq */
prepare_iseq_build(iseq, name, path, absolute_path, first_lineno,
parent, (enum iseq_type)iseq_type, &option);
rb_iseq_build_from_ary(iseq, misc, locals, params, exception, body);
cleanup_iseq_build(iseq);
return iseqw_new(iseq);
}
/*
* :nodoc:
*/
static VALUE
iseq_s_load(int argc, VALUE *argv, VALUE self)
{
VALUE data, opt=Qnil;
rb_scan_args(argc, argv, "11", &data, &opt);
return iseq_load(data, NULL, opt);
}
VALUE
rb_iseq_load(VALUE data, VALUE parent, VALUE opt)
{
return iseq_load(data, RTEST(parent) ? (rb_iseq_t *)parent : NULL, opt);
}
rb_iseq_t *
rb_iseq_compile_with_option(VALUE src, VALUE file, VALUE absolute_path, VALUE line, const struct rb_block *base_block, VALUE opt)
{
rb_thread_t *th = GET_THREAD();
rb_iseq_t *iseq = NULL;
const rb_iseq_t *const parent = base_block ? vm_block_iseq(base_block) : NULL;
rb_compile_option_t option;
const enum iseq_type type = parent ? ISEQ_TYPE_EVAL : ISEQ_TYPE_TOP;
#if !defined(__GNUC__) || (__GNUC__ == 4 && __GNUC_MINOR__ == 8)
# define INITIALIZED volatile /* suppress warnings by gcc 4.8 */
#else
# define INITIALIZED /* volatile */
#endif
NODE *(*parse)(VALUE vparser, VALUE fname, VALUE file, int start);
int ln;
NODE *INITIALIZED node;
/* safe results first */
make_compile_option(&option, opt);
ln = NUM2INT(line);
StringValueCStr(file);
if (RB_TYPE_P(src, T_FILE)) {
parse = rb_parser_compile_file_path;
}
else {
parse = rb_parser_compile_string_path;
StringValue(src);
}
{
const VALUE parser = rb_parser_new();
rb_parser_set_context(parser, base_block, FALSE);
node = (*parse)(parser, file, src, ln);
}
if (!node) {
rb_exc_raise(th->errinfo);
}
else {
INITIALIZED VALUE label = parent ?
parent->body->location.label :
rb_fstring_cstr("<compiled>");
iseq = rb_iseq_new_with_opt(node, label, file, absolute_path, line,
parent, type, &option);
}
return iseq;
}
rb_iseq_t *
rb_iseq_compile(VALUE src, VALUE file, VALUE line)
{
return rb_iseq_compile_with_option(src, file, Qnil, line, 0, Qnil);
}
rb_iseq_t *
rb_iseq_compile_on_base(VALUE src, VALUE file, VALUE line, const struct rb_block *base_block)
{
return rb_iseq_compile_with_option(src, file, Qnil, line, base_block, Qnil);
}
VALUE
rb_iseq_path(const rb_iseq_t *iseq)
{
return iseq->body->location.path;
}
VALUE
rb_iseq_absolute_path(const rb_iseq_t *iseq)
{
return iseq->body->location.absolute_path;
}
VALUE
rb_iseq_label(const rb_iseq_t *iseq)
{
return iseq->body->location.label;
}
VALUE
rb_iseq_base_label(const rb_iseq_t *iseq)
{
return iseq->body->location.base_label;
}
VALUE
rb_iseq_first_lineno(const rb_iseq_t *iseq)
{
return iseq->body->location.first_lineno;
}
VALUE
rb_iseq_method_name(const rb_iseq_t *iseq)
{
const rb_iseq_t *local_iseq;
local_iseq = iseq->body->local_iseq;
if (local_iseq->body->type == ISEQ_TYPE_METHOD) {
return local_iseq->body->location.base_label;
}
else {
return Qnil;
}
}
VALUE
rb_iseq_coverage(const rb_iseq_t *iseq)
{
return ISEQ_COVERAGE(iseq);
}
/* define wrapper class methods (RubyVM::InstructionSequence) */
static void
iseqw_mark(void *ptr)
{
rb_gc_mark((VALUE)ptr);
}
static size_t
iseqw_memsize(const void *ptr)
{
return iseq_memsize((const rb_iseq_t *)ptr);
}
static const rb_data_type_t iseqw_data_type = {
"T_IMEMO/iseq",
{iseqw_mark, NULL, iseqw_memsize,},
0, 0, RUBY_TYPED_FREE_IMMEDIATELY|RUBY_TYPED_WB_PROTECTED
};
static VALUE
iseqw_new(const rb_iseq_t *iseq)
{
union { const rb_iseq_t *in; void *out; } deconst;
VALUE obj;
deconst.in = iseq;
obj = TypedData_Wrap_Struct(rb_cISeq, &iseqw_data_type, deconst.out);
RB_OBJ_WRITTEN(obj, Qundef, iseq);
return obj;
}
VALUE
rb_iseqw_new(const rb_iseq_t *iseq)
{
return iseqw_new(iseq);
}
/*
* call-seq:
* InstructionSequence.compile(source[, file[, path[, line[, options]]]]) -> iseq
* InstructionSequence.new(source[, file[, path[, line[, options]]]]) -> iseq
*
* Takes +source+, a String of Ruby code and compiles it to an
* InstructionSequence.
*
* Optionally takes +file+, +path+, and +line+ which describe the filename,
* absolute path and first line number of the ruby code in +source+ which are
* metadata attached to the returned +iseq+.
*
* +options+, which can be +true+, +false+ or a +Hash+, is used to
* modify the default behavior of the Ruby iseq compiler.
*
* For details regarding valid compile options see ::compile_option=.
*
* RubyVM::InstructionSequence.compile("a = 1 + 2")
* #=> <RubyVM::InstructionSequence:<compiled>@<compiled>>
*
*/
static VALUE
iseqw_s_compile(int argc, VALUE *argv, VALUE self)
{
VALUE src, file = Qnil, path = Qnil, line = INT2FIX(1), opt = Qnil;
rb_secure(1);
rb_scan_args(argc, argv, "14", &src, &file, &path, &line, &opt);
if (NIL_P(file)) file = rb_fstring_cstr("<compiled>");
if (NIL_P(line)) line = INT2FIX(1);
return iseqw_new(rb_iseq_compile_with_option(src, file, path, line, 0, opt));
}
/*
* call-seq:
* InstructionSequence.compile_file(file[, options]) -> iseq
*
* Takes +file+, a String with the location of a Ruby source file, reads,
* parses and compiles the file, and returns +iseq+, the compiled
* InstructionSequence with source location metadata set.
*
* Optionally takes +options+, which can be +true+, +false+ or a +Hash+, to
* modify the default behavior of the Ruby iseq compiler.
*
* For details regarding valid compile options see ::compile_option=.
*
* # /tmp/hello.rb
* puts "Hello, world!"
*
* # elsewhere
* RubyVM::InstructionSequence.compile_file("/tmp/hello.rb")
* #=> <RubyVM::InstructionSequence:<main>@/tmp/hello.rb>
*/
static VALUE
iseqw_s_compile_file(int argc, VALUE *argv, VALUE self)
{
VALUE file, line = INT2FIX(1), opt = Qnil;
VALUE parser;
VALUE f;
NODE *node;
const char *fname;
rb_compile_option_t option;
rb_secure(1);
rb_scan_args(argc, argv, "11", &file, &opt);
FilePathValue(file);
file = rb_fstring(file); /* rb_io_t->pathv gets frozen anyways */
fname = StringValueCStr(file);
f = rb_file_open_str(file, "r");
parser = rb_parser_new();
node = rb_parser_compile_file(parser, fname, f, NUM2INT(line));
rb_io_close(f);
make_compile_option(&option, opt);
return iseqw_new(rb_iseq_new_with_opt(node, rb_fstring_cstr("<main>"),
file,
rb_realpath_internal(Qnil, file, 1),
line, NULL, ISEQ_TYPE_TOP, &option));
}
/*
* call-seq:
* InstructionSequence.compile_option = options
*
* Sets the default values for various optimizations in the Ruby iseq
* compiler.
*
* Possible values for +options+ include +true+, which enables all options,
* +false+ which disables all options, and +nil+ which leaves all options
* unchanged.
*
* You can also pass a +Hash+ of +options+ that you want to change, any
* options not present in the hash will be left unchanged.
*
* Possible option names (which are keys in +options+) which can be set to
* +true+ or +false+ include:
*
* * +:inline_const_cache+
* * +:instructions_unification+
* * +:operands_unification+
* * +:peephole_optimization+
* * +:specialized_instruction+
* * +:stack_caching+
* * +:tailcall_optimization+
* * +:trace_instruction+
*
* Additionally, +:debug_level+ can be set to an integer.
*
* These default options can be overwritten for a single run of the iseq
* compiler by passing any of the above values as the +options+ parameter to
* ::new, ::compile and ::compile_file.
*/
static VALUE
iseqw_s_compile_option_set(VALUE self, VALUE opt)
{
rb_compile_option_t option;
rb_secure(1);
make_compile_option(&option, opt);
COMPILE_OPTION_DEFAULT = option;
return opt;
}
/*
* call-seq:
* InstructionSequence.compile_option -> options
*
* Returns a hash of default options used by the Ruby iseq compiler.
*
* For details, see InstructionSequence.compile_option=.
*/
static VALUE
iseqw_s_compile_option_get(VALUE self)
{
return make_compile_option_value(&COMPILE_OPTION_DEFAULT);
}
static const rb_iseq_t *
iseqw_check(VALUE iseqw)
{
rb_iseq_t *iseq = DATA_PTR(iseqw);
if (!iseq->body) {
ibf_load_iseq_complete(iseq);
}
if (!iseq->body->location.label) {
rb_raise(rb_eTypeError, "uninitialized InstructionSequence");
}
return iseq;
}
const rb_iseq_t *
rb_iseqw_to_iseq(VALUE iseqw)
{
return iseqw_check(iseqw);
}
/*
* call-seq:
* iseq.eval -> obj
*
* Evaluates the instruction sequence and returns the result.
*
* RubyVM::InstructionSequence.compile("1 + 2").eval #=> 3
*/
static VALUE
iseqw_eval(VALUE self)
{
rb_secure(1);
return rb_iseq_eval(iseqw_check(self));
}
/*
* Returns a human-readable string representation of this instruction
* sequence, including the #label and #path.
*/
static VALUE
iseqw_inspect(VALUE self)
{
const rb_iseq_t *iseq = iseqw_check(self);
if (!iseq->body->location.label) {
return rb_sprintf("#<%s: uninitialized>", rb_obj_classname(self));
}
else {
return rb_sprintf("<%s:%s@%s>",
rb_obj_classname(self),
RSTRING_PTR(iseq->body->location.label), RSTRING_PTR(iseq->body->location.path));
}
}
/*
* Returns the path of this instruction sequence.
*
* <code><compiled></code> if the iseq was evaluated from a string.
*
* For example, using irb:
*
* iseq = RubyVM::InstructionSequence.compile('num = 1 + 2')
* #=> <RubyVM::InstructionSequence:<compiled>@<compiled>>
* iseq.path
* #=> "<compiled>"
*
* Using ::compile_file:
*
* # /tmp/method.rb
* def hello
* puts "hello, world"
* end
*
* # in irb
* > iseq = RubyVM::InstructionSequence.compile_file('/tmp/method.rb')
* > iseq.path #=> /tmp/method.rb
*/
static VALUE
iseqw_path(VALUE self)
{
return rb_iseq_path(iseqw_check(self));
}
/*
* Returns the absolute path of this instruction sequence.
*
* +nil+ if the iseq was evaluated from a string.
*
* For example, using ::compile_file:
*
* # /tmp/method.rb
* def hello
* puts "hello, world"
* end
*
* # in irb
* > iseq = RubyVM::InstructionSequence.compile_file('/tmp/method.rb')
* > iseq.absolute_path #=> /tmp/method.rb
*/
static VALUE