-
Notifications
You must be signed in to change notification settings - Fork 15
/
CSharpBackend.pm
634 lines (557 loc) · 21.2 KB
/
CSharpBackend.pm
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
use 5.010;
use strict;
use warnings;
use utf8;
package CSharpBackend;
use Scalar::Util 'blessed';
my $VERBOSE = $ENV{NIECZA_CSHARP_VERBOSE};
# Input: A Metamodel::Unit object
# Output: A CodeGenUnit object
# each StaticSub generates <some code> for the sub's body
# we also generate <some code> to build the runtime MOP (really, a thawer using
# CIL; a thaw using a custom format would be faster)
# StaticSub : SubInfo (handled partially in CodeGen itself)
# StaticSub : (opt) static pad, some static fields
# Stash : Dictionary<string,BValue>
# Class : DynMetaObject
# Class : (opt) HOW
# deliberately omitted for now: the run_once optimization & lazy static pad
# generation & indexification
our $unit;
our $nid = 0;
our @decls;
our @thaw;
our @cgs;
our %lpeers;
our %haslet;
our $classhow;
our $libmode;
sub gsym {
my ($type, $desc) = @_;
$desc =~ s/(\W)/"_" . ord($1)/eg;
my $base = 'G' . ($nid++) . $desc;
my $full = $unit->name . "." . $base . ':f,' . $type;
wantarray ? ($full, $base) : $full;
}
my $cl_ty = 'DynMetaObject';
my $si_ty = 'SubInfo';
sub run {
local $unit = shift;
local $libmode = $unit->name ne 'MAIN';
local %lpeers;
local $nid = 0;
local @thaw;
local @decls;
local @cgs;
local $classhow;
local $Metamodel::unit = $unit;
say STDERR $unit->name if $VERBOSE;
# 0s just set up variables
# 1s set up subs
# 2s set up objects
# 3s set up relationships
$unit->visit_local_stashes(\&stash2) unless $libmode; #XXX weird timing
$unit->visit_local_packages(\&pkg0);
$unit->visit_local_subs_preorder(\&sub0);
$unit->visit_local_subs_preorder(\&sub1);
my $mod = '';
$mod .= <<EOH ;
using Niecza;
using System;
using System.Collections.Generic;
public class ${\ $unit->name } {
EOH
$mod .= <<EOM unless $libmode ;
public static void Main() {
Kernel.RunLoop(new SubInfo("boot", BOOT));
}
EOM
unless ($libmode) {
$unit->visit_units_preorder(sub {
say STDERR "UNIT2: ", $_->name if $VERBOSE;
$_->visit_local_packages(\&pkg2);
$_->visit_local_subs_preorder(\&sub2);
});
$unit->visit_units_preorder(sub {
say STDERR "UNIT3: ", $_->name if $VERBOSE;
$unit->visit_local_stashes(\&stash3) if $_ == $unit;
$_->visit_local_packages(\&pkg3);
$_->visit_local_subs_preorder(\&sub3);
});
$unit->visit_units_preorder(sub {
say STDERR "UNIT4: ", $_->name if $VERBOSE;
return if $_->bottom_ref;
my $s = $_->setting;
my $m = $_->mainline;
while ($s) {
my $su = $unit->get_unit($s);
push @thaw, CgOp::setindex("*resume_$s",
CgOp::getfield("lex", CgOp::callframe),
CgOp::newscalar(CgOp::rawsget($m->{peer}{ps})));
$s = $su->setting;
$m = $su->mainline;
}
push @thaw, CgOp::sink(CgOp::subcall(CgOp::rawsget($m->{peer}{ps})));
});
push @thaw, CgOp::return;
push @cgs, CodeGen->new(csname => 'BOOT', name => 'BOOT',
usednamed => 1, ops => CgOp::prog(@thaw))->csharp;
}
for (@decls) {
/(?:.*?\.)?(.*):f,(.*)/;
$mod .= " public static $2 $1;\n";
}
$mod .= $_ for (@cgs);
$mod .= "}\n";
$unit->{mod} = $mod;
$unit;
}
sub stash2 {
say STDERR "stash2: ", join("::", @{ $_->path }) if $VERBOSE;
my $p = $lpeers{$_} = gsym('IP6', join("_", @{ $_->path }));
push @decls, $p;
push @thaw, CgOp::rawsset($p, CgOp::fetch(CgOp::box(
CgOp::rawsget('Kernel.StashP'),
CgOp::rawnew('clr:Dictionary<string,BValue>'))));
if (@{ $_->path } == 1 && $_->path->[0] =~ /^(?:GLOBAL|PROCESS)$/) {
push @thaw, CgOp::rawsset('Kernel.' . ucfirst(lc($_->path->[0])) .
'O', CgOp::rawsget($p));
}
}
sub stash3 {
say STDERR "stash3: ", join("::", @{ $_->path }) if $VERBOSE;
my $p = $lpeers{$_};
for my $k (sort keys %{ $_->zyg }) {
my $ch = $_->zyg->{$k};
my $bit;
if (blessed($ch)) {
$bit = CgOp::newscalar(CgOp::rawsget($lpeers{$ch}));
} else {
my $chd = $unit->deref($ch);
if ($chd->isa('Metamodel::Package') &&
defined $chd->{peer}{what_var}) {
$bit = CgOp::rawsget($chd->{peer}{what_var});
}
}
next unless $bit;
push @thaw, CgOp::bset(CgOp::rawscall('Kernel.PackageLookup',
CgOp::rawsget($p), CgOp::clr_string($k)), $bit);
}
}
# xxx check for SAFE::
my %loopbacks = (
'MAny', 'Kernel.AnyMO',
'MCallFrame', 'Kernel.CallFrameMO',
'MGatherIterator', 'RxFrame.GatherIteratorMO',
'MList', 'RxFrame.ListMO',
'MMatch', 'RxFrame.MatchMO',
'PAny', 'Kernel.AnyP',
'PArray', 'Kernel.ArrayP',
'PEMPTY', 'RxFrame.EMPTYP',
'PHash', 'Kernel.HashP',
'PStr', 'Kernel.StrP',
);
sub pkg0 {
say STDERR "pkg0: ", $_->name if $VERBOSE;
return unless $_->isa('Metamodel::Class') || $_->isa('Metamodel::Role')
|| $_->isa('Metamodel::ParametricRole');
my $p = $_->{peer}{mo} = gsym($cl_ty, $_->name);
my $whv = $_->{peer}{what_var} = gsym('Variable', $_->name . '_WHAT');
my $wh6 = $_->{peer}{what_ip6} = gsym('IP6', $_->name . '_WHAT');
push @decls, $p, $whv, $wh6;
}
sub pkg2 {
say STDERR "pkg2: ", $_->name if $VERBOSE;
return unless $_->{peer};
@_ = ($_->{peer}{mo}, $_->{peer}{what_ip6}, $_->{peer}{what_var});
&pkg2_class if $_->isa('Metamodel::Class');
&pkg2_role if $_->isa('Metamodel::Role');
&pkg2_prole if $_->isa('Metamodel::ParametricRole');
}
sub create_type_object {
my $peer = shift;
push @thaw, CgOp::rawsset($peer->{what_ip6},
CgOp::rawnew('clr:DynObject', CgOp::rawsget($peer->{mo})));
push @thaw, CgOp::setfield('slots',
CgOp::cast('clr:DynObject', CgOp::rawsget($peer->{what_ip6})),
CgOp::null('clr:object[]'));
push @thaw, CgOp::setfield('typeObject', CgOp::rawsget($peer->{mo}),
CgOp::rawsget($peer->{what_ip6}));
push @thaw, CgOp::rawsset($peer->{what_var},
CgOp::newscalar(CgOp::rawsget($peer->{what_ip6})));
}
sub pkg2_role {
my ($p, $wh6, $whv) = @_;
push @thaw, CgOp::rawsset($p, CgOp::rawnew("clr:$cl_ty",
CgOp::clr_string($_->name)));
push @thaw, CgOp::rawcall(CgOp::rawsget($p), 'FillRole',
CgOp::rawnewarr('str', map { CgOp::clr_string($_) }
@{ $_->attributes }),
CgOp::rawnewarr('clr:DynMetaObject',
map { CgOp::rawsget($unit->deref($_)->{peer}{mo}) }
@{ $_->superclasses }),
CgOp::rawnewarr('clr:DynMetaObject'));
create_type_object($_->{peer});
}
sub pkg2_prole {
my ($p, $wh6, $whv) = @_;
push @thaw, CgOp::rawsset($p, CgOp::rawnew("clr:$cl_ty",
CgOp::clr_string($_->name)));
create_type_object($_->{peer});
}
sub pkg2_class {
my ($p, $wh6, $whv) = @_;
if ($unit->is_true_setting && ($_->name eq 'Scalar' ||
$_->name eq 'Sub' || $_->name eq 'Stash')) {
push @thaw, CgOp::rawsset($p,
CgOp::rawsget("Kernel." . $_->name . "MO:f,$cl_ty"));
} else {
push @thaw, CgOp::rawsset($p, CgOp::rawnew("clr:$cl_ty",
CgOp::clr_string($_->name)));
}
my $abase;
for (@{ $_->linearized_mro }) {
$abase += scalar @{ $unit->deref($_)->attributes };
}
push @thaw, CgOp::rawcall(CgOp::rawsget($p), 'FillClass',
CgOp::rawnewarr('str', map { CgOp::clr_string($_) }
@{ $_->attributes }),
CgOp::rawnewarr('str', map { CgOp::clr_string($_) }
map { @{ $unit->deref($_)->attributes } } @{ $_->linearized_mro }),
CgOp::rawnewarr('clr:DynMetaObject',
map { CgOp::rawsget($unit->deref($_)->{peer}{mo}) }
@{ $_->superclasses }),
CgOp::rawnewarr('clr:DynMetaObject',
map { CgOp::rawsget($unit->deref($_)->{peer}{mo}) }
@{ $_->linearized_mro }));
create_type_object($_->{peer});
push @thaw, CgOp::rawsset($loopbacks{'P' . $_->name}, CgOp::rawsget($wh6))
if $loopbacks{'P' . $_->name};
push @thaw, CgOp::rawsset($loopbacks{'M' . $_->name}, CgOp::rawsget($p))
if $loopbacks{'M' . $_->name};
$classhow = $wh6 if $_->name eq 'ClassHOW';
}
sub pkg3 {
say STDERR "pkg3: ", $_->name if $VERBOSE;
return unless $_->isa('Metamodel::Class') || $_->isa('Metamodel::Role');
my $p = $_->{peer}{mo};
for my $m (@{ $_->methods }) {
push @thaw, CgOp::rawcall(CgOp::rawsget($p),
($m->private ? 'AddPrivateMethod' : 'AddMethod'),
CgOp::clr_string($m->name),
CgOp::rawsget($unit->deref($m->body)->{peer}{ps}));
}
push @thaw, CgOp::rawcall(CgOp::rawsget($p), 'Invalidate');
for my $k (sort keys %{ $_->multi_regex_lists }) {
for my $b (@{ $_->multi_regex_lists->{$k} }) {
push @thaw, CgOp::rawcall(CgOp::rawsget($p), 'AddMultiRegex',
CgOp::clr_string($k),
CgOp::rawsget($unit->deref($b)->{peer}{ps}));
}
}
if ($classhow) {
push @thaw, CgOp::setfield('how', CgOp::rawsget($p), CgOp::fetch(
CgOp::box(CgOp::rawsget($classhow), CgOp::rawsget($p))));
}
}
sub enter_code {
my ($body) = @_;
my @code;
for my $ln (sort keys %{ $body->lexicals }) {
my $lx = $body->lexicals->{$ln};
next if $body->run_once && $body->spad_exists && !dynname($ln);
if ($lx->isa('Metamodel::Lexical::SubDef')) {
push @code, access_lex($body, $ln,
CgOp::newscalar(CgOp::rawscall('Kernel.MakeSub',
CgOp::rawsget($lx->body->{peer}{si}),
CgOp::callframe)));
} elsif ($lx->isa('Metamodel::Lexical::Simple')) {
my $frag;
next if $lx->noinit;
if ($lx->hash || $lx->list) {
# XXX should be SAFE::
my $imp = $_->find_lex($lx->hash ? 'Hash' : 'Array')->path;
my $var = $unit->deref($unit->get_stash_obj(@$imp))
->{peer}{what_var};
$frag = CgOp::methodcall(CgOp::rawsget($var), 'new');
} else {
$frag = CgOp::newblankrwscalar;
}
push @code, access_lex($body, $ln, $frag);
}
}
novars:
if (defined $body->signature) {
push @code, $body->signature->binder($body);
}
@code;
}
sub access_lex {
my ($body, $name, $set_to) = @_;
if ($haslet{$name}) {
return CgOp::letvar($name, $set_to);
}
my $bp = $body;
my $order = 0;
my $lex;
while ($bp) {
$lex = $bp->lexicals->{$name};
if (!$lex) {
$bp = $bp->outer;
$order++;
} elsif ($lex->isa('Metamodel::Lexical::Alias')) {
$name = $lex->to;
} else {
last;
}
}
if (!defined($lex)) {
die "Internal error: failed to resolve lexical $name in " . $body->name;
}
if ($lex->isa('Metamodel::Lexical::SubDef') ||
$lex->isa('Metamodel::Lexical::Simple')) {
if ($bp->run_once && !dynname($name)) {
return $set_to ? CgOp::rawsset($lex->{peer}, $set_to) :
CgOp::rawsget($lex->{peer});
} elsif ((my $ix = $lex->{peer}) >= 0) {
return $set_to ?
CgOp->new(op => [ rtpadputi => $order, $ix ],
zyg => [ $set_to ]) :
CgOp->new(op => [ rtpadgeti => 'Variable', $order, $ix ]);
} else {
return $set_to ?
CgOp->new(op => [ rtpadput => $order, $name ],
zyg => [ $set_to ]) :
CgOp->new(op => [ rtpadget => 'Variable', $order, $name ]);
}
} elsif ($lex->isa('Metamodel::Lexical::Stash')) {
die "cannot rebind stashes" if $set_to;
my $ref = $unit->get_stash_obj(@{ $lex->path });
my $obj = $ref && $unit->deref($ref);
return $obj->{peer} ? CgOp::rawsget($obj->{peer}{what_var}) :
CgOp::null('var');
} elsif ($lex->isa('Metamodel::Lexical::Common')) {
return $set_to ?
CgOp::bset(CgOp::rawsget($lex->{peer}), $set_to) :
CgOp::bget(CgOp::rawsget($lex->{peer}));
} elsif ($lex->isa('Metamodel::Lexical::SubImport')) {
die "cannot rebind imported subs" if $set_to;
return CgOp::newscalar(CgOp::rawsget($unit->deref($lex->ref)->{peer}{ps}));
} else {
die "unhandled $lex";
}
}
sub resolve_lex {
my ($body, $op) = @_;
my ($opc, $arg, @rest) = @{ $op->op };
if ($opc eq 'scopelex') {
my $nn = access_lex($body, $arg, $op->zyg->[0]);
#XXX
%$op = %$nn;
bless $op, ref($nn);
resolve_lex($body, $_) for @{ $op->zyg };
} elsif ($opc eq 'class_ref') {
my $cl = (@rest > 1) ? $unit->deref([ @rest ]) :
$unit->deref($unit->get_stash_obj(@{$body->find_lex(@rest)->path}));
my $nn = CgOp::rawsget($cl->{peer}{$arg});
%$op = %$nn;
bless $op, ref($nn);
} elsif ($opc eq 'let') {
local $haslet{$arg} = 1;
resolve_lex($body, $_) for @{ $op->zyg };
} else {
resolve_lex($body, $_) for @{ $op->zyg };
}
}
sub codegen_sub {
my @enter = enter_code($_);
my $ops;
# XXX sub1 will only be done once per sub, and code is never introspected
# (it's in a sucky format anyway), so this is safe, and it makes dumps
# much smaller.
my $code = delete $_->{code};
# TODO: Bind a return value here to catch non-ro sub use
if ($_->gather_hack) {
$ops = CgOp::prog(@enter, CgOp::sink($code->cgop($_)),
CgOp::rawscall('Kernel.Take', CgOp::scopedlex('EMPTY')));
} elsif ($_->parametric_role_hack) {
my $obj = $unit->deref($_->parametric_role_hack);
my @build;
push @build, CgOp::rawcall(CgOp::letvar('!mo'), "FillRole",
CgOp::rawnewarr('str', map { CgOp::clr_string($_) }
@{ $obj->attributes }),
CgOp::rawnewarr('clr:DynMetaObject',
map { CgOp::rawsget($unit->deref($_)->{peer}{mo}) }
@{ $obj->superclasses }),
CgOp::rawnewarr('clr:DynMetaObject'));
for my $m (@{ $obj->methods }) {
push @build, CgOp::rawcall(CgOp::letvar('!mo'),
($m->[2] ? 'AddPrivateMethod' : 'AddMethod'),
CgOp::clr_string($m->[0]),
CgOp::fetch(CgOp::scopedlex($m->[1])));
}
push @build, CgOp::rawcall(CgOp::letvar('!mo'), 'Invalidate');
for my $k (sort keys %{ $obj->multi_regex_lists }) {
for my $b (@{ $obj->multi_regex_lists->{$k} }) {
push @build, CgOp::rawcall(CgOp::letvar('!mo'),
'AddMultiRegex', CgOp::clr_string($k),
CgOp::fetch(CgOp::scopedlex($b)));
}
}
$ops = CgOp::prog(@enter, CgOp::sink($code->cgop($_)),
CgOp::letn("!mo", CgOp::rawnew('clr:DynMetaObject',
CgOp::clr_string($obj->name)),
"!to", CgOp::rawnew('clr:DynObject', CgOp::letvar('!mo')),
@build,
CgOp::setfield('slots', CgOp::letvar('!to'),
CgOp::null('clr:object[]')),
CgOp::setfield('typeObject', CgOp::letvar('!mo'),
CgOp::letvar('!to')),
CgOp::return(CgOp::newscalar(CgOp::letvar('!to')))));
} elsif ($_->returnable) {
$ops = CgOp::prog(@enter,
CgOp::return(CgOp::span("rstart", "rend", 0,
$code->cgop($_))),
CgOp::ehspan(4, undef, 0, "rstart", "rend", "rend"));
} else {
$ops = CgOp::prog(@enter, CgOp::return($code->cgop($_)));
}
local %haslet;
resolve_lex($_, $ops);
CodeGen->new(csname => $_->{peer}{cbase}, name => ($_->name eq 'ANON' ?
$_->{peer}{cbase} : $_->name), ops => $ops,
usednamed => $_->{peer}{uname}, minlets => $_->{peer}{nlexn});
}
sub dynname { $_[0] =~ /^.?[*?]/ }
# lumped under a sub are all the static-y lexicals
# protopads and proto-sub-instances need to exist early because methods, in
# particular, bind to them
# note: preorder
sub sub0 {
say STDERR "sub0: ", $_->name if $VERBOSE;
my $node = ($_->{peer} = {});
push @decls, ($node->{si} = gsym($si_ty, $_->name));
push @decls, ($node->{ps} = gsym('IP6', $_->name . 'PS'))
if !$_->outer || $_->outer->spad_exists;
push @decls, ($node->{pp} = gsym('Frame', $_->name . 'PP'))
if $_->spad_exists;
@$node{'cref','cbase'} = gsym('DynBlockDelegate', $_->name . 'C');
my ($nlexn, $uname) = (0,0);
for my $ln (sort keys %{ $_->lexicals }) {
my $lx = $_->lexicals->{$ln};
if ($lx->isa('Metamodel::Lexical::Common')) {
my $bv = $lx->{peer} = gsym('BValue', $lx->name);
push @decls, $bv;
}
if ($lx->isa('Metamodel::Lexical::SubDef') ||
$lx->isa('Metamodel::Lexical::Simple')) {
if (dynname($ln)) {
$lx->{peer} = -1;
$uname = 1;
} elsif ($_->run_once) {
push @decls, ($lx->{peer} = gsym('Variable', $ln));
} else {
$lx->{peer} = ($nlexn++);
}
}
}
@$node{'nlexn', 'uname'} = ($nlexn, $uname);
}
sub sub1 {
say STDERR "sub1: ", $_->name if $VERBOSE;
my $node = $_->{peer};
my $si = $node->{si};
my $cg = codegen_sub($_);
$node->{sictor} = [ $cg->subinfo_ctor_args(
($_->outer ? CgOp::rawsget($_->outer->{peer}{si}) :
CgOp::null('clr:SubInfo')),
($_->ltm ? CgOp::construct_lad($_->ltm) : CgOp::null('lad'))) ];
push @cgs, $cg->csharp;
}
sub sub2 {
say STDERR "sub2: ", $_->name if $VERBOSE;
my $node = $_->{peer};
my $si = $node->{si};
push @thaw, CgOp::rawsset($si, CgOp::rawnew("clr:$si_ty", @{ $node->{sictor} }));
if ($_->class ne 'Sub') {
my $cl = $unit->deref($unit->get_stash_obj(@{ $_->find_lex_pkg($_->class) }));
push @thaw, CgOp::setfield('mo', CgOp::rawsget($si), CgOp::rawsget($cl->{peer}{mo}));
}
my $pp = $node->{pp};
if ($pp) {
push @thaw, CgOp::rawsset($pp, CgOp::rawnew('clr:Frame',
CgOp::null('clr:Frame'), (!$_->outer ? CgOp::null('clr:Frame') :
CgOp::rawsget($_->outer->{peer}{pp})),
CgOp::rawsget($si)));
if ($node->{uname}) {
push @thaw, CgOp::setfield('lex', CgOp::rawsget($pp),
CgOp::rawnew('clr:Dictionary<string,object>'));
}
if ($node->{nlexn} > 4) {
push @thaw, CgOp::setfield('lexn', CgOp::rawsget($pp),
CgOp::rawnewzarr('clr:object', CgOp::int($node->{nlexn} - 4)));
}
}
my $ps = $node->{ps};
if ($ps) {
push @thaw, CgOp::rawsset($ps, CgOp::rawscall('Kernel.MakeSub',
CgOp::rawsget($si), !$_->outer ? CgOp::null('clr:Frame') :
CgOp::rawsget($_->outer->{peer}{pp})));
if ($_->parametric_role_hack) {
push @thaw, CgOp::rawcall(
CgOp::rawsget($unit->deref($_->parametric_role_hack)
->{peer}{mo}), "FillParametricRole", CgOp::rawsget($ps));
}
}
}
# use for SubDef / Simple only
sub protolset {
my ($body, $lname, $lex, $frag) = @_;
if ($body->run_once && !dynname($lname)) {
push @thaw, CgOp::rawsset($lex->{peer}, $frag);
} elsif ((my $ix = $lex->{peer}) >= 4) {
push @thaw, CgOp::setindex(CgOp::int($ix - 4),
CgOp::getfield('lexn', CgOp::rawsget($body->{peer}{pp})),
$frag);
} elsif ($ix >= 0) {
push @thaw, CgOp::setfield("lex$ix",
CgOp::rawsget($body->{peer}{pp}), $frag);
} else {
push @thaw, CgOp::setindex($lname,
CgOp::getfield('lex', CgOp::rawsget($body->{peer}{pp})),
$frag);
}
}
sub sub3 {
say STDERR "sub3: ", $_->name if $VERBOSE;
for my $ln (sort keys %{ $_->lexicals }) {
my $lx = $_->lexicals->{$ln};
my $frag;
if ($lx->isa('Metamodel::Lexical::Common')) {
my $stash = $unit->get_stash(@{ $lx->path });
if (!$lpeers{$stash}) {
Carp::confess("Peer for " . join("::", @{ $stash->path }) . " has gone missing!");
}
push @thaw, CgOp::rawsset($lx->{peer},
CgOp::rawscall('Kernel.PackageLookup',
CgOp::rawsget($lpeers{$stash}),
CgOp::clr_string($lx->name)));
} elsif ($lx->isa('Metamodel::Lexical::SubDef')) {
next unless $_->spad_exists;
protolset($_, $ln, $lx,
CgOp::newscalar(CgOp::rawsget($lx->body->{peer}{ps})));
} elsif ($lx->isa('Metamodel::Lexical::Simple')) {
next unless $_->spad_exists;
if ($lx->hash || $lx->list) {
# XXX should be SAFE::
my $imp = $_->find_lex($lx->hash ? 'Hash' : 'Array')->path;
my $var = $unit->deref($unit->get_stash_obj(@$imp))
->{peer}{what_var};
$frag = CgOp::methodcall(CgOp::rawsget($var), 'new');
} else {
$frag = CgOp::newblankrwscalar;
}
protolset($_, $ln, $lx, $frag);
}
}
}