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po: Update Lithuanian translation.
[wine/multimedia.git] / dlls / vbscript / compile.c
blob846a55def40cd219b273e1c3b4b9ca2910f7ef70
1 /*
2 * Copyright 2011 Jacek Caban for CodeWeavers
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17 */
18
19 #include <assert.h>
20
21 #include "vbscript.h"
22 #include "parse.h"
23 #include "parser.tab.h"
24
25 #include "wine/debug.h"
26
27 WINE_DEFAULT_DEBUG_CHANNEL(vbscript);
28 WINE_DECLARE_DEBUG_CHANNEL(vbscript_disas);
29
30 typedef struct {
31 parser_ctx_t parser;
32
33 unsigned instr_cnt;
34 unsigned instr_size;
35 vbscode_t *code;
36
37 unsigned *labels;
38 unsigned labels_size;
39 unsigned labels_cnt;
40
41 unsigned while_end_label;
42 unsigned for_end_label;
43 unsigned sub_end_label;
44 unsigned func_end_label;
45 unsigned prop_end_label;
46
47 dim_decl_t *dim_decls;
48 dynamic_var_t *global_vars;
49
50 const_decl_t *const_decls;
51 const_decl_t *global_consts;
52
53 function_t *func;
54 function_t *funcs;
55 function_decl_t *func_decls;
56
57 class_desc_t *classes;
58 } compile_ctx_t;
59
60 static HRESULT compile_expression(compile_ctx_t*,expression_t*);
61 static HRESULT compile_statement(compile_ctx_t*,statement_t*);
62
63 static const struct {
64 const char *op_str;
65 instr_arg_type_t arg1_type;
66 instr_arg_type_t arg2_type;
67 } instr_info[] = {
68 #define X(n,a,b,c) {#n,b,c},
69 OP_LIST
70 #undef X
71 };
72
73 static void dump_instr_arg(instr_arg_type_t type, instr_arg_t *arg)
74 {
75 switch(type) {
76 case ARG_STR:
77 case ARG_BSTR:
78 TRACE_(vbscript_disas)("\t%s", debugstr_w(arg->str));
79 break;
80 case ARG_INT:
81 TRACE_(vbscript_disas)("\t%d", arg->uint);
82 break;
83 case ARG_UINT:
84 case ARG_ADDR:
85 TRACE_(vbscript_disas)("\t%u", arg->uint);
86 break;
87 case ARG_DOUBLE:
88 TRACE_(vbscript_disas)("\t%lf", *arg->dbl);
89 break;
90 case ARG_NONE:
91 break;
92 default:
93 assert(0);
94 }
95 }
96
97 static void dump_code(compile_ctx_t *ctx)
98 {
99 instr_t *instr;
100
101 for(instr = ctx->code->instrs; instr < ctx->code->instrs+ctx->instr_cnt; instr++) {
102 TRACE_(vbscript_disas)("%d:\t%s", (int)(instr-ctx->code->instrs), instr_info[instr->op].op_str);
103 dump_instr_arg(instr_info[instr->op].arg1_type, &instr->arg1);
104 dump_instr_arg(instr_info[instr->op].arg2_type, &instr->arg2);
105 TRACE_(vbscript_disas)("\n");
106 }
107 }
108
109 static inline void *compiler_alloc(vbscode_t *vbscode, size_t size)
110 {
111 return vbsheap_alloc(&vbscode->heap, size);
112 }
113
114 static inline void *compiler_alloc_zero(vbscode_t *vbscode, size_t size)
115 {
116 void *ret;
117
118 ret = vbsheap_alloc(&vbscode->heap, size);
119 if(ret)
120 memset(ret, 0, size);
121 return ret;
122 }
123
124 static WCHAR *compiler_alloc_string(vbscode_t *vbscode, const WCHAR *str)
125 {
126 size_t size;
127 WCHAR *ret;
128
129 size = (strlenW(str)+1)*sizeof(WCHAR);
130 ret = compiler_alloc(vbscode, size);
131 if(ret)
132 memcpy(ret, str, size);
133 return ret;
134 }
135
136 static inline instr_t *instr_ptr(compile_ctx_t *ctx, unsigned id)
137 {
138 assert(id < ctx->instr_cnt);
139 return ctx->code->instrs + id;
140 }
141
142 static unsigned push_instr(compile_ctx_t *ctx, vbsop_t op)
143 {
144 assert(ctx->instr_size && ctx->instr_size >= ctx->instr_cnt);
145
146 if(ctx->instr_size == ctx->instr_cnt) {
147 instr_t *new_instr;
148
149 new_instr = heap_realloc(ctx->code->instrs, ctx->instr_size*2*sizeof(instr_t));
150 if(!new_instr)
151 return 0;
152
153 ctx->code->instrs = new_instr;
154 ctx->instr_size *= 2;
155 }
156
157 ctx->code->instrs[ctx->instr_cnt].op = op;
158 return ctx->instr_cnt++;
159 }
160
161 static HRESULT push_instr_int(compile_ctx_t *ctx, vbsop_t op, LONG arg)
162 {
163 unsigned ret;
164
165 ret = push_instr(ctx, op);
166 if(!ret)
167 return E_OUTOFMEMORY;
168
169 instr_ptr(ctx, ret)->arg1.lng = arg;
170 return S_OK;
171 }
172
173 static HRESULT push_instr_uint(compile_ctx_t *ctx, vbsop_t op, unsigned arg)
174 {
175 unsigned ret;
176
177 ret = push_instr(ctx, op);
178 if(!ret)
179 return E_OUTOFMEMORY;
180
181 instr_ptr(ctx, ret)->arg1.uint = arg;
182 return S_OK;
183 }
184
185 static HRESULT push_instr_addr(compile_ctx_t *ctx, vbsop_t op, unsigned arg)
186 {
187 unsigned ret;
188
189 ret = push_instr(ctx, op);
190 if(!ret)
191 return E_OUTOFMEMORY;
192
193 instr_ptr(ctx, ret)->arg1.uint = arg;
194 return S_OK;
195 }
196
197 static HRESULT push_instr_str(compile_ctx_t *ctx, vbsop_t op, const WCHAR *arg)
198 {
199 unsigned instr;
200 WCHAR *str;
201
202 str = compiler_alloc_string(ctx->code, arg);
203 if(!str)
204 return E_OUTOFMEMORY;
205
206 instr = push_instr(ctx, op);
207 if(!instr)
208 return E_OUTOFMEMORY;
209
210 instr_ptr(ctx, instr)->arg1.str = str;
211 return S_OK;
212 }
213
214 static HRESULT push_instr_double(compile_ctx_t *ctx, vbsop_t op, double arg)
215 {
216 unsigned instr;
217 double *d;
218
219 d = compiler_alloc(ctx->code, sizeof(double));
220 if(!d)
221 return E_OUTOFMEMORY;
222
223 instr = push_instr(ctx, op);
224 if(!instr)
225 return E_OUTOFMEMORY;
226
227 *d = arg;
228 instr_ptr(ctx, instr)->arg1.dbl = d;
229 return S_OK;
230 }
231
232 static BSTR alloc_bstr_arg(compile_ctx_t *ctx, const WCHAR *str)
233 {
234 if(!ctx->code->bstr_pool_size) {
235 ctx->code->bstr_pool = heap_alloc(8 * sizeof(BSTR));
236 if(!ctx->code->bstr_pool)
237 return NULL;
238 ctx->code->bstr_pool_size = 8;
239 }else if(ctx->code->bstr_pool_size == ctx->code->bstr_cnt) {
240 BSTR *new_pool;
241
242 new_pool = heap_realloc(ctx->code->bstr_pool, ctx->code->bstr_pool_size*2*sizeof(BSTR));
243 if(!new_pool)
244 return NULL;
245
246 ctx->code->bstr_pool = new_pool;
247 ctx->code->bstr_pool_size *= 2;
248 }
249
250 ctx->code->bstr_pool[ctx->code->bstr_cnt] = SysAllocString(str);
251 if(!ctx->code->bstr_pool[ctx->code->bstr_cnt])
252 return NULL;
253
254 return ctx->code->bstr_pool[ctx->code->bstr_cnt++];
255 }
256
257 static HRESULT push_instr_bstr(compile_ctx_t *ctx, vbsop_t op, const WCHAR *arg)
258 {
259 unsigned instr;
260 BSTR bstr;
261
262 bstr = alloc_bstr_arg(ctx, arg);
263 if(!bstr)
264 return E_OUTOFMEMORY;
265
266 instr = push_instr(ctx, op);
267 if(!instr)
268 return E_OUTOFMEMORY;
269
270 instr_ptr(ctx, instr)->arg1.bstr = bstr;
271 return S_OK;
272 }
273
274 static HRESULT push_instr_bstr_uint(compile_ctx_t *ctx, vbsop_t op, const WCHAR *arg1, unsigned arg2)
275 {
276 unsigned instr;
277 BSTR bstr;
278
279 bstr = alloc_bstr_arg(ctx, arg1);
280 if(!bstr)
281 return E_OUTOFMEMORY;
282
283 instr = push_instr(ctx, op);
284 if(!instr)
285 return E_OUTOFMEMORY;
286
287 instr_ptr(ctx, instr)->arg1.bstr = bstr;
288 instr_ptr(ctx, instr)->arg2.uint = arg2;
289 return S_OK;
290 }
291
292 #define LABEL_FLAG 0x80000000
293
294 static unsigned alloc_label(compile_ctx_t *ctx)
295 {
296 if(!ctx->labels_size) {
297 ctx->labels = heap_alloc(8 * sizeof(*ctx->labels));
298 if(!ctx->labels)
299 return 0;
300 ctx->labels_size = 8;
301 }else if(ctx->labels_size == ctx->labels_cnt) {
302 unsigned *new_labels;
303
304 new_labels = heap_realloc(ctx->labels, 2*ctx->labels_size*sizeof(*ctx->labels));
305 if(!new_labels)
306 return 0;
307
308 ctx->labels = new_labels;
309 ctx->labels_size *= 2;
310 }
311
312 return ctx->labels_cnt++ | LABEL_FLAG;
313 }
314
315 static inline void label_set_addr(compile_ctx_t *ctx, unsigned label)
316 {
317 assert(label & LABEL_FLAG);
318 ctx->labels[label & ~LABEL_FLAG] = ctx->instr_cnt;
319 }
320
321 static expression_t *lookup_const_decls(compile_ctx_t *ctx, const WCHAR *name, BOOL lookup_global)
322 {
323 const_decl_t *decl;
324
325 for(decl = ctx->const_decls; decl; decl = decl->next) {
326 if(!strcmpiW(decl->name, name))
327 return decl->value_expr;
328 }
329
330 if(!lookup_global)
331 return NULL;
332
333 for(decl = ctx->global_consts; decl; decl = decl->next) {
334 if(!strcmpiW(decl->name, name))
335 return decl->value_expr;
336 }
337
338 return NULL;
339 }
340
341 static HRESULT compile_args(compile_ctx_t *ctx, expression_t *args, unsigned *ret)
342 {
343 unsigned arg_cnt = 0;
344 HRESULT hres;
345
346 while(args) {
347 hres = compile_expression(ctx, args);
348 if(FAILED(hres))
349 return hres;
350
351 arg_cnt++;
352 args = args->next;
353 }
354
355 *ret = arg_cnt;
356 return S_OK;
357 }
358
359 static HRESULT compile_member_expression(compile_ctx_t *ctx, member_expression_t *expr, BOOL ret_val)
360 {
361 unsigned arg_cnt = 0;
362 HRESULT hres;
363
364 if(ret_val && !expr->args) {
365 expression_t *const_expr;
366
367 const_expr = lookup_const_decls(ctx, expr->identifier, TRUE);
368 if(const_expr)
369 return compile_expression(ctx, const_expr);
370 }
371
372 hres = compile_args(ctx, expr->args, &arg_cnt);
373 if(FAILED(hres))
374 return hres;
375
376 if(expr->obj_expr) {
377 hres = compile_expression(ctx, expr->obj_expr);
378 if(FAILED(hres))
379 return hres;
380
381 hres = push_instr_bstr_uint(ctx, ret_val ? OP_mcall : OP_mcallv, expr->identifier, arg_cnt);
382 }else {
383 hres = push_instr_bstr_uint(ctx, ret_val ? OP_icall : OP_icallv, expr->identifier, arg_cnt);
384 }
385
386 return hres;
387 }
388
389 static HRESULT compile_unary_expression(compile_ctx_t *ctx, unary_expression_t *expr, vbsop_t op)
390 {
391 HRESULT hres;
392
393 hres = compile_expression(ctx, expr->subexpr);
394 if(FAILED(hres))
395 return hres;
396
397 return push_instr(ctx, op) ? S_OK : E_OUTOFMEMORY;
398 }
399
400 static HRESULT compile_binary_expression(compile_ctx_t *ctx, binary_expression_t *expr, vbsop_t op)
401 {
402 HRESULT hres;
403
404 hres = compile_expression(ctx, expr->left);
405 if(FAILED(hres))
406 return hres;
407
408 hres = compile_expression(ctx, expr->right);
409 if(FAILED(hres))
410 return hres;
411
412 return push_instr(ctx, op) ? S_OK : E_OUTOFMEMORY;
413 }
414
415 static HRESULT compile_expression(compile_ctx_t *ctx, expression_t *expr)
416 {
417 switch(expr->type) {
418 case EXPR_ADD:
419 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_add);
420 case EXPR_AND:
421 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_and);
422 case EXPR_BOOL:
423 return push_instr_int(ctx, OP_bool, ((bool_expression_t*)expr)->value);
424 case EXPR_CONCAT:
425 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_concat);
426 case EXPR_DIV:
427 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_div);
428 case EXPR_DOUBLE:
429 return push_instr_double(ctx, OP_double, ((double_expression_t*)expr)->value);
430 case EXPR_EMPTY:
431 return push_instr(ctx, OP_empty) ? S_OK : E_OUTOFMEMORY;
432 case EXPR_EQUAL:
433 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_equal);
434 case EXPR_EQV:
435 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_eqv);
436 case EXPR_EXP:
437 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_exp);
438 case EXPR_GT:
439 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_gt);
440 case EXPR_GTEQ:
441 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_gteq);
442 case EXPR_IDIV:
443 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_idiv);
444 case EXPR_IS:
445 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_is);
446 case EXPR_IMP:
447 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_imp);
448 case EXPR_LT:
449 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_lt);
450 case EXPR_LTEQ:
451 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_lteq);
452 case EXPR_ME:
453 return push_instr(ctx, OP_me) ? S_OK : E_OUTOFMEMORY;
454 case EXPR_MEMBER:
455 return compile_member_expression(ctx, (member_expression_t*)expr, TRUE);
456 case EXPR_MOD:
457 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_mod);
458 case EXPR_MUL:
459 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_mul);
460 case EXPR_NEG:
461 return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_neg);
462 case EXPR_NEQUAL:
463 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_nequal);
464 case EXPR_NEW:
465 return push_instr_str(ctx, OP_new, ((string_expression_t*)expr)->value);
466 case EXPR_NOT:
467 return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_not);
468 case EXPR_NOTHING:
469 return push_instr(ctx, OP_nothing) ? S_OK : E_OUTOFMEMORY;
470 case EXPR_NULL:
471 return push_instr(ctx, OP_null) ? S_OK : E_OUTOFMEMORY;
472 case EXPR_OR:
473 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_or);
474 case EXPR_STRING:
475 return push_instr_str(ctx, OP_string, ((string_expression_t*)expr)->value);
476 case EXPR_SUB:
477 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_sub);
478 case EXPR_USHORT:
479 return push_instr_int(ctx, OP_short, ((int_expression_t*)expr)->value);
480 case EXPR_ULONG:
481 return push_instr_int(ctx, OP_long, ((int_expression_t*)expr)->value);
482 case EXPR_XOR:
483 return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_xor);
484 default:
485 FIXME("Unimplemented expression type %d\n", expr->type);
486 return E_NOTIMPL;
487 }
488
489 return S_OK;
490 }
491
492 static HRESULT compile_if_statement(compile_ctx_t *ctx, if_statement_t *stat)
493 {
494 unsigned cnd_jmp, endif_label = 0;
495 elseif_decl_t *elseif_decl;
496 HRESULT hres;
497
498 hres = compile_expression(ctx, stat->expr);
499 if(FAILED(hres))
500 return hres;
501
502 cnd_jmp = push_instr(ctx, OP_jmp_false);
503 if(!cnd_jmp)
504 return E_OUTOFMEMORY;
505
506 hres = compile_statement(ctx, stat->if_stat);
507 if(FAILED(hres))
508 return hres;
509
510 if(stat->else_stat || stat->elseifs) {
511 endif_label = alloc_label(ctx);
512 if(!endif_label)
513 return E_OUTOFMEMORY;
514
515 hres = push_instr_addr(ctx, OP_jmp, endif_label);
516 if(FAILED(hres))
517 return hres;
518 }
519
520 for(elseif_decl = stat->elseifs; elseif_decl; elseif_decl = elseif_decl->next) {
521 instr_ptr(ctx, cnd_jmp)->arg1.uint = ctx->instr_cnt;
522
523 hres = compile_expression(ctx, elseif_decl->expr);
524 if(FAILED(hres))
525 return hres;
526
527 cnd_jmp = push_instr(ctx, OP_jmp_false);
528 if(!cnd_jmp)
529 return E_OUTOFMEMORY;
530
531 hres = compile_statement(ctx, elseif_decl->stat);
532 if(FAILED(hres))
533 return hres;
534
535 hres = push_instr_addr(ctx, OP_jmp, endif_label);
536 if(FAILED(hres))
537 return hres;
538 }
539
540 instr_ptr(ctx, cnd_jmp)->arg1.uint = ctx->instr_cnt;
541
542 if(stat->else_stat) {
543 hres = compile_statement(ctx, stat->else_stat);
544 if(FAILED(hres))
545 return hres;
546 }
547
548 if(endif_label)
549 label_set_addr(ctx, endif_label);
550 return S_OK;
551 }
552
553 static HRESULT compile_while_statement(compile_ctx_t *ctx, while_statement_t *stat)
554 {
555 unsigned start_addr, prev_label;
556 unsigned jmp_end;
557 HRESULT hres;
558
559 start_addr = ctx->instr_cnt;
560
561 hres = compile_expression(ctx, stat->expr);
562 if(FAILED(hres))
563 return hres;
564
565 jmp_end = push_instr(ctx, stat->stat.type == STAT_UNTIL ? OP_jmp_true : OP_jmp_false);
566 if(!jmp_end)
567 return E_OUTOFMEMORY;
568
569 prev_label = ctx->while_end_label;
570 if(stat->stat.type != STAT_WHILE && !(ctx->while_end_label = alloc_label(ctx)))
571 return E_OUTOFMEMORY;
572
573 hres = compile_statement(ctx, stat->body);
574 if(FAILED(hres))
575 return hres;
576
577 hres = push_instr_addr(ctx, OP_jmp, start_addr);
578 if(FAILED(hres))
579 return hres;
580
581 instr_ptr(ctx, jmp_end)->arg1.uint = ctx->instr_cnt;
582
583 if(stat->stat.type != STAT_WHILE) {
584 label_set_addr(ctx, ctx->while_end_label);
585 ctx->while_end_label = prev_label;
586 }
587
588 return S_OK;
589 }
590
591 static HRESULT compile_dowhile_statement(compile_ctx_t *ctx, while_statement_t *stat)
592 {
593 unsigned start_addr, prev_label;
594 HRESULT hres;
595
596 start_addr = ctx->instr_cnt;
597
598 prev_label = ctx->while_end_label;
599 if(!(ctx->while_end_label = alloc_label(ctx)))
600 return E_OUTOFMEMORY;
601
602 hres = compile_statement(ctx, stat->body);
603 if(FAILED(hres))
604 return hres;
605
606 hres = compile_expression(ctx, stat->expr);
607 if(FAILED(hres))
608 return hres;
609
610 hres = push_instr_addr(ctx, stat->stat.type == STAT_DOUNTIL ? OP_jmp_false : OP_jmp_true, start_addr);
611 if(FAILED(hres))
612 return hres;
613
614 label_set_addr(ctx, ctx->while_end_label);
615 ctx->while_end_label = prev_label;
616 return S_OK;
617 }
618
619 static HRESULT compile_foreach_statement(compile_ctx_t *ctx, foreach_statement_t *stat)
620 {
621 FIXME("for each loop not implemented\n");
622 return E_NOTIMPL;
623 }
624
625 static HRESULT compile_forto_statement(compile_ctx_t *ctx, forto_statement_t *stat)
626 {
627 unsigned step_instr, instr, prev_label;
628 BSTR identifier;
629 HRESULT hres;
630
631 identifier = alloc_bstr_arg(ctx, stat->identifier);
632 if(!identifier)
633 return E_OUTOFMEMORY;
634
635 hres = compile_expression(ctx, stat->from_expr);
636 if(FAILED(hres))
637 return hres;
638
639 instr = push_instr(ctx, OP_assign_ident);
640 if(!instr)
641 return E_OUTOFMEMORY;
642 instr_ptr(ctx, instr)->arg1.bstr = identifier;
643
644 hres = compile_expression(ctx, stat->to_expr);
645 if(FAILED(hres))
646 return hres;
647
648 if(!push_instr(ctx, OP_val))
649 return E_OUTOFMEMORY;
650
651 if(stat->step_expr) {
652 hres = compile_expression(ctx, stat->step_expr);
653 if(FAILED(hres))
654 return hres;
655
656 if(!push_instr(ctx, OP_val))
657 return E_OUTOFMEMORY;
658 }else {
659 hres = push_instr_int(ctx, OP_short, 1);
660 if(FAILED(hres))
661 return hres;
662 }
663
664 prev_label = ctx->for_end_label;
665 ctx->for_end_label = alloc_label(ctx);
666 if(!ctx->for_end_label)
667 return E_OUTOFMEMORY;
668
669 step_instr = push_instr(ctx, OP_step);
670 if(!step_instr)
671 return E_OUTOFMEMORY;
672 instr_ptr(ctx, step_instr)->arg2.bstr = identifier;
673 instr_ptr(ctx, step_instr)->arg1.uint = ctx->for_end_label;
674
675 hres = compile_statement(ctx, stat->body);
676 if(FAILED(hres))
677 return hres;
678
679 instr = push_instr(ctx, OP_incc);
680 if(!instr)
681 return E_OUTOFMEMORY;
682 instr_ptr(ctx, instr)->arg1.bstr = identifier;
683
684 hres = push_instr_addr(ctx, OP_jmp, step_instr);
685 if(FAILED(hres))
686 return hres;
687
688 label_set_addr(ctx, ctx->for_end_label);
689 ctx->for_end_label = prev_label;
690
691 return push_instr_uint(ctx, OP_pop, 2);
692 }
693
694 static HRESULT compile_assign_statement(compile_ctx_t *ctx, assign_statement_t *stat, BOOL is_set)
695 {
696 unsigned args_cnt;
697 vbsop_t op;
698 HRESULT hres;
699
700 hres = compile_expression(ctx, stat->value_expr);
701 if(FAILED(hres))
702 return hres;
703
704 if(stat->member_expr->obj_expr) {
705 hres = compile_expression(ctx, stat->member_expr->obj_expr);
706 if(FAILED(hres))
707 return hres;
708
709 op = is_set ? OP_set_member : OP_assign_member;
710 }else {
711 op = is_set ? OP_set_ident : OP_assign_ident;
712 }
713
714 hres = compile_args(ctx, stat->member_expr->args, &args_cnt);
715 if(FAILED(hres))
716 return hres;
717
718 return push_instr_bstr_uint(ctx, op, stat->member_expr->identifier, args_cnt);
719 }
720
721 static BOOL lookup_dim_decls(compile_ctx_t *ctx, const WCHAR *name)
722 {
723 dim_decl_t *dim_decl;
724
725 for(dim_decl = ctx->dim_decls; dim_decl; dim_decl = dim_decl->next) {
726 if(!strcmpiW(dim_decl->name, name))
727 return TRUE;
728 }
729
730 return FALSE;
731 }
732
733 static BOOL lookup_args_name(compile_ctx_t *ctx, const WCHAR *name)
734 {
735 unsigned i;
736
737 for(i = 0; i < ctx->func->arg_cnt; i++) {
738 if(!strcmpiW(ctx->func->args[i].name, name))
739 return TRUE;
740 }
741
742 return FALSE;
743 }
744
745 static HRESULT compile_dim_statement(compile_ctx_t *ctx, dim_statement_t *stat)
746 {
747 dim_decl_t *dim_decl = stat->dim_decls;
748
749 while(1) {
750 if(lookup_dim_decls(ctx, dim_decl->name) || lookup_args_name(ctx, dim_decl->name)
751 || lookup_const_decls(ctx, dim_decl->name, FALSE)) {
752 FIXME("dim %s name redefined\n", debugstr_w(dim_decl->name));
753 return E_FAIL;
754 }
755
756 ctx->func->var_cnt++;
757 if(!dim_decl->next)
758 break;
759 dim_decl = dim_decl->next;
760 }
761
762 dim_decl->next = ctx->dim_decls;
763 ctx->dim_decls = stat->dim_decls;
764 return S_OK;
765 }
766
767 static HRESULT compile_const_statement(compile_ctx_t *ctx, const_statement_t *stat)
768 {
769 const_decl_t *decl, *next_decl = stat->decls;
770
771 do {
772 decl = next_decl;
773
774 if(lookup_const_decls(ctx, decl->name, FALSE) || lookup_args_name(ctx, decl->name)
775 || lookup_dim_decls(ctx, decl->name)) {
776 FIXME("%s redefined\n", debugstr_w(decl->name));
777 return E_FAIL;
778 }
779
780 if(ctx->func->type == FUNC_GLOBAL) {
781 HRESULT hres;
782
783 hres = compile_expression(ctx, decl->value_expr);
784 if(FAILED(hres))
785 return hres;
786
787 hres = push_instr_bstr(ctx, OP_const, decl->name);
788 if(FAILED(hres))
789 return hres;
790 }
791
792 next_decl = decl->next;
793 decl->next = ctx->const_decls;
794 ctx->const_decls = decl;
795 } while(next_decl);
796
797 return S_OK;
798 }
799
800 static HRESULT compile_function_statement(compile_ctx_t *ctx, function_statement_t *stat)
801 {
802 if(ctx->func != &ctx->code->global_code) {
803 FIXME("Function is not in the global code\n");
804 return E_FAIL;
805 }
806
807 stat->func_decl->next = ctx->func_decls;
808 ctx->func_decls = stat->func_decl;
809 return S_OK;
810 }
811
812 static HRESULT compile_exitdo_statement(compile_ctx_t *ctx)
813 {
814 if(!ctx->while_end_label) {
815 FIXME("Exit Do outside Do Loop\n");
816 return E_FAIL;
817 }
818
819 return push_instr_addr(ctx, OP_jmp, ctx->while_end_label);
820 }
821
822 static HRESULT compile_exitfor_statement(compile_ctx_t *ctx)
823 {
824 if(!ctx->for_end_label) {
825 FIXME("Exit For outside For Loop\n");
826 return E_FAIL;
827 }
828
829 return push_instr_addr(ctx, OP_jmp, ctx->for_end_label);
830 }
831
832 static HRESULT compile_exitsub_statement(compile_ctx_t *ctx)
833 {
834 if(!ctx->sub_end_label) {
835 FIXME("Exit Sub outside Sub?\n");
836 return E_FAIL;
837 }
838
839 return push_instr_addr(ctx, OP_jmp, ctx->sub_end_label);
840 }
841
842 static HRESULT compile_exitfunc_statement(compile_ctx_t *ctx)
843 {
844 if(!ctx->func_end_label) {
845 FIXME("Exit Function outside Function?\n");
846 return E_FAIL;
847 }
848
849 return push_instr_addr(ctx, OP_jmp, ctx->func_end_label);
850 }
851
852 static HRESULT compile_exitprop_statement(compile_ctx_t *ctx)
853 {
854 if(!ctx->prop_end_label) {
855 FIXME("Exit Property outside Property?\n");
856 return E_FAIL;
857 }
858
859 return push_instr_addr(ctx, OP_jmp, ctx->prop_end_label);
860 }
861
862 static HRESULT compile_onerror_statement(compile_ctx_t *ctx, onerror_statement_t *stat)
863 {
864 return push_instr_int(ctx, OP_errmode, stat->resume_next);
865 }
866
867 static HRESULT compile_statement(compile_ctx_t *ctx, statement_t *stat)
868 {
869 HRESULT hres;
870
871 while(stat) {
872 switch(stat->type) {
873 case STAT_ASSIGN:
874 hres = compile_assign_statement(ctx, (assign_statement_t*)stat, FALSE);
875 break;
876 case STAT_CALL:
877 hres = compile_member_expression(ctx, ((call_statement_t*)stat)->expr, FALSE);
878 break;
879 case STAT_CONST:
880 hres = compile_const_statement(ctx, (const_statement_t*)stat);
881 break;
882 case STAT_DIM:
883 hres = compile_dim_statement(ctx, (dim_statement_t*)stat);
884 break;
885 case STAT_DOWHILE:
886 case STAT_DOUNTIL:
887 hres = compile_dowhile_statement(ctx, (while_statement_t*)stat);
888 break;
889 case STAT_EXITDO:
890 hres = compile_exitdo_statement(ctx);
891 break;
892 case STAT_EXITFOR:
893 hres = compile_exitfor_statement(ctx);
894 break;
895 case STAT_EXITFUNC:
896 hres = compile_exitfunc_statement(ctx);
897 break;
898 case STAT_EXITPROP:
899 hres = compile_exitprop_statement(ctx);
900 break;
901 case STAT_EXITSUB:
902 hres = compile_exitsub_statement(ctx);
903 break;
904 case STAT_FOREACH:
905 hres = compile_foreach_statement(ctx, (foreach_statement_t*)stat);
906 break;
907 case STAT_FORTO:
908 hres = compile_forto_statement(ctx, (forto_statement_t*)stat);
909 break;
910 case STAT_FUNC:
911 hres = compile_function_statement(ctx, (function_statement_t*)stat);
912 break;
913 case STAT_IF:
914 hres = compile_if_statement(ctx, (if_statement_t*)stat);
915 break;
916 case STAT_ONERROR:
917 hres = compile_onerror_statement(ctx, (onerror_statement_t*)stat);
918 break;
919 case STAT_SET:
920 hres = compile_assign_statement(ctx, (assign_statement_t*)stat, TRUE);
921 break;
922 case STAT_STOP:
923 hres = push_instr(ctx, OP_stop) ? S_OK : E_OUTOFMEMORY;
924 break;
925 case STAT_UNTIL:
926 case STAT_WHILE:
927 case STAT_WHILELOOP:
928 hres = compile_while_statement(ctx, (while_statement_t*)stat);
929 break;
930 default:
931 FIXME("Unimplemented statement type %d\n", stat->type);
932 hres = E_NOTIMPL;
933 }
934
935 if(FAILED(hres))
936 return hres;
937 stat = stat->next;
938 }
939
940 return S_OK;
941 }
942
943 static void resolve_labels(compile_ctx_t *ctx, unsigned off)
944 {
945 instr_t *instr;
946
947 for(instr = ctx->code->instrs+off; instr < ctx->code->instrs+ctx->instr_cnt; instr++) {
948 if(instr_info[instr->op].arg1_type == ARG_ADDR && (instr->arg1.uint & LABEL_FLAG)) {
949 assert((instr->arg1.uint & ~LABEL_FLAG) < ctx->labels_cnt);
950 instr->arg1.uint = ctx->labels[instr->arg1.uint & ~LABEL_FLAG];
951 }
952 assert(instr_info[instr->op].arg2_type != ARG_ADDR);
953 }
954
955 ctx->labels_cnt = 0;
956 }
957
958 static HRESULT compile_func(compile_ctx_t *ctx, statement_t *stat, function_t *func)
959 {
960 HRESULT hres;
961
962 func->code_off = ctx->instr_cnt;
963
964 ctx->while_end_label = 0;
965 ctx->for_end_label = 0;
966 ctx->sub_end_label = 0;
967 ctx->func_end_label = 0;
968 ctx->prop_end_label = 0;
969
970 switch(func->type) {
971 case FUNC_FUNCTION:
972 ctx->func_end_label = alloc_label(ctx);
973 if(!ctx->func_end_label)
974 return E_OUTOFMEMORY;
975 break;
976 case FUNC_SUB:
977 ctx->sub_end_label = alloc_label(ctx);
978 if(!ctx->sub_end_label)
979 return E_OUTOFMEMORY;
980 break;
981 case FUNC_PROPGET:
982 case FUNC_PROPLET:
983 case FUNC_PROPSET:
984 case FUNC_DEFGET:
985 ctx->prop_end_label = alloc_label(ctx);
986 if(!ctx->prop_end_label)
987 return E_OUTOFMEMORY;
988 break;
989 case FUNC_GLOBAL:
990 break;
991 }
992
993 ctx->func = func;
994 ctx->dim_decls = NULL;
995 ctx->const_decls = NULL;
996 hres = compile_statement(ctx, stat);
997 ctx->func = NULL;
998 if(FAILED(hres))
999 return hres;
1000
1001 assert(!ctx->while_end_label);
1002 assert(!ctx->for_end_label);
1003
1004 if(ctx->sub_end_label)
1005 label_set_addr(ctx, ctx->sub_end_label);
1006 if(ctx->func_end_label)
1007 label_set_addr(ctx, ctx->func_end_label);
1008 if(ctx->prop_end_label)
1009 label_set_addr(ctx, ctx->prop_end_label);
1010
1011 if(!push_instr(ctx, OP_ret))
1012 return E_OUTOFMEMORY;
1013
1014 resolve_labels(ctx, func->code_off);
1015
1016 if(func->var_cnt) {
1017 dim_decl_t *dim_decl;
1018
1019 if(func->type == FUNC_GLOBAL) {
1020 dynamic_var_t *new_var;
1021
1022 func->var_cnt = 0;
1023
1024 for(dim_decl = ctx->dim_decls; dim_decl; dim_decl = dim_decl->next) {
1025 new_var = compiler_alloc(ctx->code, sizeof(*new_var));
1026 if(!new_var)
1027 return E_OUTOFMEMORY;
1028
1029 new_var->name = compiler_alloc_string(ctx->code, dim_decl->name);
1030 if(!new_var->name)
1031 return E_OUTOFMEMORY;
1032
1033 V_VT(&new_var->v) = VT_EMPTY;
1034 new_var->is_const = FALSE;
1035
1036 new_var->next = ctx->global_vars;
1037 ctx->global_vars = new_var;
1038 }
1039 }else {
1040 unsigned i;
1041
1042 func->vars = compiler_alloc(ctx->code, func->var_cnt * sizeof(var_desc_t));
1043 if(!func->vars)
1044 return E_OUTOFMEMORY;
1045
1046 for(dim_decl = ctx->dim_decls, i=0; dim_decl; dim_decl = dim_decl->next, i++) {
1047 func->vars[i].name = compiler_alloc_string(ctx->code, dim_decl->name);
1048 if(!func->vars[i].name)
1049 return E_OUTOFMEMORY;
1050 }
1051
1052 assert(i == func->var_cnt);
1053 }
1054 }
1055
1056 return S_OK;
1057 }
1058
1059 static BOOL lookup_funcs_name(compile_ctx_t *ctx, const WCHAR *name)
1060 {
1061 function_t *iter;
1062
1063 for(iter = ctx->funcs; iter; iter = iter->next) {
1064 if(!strcmpiW(iter->name, name))
1065 return TRUE;
1066 }
1067
1068 return FALSE;
1069 }
1070
1071 static HRESULT create_function(compile_ctx_t *ctx, function_decl_t *decl, function_t **ret)
1072 {
1073 function_t *func;
1074 HRESULT hres;
1075
1076 if(lookup_dim_decls(ctx, decl->name) || lookup_funcs_name(ctx, decl->name) || lookup_const_decls(ctx, decl->name, FALSE)) {
1077 FIXME("%s: redefinition\n", debugstr_w(decl->name));
1078 return E_FAIL;
1079 }
1080
1081 func = compiler_alloc(ctx->code, sizeof(*func));
1082 if(!func)
1083 return E_OUTOFMEMORY;
1084
1085 func->name = compiler_alloc_string(ctx->code, decl->name);
1086 if(!func->name)
1087 return E_OUTOFMEMORY;
1088
1089 func->vars = NULL;
1090 func->var_cnt = 0;
1091 func->code_ctx = ctx->code;
1092 func->type = decl->type;
1093 func->is_public = decl->is_public;
1094
1095 func->arg_cnt = 0;
1096 if(decl->args) {
1097 arg_decl_t *arg;
1098 unsigned i;
1099
1100 for(arg = decl->args; arg; arg = arg->next)
1101 func->arg_cnt++;
1102
1103 func->args = compiler_alloc(ctx->code, func->arg_cnt * sizeof(arg_desc_t));
1104 if(!func->args)
1105 return E_OUTOFMEMORY;
1106
1107 for(i = 0, arg = decl->args; arg; arg = arg->next, i++) {
1108 func->args[i].name = compiler_alloc_string(ctx->code, arg->name);
1109 if(!func->args[i].name)
1110 return E_OUTOFMEMORY;
1111 func->args[i].by_ref = arg->by_ref;
1112 }
1113 }else {
1114 func->args = NULL;
1115 }
1116
1117 hres = compile_func(ctx, decl->body, func);
1118 if(FAILED(hres))
1119 return hres;
1120
1121 *ret = func;
1122 return S_OK;
1123 }
1124
1125 static BOOL lookup_class_name(compile_ctx_t *ctx, const WCHAR *name)
1126 {
1127 class_desc_t *iter;
1128
1129 for(iter = ctx->classes; iter; iter = iter->next) {
1130 if(!strcmpiW(iter->name, name))
1131 return TRUE;
1132 }
1133
1134 return FALSE;
1135 }
1136
1137 static HRESULT create_class_funcprop(compile_ctx_t *ctx, function_decl_t *func_decl, vbdisp_funcprop_desc_t *desc)
1138 {
1139 vbdisp_invoke_type_t invoke_type;
1140 function_decl_t *funcprop_decl;
1141 HRESULT hres;
1142
1143 desc->name = compiler_alloc_string(ctx->code, func_decl->name);
1144 if(!desc->name)
1145 return E_OUTOFMEMORY;
1146
1147 for(funcprop_decl = func_decl; funcprop_decl; funcprop_decl = funcprop_decl->next_prop_func) {
1148 switch(funcprop_decl->type) {
1149 case FUNC_FUNCTION:
1150 case FUNC_SUB:
1151 case FUNC_PROPGET:
1152 case FUNC_DEFGET:
1153 invoke_type = VBDISP_CALLGET;
1154 break;
1155 case FUNC_PROPLET:
1156 invoke_type = VBDISP_LET;
1157 break;
1158 case FUNC_PROPSET:
1159 invoke_type = VBDISP_SET;
1160 break;
1161 default:
1162 assert(0);
1163 }
1164
1165 assert(!desc->entries[invoke_type]);
1166
1167 if(funcprop_decl->is_public)
1168 desc->is_public = TRUE;
1169
1170 hres = create_function(ctx, funcprop_decl, desc->entries+invoke_type);
1171 if(FAILED(hres))
1172 return hres;
1173 }
1174
1175 return S_OK;
1176 }
1177
1178 static BOOL lookup_class_funcs(class_desc_t *class_desc, const WCHAR *name)
1179 {
1180 unsigned i;
1181
1182 for(i=0; i < class_desc->func_cnt; i++) {
1183 if(class_desc->funcs[i].name && !strcmpiW(class_desc->funcs[i].name, name))
1184 return TRUE;
1185 }
1186
1187 return FALSE;
1188 }
1189
1190 static HRESULT compile_class(compile_ctx_t *ctx, class_decl_t *class_decl)
1191 {
1192 function_decl_t *func_decl, *func_prop_decl;
1193 class_prop_decl_t *prop_decl;
1194 class_desc_t *class_desc;
1195 unsigned i;
1196 HRESULT hres;
1197
1198 static const WCHAR class_initializeW[] = {'c','l','a','s','s','_','i','n','i','t','i','a','l','i','z','e',0};
1199 static const WCHAR class_terminateW[] = {'c','l','a','s','s','_','t','e','r','m','i','n','a','t','e',0};
1200
1201 if(lookup_dim_decls(ctx, class_decl->name) || lookup_funcs_name(ctx, class_decl->name)
1202 || lookup_const_decls(ctx, class_decl->name, FALSE) || lookup_class_name(ctx, class_decl->name)) {
1203 FIXME("%s: redefinition\n", debugstr_w(class_decl->name));
1204 return E_FAIL;
1205 }
1206
1207 class_desc = compiler_alloc_zero(ctx->code, sizeof(*class_desc));
1208 if(!class_desc)
1209 return E_OUTOFMEMORY;
1210
1211 class_desc->name = compiler_alloc_string(ctx->code, class_decl->name);
1212 if(!class_desc->name)
1213 return E_OUTOFMEMORY;
1214
1215 class_desc->func_cnt = 1; /* always allocate slot for default getter */
1216
1217 for(func_decl = class_decl->funcs; func_decl; func_decl = func_decl->next) {
1218 for(func_prop_decl = func_decl; func_prop_decl; func_prop_decl = func_prop_decl->next_prop_func) {
1219 if(func_prop_decl->type == FUNC_DEFGET)
1220 break;
1221 }
1222 if(!func_prop_decl)
1223 class_desc->func_cnt++;
1224 }
1225
1226 class_desc->funcs = compiler_alloc(ctx->code, class_desc->func_cnt*sizeof(*class_desc->funcs));
1227 if(!class_desc->funcs)
1228 return E_OUTOFMEMORY;
1229 memset(class_desc->funcs, 0, class_desc->func_cnt*sizeof(*class_desc->funcs));
1230
1231 for(func_decl = class_decl->funcs, i=1; func_decl; func_decl = func_decl->next, i++) {
1232 for(func_prop_decl = func_decl; func_prop_decl; func_prop_decl = func_prop_decl->next_prop_func) {
1233 if(func_prop_decl->type == FUNC_DEFGET) {
1234 i--;
1235 break;
1236 }
1237 }
1238
1239 if(!strcmpiW(class_initializeW, func_decl->name)) {
1240 if(func_decl->type != FUNC_SUB) {
1241 FIXME("class initializer is not sub\n");
1242 return E_FAIL;
1243 }
1244
1245 class_desc->class_initialize_id = i;
1246 }else if(!strcmpiW(class_terminateW, func_decl->name)) {
1247 if(func_decl->type != FUNC_SUB) {
1248 FIXME("class terminator is not sub\n");
1249 return E_FAIL;
1250 }
1251
1252 class_desc->class_terminate_id = i;
1253 }
1254
1255 hres = create_class_funcprop(ctx, func_decl, class_desc->funcs + (func_prop_decl ? 0 : i));
1256 if(FAILED(hres))
1257 return hres;
1258 }
1259
1260 for(prop_decl = class_decl->props; prop_decl; prop_decl = prop_decl->next)
1261 class_desc->prop_cnt++;
1262
1263 class_desc->props = compiler_alloc(ctx->code, class_desc->prop_cnt*sizeof(*class_desc->props));
1264 if(!class_desc->props)
1265 return E_OUTOFMEMORY;
1266
1267 for(prop_decl = class_decl->props, i=0; prop_decl; prop_decl = prop_decl->next, i++) {
1268 if(lookup_class_funcs(class_desc, prop_decl->name)) {
1269 FIXME("Property %s redefined\n", debugstr_w(prop_decl->name));
1270 return E_FAIL;
1271 }
1272
1273 class_desc->props[i].name = compiler_alloc_string(ctx->code, prop_decl->name);
1274 if(!class_desc->props[i].name)
1275 return E_OUTOFMEMORY;
1276
1277 class_desc->props[i].is_public = prop_decl->is_public;
1278 }
1279
1280 class_desc->next = ctx->classes;
1281 ctx->classes = class_desc;
1282 return S_OK;
1283 }
1284
1285 static BOOL lookup_script_identifier(script_ctx_t *script, const WCHAR *identifier)
1286 {
1287 class_desc_t *class;
1288 dynamic_var_t *var;
1289 function_t *func;
1290
1291 for(var = script->global_vars; var; var = var->next) {
1292 if(!strcmpiW(var->name, identifier))
1293 return TRUE;
1294 }
1295
1296 for(func = script->global_funcs; func; func = func->next) {
1297 if(!strcmpiW(func->name, identifier))
1298 return TRUE;
1299 }
1300
1301 for(class = script->classes; class; class = class->next) {
1302 if(!strcmpiW(class->name, identifier))
1303 return TRUE;
1304 }
1305
1306 return FALSE;
1307 }
1308
1309 static HRESULT check_script_collisions(compile_ctx_t *ctx, script_ctx_t *script)
1310 {
1311 class_desc_t *class;
1312 dynamic_var_t *var;
1313 function_t *func;
1314
1315 for(var = ctx->global_vars; var; var = var->next) {
1316 if(lookup_script_identifier(script, var->name)) {
1317 FIXME("%s: redefined\n", debugstr_w(var->name));
1318 return E_FAIL;
1319 }
1320 }
1321
1322 for(func = ctx->funcs; func; func = func->next) {
1323 if(lookup_script_identifier(script, func->name)) {
1324 FIXME("%s: redefined\n", debugstr_w(func->name));
1325 return E_FAIL;
1326 }
1327 }
1328
1329 for(class = ctx->classes; class; class = class->next) {
1330 if(lookup_script_identifier(script, class->name)) {
1331 FIXME("%s: redefined\n", debugstr_w(class->name));
1332 return E_FAIL;
1333 }
1334 }
1335
1336 return S_OK;
1337 }
1338
1339 void release_vbscode(vbscode_t *code)
1340 {
1341 unsigned i;
1342
1343 list_remove(&code->entry);
1344
1345 for(i=0; i < code->bstr_cnt; i++)
1346 SysFreeString(code->bstr_pool[i]);
1347
1348 vbsheap_free(&code->heap);
1349
1350 heap_free(code->bstr_pool);
1351 heap_free(code->source);
1352 heap_free(code->instrs);
1353 heap_free(code);
1354 }
1355
1356 static vbscode_t *alloc_vbscode(compile_ctx_t *ctx, const WCHAR *source)
1357 {
1358 vbscode_t *ret;
1359
1360 ret = heap_alloc(sizeof(*ret));
1361 if(!ret)
1362 return NULL;
1363
1364 ret->source = heap_strdupW(source);
1365 if(!ret->source) {
1366 heap_free(ret);
1367 return NULL;
1368 }
1369
1370 ret->instrs = heap_alloc(32*sizeof(instr_t));
1371 if(!ret->instrs) {
1372 release_vbscode(ret);
1373 return NULL;
1374 }
1375
1376 ctx->instr_cnt = 1;
1377 ctx->instr_size = 32;
1378 vbsheap_init(&ret->heap);
1379
1380 ret->option_explicit = ctx->parser.option_explicit;
1381
1382 ret->bstr_pool = NULL;
1383 ret->bstr_pool_size = 0;
1384 ret->bstr_cnt = 0;
1385 ret->global_executed = FALSE;
1386
1387 ret->global_code.type = FUNC_GLOBAL;
1388 ret->global_code.name = NULL;
1389 ret->global_code.code_ctx = ret;
1390 ret->global_code.vars = NULL;
1391 ret->global_code.var_cnt = 0;
1392 ret->global_code.arg_cnt = 0;
1393 ret->global_code.args = NULL;
1394
1395 list_init(&ret->entry);
1396 return ret;
1397 }
1398
1399 static void release_compiler(compile_ctx_t *ctx)
1400 {
1401 parser_release(&ctx->parser);
1402 heap_free(ctx->labels);
1403 if(ctx->code)
1404 release_vbscode(ctx->code);
1405 }
1406
1407 HRESULT compile_script(script_ctx_t *script, const WCHAR *src, vbscode_t **ret)
1408 {
1409 function_t *new_func;
1410 function_decl_t *func_decl;
1411 class_decl_t *class_decl;
1412 compile_ctx_t ctx;
1413 vbscode_t *code;
1414 HRESULT hres;
1415
1416 hres = parse_script(&ctx.parser, src);
1417 if(FAILED(hres))
1418 return hres;
1419
1420 code = ctx.code = alloc_vbscode(&ctx, src);
1421 if(!ctx.code)
1422 return E_OUTOFMEMORY;
1423
1424 ctx.funcs = NULL;
1425 ctx.func_decls = NULL;
1426 ctx.global_vars = NULL;
1427 ctx.dim_decls = NULL;
1428 ctx.classes = NULL;
1429 ctx.labels = NULL;
1430 ctx.global_consts = NULL;
1431 ctx.labels_cnt = ctx.labels_size = 0;
1432
1433 hres = compile_func(&ctx, ctx.parser.stats, &ctx.code->global_code);
1434 if(FAILED(hres)) {
1435 release_compiler(&ctx);
1436 return hres;
1437 }
1438
1439 ctx.global_consts = ctx.const_decls;
1440
1441 for(func_decl = ctx.func_decls; func_decl; func_decl = func_decl->next) {
1442 hres = create_function(&ctx, func_decl, &new_func);
1443 if(FAILED(hres)) {
1444 release_compiler(&ctx);
1445 return hres;
1446 }
1447
1448 new_func->next = ctx.funcs;
1449 ctx.funcs = new_func;
1450 }
1451
1452 for(class_decl = ctx.parser.class_decls; class_decl; class_decl = class_decl->next) {
1453 hres = compile_class(&ctx, class_decl);
1454 if(FAILED(hres)) {
1455 release_compiler(&ctx);
1456 return hres;
1457 }
1458 }
1459
1460 hres = check_script_collisions(&ctx, script);
1461 if(FAILED(hres)) {
1462 release_compiler(&ctx);
1463 return hres;
1464 }
1465
1466 if(ctx.global_vars) {
1467 dynamic_var_t *var;
1468
1469 for(var = ctx.global_vars; var->next; var = var->next);
1470
1471 var->next = script->global_vars;
1472 script->global_vars = ctx.global_vars;
1473 }
1474
1475 if(ctx.funcs) {
1476 for(new_func = ctx.funcs; new_func->next; new_func = new_func->next);
1477
1478 new_func->next = script->global_funcs;
1479 script->global_funcs = ctx.funcs;
1480 }
1481
1482 if(ctx.classes) {
1483 class_desc_t *class = ctx.classes;
1484
1485 while(1) {
1486 class->ctx = script;
1487 if(!class->next)
1488 break;
1489 class = class->next;
1490 }
1491
1492 class->next = script->classes;
1493 script->classes = ctx.classes;
1494 }
1495
1496 if(TRACE_ON(vbscript_disas))
1497 dump_code(&ctx);
1498
1499 ctx.code = NULL;
1500 release_compiler(&ctx);
1501
1502 list_add_tail(&script->code_list, &code->entry);
1503 *ret = code;
1504 return S_OK;
1505 }
Maarten's multimedia branch