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jscript: Fixed memory leaks.
[wine/multimedia.git] / dlls / jscript / engine.c
blob6a76f8efe5bc6c62557151c7e4ba21e88b2bb6a6
1 /*
2 * Copyright 2008 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 "config.h"
20 #include "wine/port.h"
21
22 #include <math.h>
23 #include <assert.h>
24
25 #include "jscript.h"
26 #include "engine.h"
27
28 #include "wine/debug.h"
29
30 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
31
32 #define EXPR_NOVAL 0x0001
33 #define EXPR_NEWREF 0x0002
34
35 struct _return_type_t {
36 enum{
37 RT_NORMAL,
38 RT_RETURN,
39 RT_BREAK,
40 RT_CONTINUE
41 } type;
42 jsexcept_t ei;
43 };
44
45 static inline HRESULT stat_eval(script_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
46 {
47 return stat->eval(ctx, stat, rt, ret);
48 }
49
50 static inline HRESULT expr_eval(script_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
51 {
52 return expr->eval(ctx, expr, flags, ei, ret);
53 }
54
55 static HRESULT stack_push(exec_ctx_t *ctx, VARIANT *v)
56 {
57 if(!ctx->stack_size) {
58 ctx->stack = heap_alloc(16*sizeof(VARIANT));
59 if(!ctx->stack)
60 return E_OUTOFMEMORY;
61 ctx->stack_size = 16;
62 }else if(ctx->stack_size == ctx->top) {
63 VARIANT *new_stack;
64
65 new_stack = heap_realloc(ctx->stack, ctx->stack_size*2*sizeof(VARIANT));
66 if(!new_stack) {
67 VariantClear(v);
68 return E_OUTOFMEMORY;
69 }
70
71 ctx->stack = new_stack;
72 ctx->stack_size *= 2;
73 }
74
75 ctx->stack[ctx->top++] = *v;
76 return S_OK;
77 }
78
79 static HRESULT stack_push_bool(exec_ctx_t *ctx, BOOL b)
80 {
81 VARIANT v;
82
83 V_VT(&v) = VT_BOOL;
84 V_BOOL(&v) = b ? VARIANT_TRUE : VARIANT_FALSE;
85 return stack_push(ctx, &v);
86 }
87
88 static inline HRESULT stack_push_number(exec_ctx_t *ctx, double number)
89 {
90 VARIANT v;
91
92 num_set_val(&v, number);
93 return stack_push(ctx, &v);
94 }
95
96 static inline HRESULT stack_push_int(exec_ctx_t *ctx, INT n)
97 {
98 VARIANT v;
99
100 V_VT(&v) = VT_I4;
101 V_I4(&v) = n;
102 return stack_push(ctx, &v);
103 }
104
105 static HRESULT stack_push_objid(exec_ctx_t *ctx, IDispatch *disp, DISPID id)
106 {
107 VARIANT v;
108 HRESULT hres;
109
110 V_VT(&v) = VT_DISPATCH;
111 V_DISPATCH(&v) = disp;
112 hres = stack_push(ctx, &v);
113 if(FAILED(hres))
114 return hres;
115
116 V_VT(&v) = VT_INT;
117 V_INT(&v) = id;
118 return stack_push(ctx, &v);
119 }
120
121 static inline VARIANT *stack_top(exec_ctx_t *ctx)
122 {
123 assert(ctx->top);
124 return ctx->stack + ctx->top-1;
125 }
126
127 static inline VARIANT *stack_topn(exec_ctx_t *ctx, unsigned n)
128 {
129 assert(ctx->top > n);
130 return ctx->stack + ctx->top-1-n;
131 }
132
133 static inline VARIANT *stack_pop(exec_ctx_t *ctx)
134 {
135 assert(ctx->top);
136 return ctx->stack + --ctx->top;
137 }
138
139 static void stack_popn(exec_ctx_t *ctx, unsigned n)
140 {
141 while(n--)
142 VariantClear(stack_pop(ctx));
143 }
144
145 static HRESULT stack_pop_number(exec_ctx_t *ctx, VARIANT *r)
146 {
147 VARIANT *v;
148 HRESULT hres;
149
150 v = stack_pop(ctx);
151 hres = to_number(ctx->parser->script, v, &ctx->ei, r);
152 VariantClear(v);
153 return hres;
154 }
155
156 static HRESULT stack_pop_object(exec_ctx_t *ctx, IDispatch **r)
157 {
158 VARIANT *v;
159 HRESULT hres;
160
161 v = stack_pop(ctx);
162 if(V_VT(v) == VT_DISPATCH) {
163 *r = V_DISPATCH(v);
164 return S_OK;
165 }
166
167 hres = to_object(ctx->parser->script, v, r);
168 VariantClear(v);
169 return hres;
170 }
171
172 static inline HRESULT stack_pop_int(exec_ctx_t *ctx, INT *r)
173 {
174 return to_int32(ctx->parser->script, stack_pop(ctx), &ctx->ei, r);
175 }
176
177 static inline HRESULT stack_pop_uint(exec_ctx_t *ctx, DWORD *r)
178 {
179 return to_uint32(ctx->parser->script, stack_pop(ctx), &ctx->ei, r);
180 }
181
182 static inline IDispatch *stack_pop_objid(exec_ctx_t *ctx, DISPID *id)
183 {
184 assert(V_VT(stack_top(ctx)) == VT_INT && V_VT(stack_topn(ctx, 1)) == VT_DISPATCH);
185
186 *id = V_INT(stack_pop(ctx));
187 return V_DISPATCH(stack_pop(ctx));
188 }
189
190 static inline IDispatch *stack_topn_objid(exec_ctx_t *ctx, unsigned n, DISPID *id)
191 {
192 assert(V_VT(stack_topn(ctx, n)) == VT_INT && V_VT(stack_topn(ctx, n+1)) == VT_DISPATCH);
193
194 *id = V_INT(stack_topn(ctx, n));
195 return V_DISPATCH(stack_topn(ctx, n+1));
196 }
197
198 static void exprval_release(exprval_t *val)
199 {
200 switch(val->type) {
201 case EXPRVAL_VARIANT:
202 if(V_VT(&val->u.var) != VT_EMPTY)
203 VariantClear(&val->u.var);
204 return;
205 case EXPRVAL_IDREF:
206 if(val->u.idref.disp)
207 IDispatch_Release(val->u.idref.disp);
208 return;
209 case EXPRVAL_INVALID:
210 SysFreeString(val->u.identifier);
211 }
212 }
213
214 /* ECMA-262 3rd Edition 8.7.1 */
215 static HRESULT exprval_value(script_ctx_t *ctx, exprval_t *val, jsexcept_t *ei, VARIANT *ret)
216 {
217 V_VT(ret) = VT_EMPTY;
218
219 switch(val->type) {
220 case EXPRVAL_VARIANT:
221 return VariantCopy(ret, &val->u.var);
222 case EXPRVAL_IDREF:
223 if(!val->u.idref.disp) {
224 FIXME("throw ReferenceError\n");
225 return E_FAIL;
226 }
227
228 return disp_propget(ctx, val->u.idref.disp, val->u.idref.id, ret, ei, NULL/*FIXME*/);
229 case EXPRVAL_INVALID:
230 return throw_type_error(ctx, ei, JS_E_UNDEFINED_VARIABLE, val->u.identifier);
231 }
232
233 ERR("type %d\n", val->type);
234 return E_FAIL;
235 }
236
237 static HRESULT exprval_to_value(script_ctx_t *ctx, exprval_t *val, jsexcept_t *ei, VARIANT *ret)
238 {
239 if(val->type == EXPRVAL_VARIANT) {
240 *ret = val->u.var;
241 V_VT(&val->u.var) = VT_EMPTY;
242 return S_OK;
243 }
244
245 return exprval_value(ctx, val, ei, ret);
246 }
247
248 static HRESULT exprval_to_boolean(script_ctx_t *ctx, exprval_t *exprval, jsexcept_t *ei, VARIANT_BOOL *b)
249 {
250 if(exprval->type != EXPRVAL_VARIANT) {
251 VARIANT val;
252 HRESULT hres;
253
254 hres = exprval_to_value(ctx, exprval, ei, &val);
255 if(FAILED(hres))
256 return hres;
257
258 hres = to_boolean(&val, b);
259 VariantClear(&val);
260 return hres;
261 }
262
263 return to_boolean(&exprval->u.var, b);
264 }
265
266 static void exprval_init(exprval_t *val)
267 {
268 val->type = EXPRVAL_VARIANT;
269 V_VT(&val->u.var) = VT_EMPTY;
270 }
271
272 static void exprval_set_idref(exprval_t *val, IDispatch *disp, DISPID id)
273 {
274 val->type = EXPRVAL_IDREF;
275 val->u.idref.disp = disp;
276 val->u.idref.id = id;
277
278 if(disp)
279 IDispatch_AddRef(disp);
280 }
281
282 HRESULT scope_push(scope_chain_t *scope, jsdisp_t *obj, scope_chain_t **ret)
283 {
284 scope_chain_t *new_scope;
285
286 new_scope = heap_alloc(sizeof(scope_chain_t));
287 if(!new_scope)
288 return E_OUTOFMEMORY;
289
290 new_scope->ref = 1;
291
292 jsdisp_addref(obj);
293 new_scope->obj = obj;
294
295 if(scope) {
296 scope_addref(scope);
297 new_scope->next = scope;
298 }else {
299 new_scope->next = NULL;
300 }
301
302 *ret = new_scope;
303 return S_OK;
304 }
305
306 static void scope_pop(scope_chain_t **scope)
307 {
308 scope_chain_t *tmp;
309
310 tmp = *scope;
311 *scope = tmp->next;
312 scope_release(tmp);
313 }
314
315 void scope_release(scope_chain_t *scope)
316 {
317 if(--scope->ref)
318 return;
319
320 if(scope->next)
321 scope_release(scope->next);
322
323 jsdisp_release(scope->obj);
324 heap_free(scope);
325 }
326
327 HRESULT create_exec_ctx(script_ctx_t *script_ctx, IDispatch *this_obj, jsdisp_t *var_disp,
328 scope_chain_t *scope, BOOL is_global, exec_ctx_t **ret)
329 {
330 exec_ctx_t *ctx;
331
332 ctx = heap_alloc_zero(sizeof(exec_ctx_t));
333 if(!ctx)
334 return E_OUTOFMEMORY;
335
336 ctx->ref = 1;
337 ctx->is_global = is_global;
338
339 if(this_obj)
340 ctx->this_obj = this_obj;
341 else if(script_ctx->host_global)
342 ctx->this_obj = script_ctx->host_global;
343 else
344 ctx->this_obj = to_disp(script_ctx->global);
345 IDispatch_AddRef(ctx->this_obj);
346
347 jsdisp_addref(var_disp);
348 ctx->var_disp = var_disp;
349
350 if(scope) {
351 scope_addref(scope);
352 ctx->scope_chain = scope;
353 }
354
355 *ret = ctx;
356 return S_OK;
357 }
358
359 void exec_release(exec_ctx_t *ctx)
360 {
361 if(--ctx->ref)
362 return;
363
364 if(ctx->scope_chain)
365 scope_release(ctx->scope_chain);
366 if(ctx->var_disp)
367 jsdisp_release(ctx->var_disp);
368 if(ctx->this_obj)
369 IDispatch_Release(ctx->this_obj);
370 heap_free(ctx->stack);
371 heap_free(ctx);
372 }
373
374 static HRESULT disp_get_id(script_ctx_t *ctx, IDispatch *disp, BSTR name, DWORD flags, DISPID *id)
375 {
376 IDispatchEx *dispex;
377 HRESULT hres;
378
379 hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
380 if(FAILED(hres)) {
381 TRACE("unsing IDispatch\n");
382
383 *id = 0;
384 return IDispatch_GetIDsOfNames(disp, &IID_NULL, &name, 1, 0, id);
385 }
386
387 *id = 0;
388 hres = IDispatchEx_GetDispID(dispex, name, make_grfdex(ctx, flags|fdexNameCaseSensitive), id);
389 IDispatchEx_Release(dispex);
390 return hres;
391 }
392
393 /* ECMA-262 3rd Edition 8.7.2 */
394 static HRESULT put_value(script_ctx_t *ctx, exprval_t *ref, VARIANT *v, jsexcept_t *ei)
395 {
396 if(ref->type != EXPRVAL_IDREF)
397 return throw_reference_error(ctx, ei, JS_E_ILLEGAL_ASSIGN, NULL);
398
399 return disp_propput(ctx, ref->u.idref.disp, ref->u.idref.id, v, ei, NULL/*FIXME*/);
400 }
401
402 static inline BOOL is_null(const VARIANT *v)
403 {
404 return V_VT(v) == VT_NULL || (V_VT(v) == VT_DISPATCH && !V_DISPATCH(v));
405 }
406
407 static HRESULT disp_cmp(IDispatch *disp1, IDispatch *disp2, BOOL *ret)
408 {
409 IObjectIdentity *identity;
410 IUnknown *unk1, *unk2;
411 HRESULT hres;
412
413 if(disp1 == disp2) {
414 *ret = TRUE;
415 return S_OK;
416 }
417
418 if(!disp1 || !disp2) {
419 *ret = FALSE;
420 return S_OK;
421 }
422
423 hres = IDispatch_QueryInterface(disp1, &IID_IUnknown, (void**)&unk1);
424 if(FAILED(hres))
425 return hres;
426
427 hres = IDispatch_QueryInterface(disp2, &IID_IUnknown, (void**)&unk2);
428 if(FAILED(hres)) {
429 IUnknown_Release(unk1);
430 return hres;
431 }
432
433 if(unk1 == unk2) {
434 *ret = TRUE;
435 }else {
436 hres = IUnknown_QueryInterface(unk1, &IID_IObjectIdentity, (void**)&identity);
437 if(SUCCEEDED(hres)) {
438 hres = IObjectIdentity_IsEqualObject(identity, unk2);
439 IObjectIdentity_Release(identity);
440 *ret = hres == S_OK;
441 }else {
442 *ret = FALSE;
443 }
444 }
445
446 IUnknown_Release(unk1);
447 IUnknown_Release(unk2);
448 return S_OK;
449 }
450
451 /* ECMA-262 3rd Edition 11.9.6 */
452 static HRESULT equal2_values(VARIANT *lval, VARIANT *rval, BOOL *ret)
453 {
454 TRACE("\n");
455
456 if(V_VT(lval) != V_VT(rval)) {
457 if(is_num_vt(V_VT(lval)) && is_num_vt(V_VT(rval)))
458 *ret = num_val(lval) == num_val(rval);
459 else if(is_null(lval))
460 *ret = is_null(rval);
461 else
462 *ret = FALSE;
463 return S_OK;
464 }
465
466 switch(V_VT(lval)) {
467 case VT_EMPTY:
468 case VT_NULL:
469 *ret = VARIANT_TRUE;
470 break;
471 case VT_I4:
472 *ret = V_I4(lval) == V_I4(rval);
473 break;
474 case VT_R8:
475 *ret = V_R8(lval) == V_R8(rval);
476 break;
477 case VT_BSTR:
478 if(!V_BSTR(lval))
479 *ret = SysStringLen(V_BSTR(rval))?FALSE:TRUE;
480 else if(!V_BSTR(rval))
481 *ret = SysStringLen(V_BSTR(lval))?FALSE:TRUE;
482 else
483 *ret = !strcmpW(V_BSTR(lval), V_BSTR(rval));
484 break;
485 case VT_DISPATCH:
486 return disp_cmp(V_DISPATCH(lval), V_DISPATCH(rval), ret);
487 case VT_BOOL:
488 *ret = !V_BOOL(lval) == !V_BOOL(rval);
489 break;
490 default:
491 FIXME("unimplemented vt %d\n", V_VT(lval));
492 return E_NOTIMPL;
493 }
494
495 return S_OK;
496 }
497
498 static HRESULT literal_to_var(script_ctx_t *ctx, literal_t *literal, VARIANT *v)
499 {
500 switch(literal->type) {
501 case LT_NULL:
502 V_VT(v) = VT_NULL;
503 break;
504 case LT_INT:
505 V_VT(v) = VT_I4;
506 V_I4(v) = literal->u.lval;
507 break;
508 case LT_DOUBLE:
509 V_VT(v) = VT_R8;
510 V_R8(v) = literal->u.dval;
511 break;
512 case LT_STRING: {
513 BSTR str = SysAllocString(literal->u.wstr);
514 if(!str)
515 return E_OUTOFMEMORY;
516
517 V_VT(v) = VT_BSTR;
518 V_BSTR(v) = str;
519 break;
520 }
521 case LT_BOOL:
522 V_VT(v) = VT_BOOL;
523 V_BOOL(v) = literal->u.bval;
524 break;
525 case LT_REGEXP: {
526 jsdisp_t *regexp;
527 HRESULT hres;
528
529 hres = create_regexp(ctx, literal->u.regexp.str, literal->u.regexp.str_len,
530 literal->u.regexp.flags, &regexp);
531 if(FAILED(hres))
532 return hres;
533
534 var_set_jsdisp(v, regexp);
535 }
536 }
537
538 return S_OK;
539 }
540
541 static BOOL lookup_global_members(script_ctx_t *ctx, BSTR identifier, exprval_t *ret)
542 {
543 named_item_t *item;
544 DISPID id;
545 HRESULT hres;
546
547 for(item = ctx->named_items; item; item = item->next) {
548 if(item->flags & SCRIPTITEM_GLOBALMEMBERS) {
549 hres = disp_get_id(ctx, item->disp, identifier, 0, &id);
550 if(SUCCEEDED(hres)) {
551 if(ret)
552 exprval_set_idref(ret, item->disp, id);
553 return TRUE;
554 }
555 }
556 }
557
558 return FALSE;
559 }
560
561 HRESULT exec_source(exec_ctx_t *ctx, parser_ctx_t *parser, source_elements_t *source, BOOL from_eval,
562 jsexcept_t *ei, VARIANT *retv)
563 {
564 script_ctx_t *script = parser->script;
565 function_declaration_t *func;
566 parser_ctx_t *prev_parser;
567 var_list_t *var;
568 VARIANT val, tmp;
569 statement_t *stat;
570 exec_ctx_t *prev_ctx;
571 return_type_t rt;
572 HRESULT hres = S_OK;
573
574 for(func = source->functions; func; func = func->next) {
575 jsdisp_t *func_obj;
576 VARIANT var;
577
578 hres = create_source_function(parser, func->expr->parameter_list, func->expr->source_elements,
579 ctx->scope_chain, func->expr->src_str, func->expr->src_len, &func_obj);
580 if(FAILED(hres))
581 return hres;
582
583 var_set_jsdisp(&var, func_obj);
584 hres = jsdisp_propput_name(ctx->var_disp, func->expr->identifier, &var, ei, NULL);
585 jsdisp_release(func_obj);
586 if(FAILED(hres))
587 return hres;
588 }
589
590 for(var = source->variables; var; var = var->next) {
591 DISPID id = 0;
592 BSTR name;
593
594 name = SysAllocString(var->identifier);
595 if(!name)
596 return E_OUTOFMEMORY;
597
598 if(!ctx->is_global || !lookup_global_members(parser->script, name, NULL))
599 hres = jsdisp_get_id(ctx->var_disp, var->identifier, fdexNameEnsure, &id);
600 SysFreeString(name);
601 if(FAILED(hres))
602 return hres;
603 }
604
605 prev_ctx = script->exec_ctx;
606 script->exec_ctx = ctx;
607
608 prev_parser = ctx->parser;
609 ctx->parser = parser;
610
611 V_VT(&val) = VT_EMPTY;
612 memset(&rt, 0, sizeof(rt));
613 rt.type = RT_NORMAL;
614
615 for(stat = source->statement; stat; stat = stat->next) {
616 hres = stat_eval(script, stat, &rt, &tmp);
617 if(FAILED(hres))
618 break;
619
620 VariantClear(&val);
621 val = tmp;
622 if(rt.type != RT_NORMAL)
623 break;
624 }
625
626 script->exec_ctx = prev_ctx;
627 ctx->parser = prev_parser;
628
629 if(rt.type != RT_NORMAL && rt.type != RT_RETURN) {
630 FIXME("wrong rt %d\n", rt.type);
631 hres = E_FAIL;
632 }
633
634 *ei = rt.ei;
635 if(FAILED(hres)) {
636 VariantClear(&val);
637 return hres;
638 }
639
640 if(!retv || (!from_eval && rt.type != RT_RETURN))
641 VariantClear(&val);
642 if(retv)
643 *retv = val;
644 return S_OK;
645 }
646
647 /* ECMA-262 3rd Edition 10.1.4 */
648 static HRESULT identifier_eval(script_ctx_t *ctx, BSTR identifier, DWORD flags, jsexcept_t *ei, exprval_t *ret)
649 {
650 scope_chain_t *scope;
651 named_item_t *item;
652 DISPID id = 0;
653 HRESULT hres;
654
655 TRACE("%s\n", debugstr_w(identifier));
656
657 for(scope = ctx->exec_ctx->scope_chain; scope; scope = scope->next) {
658 hres = jsdisp_get_id(scope->obj, identifier, 0, &id);
659 if(SUCCEEDED(hres)) {
660 exprval_set_idref(ret, to_disp(scope->obj), id);
661 return S_OK;
662 }
663 }
664
665 hres = jsdisp_get_id(ctx->global, identifier, 0, &id);
666 if(SUCCEEDED(hres)) {
667 exprval_set_idref(ret, to_disp(ctx->global), id);
668 return S_OK;
669 }
670
671 for(item = ctx->named_items; item; item = item->next) {
672 if((item->flags & SCRIPTITEM_ISVISIBLE) && !strcmpW(item->name, identifier)) {
673 if(!item->disp) {
674 IUnknown *unk;
675
676 if(!ctx->site)
677 break;
678
679 hres = IActiveScriptSite_GetItemInfo(ctx->site, identifier,
680 SCRIPTINFO_IUNKNOWN, &unk, NULL);
681 if(FAILED(hres)) {
682 WARN("GetItemInfo failed: %08x\n", hres);
683 break;
684 }
685
686 hres = IUnknown_QueryInterface(unk, &IID_IDispatch, (void**)&item->disp);
687 IUnknown_Release(unk);
688 if(FAILED(hres)) {
689 WARN("object does not implement IDispatch\n");
690 break;
691 }
692 }
693
694 ret->type = EXPRVAL_VARIANT;
695 V_VT(&ret->u.var) = VT_DISPATCH;
696 V_DISPATCH(&ret->u.var) = item->disp;
697 IDispatch_AddRef(item->disp);
698 return S_OK;
699 }
700 }
701
702 if(lookup_global_members(ctx, identifier, ret))
703 return S_OK;
704
705 if(flags & EXPR_NEWREF) {
706 hres = jsdisp_get_id(ctx->global, identifier, fdexNameEnsure, &id);
707 if(FAILED(hres))
708 return hres;
709
710 exprval_set_idref(ret, to_disp(ctx->global), id);
711 return S_OK;
712 }
713
714 ret->type = EXPRVAL_INVALID;
715 ret->u.identifier = SysAllocString(identifier);
716 if(!ret->u.identifier)
717 return E_OUTOFMEMORY;
718
719 return S_OK;
720 }
721
722 /* ECMA-262 3rd Edition 12.1 */
723 HRESULT block_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
724 {
725 block_statement_t *stat = (block_statement_t*)_stat;
726 VARIANT val, tmp;
727 statement_t *iter;
728 HRESULT hres = S_OK;
729
730 TRACE("\n");
731
732 V_VT(&val) = VT_EMPTY;
733 for(iter = stat->stat_list; iter; iter = iter->next) {
734 hres = stat_eval(ctx, iter, rt, &tmp);
735 if(FAILED(hres))
736 break;
737
738 VariantClear(&val);
739 val = tmp;
740 if(rt->type != RT_NORMAL)
741 break;
742 }
743
744 if(FAILED(hres)) {
745 VariantClear(&val);
746 return hres;
747 }
748
749 *ret = val;
750 return S_OK;
751 }
752
753 /* ECMA-262 3rd Edition 12.2 */
754 static HRESULT variable_list_eval(script_ctx_t *ctx, variable_declaration_t *var_list, jsexcept_t *ei)
755 {
756 variable_declaration_t *iter;
757 HRESULT hres = S_OK;
758
759 for(iter = var_list; iter; iter = iter->next) {
760 exprval_t exprval;
761 VARIANT val;
762
763 if(!iter->expr)
764 continue;
765
766 hres = expr_eval(ctx, iter->expr, 0, ei, &exprval);
767 if(FAILED(hres))
768 break;
769
770 hres = exprval_to_value(ctx, &exprval, ei, &val);
771 exprval_release(&exprval);
772 if(FAILED(hres))
773 break;
774
775 hres = jsdisp_propput_name(ctx->exec_ctx->var_disp, iter->identifier, &val, ei, NULL/*FIXME*/);
776 VariantClear(&val);
777 if(FAILED(hres))
778 break;
779 }
780
781 return hres;
782 }
783
784 /* ECMA-262 3rd Edition 12.2 */
785 HRESULT var_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
786 {
787 var_statement_t *stat = (var_statement_t*)_stat;
788 HRESULT hres;
789
790 TRACE("\n");
791
792 hres = variable_list_eval(ctx, stat->variable_list, &rt->ei);
793 if(FAILED(hres))
794 return hres;
795
796 V_VT(ret) = VT_EMPTY;
797 return S_OK;
798 }
799
800 /* ECMA-262 3rd Edition 12.3 */
801 HRESULT empty_statement_eval(script_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
802 {
803 TRACE("\n");
804
805 V_VT(ret) = VT_EMPTY;
806 return S_OK;
807 }
808
809 /* ECMA-262 3rd Edition 12.4 */
810 HRESULT expression_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
811 {
812 expression_statement_t *stat = (expression_statement_t*)_stat;
813 exprval_t exprval;
814 VARIANT val;
815 HRESULT hres;
816
817 TRACE("\n");
818
819 hres = expr_eval(ctx, stat->expr, EXPR_NOVAL, &rt->ei, &exprval);
820 if(FAILED(hres))
821 return hres;
822
823 hres = exprval_to_value(ctx, &exprval, &rt->ei, &val);
824 exprval_release(&exprval);
825 if(FAILED(hres))
826 return hres;
827
828 *ret = val;
829 TRACE("= %s\n", debugstr_variant(ret));
830 return S_OK;
831 }
832
833 /* ECMA-262 3rd Edition 12.5 */
834 HRESULT if_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
835 {
836 if_statement_t *stat = (if_statement_t*)_stat;
837 exprval_t exprval;
838 VARIANT_BOOL b;
839 HRESULT hres;
840
841 TRACE("\n");
842
843 hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
844 if(FAILED(hres))
845 return hres;
846
847 hres = exprval_to_boolean(ctx, &exprval, &rt->ei, &b);
848 exprval_release(&exprval);
849 if(FAILED(hres))
850 return hres;
851
852 if(b)
853 hres = stat_eval(ctx, stat->if_stat, rt, ret);
854 else if(stat->else_stat)
855 hres = stat_eval(ctx, stat->else_stat, rt, ret);
856 else
857 V_VT(ret) = VT_EMPTY;
858
859 return hres;
860 }
861
862 /* ECMA-262 3rd Edition 12.6.2 */
863 HRESULT while_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
864 {
865 while_statement_t *stat = (while_statement_t*)_stat;
866 exprval_t exprval;
867 VARIANT val, tmp;
868 VARIANT_BOOL b;
869 BOOL test_expr;
870 HRESULT hres;
871
872 TRACE("\n");
873
874 V_VT(&val) = VT_EMPTY;
875 test_expr = !stat->do_while;
876
877 while(1) {
878 if(test_expr) {
879 hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
880 if(FAILED(hres))
881 break;
882
883 hres = exprval_to_boolean(ctx, &exprval, &rt->ei, &b);
884 exprval_release(&exprval);
885 if(FAILED(hres) || !b)
886 break;
887 }else {
888 test_expr = TRUE;
889 }
890
891 hres = stat_eval(ctx, stat->statement, rt, &tmp);
892 if(FAILED(hres))
893 break;
894
895 VariantClear(&val);
896 val = tmp;
897
898 if(rt->type == RT_CONTINUE)
899 rt->type = RT_NORMAL;
900 if(rt->type != RT_NORMAL)
901 break;
902 }
903
904 if(FAILED(hres)) {
905 VariantClear(&val);
906 return hres;
907 }
908
909 if(rt->type == RT_BREAK)
910 rt->type = RT_NORMAL;
911
912 *ret = val;
913 return S_OK;
914 }
915
916 /* ECMA-262 3rd Edition 12.6.3 */
917 HRESULT for_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
918 {
919 for_statement_t *stat = (for_statement_t*)_stat;
920 VARIANT val, tmp, retv;
921 exprval_t exprval;
922 VARIANT_BOOL b;
923 HRESULT hres;
924
925 TRACE("\n");
926
927 if(stat->variable_list) {
928 hres = variable_list_eval(ctx, stat->variable_list, &rt->ei);
929 if(FAILED(hres))
930 return hres;
931 }else if(stat->begin_expr) {
932 hres = expr_eval(ctx, stat->begin_expr, EXPR_NEWREF, &rt->ei, &exprval);
933 if(FAILED(hres))
934 return hres;
935
936 hres = exprval_to_value(ctx, &exprval, &rt->ei, &val);
937 exprval_release(&exprval);
938 if(FAILED(hres))
939 return hres;
940
941 VariantClear(&val);
942 }
943
944 V_VT(&retv) = VT_EMPTY;
945
946 while(1) {
947 if(stat->expr) {
948 hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
949 if(FAILED(hres))
950 break;
951
952 hres = exprval_to_boolean(ctx, &exprval, &rt->ei, &b);
953 exprval_release(&exprval);
954 if(FAILED(hres) || !b)
955 break;
956 }
957
958 hres = stat_eval(ctx, stat->statement, rt, &tmp);
959 if(FAILED(hres))
960 break;
961
962 VariantClear(&retv);
963 retv = tmp;
964
965 if(rt->type == RT_CONTINUE)
966 rt->type = RT_NORMAL;
967 else if(rt->type != RT_NORMAL)
968 break;
969
970 if(stat->end_expr) {
971 hres = expr_eval(ctx, stat->end_expr, 0, &rt->ei, &exprval);
972 if(FAILED(hres))
973 break;
974
975 hres = exprval_to_value(ctx, &exprval, &rt->ei, &val);
976 exprval_release(&exprval);
977 if(FAILED(hres))
978 break;
979
980 VariantClear(&val);
981 }
982 }
983
984 if(FAILED(hres)) {
985 VariantClear(&retv);
986 return hres;
987 }
988
989 if(rt->type == RT_BREAK)
990 rt->type = RT_NORMAL;
991
992 *ret = retv;
993 return S_OK;
994 }
995
996 /* ECMA-262 3rd Edition 12.6.4 */
997 HRESULT forin_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
998 {
999 forin_statement_t *stat = (forin_statement_t*)_stat;
1000 VARIANT val, name, retv, tmp;
1001 DISPID id = DISPID_STARTENUM;
1002 BSTR str, identifier = NULL;
1003 IDispatchEx *in_obj;
1004 exprval_t exprval;
1005 HRESULT hres;
1006
1007 TRACE("\n");
1008
1009 if(stat->variable) {
1010 hres = variable_list_eval(ctx, stat->variable, &rt->ei);
1011 if(FAILED(hres))
1012 return hres;
1013 }
1014
1015 hres = expr_eval(ctx, stat->in_expr, EXPR_NEWREF, &rt->ei, &exprval);
1016 if(FAILED(hres))
1017 return hres;
1018
1019 hres = exprval_to_value(ctx, &exprval, &rt->ei, &val);
1020 exprval_release(&exprval);
1021 if(FAILED(hres))
1022 return hres;
1023
1024 if(V_VT(&val) != VT_DISPATCH) {
1025 TRACE("in vt %d\n", V_VT(&val));
1026 VariantClear(&val);
1027 V_VT(ret) = VT_EMPTY;
1028 return S_OK;
1029 }
1030
1031 hres = IDispatch_QueryInterface(V_DISPATCH(&val), &IID_IDispatchEx, (void**)&in_obj);
1032 IDispatch_Release(V_DISPATCH(&val));
1033 if(FAILED(hres)) {
1034 TRACE("Object doesn't support IDispatchEx\n");
1035 V_VT(ret) = VT_EMPTY;
1036 return S_OK;
1037 }
1038
1039 V_VT(&retv) = VT_EMPTY;
1040
1041 if(stat->variable)
1042 identifier = SysAllocString(stat->variable->identifier);
1043
1044 while(1) {
1045 hres = IDispatchEx_GetNextDispID(in_obj, fdexEnumDefault, id, &id);
1046 if(FAILED(hres) || hres == S_FALSE)
1047 break;
1048
1049 hres = IDispatchEx_GetMemberName(in_obj, id, &str);
1050 if(FAILED(hres))
1051 break;
1052
1053 TRACE("iter %s\n", debugstr_w(str));
1054
1055 if(stat->variable)
1056 hres = identifier_eval(ctx, identifier, 0, NULL, &exprval);
1057 else
1058 hres = expr_eval(ctx, stat->expr, EXPR_NEWREF, &rt->ei, &exprval);
1059 if(SUCCEEDED(hres)) {
1060 V_VT(&name) = VT_BSTR;
1061 V_BSTR(&name) = str;
1062 hres = put_value(ctx, &exprval, &name, &rt->ei);
1063 exprval_release(&exprval);
1064 }
1065 SysFreeString(str);
1066 if(FAILED(hres))
1067 break;
1068
1069 hres = stat_eval(ctx, stat->statement, rt, &tmp);
1070 if(FAILED(hres))
1071 break;
1072
1073 VariantClear(&retv);
1074 retv = tmp;
1075
1076 if(rt->type == RT_CONTINUE)
1077 rt->type = RT_NORMAL;
1078 else if(rt->type != RT_NORMAL)
1079 break;
1080 }
1081
1082 SysFreeString(identifier);
1083 IDispatchEx_Release(in_obj);
1084 if(FAILED(hres)) {
1085 VariantClear(&retv);
1086 return hres;
1087 }
1088
1089 if(rt->type == RT_BREAK)
1090 rt->type = RT_NORMAL;
1091
1092 *ret = retv;
1093 return S_OK;
1094 }
1095
1096 /* ECMA-262 3rd Edition 12.7 */
1097 HRESULT continue_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1098 {
1099 branch_statement_t *stat = (branch_statement_t*)_stat;
1100
1101 TRACE("\n");
1102
1103 if(stat->identifier) {
1104 FIXME("indentifier not implemented\n");
1105 return E_NOTIMPL;
1106 }
1107
1108 rt->type = RT_CONTINUE;
1109 V_VT(ret) = VT_EMPTY;
1110 return S_OK;
1111 }
1112
1113 /* ECMA-262 3rd Edition 12.8 */
1114 HRESULT break_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1115 {
1116 branch_statement_t *stat = (branch_statement_t*)_stat;
1117
1118 TRACE("\n");
1119
1120 if(stat->identifier) {
1121 FIXME("indentifier not implemented\n");
1122 return E_NOTIMPL;
1123 }
1124
1125 rt->type = RT_BREAK;
1126 V_VT(ret) = VT_EMPTY;
1127 return S_OK;
1128 }
1129
1130 /* ECMA-262 3rd Edition 12.9 */
1131 HRESULT return_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1132 {
1133 expression_statement_t *stat = (expression_statement_t*)_stat;
1134 HRESULT hres;
1135
1136 TRACE("\n");
1137
1138 if(stat->expr) {
1139 exprval_t exprval;
1140
1141 hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
1142 if(FAILED(hres))
1143 return hres;
1144
1145 hres = exprval_to_value(ctx, &exprval, &rt->ei, ret);
1146 exprval_release(&exprval);
1147 if(FAILED(hres))
1148 return hres;
1149 }else {
1150 V_VT(ret) = VT_EMPTY;
1151 }
1152
1153 TRACE("= %s\n", debugstr_variant(ret));
1154 rt->type = RT_RETURN;
1155 return S_OK;
1156 }
1157
1158 /* ECMA-262 3rd Edition 12.10 */
1159 HRESULT with_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1160 {
1161 with_statement_t *stat = (with_statement_t*)_stat;
1162 exprval_t exprval;
1163 IDispatch *disp;
1164 jsdisp_t *obj;
1165 VARIANT val;
1166 HRESULT hres;
1167
1168 TRACE("\n");
1169
1170 hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
1171 if(FAILED(hres))
1172 return hres;
1173
1174 hres = exprval_to_value(ctx, &exprval, &rt->ei, &val);
1175 exprval_release(&exprval);
1176 if(FAILED(hres))
1177 return hres;
1178
1179 hres = to_object(ctx, &val, &disp);
1180 VariantClear(&val);
1181 if(FAILED(hres))
1182 return hres;
1183
1184 obj = iface_to_jsdisp((IUnknown*)disp);
1185 IDispatch_Release(disp);
1186 if(!obj) {
1187 FIXME("disp id not jsdisp\n");
1188 return E_NOTIMPL;
1189 }
1190
1191 hres = scope_push(ctx->exec_ctx->scope_chain, obj, &ctx->exec_ctx->scope_chain);
1192 jsdisp_release(obj);
1193 if(FAILED(hres))
1194 return hres;
1195
1196 hres = stat_eval(ctx, stat->statement, rt, ret);
1197
1198 scope_pop(&ctx->exec_ctx->scope_chain);
1199 return hres;
1200 }
1201
1202 /* ECMA-262 3rd Edition 12.12 */
1203 HRESULT labelled_statement_eval(script_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
1204 {
1205 FIXME("\n");
1206 return E_NOTIMPL;
1207 }
1208
1209 /* ECMA-262 3rd Edition 12.13 */
1210 HRESULT switch_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1211 {
1212 switch_statement_t *stat = (switch_statement_t*)_stat;
1213 case_clausule_t *iter, *default_clausule = NULL;
1214 statement_t *stat_iter;
1215 VARIANT val, cval;
1216 exprval_t exprval;
1217 BOOL b;
1218 HRESULT hres;
1219
1220 TRACE("\n");
1221
1222 hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
1223 if(FAILED(hres))
1224 return hres;
1225
1226 hres = exprval_to_value(ctx, &exprval, &rt->ei, &val);
1227 exprval_release(&exprval);
1228 if(FAILED(hres))
1229 return hres;
1230
1231 for(iter = stat->case_list; iter; iter = iter->next) {
1232 if(!iter->expr) {
1233 default_clausule = iter;
1234 continue;
1235 }
1236
1237 hres = expr_eval(ctx, iter->expr, 0, &rt->ei, &exprval);
1238 if(FAILED(hres))
1239 break;
1240
1241 hres = exprval_to_value(ctx, &exprval, &rt->ei, &cval);
1242 exprval_release(&exprval);
1243 if(FAILED(hres))
1244 break;
1245
1246 hres = equal2_values(&val, &cval, &b);
1247 VariantClear(&cval);
1248 if(FAILED(hres) || b)
1249 break;
1250 }
1251
1252 VariantClear(&val);
1253 if(FAILED(hres))
1254 return hres;
1255
1256 if(!iter)
1257 iter = default_clausule;
1258
1259 V_VT(&val) = VT_EMPTY;
1260 if(iter) {
1261 VARIANT tmp;
1262
1263 for(stat_iter = iter->stat; stat_iter; stat_iter = stat_iter->next) {
1264 hres = stat_eval(ctx, stat_iter, rt, &tmp);
1265 if(FAILED(hres))
1266 break;
1267
1268 VariantClear(&val);
1269 val = tmp;
1270
1271 if(rt->type != RT_NORMAL)
1272 break;
1273 }
1274 }
1275
1276 if(FAILED(hres)) {
1277 VariantClear(&val);
1278 return hres;
1279 }
1280
1281 if(rt->type == RT_BREAK)
1282 rt->type = RT_NORMAL;
1283
1284 *ret = val;
1285 return S_OK;
1286 }
1287
1288 /* ECMA-262 3rd Edition 12.13 */
1289 HRESULT throw_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1290 {
1291 expression_statement_t *stat = (expression_statement_t*)_stat;
1292 exprval_t exprval;
1293 VARIANT val;
1294 HRESULT hres;
1295
1296 TRACE("\n");
1297
1298 hres = expr_eval(ctx, stat->expr, 0, &rt->ei, &exprval);
1299 if(FAILED(hres))
1300 return hres;
1301
1302 hres = exprval_to_value(ctx, &exprval, &rt->ei, &val);
1303 exprval_release(&exprval);
1304 if(FAILED(hres))
1305 return hres;
1306
1307 rt->ei.var = val;
1308 return DISP_E_EXCEPTION;
1309 }
1310
1311 static HRESULT interp_throw(exec_ctx_t *ctx)
1312 {
1313 const HRESULT arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
1314
1315 TRACE("%08x\n", arg);
1316
1317 return throw_reference_error(ctx->parser->script, &ctx->ei, arg, NULL);
1318 }
1319
1320 /* ECMA-262 3rd Edition 12.14 */
1321 static HRESULT catch_eval(script_ctx_t *ctx, catch_block_t *block, return_type_t *rt, VARIANT *ret)
1322 {
1323 jsdisp_t *var_disp;
1324 VARIANT ex, val;
1325 HRESULT hres;
1326
1327 ex = rt->ei.var;
1328 memset(&rt->ei, 0, sizeof(jsexcept_t));
1329
1330 hres = create_dispex(ctx, NULL, NULL, &var_disp);
1331 if(SUCCEEDED(hres)) {
1332 hres = jsdisp_propput_name(var_disp, block->identifier, &ex, &rt->ei, NULL/*FIXME*/);
1333 if(SUCCEEDED(hres)) {
1334 hres = scope_push(ctx->exec_ctx->scope_chain, var_disp, &ctx->exec_ctx->scope_chain);
1335 if(SUCCEEDED(hres)) {
1336 hres = stat_eval(ctx, block->statement, rt, &val);
1337 scope_pop(&ctx->exec_ctx->scope_chain);
1338 }
1339 }
1340
1341 jsdisp_release(var_disp);
1342 }
1343
1344 VariantClear(&ex);
1345 if(FAILED(hres))
1346 return hres;
1347
1348 *ret = val;
1349 return S_OK;
1350 }
1351
1352 /* ECMA-262 3rd Edition 12.14 */
1353 HRESULT try_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
1354 {
1355 try_statement_t *stat = (try_statement_t*)_stat;
1356 VARIANT val;
1357 HRESULT hres;
1358
1359 TRACE("\n");
1360
1361 hres = stat_eval(ctx, stat->try_statement, rt, &val);
1362 if(FAILED(hres)) {
1363 TRACE("EXCEPTION\n");
1364 if(!stat->catch_block)
1365 return hres;
1366
1367 hres = catch_eval(ctx, stat->catch_block, rt, &val);
1368 if(FAILED(hres))
1369 return hres;
1370 }
1371
1372 if(stat->finally_statement) {
1373 VariantClear(&val);
1374 hres = stat_eval(ctx, stat->finally_statement, rt, &val);
1375 if(FAILED(hres))
1376 return hres;
1377 }
1378
1379 *ret = val;
1380 return S_OK;
1381 }
1382
1383 static HRESULT return_bool(exprval_t *ret, DWORD b)
1384 {
1385 ret->type = EXPRVAL_VARIANT;
1386 V_VT(&ret->u.var) = VT_BOOL;
1387 V_BOOL(&ret->u.var) = b ? VARIANT_TRUE : VARIANT_FALSE;
1388
1389 return S_OK;
1390 }
1391
1392 static HRESULT get_binary_expr_values(script_ctx_t *ctx, binary_expression_t *expr, jsexcept_t *ei, VARIANT *lval, VARIANT *rval)
1393 {
1394 exprval_t exprval;
1395 HRESULT hres;
1396
1397 hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
1398 if(FAILED(hres))
1399 return hres;
1400
1401 hres = exprval_to_value(ctx, &exprval, ei, lval);
1402 exprval_release(&exprval);
1403 if(FAILED(hres))
1404 return hres;
1405
1406 hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
1407 if(SUCCEEDED(hres)) {
1408 hres = exprval_to_value(ctx, &exprval, ei, rval);
1409 exprval_release(&exprval);
1410 }
1411
1412 if(FAILED(hres)) {
1413 VariantClear(lval);
1414 return hres;
1415 }
1416
1417 return S_OK;
1418 }
1419
1420 typedef HRESULT (*oper_t)(script_ctx_t*,VARIANT*,VARIANT*,jsexcept_t*,VARIANT*);
1421
1422 static HRESULT binary_expr_eval(script_ctx_t *ctx, binary_expression_t *expr, oper_t oper, jsexcept_t *ei,
1423 exprval_t *ret)
1424 {
1425 VARIANT lval, rval, retv;
1426 HRESULT hres;
1427
1428 hres = get_binary_expr_values(ctx, expr, ei, &lval, &rval);
1429 if(FAILED(hres))
1430 return hres;
1431
1432 hres = oper(ctx, &lval, &rval, ei, &retv);
1433 VariantClear(&lval);
1434 VariantClear(&rval);
1435 if(FAILED(hres))
1436 return hres;
1437
1438 ret->type = EXPRVAL_VARIANT;
1439 ret->u.var = retv;
1440 return S_OK;
1441 }
1442
1443 /* ECMA-262 3rd Edition 11.13.2 */
1444 static HRESULT assign_oper_eval(script_ctx_t *ctx, expression_t *lexpr, expression_t *rexpr, oper_t oper,
1445 jsexcept_t *ei, exprval_t *ret)
1446 {
1447 VARIANT retv, lval, rval;
1448 exprval_t exprval, exprvalr;
1449 HRESULT hres;
1450
1451 hres = expr_eval(ctx, lexpr, EXPR_NEWREF, ei, &exprval);
1452 if(FAILED(hres))
1453 return hres;
1454
1455 hres = exprval_value(ctx, &exprval, ei, &lval);
1456 if(SUCCEEDED(hres)) {
1457 hres = expr_eval(ctx, rexpr, 0, ei, &exprvalr);
1458 if(SUCCEEDED(hres)) {
1459 hres = exprval_value(ctx, &exprvalr, ei, &rval);
1460 exprval_release(&exprvalr);
1461 }
1462 if(SUCCEEDED(hres)) {
1463 hres = oper(ctx, &lval, &rval, ei, &retv);
1464 VariantClear(&rval);
1465 }
1466 VariantClear(&lval);
1467 }
1468
1469 if(SUCCEEDED(hres)) {
1470 hres = put_value(ctx, &exprval, &retv, ei);
1471 if(FAILED(hres))
1472 VariantClear(&retv);
1473 }
1474 exprval_release(&exprval);
1475
1476 if(FAILED(hres))
1477 return hres;
1478
1479 ret->type = EXPRVAL_VARIANT;
1480 ret->u.var = retv;
1481 return S_OK;
1482 }
1483
1484 /* ECMA-262 3rd Edition 13 */
1485 HRESULT function_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1486 {
1487 function_expression_t *expr = (function_expression_t*)_expr;
1488 VARIANT var;
1489 HRESULT hres;
1490
1491 TRACE("\n");
1492
1493 if(expr->identifier) {
1494 hres = jsdisp_propget_name(ctx->exec_ctx->var_disp, expr->identifier, &var, ei, NULL/*FIXME*/);
1495 if(FAILED(hres))
1496 return hres;
1497 }else {
1498 jsdisp_t *dispex;
1499
1500 hres = create_source_function(ctx->exec_ctx->parser, expr->parameter_list, expr->source_elements, ctx->exec_ctx->scope_chain,
1501 expr->src_str, expr->src_len, &dispex);
1502 if(FAILED(hres))
1503 return hres;
1504
1505 var_set_jsdisp(&var, dispex);
1506 }
1507
1508 ret->type = EXPRVAL_VARIANT;
1509 ret->u.var = var;
1510 return S_OK;
1511 }
1512
1513 /* ECMA-262 3rd Edition 11.2.1 */
1514 HRESULT array_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1515 {
1516 binary_expression_t *expr = (binary_expression_t*)_expr;
1517 exprval_t exprval;
1518 VARIANT member, val;
1519 DISPID id;
1520 BSTR str;
1521 IDispatch *obj = NULL;
1522 HRESULT hres;
1523
1524 TRACE("\n");
1525
1526 hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
1527 if(FAILED(hres))
1528 return hres;
1529
1530 hres = exprval_to_value(ctx, &exprval, ei, &member);
1531 exprval_release(&exprval);
1532 if(FAILED(hres))
1533 return hres;
1534
1535 hres = expr_eval(ctx, expr->expression2, EXPR_NEWREF, ei, &exprval);
1536 if(SUCCEEDED(hres)) {
1537 hres = exprval_to_value(ctx, &exprval, ei, &val);
1538 exprval_release(&exprval);
1539 }
1540
1541 if(SUCCEEDED(hres)) {
1542 hres = to_object(ctx, &member, &obj);
1543 if(FAILED(hres))
1544 VariantClear(&val);
1545 }
1546 VariantClear(&member);
1547 if(SUCCEEDED(hres)) {
1548 hres = to_string(ctx, &val, ei, &str);
1549 VariantClear(&val);
1550 if(SUCCEEDED(hres)) {
1551 hres = disp_get_id(ctx, obj, str, flags & EXPR_NEWREF ? fdexNameEnsure : 0, &id);
1552 SysFreeString(str);
1553 }
1554
1555 if(SUCCEEDED(hres)) {
1556 exprval_set_idref(ret, obj, id);
1557 }else if(!(flags & EXPR_NEWREF) && hres == DISP_E_UNKNOWNNAME) {
1558 exprval_init(ret);
1559 hres = S_OK;
1560 }
1561
1562 IDispatch_Release(obj);
1563 }
1564
1565 return hres;
1566 }
1567
1568 /* ECMA-262 3rd Edition 11.2.1 */
1569 static HRESULT interp_array(exec_ctx_t *ctx)
1570 {
1571 VARIANT v, *namev;
1572 IDispatch *obj;
1573 DISPID id;
1574 BSTR name;
1575 HRESULT hres;
1576
1577 TRACE("\n");
1578
1579 namev = stack_pop(ctx);
1580
1581 hres = stack_pop_object(ctx, &obj);
1582 if(FAILED(hres)) {
1583 VariantClear(namev);
1584 return hres;
1585 }
1586
1587 hres = to_string(ctx->parser->script, namev, &ctx->ei, &name);
1588 VariantClear(namev);
1589 if(FAILED(hres)) {
1590 IDispatch_Release(obj);
1591 return hres;
1592 }
1593
1594 hres = disp_get_id(ctx->parser->script, obj, name, 0, &id);
1595 SysFreeString(name);
1596 if(SUCCEEDED(hres)) {
1597 hres = disp_propget(ctx->parser->script, obj, id, &v, &ctx->ei, NULL/*FIXME*/);
1598 }else if(hres == DISP_E_UNKNOWNNAME) {
1599 V_VT(&v) = VT_EMPTY;
1600 hres = S_OK;
1601 }
1602 IDispatch_Release(obj);
1603 if(FAILED(hres))
1604 return hres;
1605
1606 return stack_push(ctx, &v);
1607 }
1608
1609 /* ECMA-262 3rd Edition 11.2.1 */
1610 HRESULT member_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1611 {
1612 member_expression_t *expr = (member_expression_t*)_expr;
1613 IDispatch *obj = NULL;
1614 exprval_t exprval;
1615 VARIANT member;
1616 DISPID id;
1617 BSTR str;
1618 HRESULT hres;
1619
1620 TRACE("\n");
1621
1622 hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
1623 if(FAILED(hres))
1624 return hres;
1625
1626 hres = exprval_to_value(ctx, &exprval, ei, &member);
1627 exprval_release(&exprval);
1628 if(FAILED(hres))
1629 return hres;
1630
1631 hres = to_object(ctx, &member, &obj);
1632 VariantClear(&member);
1633 if(FAILED(hres))
1634 return hres;
1635
1636 str = SysAllocString(expr->identifier);
1637 if(!str) {
1638 IDispatch_Release(obj);
1639 return E_OUTOFMEMORY;
1640 }
1641
1642 hres = disp_get_id(ctx, obj, str, flags & EXPR_NEWREF ? fdexNameEnsure : 0, &id);
1643 SysFreeString(str);
1644 if(SUCCEEDED(hres)) {
1645 exprval_set_idref(ret, obj, id);
1646 }else if(!(flags & EXPR_NEWREF) && hres == DISP_E_UNKNOWNNAME) {
1647 exprval_init(ret);
1648 hres = S_OK;
1649 }
1650
1651 IDispatch_Release(obj);
1652 return hres;
1653 }
1654
1655 /* ECMA-262 3rd Edition 11.2.1 */
1656 static HRESULT interp_member(exec_ctx_t *ctx)
1657 {
1658 const BSTR arg = ctx->parser->code->instrs[ctx->ip].arg1.bstr;
1659 IDispatch *obj;
1660 VARIANT v;
1661 DISPID id;
1662 HRESULT hres;
1663
1664 TRACE("\n");
1665
1666 hres = stack_pop_object(ctx, &obj);
1667 if(FAILED(hres))
1668 return hres;
1669
1670 hres = disp_get_id(ctx->parser->script, obj, arg, 0, &id);
1671 if(SUCCEEDED(hres)) {
1672 hres = disp_propget(ctx->parser->script, obj, id, &v, &ctx->ei, NULL/*FIXME*/);
1673 }else if(hres == DISP_E_UNKNOWNNAME) {
1674 V_VT(&v) = VT_EMPTY;
1675 hres = S_OK;
1676 }
1677 IDispatch_Release(obj);
1678 if(FAILED(hres))
1679 return hres;
1680
1681 return stack_push(ctx, &v);
1682 }
1683
1684 /* ECMA-262 3rd Edition 11.2.1 */
1685 static HRESULT interp_memberid(exec_ctx_t *ctx)
1686 {
1687 const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
1688 VARIANT *objv, *namev;
1689 IDispatch *obj;
1690 BSTR name;
1691 DISPID id;
1692 HRESULT hres;
1693
1694 TRACE("%x\n", arg);
1695
1696 namev = stack_pop(ctx);
1697 objv = stack_pop(ctx);
1698
1699 hres = to_object(ctx->parser->script, objv, &obj);
1700 VariantClear(objv);
1701 if(SUCCEEDED(hres)) {
1702 hres = to_string(ctx->parser->script, namev, &ctx->ei, &name);
1703 if(FAILED(hres))
1704 IDispatch_Release(obj);
1705 }
1706 VariantClear(namev);
1707 if(FAILED(hres))
1708 return hres;
1709
1710 hres = disp_get_id(ctx->parser->script, obj, name, arg, &id);
1711 SysFreeString(name);
1712 if(FAILED(hres)) {
1713 IDispatch_Release(obj);
1714 if(hres == DISP_E_UNKNOWNNAME && !(arg & fdexNameEnsure)) {
1715 obj = NULL;
1716 id = JS_E_INVALID_PROPERTY;
1717 }else {
1718 return hres;
1719 }
1720 }
1721
1722 return stack_push_objid(ctx, obj, id);
1723 }
1724
1725 /* ECMA-262 3rd Edition 11.2.1 */
1726 static HRESULT interp_refval(exec_ctx_t *ctx)
1727 {
1728 IDispatch *disp;
1729 VARIANT v;
1730 DISPID id;
1731 HRESULT hres;
1732
1733 TRACE("\n");
1734
1735 disp = stack_topn_objid(ctx, 0, &id);
1736 if(!disp)
1737 return throw_reference_error(ctx->parser->script, &ctx->ei, JS_E_ILLEGAL_ASSIGN, NULL);
1738
1739 hres = disp_propget(ctx->parser->script, disp, id, &v, &ctx->ei, NULL/*FIXME*/);
1740 if(FAILED(hres))
1741 return hres;
1742
1743 return stack_push(ctx, &v);
1744 }
1745
1746 static void jsstack_to_dp(exec_ctx_t *ctx, unsigned arg_cnt, DISPPARAMS *dp)
1747 {
1748 VARIANT tmp;
1749 unsigned i;
1750
1751 dp->cArgs = arg_cnt;
1752 dp->rgdispidNamedArgs = NULL;
1753 dp->cNamedArgs = 0;
1754
1755 assert(ctx->top >= arg_cnt);
1756
1757 for(i=1; i*2 <= arg_cnt; i++) {
1758 tmp = ctx->stack[ctx->top-i];
1759 ctx->stack[ctx->top-i] = ctx->stack[ctx->top-arg_cnt+i-1];
1760 ctx->stack[ctx->top-arg_cnt+i-1] = tmp;
1761 }
1762
1763 dp->rgvarg = ctx->stack + ctx->top-arg_cnt;
1764 }
1765
1766 /* ECMA-262 3rd Edition 11.2.2 */
1767 static HRESULT interp_new(exec_ctx_t *ctx)
1768 {
1769 const LONG arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
1770 VARIANT *constr, v;
1771 DISPPARAMS dp;
1772 HRESULT hres;
1773
1774 TRACE("%d\n", arg);
1775
1776 constr = stack_topn(ctx, arg);
1777
1778 /* NOTE: Should use to_object here */
1779
1780 if(V_VT(constr) == VT_NULL)
1781 return throw_type_error(ctx->parser->script, &ctx->ei, JS_E_OBJECT_EXPECTED, NULL);
1782 else if(V_VT(constr) != VT_DISPATCH)
1783 return throw_type_error(ctx->parser->script, &ctx->ei, JS_E_INVALID_ACTION, NULL);
1784 else if(!V_DISPATCH(constr))
1785 return throw_type_error(ctx->parser->script, &ctx->ei, JS_E_INVALID_PROPERTY, NULL);
1786
1787 jsstack_to_dp(ctx, arg, &dp);
1788 hres = disp_call(ctx->parser->script, V_DISPATCH(constr), DISPID_VALUE,
1789 DISPATCH_CONSTRUCT, &dp, &v, &ctx->ei, NULL/*FIXME*/);
1790 if(FAILED(hres))
1791 return hres;
1792
1793 stack_popn(ctx, arg+1);
1794 return stack_push(ctx, &v);
1795 }
1796
1797 /* ECMA-262 3rd Edition 11.2.3 */
1798 static HRESULT interp_call(exec_ctx_t *ctx)
1799 {
1800 const unsigned argn = ctx->parser->code->instrs[ctx->ip].arg1.uint;
1801 const int do_ret = ctx->parser->code->instrs[ctx->ip].arg2.lng;
1802 VARIANT v, *objv;
1803 DISPPARAMS dp;
1804 HRESULT hres;
1805
1806 TRACE("%d %d\n", argn, do_ret);
1807
1808 objv = stack_topn(ctx, argn);
1809 if(V_VT(objv) != VT_DISPATCH)
1810 return throw_type_error(ctx->parser->script, &ctx->ei, JS_E_INVALID_PROPERTY, NULL);
1811
1812 jsstack_to_dp(ctx, argn, &dp);
1813 hres = disp_call(ctx->parser->script, V_DISPATCH(objv), DISPID_VALUE, DISPATCH_METHOD, &dp,
1814 do_ret ? &v : NULL, &ctx->ei, NULL/*FIXME*/);
1815 if(FAILED(hres))
1816 return hres;
1817
1818 stack_popn(ctx, argn+1);
1819 return do_ret ? stack_push(ctx, &v) : S_OK;
1820
1821 }
1822
1823 /* ECMA-262 3rd Edition 11.2.3 */
1824 static HRESULT interp_call_member(exec_ctx_t *ctx)
1825 {
1826 const unsigned argn = ctx->parser->code->instrs[ctx->ip].arg1.uint;
1827 const int do_ret = ctx->parser->code->instrs[ctx->ip].arg2.lng;
1828 IDispatch *obj;
1829 DISPPARAMS dp;
1830 VARIANT v;
1831 DISPID id;
1832 HRESULT hres;
1833
1834 TRACE("%d %d\n", argn, do_ret);
1835
1836 obj = stack_topn_objid(ctx, argn, &id);
1837 if(!obj)
1838 return throw_type_error(ctx->parser->script, &ctx->ei, id, NULL);
1839
1840 jsstack_to_dp(ctx, argn, &dp);
1841 hres = disp_call(ctx->parser->script, obj, id, DISPATCH_METHOD, &dp, do_ret ? &v : NULL, &ctx->ei, NULL/*FIXME*/);
1842 if(FAILED(hres))
1843 return hres;
1844
1845 stack_popn(ctx, argn+2);
1846 return do_ret ? stack_push(ctx, &v) : S_OK;
1847
1848 }
1849
1850 /* ECMA-262 3rd Edition 11.1.1 */
1851 static HRESULT interp_this(exec_ctx_t *ctx)
1852 {
1853 VARIANT v;
1854
1855 TRACE("\n");
1856
1857 V_VT(&v) = VT_DISPATCH;
1858 V_DISPATCH(&v) = ctx->this_obj;
1859 IDispatch_AddRef(ctx->this_obj);
1860 return stack_push(ctx, &v);
1861 }
1862
1863 /* ECMA-262 3rd Edition 10.1.4 */
1864 HRESULT identifier_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
1865 {
1866 identifier_expression_t *expr = (identifier_expression_t*)_expr;
1867 BSTR identifier;
1868 HRESULT hres;
1869
1870 TRACE("\n");
1871
1872 identifier = SysAllocString(expr->identifier);
1873 if(!identifier)
1874 return E_OUTOFMEMORY;
1875
1876 hres = identifier_eval(ctx, identifier, flags, ei, ret);
1877
1878 SysFreeString(identifier);
1879 return hres;
1880 }
1881
1882 /* ECMA-262 3rd Edition 10.1.4 */
1883 static HRESULT interp_ident(exec_ctx_t *ctx)
1884 {
1885 const BSTR arg = ctx->parser->code->instrs[ctx->ip].arg1.bstr;
1886 exprval_t exprval;
1887 VARIANT v;
1888 HRESULT hres;
1889
1890 TRACE("%s\n", debugstr_w(arg));
1891
1892 hres = identifier_eval(ctx->parser->script, arg, 0, &ctx->ei, &exprval);
1893 if(FAILED(hres))
1894 return hres;
1895
1896 hres = exprval_to_value(ctx->parser->script, &exprval, &ctx->ei, &v);
1897 exprval_release(&exprval);
1898 if(FAILED(hres))
1899 return hres;
1900
1901 return stack_push(ctx, &v);
1902 }
1903
1904 /* ECMA-262 3rd Edition 10.1.4 */
1905 static HRESULT interp_identid(exec_ctx_t *ctx)
1906 {
1907 const BSTR arg = ctx->parser->code->instrs[ctx->ip].arg1.bstr;
1908 const unsigned flags = ctx->parser->code->instrs[ctx->ip].arg2.uint;
1909 exprval_t exprval;
1910 HRESULT hres;
1911
1912 TRACE("%s %x\n", debugstr_w(arg), flags);
1913
1914 hres = identifier_eval(ctx->parser->script, arg, (flags&fdexNameEnsure) ? EXPR_NEWREF : 0, &ctx->ei, &exprval);
1915 if(FAILED(hres))
1916 return hres;
1917
1918 if(exprval.type != EXPRVAL_IDREF) {
1919 WARN("invalid ref\n");
1920 exprval_release(&exprval);
1921 return stack_push_objid(ctx, NULL, JS_E_OBJECT_EXPECTED);
1922 }
1923
1924 return stack_push_objid(ctx, exprval.u.idref.disp, exprval.u.idref.id);
1925 }
1926
1927 /* ECMA-262 3rd Edition 7.8.1 */
1928 static HRESULT interp_null(exec_ctx_t *ctx)
1929 {
1930 VARIANT v;
1931
1932 TRACE("\n");
1933
1934 V_VT(&v) = VT_NULL;
1935 return stack_push(ctx, &v);
1936 }
1937
1938 /* ECMA-262 3rd Edition 7.8.2 */
1939 static HRESULT interp_bool(exec_ctx_t *ctx)
1940 {
1941 const LONG arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
1942
1943 TRACE("%s\n", arg ? "true" : "false");
1944
1945 return stack_push_bool(ctx, arg);
1946 }
1947
1948 /* ECMA-262 3rd Edition 7.8.3 */
1949 static HRESULT interp_int(exec_ctx_t *ctx)
1950 {
1951 const LONG arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
1952 VARIANT v;
1953
1954 TRACE("%d\n", arg);
1955
1956 V_VT(&v) = VT_I4;
1957 V_I4(&v) = arg;
1958 return stack_push(ctx, &v);
1959 }
1960
1961 /* ECMA-262 3rd Edition 7.8.3 */
1962 static HRESULT interp_double(exec_ctx_t *ctx)
1963 {
1964 const double arg = *ctx->parser->code->instrs[ctx->ip].arg1.dbl;
1965 VARIANT v;
1966
1967 TRACE("%lf\n", arg);
1968
1969 V_VT(&v) = VT_R8;
1970 V_R8(&v) = arg;
1971 return stack_push(ctx, &v);
1972 }
1973
1974 /* ECMA-262 3rd Edition 7.8.4 */
1975 static HRESULT interp_str(exec_ctx_t *ctx)
1976 {
1977 const WCHAR *str = ctx->parser->code->instrs[ctx->ip].arg1.str;
1978 VARIANT v;
1979
1980 TRACE("%s\n", debugstr_w(str));
1981
1982 V_VT(&v) = VT_BSTR;
1983 V_BSTR(&v) = SysAllocString(str);
1984 if(!V_BSTR(&v))
1985 return E_OUTOFMEMORY;
1986
1987 return stack_push(ctx, &v);
1988 }
1989
1990 /* ECMA-262 3rd Edition 7.8 */
1991 static HRESULT interp_regexp(exec_ctx_t *ctx)
1992 {
1993 const WCHAR *source = ctx->parser->code->instrs[ctx->ip].arg1.str;
1994 const LONG flags = ctx->parser->code->instrs[ctx->ip].arg2.lng;
1995 jsdisp_t *regexp;
1996 VARIANT v;
1997 HRESULT hres;
1998
1999 TRACE("%s %x\n", debugstr_w(source), flags);
2000
2001 hres = create_regexp(ctx->parser->script, source, strlenW(source), flags, &regexp);
2002 if(FAILED(hres))
2003 return hres;
2004
2005 var_set_jsdisp(&v, regexp);
2006 return stack_push(ctx, &v);
2007 }
2008
2009 /* ECMA-262 3rd Edition 11.1.4 */
2010 static HRESULT interp_carray(exec_ctx_t *ctx)
2011 {
2012 const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
2013 jsdisp_t *array;
2014 VARIANT *v, r;
2015 unsigned i;
2016 HRESULT hres;
2017
2018 TRACE("%u\n", arg);
2019
2020 hres = create_array(ctx->parser->script, arg, &array);
2021 if(FAILED(hres))
2022 return hres;
2023
2024 i = arg;
2025 while(i--) {
2026 v = stack_pop(ctx);
2027 hres = jsdisp_propput_idx(array, i, v, &ctx->ei, NULL/*FIXME*/);
2028 VariantClear(v);
2029 if(FAILED(hres)) {
2030 jsdisp_release(array);
2031 return hres;
2032 }
2033 }
2034
2035 var_set_jsdisp(&r, array);
2036 return stack_push(ctx, &r);
2037 }
2038
2039 /* ECMA-262 3rd Edition 11.1.5 */
2040 HRESULT property_value_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2041 {
2042 property_value_expression_t *expr = (property_value_expression_t*)_expr;
2043 VARIANT val, tmp;
2044 jsdisp_t *obj;
2045 prop_val_t *iter;
2046 exprval_t exprval;
2047 BSTR name;
2048 HRESULT hres;
2049
2050 TRACE("\n");
2051
2052 hres = create_object(ctx, NULL, &obj);
2053 if(FAILED(hres))
2054 return hres;
2055
2056 for(iter = expr->property_list; iter; iter = iter->next) {
2057 hres = literal_to_var(ctx, iter->name, &tmp);
2058 if(FAILED(hres))
2059 break;
2060
2061 hres = to_string(ctx, &tmp, ei, &name);
2062 VariantClear(&tmp);
2063 if(FAILED(hres))
2064 break;
2065
2066 hres = expr_eval(ctx, iter->value, 0, ei, &exprval);
2067 if(SUCCEEDED(hres)) {
2068 hres = exprval_to_value(ctx, &exprval, ei, &val);
2069 exprval_release(&exprval);
2070 if(SUCCEEDED(hres)) {
2071 hres = jsdisp_propput_name(obj, name, &val, ei, NULL/*FIXME*/);
2072 VariantClear(&val);
2073 }
2074 }
2075
2076 SysFreeString(name);
2077 if(FAILED(hres))
2078 break;
2079 }
2080
2081 if(FAILED(hres)) {
2082 jsdisp_release(obj);
2083 return hres;
2084 }
2085
2086 ret->type = EXPRVAL_VARIANT;
2087 var_set_jsdisp(&ret->u.var, obj);
2088 return S_OK;
2089 }
2090
2091 /* ECMA-262 3rd Edition 11.11 */
2092 static HRESULT interp_jmp_nz(exec_ctx_t *ctx)
2093 {
2094 const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
2095 VARIANT_BOOL b;
2096 HRESULT hres;
2097
2098 TRACE("\n");
2099
2100 hres = to_boolean(stack_top(ctx), &b);
2101 if(FAILED(hres))
2102 return hres;
2103
2104 if(b) {
2105 ctx->ip = arg;
2106 }else {
2107 stack_popn(ctx, 1);
2108 ctx->ip++;
2109 }
2110 return S_OK;
2111 }
2112
2113 /* ECMA-262 3rd Edition 11.11 */
2114 static HRESULT interp_jmp_z(exec_ctx_t *ctx)
2115 {
2116 const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
2117 VARIANT_BOOL b;
2118 HRESULT hres;
2119
2120 TRACE("\n");
2121
2122 hres = to_boolean(stack_top(ctx), &b);
2123 if(FAILED(hres))
2124 return hres;
2125
2126 if(b) {
2127 stack_popn(ctx, 1);
2128 ctx->ip++;
2129 }else {
2130 ctx->ip = arg;
2131 }
2132 return S_OK;
2133 }
2134
2135 /* ECMA-262 3rd Edition 11.10 */
2136 static HRESULT interp_or(exec_ctx_t *ctx)
2137 {
2138 INT l, r;
2139 HRESULT hres;
2140
2141 TRACE("\n");
2142
2143 hres = stack_pop_int(ctx, &r);
2144 if(FAILED(hres))
2145 return hres;
2146
2147 hres = stack_pop_int(ctx, &l);
2148 if(FAILED(hres))
2149 return hres;
2150
2151 return stack_push_int(ctx, l|r);
2152 }
2153
2154 /* ECMA-262 3rd Edition 11.10 */
2155 static HRESULT interp_xor(exec_ctx_t *ctx)
2156 {
2157 INT l, r;
2158 HRESULT hres;
2159
2160 TRACE("\n");
2161
2162 hres = stack_pop_int(ctx, &r);
2163 if(FAILED(hres))
2164 return hres;
2165
2166 hres = stack_pop_int(ctx, &l);
2167 if(FAILED(hres))
2168 return hres;
2169
2170 return stack_push_int(ctx, l^r);
2171 }
2172
2173 /* ECMA-262 3rd Edition 11.10 */
2174 static HRESULT interp_and(exec_ctx_t *ctx)
2175 {
2176 INT l, r;
2177 HRESULT hres;
2178
2179 TRACE("\n");
2180
2181 hres = stack_pop_int(ctx, &r);
2182 if(FAILED(hres))
2183 return hres;
2184
2185 hres = stack_pop_int(ctx, &l);
2186 if(FAILED(hres))
2187 return hres;
2188
2189 return stack_push_int(ctx, l&r);
2190 }
2191
2192 /* ECMA-262 3rd Edition 11.8.6 */
2193 static HRESULT instanceof_eval(script_ctx_t *ctx, VARIANT *inst, VARIANT *objv, jsexcept_t *ei, VARIANT *retv)
2194 {
2195 jsdisp_t *obj, *iter, *tmp = NULL;
2196 VARIANT_BOOL ret = VARIANT_FALSE;
2197 BOOL b;
2198 VARIANT var;
2199 HRESULT hres;
2200
2201 static const WCHAR prototypeW[] = {'p','r','o','t','o','t', 'y', 'p','e',0};
2202
2203 if(V_VT(objv) != VT_DISPATCH || !V_DISPATCH(objv))
2204 return throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL);
2205
2206 obj = iface_to_jsdisp((IUnknown*)V_DISPATCH(objv));
2207 if(!obj) {
2208 FIXME("non-jsdisp objects not supported\n");
2209 return E_FAIL;
2210 }
2211
2212 if(is_class(obj, JSCLASS_FUNCTION)) {
2213 hres = jsdisp_propget_name(obj, prototypeW, &var, ei, NULL/*FIXME*/);
2214 }else {
2215 hres = throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL);
2216 }
2217 jsdisp_release(obj);
2218 if(FAILED(hres))
2219 return hres;
2220
2221 if(V_VT(&var) == VT_DISPATCH) {
2222 if(V_VT(inst) == VT_DISPATCH)
2223 tmp = iface_to_jsdisp((IUnknown*)V_DISPATCH(inst));
2224 for(iter = tmp; iter; iter = iter->prototype) {
2225 hres = disp_cmp(V_DISPATCH(&var), to_disp(iter), &b);
2226 if(FAILED(hres))
2227 break;
2228 if(b) {
2229 ret = VARIANT_TRUE;
2230 break;
2231 }
2232 }
2233
2234 if(tmp)
2235 jsdisp_release(tmp);
2236 }else {
2237 FIXME("prototype is not an object\n");
2238 hres = E_FAIL;
2239 }
2240
2241 VariantClear(&var);
2242 if(FAILED(hres))
2243 return hres;
2244
2245 V_VT(retv) = VT_BOOL;
2246 V_BOOL(retv) = ret;
2247 return S_OK;
2248 }
2249
2250 /* ECMA-262 3rd Edition 11.8.6 */
2251 HRESULT instanceof_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2252 {
2253 binary_expression_t *expr = (binary_expression_t*)_expr;
2254
2255 TRACE("\n");
2256
2257 return binary_expr_eval(ctx, expr, instanceof_eval, ei, ret);
2258 }
2259
2260 /* ECMA-262 3rd Edition 11.8.7 */
2261 static HRESULT interp_in(exec_ctx_t *ctx)
2262 {
2263 VARIANT *obj, *v;
2264 DISPID id = 0;
2265 BOOL ret;
2266 BSTR str;
2267 HRESULT hres;
2268
2269 TRACE("\n");
2270
2271 obj = stack_pop(ctx);
2272 v = stack_pop(ctx);
2273
2274 if(V_VT(obj) != VT_DISPATCH || !V_DISPATCH(obj)) {
2275 VariantClear(obj);
2276 VariantClear(v);
2277 return throw_type_error(ctx->parser->script, &ctx->ei, JS_E_OBJECT_EXPECTED, NULL);
2278 }
2279
2280 hres = to_string(ctx->parser->script, v, &ctx->ei, &str);
2281 VariantClear(v);
2282 if(FAILED(hres)) {
2283 IDispatch_Release(V_DISPATCH(obj));
2284 return hres;
2285 }
2286
2287 hres = disp_get_id(ctx->parser->script, V_DISPATCH(obj), str, 0, &id);
2288 IDispatch_Release(V_DISPATCH(obj));
2289 SysFreeString(str);
2290 if(SUCCEEDED(hres))
2291 ret = TRUE;
2292 else if(hres == DISP_E_UNKNOWNNAME)
2293 ret = FALSE;
2294 else
2295 return hres;
2296
2297 return stack_push_bool(ctx, ret);
2298 }
2299
2300 /* ECMA-262 3rd Edition 11.6.1 */
2301 static HRESULT add_eval(script_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
2302 {
2303 VARIANT r, l;
2304 HRESULT hres;
2305
2306 hres = to_primitive(ctx, lval, ei, &l, NO_HINT);
2307 if(FAILED(hres))
2308 return hres;
2309
2310 hres = to_primitive(ctx, rval, ei, &r, NO_HINT);
2311 if(FAILED(hres)) {
2312 VariantClear(&l);
2313 return hres;
2314 }
2315
2316 if(V_VT(&l) == VT_BSTR || V_VT(&r) == VT_BSTR) {
2317 BSTR lstr = NULL, rstr = NULL;
2318
2319 if(V_VT(&l) == VT_BSTR)
2320 lstr = V_BSTR(&l);
2321 else
2322 hres = to_string(ctx, &l, ei, &lstr);
2323
2324 if(SUCCEEDED(hres)) {
2325 if(V_VT(&r) == VT_BSTR)
2326 rstr = V_BSTR(&r);
2327 else
2328 hres = to_string(ctx, &r, ei, &rstr);
2329 }
2330
2331 if(SUCCEEDED(hres)) {
2332 int len1, len2;
2333
2334 len1 = SysStringLen(lstr);
2335 len2 = SysStringLen(rstr);
2336
2337 V_VT(retv) = VT_BSTR;
2338 V_BSTR(retv) = SysAllocStringLen(NULL, len1+len2);
2339 memcpy(V_BSTR(retv), lstr, len1*sizeof(WCHAR));
2340 memcpy(V_BSTR(retv)+len1, rstr, (len2+1)*sizeof(WCHAR));
2341 }
2342
2343 if(V_VT(&l) != VT_BSTR)
2344 SysFreeString(lstr);
2345 if(V_VT(&r) != VT_BSTR)
2346 SysFreeString(rstr);
2347 }else {
2348 VARIANT nl, nr;
2349
2350 hres = to_number(ctx, &l, ei, &nl);
2351 if(SUCCEEDED(hres)) {
2352 hres = to_number(ctx, &r, ei, &nr);
2353 if(SUCCEEDED(hres))
2354 num_set_val(retv, num_val(&nl) + num_val(&nr));
2355 }
2356 }
2357
2358 VariantClear(&r);
2359 VariantClear(&l);
2360 return hres;
2361 }
2362
2363 /* ECMA-262 3rd Edition 11.6.1 */
2364 static HRESULT interp_add(exec_ctx_t *ctx)
2365 {
2366 VARIANT *l, *r, ret;
2367 HRESULT hres;
2368
2369 r = stack_pop(ctx);
2370 l = stack_pop(ctx);
2371
2372 TRACE("%s + %s\n", debugstr_variant(l), debugstr_variant(r));
2373
2374 hres = add_eval(ctx->parser->script, l, r, &ctx->ei, &ret);
2375 VariantClear(l);
2376 VariantClear(r);
2377 if(FAILED(hres))
2378 return hres;
2379
2380 return stack_push(ctx, &ret);
2381 }
2382
2383 /* ECMA-262 3rd Edition 11.6.2 */
2384 static HRESULT interp_sub(exec_ctx_t *ctx)
2385 {
2386 VARIANT l, r;
2387 HRESULT hres;
2388
2389 TRACE("\n");
2390
2391 hres = stack_pop_number(ctx, &r);
2392 if(FAILED(hres))
2393 return hres;
2394
2395 hres = stack_pop_number(ctx, &l);
2396 if(FAILED(hres))
2397 return hres;
2398
2399 return stack_push_number(ctx, num_val(&l)-num_val(&r));
2400 }
2401
2402 /* ECMA-262 3rd Edition 11.5.1 */
2403 static HRESULT interp_mul(exec_ctx_t *ctx)
2404 {
2405 VARIANT l, r;
2406 HRESULT hres;
2407
2408 TRACE("\n");
2409
2410 hres = stack_pop_number(ctx, &r);
2411 if(FAILED(hres))
2412 return hres;
2413
2414 hres = stack_pop_number(ctx, &l);
2415 if(FAILED(hres))
2416 return hres;
2417
2418 return stack_push_number(ctx, num_val(&l)*num_val(&r));
2419 }
2420
2421 /* ECMA-262 3rd Edition 11.5.2 */
2422 static HRESULT interp_div(exec_ctx_t *ctx)
2423 {
2424 VARIANT l, r;
2425 HRESULT hres;
2426
2427 TRACE("\n");
2428
2429 hres = stack_pop_number(ctx, &r);
2430 if(FAILED(hres))
2431 return hres;
2432
2433 hres = stack_pop_number(ctx, &l);
2434 if(FAILED(hres))
2435 return hres;
2436
2437 return stack_push_number(ctx, num_val(&l)/num_val(&r));
2438 }
2439
2440 /* ECMA-262 3rd Edition 11.5.3 */
2441 static HRESULT interp_mod(exec_ctx_t *ctx)
2442 {
2443 VARIANT l, r;
2444 HRESULT hres;
2445
2446 TRACE("\n");
2447
2448 hres = stack_pop_number(ctx, &r);
2449 if(FAILED(hres))
2450 return hres;
2451
2452 hres = stack_pop_number(ctx, &l);
2453 if(FAILED(hres))
2454 return hres;
2455
2456 return stack_push_number(ctx, fmod(num_val(&l), num_val(&r)));
2457 }
2458
2459 /* ECMA-262 3rd Edition 11.4.2 */
2460 HRESULT delete_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2461 {
2462 unary_expression_t *expr = (unary_expression_t*)_expr;
2463 VARIANT_BOOL b = VARIANT_FALSE;
2464 exprval_t exprval;
2465 HRESULT hres;
2466
2467 TRACE("\n");
2468
2469 hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
2470 if(FAILED(hres))
2471 return hres;
2472
2473 switch(exprval.type) {
2474 case EXPRVAL_IDREF: {
2475 IDispatchEx *dispex;
2476
2477 hres = IDispatch_QueryInterface(exprval.u.idref.disp, &IID_IDispatchEx, (void**)&dispex);
2478 if(SUCCEEDED(hres)) {
2479 hres = IDispatchEx_DeleteMemberByDispID(dispex, exprval.u.idref.id);
2480 b = VARIANT_TRUE;
2481 IDispatchEx_Release(dispex);
2482 }
2483 break;
2484 }
2485 default:
2486 FIXME("unsupported type %d\n", exprval.type);
2487 hres = E_NOTIMPL;
2488 }
2489
2490 exprval_release(&exprval);
2491 if(FAILED(hres))
2492 return hres;
2493
2494 return return_bool(ret, b);
2495 }
2496
2497 /* ECMA-262 3rd Edition 11.4.2 */
2498 static HRESULT interp_delete(exec_ctx_t *ctx)
2499 {
2500 VARIANT *obj_var, *name_var;
2501 IDispatchEx *dispex;
2502 IDispatch *obj;
2503 BSTR name;
2504 BOOL ret;
2505 HRESULT hres;
2506
2507 TRACE("\n");
2508
2509 name_var = stack_pop(ctx);
2510 obj_var = stack_pop(ctx);
2511
2512 hres = to_object(ctx->parser->script, obj_var, &obj);
2513 VariantClear(obj_var);
2514 if(FAILED(hres)) {
2515 VariantClear(name_var);
2516 return hres;
2517 }
2518
2519 hres = to_string(ctx->parser->script, name_var, &ctx->ei, &name);
2520 VariantClear(name_var);
2521 if(FAILED(hres)) {
2522 IDispatch_Release(obj);
2523 return hres;
2524 }
2525
2526 hres = IDispatch_QueryInterface(obj, &IID_IDispatchEx, (void**)&dispex);
2527 if(SUCCEEDED(hres)) {
2528 hres = IDispatchEx_DeleteMemberByName(dispex, name, make_grfdex(ctx->parser->script, fdexNameCaseSensitive));
2529 ret = TRUE;
2530 IDispatchEx_Release(dispex);
2531 }else {
2532 hres = S_OK;
2533 ret = FALSE;
2534 }
2535
2536 IDispatch_Release(obj);
2537 SysFreeString(name);
2538 if(FAILED(hres))
2539 return hres;
2540
2541 return stack_push_bool(ctx, ret);
2542 }
2543
2544 /* ECMA-262 3rd Edition 11.4.2 */
2545 static HRESULT interp_void(exec_ctx_t *ctx)
2546 {
2547 VARIANT v;
2548
2549 TRACE("\n");
2550
2551 stack_popn(ctx, 1);
2552
2553 V_VT(&v) = VT_EMPTY;
2554 return stack_push(ctx, &v);
2555 }
2556
2557 /* ECMA-262 3rd Edition 11.4.3 */
2558 static HRESULT typeof_exprval(script_ctx_t *ctx, exprval_t *exprval, jsexcept_t *ei, const WCHAR **ret)
2559 {
2560 VARIANT val;
2561 HRESULT hres;
2562
2563 static const WCHAR booleanW[] = {'b','o','o','l','e','a','n',0};
2564 static const WCHAR functionW[] = {'f','u','n','c','t','i','o','n',0};
2565 static const WCHAR numberW[] = {'n','u','m','b','e','r',0};
2566 static const WCHAR objectW[] = {'o','b','j','e','c','t',0};
2567 static const WCHAR stringW[] = {'s','t','r','i','n','g',0};
2568 static const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0};
2569 static const WCHAR unknownW[] = {'u','n','k','n','o','w','n',0};
2570
2571 if(exprval->type == EXPRVAL_INVALID) {
2572 *ret = undefinedW;
2573 return S_OK;
2574 }
2575
2576 hres = exprval_to_value(ctx, exprval, ei, &val);
2577 if(FAILED(hres)) {
2578 if(exprval->type == EXPRVAL_IDREF) {
2579 *ret = unknownW;
2580 return S_OK;
2581 }
2582 return hres;
2583 }
2584
2585 switch(V_VT(&val)) {
2586 case VT_EMPTY:
2587 *ret = undefinedW;
2588 break;
2589 case VT_NULL:
2590 *ret = objectW;
2591 break;
2592 case VT_BOOL:
2593 *ret = booleanW;
2594 break;
2595 case VT_I4:
2596 case VT_R8:
2597 *ret = numberW;
2598 break;
2599 case VT_BSTR:
2600 *ret = stringW;
2601 break;
2602 case VT_DISPATCH: {
2603 jsdisp_t *dispex;
2604
2605 if(V_DISPATCH(&val) && (dispex = iface_to_jsdisp((IUnknown*)V_DISPATCH(&val)))) {
2606 *ret = is_class(dispex, JSCLASS_FUNCTION) ? functionW : objectW;
2607 jsdisp_release(dispex);
2608 }else {
2609 *ret = objectW;
2610 }
2611 break;
2612 }
2613 default:
2614 FIXME("unhandled vt %d\n", V_VT(&val));
2615 hres = E_NOTIMPL;
2616 }
2617
2618 VariantClear(&val);
2619 return hres;
2620 }
2621
2622 HRESULT typeof_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
2623 {
2624 unary_expression_t *expr = (unary_expression_t*)_expr;
2625 const WCHAR *str = NULL;
2626 exprval_t exprval;
2627 HRESULT hres;
2628
2629 TRACE("\n");
2630
2631 hres = expr_eval(ctx, expr->expression, 0, ei, &exprval);
2632 if(FAILED(hres))
2633 return hres;
2634
2635 hres = typeof_exprval(ctx, &exprval, ei, &str);
2636 exprval_release(&exprval);
2637 if(FAILED(hres))
2638 return hres;
2639
2640 ret->type = EXPRVAL_VARIANT;
2641 V_VT(&ret->u.var) = VT_BSTR;
2642 V_BSTR(&ret->u.var) = SysAllocString(str);
2643 if(!V_BSTR(&ret->u.var))
2644 return E_OUTOFMEMORY;
2645
2646 return S_OK;
2647 }
2648
2649 /* ECMA-262 3rd Edition 11.4.7 */
2650 static HRESULT interp_minus(exec_ctx_t *ctx)
2651 {
2652 VARIANT n;
2653 HRESULT hres;
2654
2655 TRACE("\n");
2656
2657 hres = stack_pop_number(ctx, &n);
2658 if(FAILED(hres))
2659 return hres;
2660
2661 return stack_push_number(ctx, -num_val(&n));
2662 }
2663
2664 /* ECMA-262 3rd Edition 11.4.6 */
2665 static HRESULT interp_tonum(exec_ctx_t *ctx)
2666 {
2667 VARIANT *v, num;
2668 HRESULT hres;
2669
2670 TRACE("\n");
2671
2672 v = stack_pop(ctx);
2673 hres = to_number(ctx->parser->script, v, &ctx->ei, &num);
2674 VariantClear(v);
2675 if(FAILED(hres))
2676 return hres;
2677
2678 return stack_push(ctx, &num);
2679 }
2680
2681 /* ECMA-262 3rd Edition 11.3.1 */
2682 static HRESULT interp_postinc(exec_ctx_t *ctx)
2683 {
2684 const int arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
2685 IDispatch *obj;
2686 DISPID id;
2687 VARIANT v;
2688 HRESULT hres;
2689
2690 TRACE("%d\n", arg);
2691
2692 obj = stack_pop_objid(ctx, &id);
2693 if(!obj)
2694 return throw_type_error(ctx->parser->script, &ctx->ei, JS_E_OBJECT_EXPECTED, NULL);
2695
2696 hres = disp_propget(ctx->parser->script, obj, id, &v, &ctx->ei, NULL/*FIXME*/);
2697 if(SUCCEEDED(hres)) {
2698 VARIANT n, inc;
2699
2700 hres = to_number(ctx->parser->script, &v, &ctx->ei, &n);
2701 if(SUCCEEDED(hres)) {
2702 num_set_val(&inc, num_val(&n)+(double)arg);
2703 hres = disp_propput(ctx->parser->script, obj, id, &inc, &ctx->ei, NULL/*FIXME*/);
2704 }
2705 if(FAILED(hres))
2706 VariantClear(&v);
2707 }
2708 IDispatch_Release(obj);
2709 if(FAILED(hres))
2710 return hres;
2711
2712 return stack_push(ctx, &v);
2713 }
2714
2715 /* ECMA-262 3rd Edition 11.4.4, 11.4.5 */
2716 static HRESULT interp_preinc(exec_ctx_t *ctx)
2717 {
2718 const int arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
2719 IDispatch *obj;
2720 DISPID id;
2721 VARIANT v;
2722 HRESULT hres;
2723
2724 TRACE("%d\n", arg);
2725
2726 obj = stack_pop_objid(ctx, &id);
2727 if(!obj)
2728 return throw_type_error(ctx->parser->script, &ctx->ei, JS_E_OBJECT_EXPECTED, NULL);
2729
2730 hres = disp_propget(ctx->parser->script, obj, id, &v, &ctx->ei, NULL/*FIXME*/);
2731 if(SUCCEEDED(hres)) {
2732 VARIANT n;
2733
2734 hres = to_number(ctx->parser->script, &v, &ctx->ei, &n);
2735 VariantClear(&v);
2736 if(SUCCEEDED(hres)) {
2737 num_set_val(&v, num_val(&n)+(double)arg);
2738 hres = disp_propput(ctx->parser->script, obj, id, &v, &ctx->ei, NULL/*FIXME*/);
2739 }
2740 }
2741 IDispatch_Release(obj);
2742 if(FAILED(hres))
2743 return hres;
2744
2745 return stack_push(ctx, &v);
2746 }
2747
2748 /* ECMA-262 3rd Edition 11.9.3 */
2749 static HRESULT equal_values(script_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, BOOL *ret)
2750 {
2751 if(V_VT(lval) == V_VT(rval) || (is_num_vt(V_VT(lval)) && is_num_vt(V_VT(rval))))
2752 return equal2_values(lval, rval, ret);
2753
2754 /* FIXME: NULL disps should be handled in more general way */
2755 if(V_VT(lval) == VT_DISPATCH && !V_DISPATCH(lval)) {
2756 VARIANT v;
2757 V_VT(&v) = VT_NULL;
2758 return equal_values(ctx, &v, rval, ei, ret);
2759 }
2760
2761 if(V_VT(rval) == VT_DISPATCH && !V_DISPATCH(rval)) {
2762 VARIANT v;
2763 V_VT(&v) = VT_NULL;
2764 return equal_values(ctx, lval, &v, ei, ret);
2765 }
2766
2767 if((V_VT(lval) == VT_NULL && V_VT(rval) == VT_EMPTY) ||
2768 (V_VT(lval) == VT_EMPTY && V_VT(rval) == VT_NULL)) {
2769 *ret = TRUE;
2770 return S_OK;
2771 }
2772
2773 if(V_VT(lval) == VT_BSTR && is_num_vt(V_VT(rval))) {
2774 VARIANT v;
2775 HRESULT hres;
2776
2777 hres = to_number(ctx, lval, ei, &v);
2778 if(FAILED(hres))
2779 return hres;
2780
2781 return equal_values(ctx, &v, rval, ei, ret);
2782 }
2783
2784 if(V_VT(rval) == VT_BSTR && is_num_vt(V_VT(lval))) {
2785 VARIANT v;
2786 HRESULT hres;
2787
2788 hres = to_number(ctx, rval, ei, &v);
2789 if(FAILED(hres))
2790 return hres;
2791
2792 return equal_values(ctx, lval, &v, ei, ret);
2793 }
2794
2795 if(V_VT(rval) == VT_BOOL) {
2796 VARIANT v;
2797
2798 V_VT(&v) = VT_I4;
2799 V_I4(&v) = V_BOOL(rval) ? 1 : 0;
2800 return equal_values(ctx, lval, &v, ei, ret);
2801 }
2802
2803 if(V_VT(lval) == VT_BOOL) {
2804 VARIANT v;
2805
2806 V_VT(&v) = VT_I4;
2807 V_I4(&v) = V_BOOL(lval) ? 1 : 0;
2808 return equal_values(ctx, &v, rval, ei, ret);
2809 }
2810
2811
2812 if(V_VT(rval) == VT_DISPATCH && (V_VT(lval) == VT_BSTR || is_num_vt(V_VT(lval)))) {
2813 VARIANT v;
2814 HRESULT hres;
2815
2816 hres = to_primitive(ctx, rval, ei, &v, NO_HINT);
2817 if(FAILED(hres))
2818 return hres;
2819
2820 hres = equal_values(ctx, lval, &v, ei, ret);
2821
2822 VariantClear(&v);
2823 return hres;
2824 }
2825
2826
2827 if(V_VT(lval) == VT_DISPATCH && (V_VT(rval) == VT_BSTR || is_num_vt(V_VT(rval)))) {
2828 VARIANT v;
2829 HRESULT hres;
2830
2831 hres = to_primitive(ctx, lval, ei, &v, NO_HINT);
2832 if(FAILED(hres))
2833 return hres;
2834
2835 hres = equal_values(ctx, &v, rval, ei, ret);
2836
2837 VariantClear(&v);
2838 return hres;
2839 }
2840
2841
2842 *ret = FALSE;
2843 return S_OK;
2844 }
2845
2846 /* ECMA-262 3rd Edition 11.9.1 */
2847 static HRESULT interp_eq(exec_ctx_t *ctx)
2848 {
2849 VARIANT *l, *r;
2850 BOOL b;
2851 HRESULT hres;
2852
2853 r = stack_pop(ctx);
2854 l = stack_pop(ctx);
2855
2856 TRACE("%s == %s\n", debugstr_variant(l), debugstr_variant(r));
2857
2858 hres = equal_values(ctx->parser->script, l, r, &ctx->ei, &b);
2859 VariantClear(l);
2860 VariantClear(r);
2861 if(FAILED(hres))
2862 return hres;
2863
2864 return stack_push_bool(ctx, b);
2865 }
2866
2867 /* ECMA-262 3rd Edition 11.9.2 */
2868 static HRESULT interp_neq(exec_ctx_t *ctx)
2869 {
2870 VARIANT *l, *r;
2871 BOOL b;
2872 HRESULT hres;
2873
2874 r = stack_pop(ctx);
2875 l = stack_pop(ctx);
2876
2877 TRACE("%s != %s\n", debugstr_variant(l), debugstr_variant(r));
2878
2879 hres = equal_values(ctx->parser->script, l, r, &ctx->ei, &b);
2880 VariantClear(l);
2881 VariantClear(r);
2882 if(FAILED(hres))
2883 return hres;
2884
2885 return stack_push_bool(ctx, !b);
2886 }
2887
2888 /* ECMA-262 3rd Edition 11.9.4 */
2889 static HRESULT interp_eq2(exec_ctx_t *ctx)
2890 {
2891 VARIANT *l, *r;
2892 BOOL b;
2893 HRESULT hres;
2894
2895 TRACE("\n");
2896
2897 r = stack_pop(ctx);
2898 l = stack_pop(ctx);
2899
2900 hres = equal2_values(r, l, &b);
2901 VariantClear(l);
2902 VariantClear(r);
2903 if(FAILED(hres))
2904 return hres;
2905
2906 return stack_push_bool(ctx, b);
2907 }
2908
2909 /* ECMA-262 3rd Edition 11.9.5 */
2910 static HRESULT interp_neq2(exec_ctx_t *ctx)
2911 {
2912 VARIANT *l, *r;
2913 BOOL b;
2914 HRESULT hres;
2915
2916 TRACE("\n");
2917
2918 r = stack_pop(ctx);
2919 l = stack_pop(ctx);
2920
2921 hres = equal2_values(r, l, &b);
2922 VariantClear(l);
2923 VariantClear(r);
2924 if(FAILED(hres))
2925 return hres;
2926
2927 return stack_push_bool(ctx, !b);
2928 }
2929
2930 /* ECMA-262 3rd Edition 11.8.5 */
2931 static HRESULT less_eval(script_ctx_t *ctx, VARIANT *lval, VARIANT *rval, BOOL greater, jsexcept_t *ei, BOOL *ret)
2932 {
2933 VARIANT l, r, ln, rn;
2934 HRESULT hres;
2935
2936 hres = to_primitive(ctx, lval, ei, &l, NO_HINT);
2937 if(FAILED(hres))
2938 return hres;
2939
2940 hres = to_primitive(ctx, rval, ei, &r, NO_HINT);
2941 if(FAILED(hres)) {
2942 VariantClear(&l);
2943 return hres;
2944 }
2945
2946 if(V_VT(&l) == VT_BSTR && V_VT(&r) == VT_BSTR) {
2947 *ret = (strcmpW(V_BSTR(&l), V_BSTR(&r)) < 0) ^ greater;
2948 SysFreeString(V_BSTR(&l));
2949 SysFreeString(V_BSTR(&r));
2950 return S_OK;
2951 }
2952
2953 hres = to_number(ctx, &l, ei, &ln);
2954 VariantClear(&l);
2955 if(SUCCEEDED(hres))
2956 hres = to_number(ctx, &r, ei, &rn);
2957 VariantClear(&r);
2958 if(FAILED(hres))
2959 return hres;
2960
2961 if(V_VT(&ln) == VT_I4 && V_VT(&rn) == VT_I4) {
2962 *ret = (V_I4(&ln) < V_I4(&rn)) ^ greater;
2963 }else {
2964 DOUBLE ld = num_val(&ln);
2965 DOUBLE rd = num_val(&rn);
2966
2967 *ret = !isnan(ld) && !isnan(rd) && ((ld < rd) ^ greater);
2968 }
2969
2970 return S_OK;
2971 }
2972
2973 /* ECMA-262 3rd Edition 11.8.1 */
2974 static HRESULT interp_lt(exec_ctx_t *ctx)
2975 {
2976 VARIANT *l, *r;
2977 BOOL b;
2978 HRESULT hres;
2979
2980 r = stack_pop(ctx);
2981 l = stack_pop(ctx);
2982
2983 TRACE("%s < %s\n", debugstr_variant(l), debugstr_variant(r));
2984
2985 hres = less_eval(ctx->parser->script, l, r, FALSE, &ctx->ei, &b);
2986 VariantClear(l);
2987 VariantClear(r);
2988 if(FAILED(hres))
2989 return hres;
2990
2991 return stack_push_bool(ctx, b);
2992 }
2993
2994 /* ECMA-262 3rd Edition 11.8.1 */
2995 static HRESULT interp_lteq(exec_ctx_t *ctx)
2996 {
2997 VARIANT *l, *r;
2998 BOOL b;
2999 HRESULT hres;
3000
3001 r = stack_pop(ctx);
3002 l = stack_pop(ctx);
3003
3004 TRACE("%s <= %s\n", debugstr_variant(l), debugstr_variant(r));
3005
3006 hres = less_eval(ctx->parser->script, r, l, TRUE, &ctx->ei, &b);
3007 VariantClear(l);
3008 VariantClear(r);
3009 if(FAILED(hres))
3010 return hres;
3011
3012 return stack_push_bool(ctx, b);
3013 }
3014
3015 /* ECMA-262 3rd Edition 11.8.2 */
3016 static HRESULT interp_gt(exec_ctx_t *ctx)
3017 {
3018 VARIANT *l, *r;
3019 BOOL b;
3020 HRESULT hres;
3021
3022 r = stack_pop(ctx);
3023 l = stack_pop(ctx);
3024
3025 TRACE("%s > %s\n", debugstr_variant(l), debugstr_variant(r));
3026
3027 hres = less_eval(ctx->parser->script, r, l, FALSE, &ctx->ei, &b);
3028 VariantClear(l);
3029 VariantClear(r);
3030 if(FAILED(hres))
3031 return hres;
3032
3033 return stack_push_bool(ctx, b);
3034 }
3035
3036 /* ECMA-262 3rd Edition 11.8.4 */
3037 static HRESULT interp_gteq(exec_ctx_t *ctx)
3038 {
3039 VARIANT *l, *r;
3040 BOOL b;
3041 HRESULT hres;
3042
3043 r = stack_pop(ctx);
3044 l = stack_pop(ctx);
3045
3046 TRACE("%s >= %s\n", debugstr_variant(l), debugstr_variant(r));
3047
3048 hres = less_eval(ctx->parser->script, l, r, TRUE, &ctx->ei, &b);
3049 VariantClear(l);
3050 VariantClear(r);
3051 if(FAILED(hres))
3052 return hres;
3053
3054 return stack_push_bool(ctx, b);
3055 }
3056
3057 /* ECMA-262 3rd Edition 11.4.8 */
3058 static HRESULT interp_bneg(exec_ctx_t *ctx)
3059 {
3060 VARIANT *v, r;
3061 INT i;
3062 HRESULT hres;
3063
3064 TRACE("\n");
3065
3066 v = stack_pop(ctx);
3067 hres = to_int32(ctx->parser->script, v, &ctx->ei, &i);
3068 VariantClear(v);
3069 if(FAILED(hres))
3070 return hres;
3071
3072 V_VT(&r) = VT_I4;
3073 V_I4(&r) = ~i;
3074 return stack_push(ctx, &r);
3075 }
3076
3077 /* ECMA-262 3rd Edition 11.4.9 */
3078 static HRESULT interp_neg(exec_ctx_t *ctx)
3079 {
3080 VARIANT *v;
3081 VARIANT_BOOL b;
3082 HRESULT hres;
3083
3084 TRACE("\n");
3085
3086 v = stack_pop(ctx);
3087 hres = to_boolean(v, &b);
3088 VariantClear(v);
3089 if(FAILED(hres))
3090 return hres;
3091
3092 return stack_push_bool(ctx, !b);
3093 }
3094
3095 /* ECMA-262 3rd Edition 11.7.1 */
3096 static HRESULT lshift_eval(script_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
3097 {
3098 DWORD ri;
3099 INT li;
3100 HRESULT hres;
3101
3102 hres = to_int32(ctx, lval, ei, &li);
3103 if(FAILED(hres))
3104 return hres;
3105
3106 hres = to_uint32(ctx, rval, ei, &ri);
3107 if(FAILED(hres))
3108 return hres;
3109
3110 V_VT(retv) = VT_I4;
3111 V_I4(retv) = li << (ri&0x1f);
3112 return S_OK;
3113 }
3114
3115 /* ECMA-262 3rd Edition 11.7.1 */
3116 HRESULT left_shift_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3117 {
3118 binary_expression_t *expr = (binary_expression_t*)_expr;
3119
3120 TRACE("\n");
3121
3122 return binary_expr_eval(ctx, expr, lshift_eval, ei, ret);
3123 }
3124
3125 /* ECMA-262 3rd Edition 11.7.2 */
3126 static HRESULT interp_rshift(exec_ctx_t *ctx)
3127 {
3128 DWORD r;
3129 INT l;
3130 HRESULT hres;
3131
3132 hres = stack_pop_uint(ctx, &r);
3133 if(FAILED(hres))
3134 return hres;
3135
3136 hres = stack_pop_int(ctx, &l);
3137 if(FAILED(hres))
3138 return hres;
3139
3140 return stack_push_int(ctx, l >> (r&0x1f));
3141 }
3142
3143 /* ECMA-262 3rd Edition 11.7.3 */
3144 static HRESULT rshift2_eval(script_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
3145 {
3146 DWORD li, ri;
3147 HRESULT hres;
3148
3149 hres = to_uint32(ctx, lval, ei, &li);
3150 if(FAILED(hres))
3151 return hres;
3152
3153 hres = to_uint32(ctx, rval, ei, &ri);
3154 if(FAILED(hres))
3155 return hres;
3156
3157 V_VT(retv) = VT_I4;
3158 V_I4(retv) = li >> (ri&0x1f);
3159 return S_OK;
3160 }
3161
3162 /* ECMA-262 3rd Edition 11.7.3 */
3163 HRESULT right2_shift_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3164 {
3165 binary_expression_t *expr = (binary_expression_t*)_expr;
3166
3167 TRACE("\n");
3168
3169 return binary_expr_eval(ctx, expr, rshift2_eval, ei, ret);
3170 }
3171
3172 /* ECMA-262 3rd Edition 11.13.1 */
3173 static HRESULT interp_assign(exec_ctx_t *ctx)
3174 {
3175 IDispatch *disp;
3176 DISPID id;
3177 VARIANT *v;
3178 HRESULT hres;
3179
3180 TRACE("\n");
3181
3182 v = stack_pop(ctx);
3183 disp = stack_pop_objid(ctx, &id);
3184
3185 if(!disp)
3186 return throw_reference_error(ctx->parser->script, &ctx->ei, JS_E_ILLEGAL_ASSIGN, NULL);
3187
3188 hres = disp_propput(ctx->parser->script, disp, id, v, &ctx->ei, NULL/*FIXME*/);
3189 IDispatch_Release(disp);
3190 if(FAILED(hres)) {
3191 VariantClear(v);
3192 return hres;
3193 }
3194
3195 return stack_push(ctx, v);
3196 }
3197
3198 /* ECMA-262 3rd Edition 11.13.2 */
3199 HRESULT assign_lshift_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3200 {
3201 binary_expression_t *expr = (binary_expression_t*)_expr;
3202
3203 TRACE("\n");
3204
3205 return assign_oper_eval(ctx, expr->expression1, expr->expression2, lshift_eval, ei, ret);
3206 }
3207
3208 /* ECMA-262 3rd Edition 11.13.2 */
3209 HRESULT assign_rrshift_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3210 {
3211 binary_expression_t *expr = (binary_expression_t*)_expr;
3212
3213 TRACE("\n");
3214
3215 return assign_oper_eval(ctx, expr->expression1, expr->expression2, rshift2_eval, ei, ret);
3216 }
3217
3218 static HRESULT interp_undefined(exec_ctx_t *ctx)
3219 {
3220 VARIANT v;
3221
3222 TRACE("\n");
3223
3224 V_VT(&v) = VT_EMPTY;
3225 return stack_push(ctx, &v);
3226 }
3227
3228 static HRESULT interp_jmp(exec_ctx_t *ctx)
3229 {
3230 const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
3231
3232 TRACE("\n");
3233
3234 ctx->ip = arg;
3235 return S_OK;
3236 }
3237
3238 static HRESULT interp_pop(exec_ctx_t *ctx)
3239 {
3240 TRACE("\n");
3241
3242 stack_popn(ctx, 1);
3243 return S_OK;
3244 }
3245
3246 static HRESULT interp_ret(exec_ctx_t *ctx)
3247 {
3248 TRACE("\n");
3249
3250 ctx->ip = -1;
3251 return S_OK;
3252 }
3253
3254 static HRESULT interp_tree(exec_ctx_t *ctx)
3255 {
3256 instr_t *instr = ctx->parser->code->instrs+ctx->ip;
3257 exprval_t val;
3258 VARIANT v;
3259 HRESULT hres;
3260
3261 TRACE("\n");
3262
3263 hres = expr_eval(ctx->parser->script, instr->arg1.expr, 0, &ctx->ei, &val);
3264 if(FAILED(hres))
3265 return hres;
3266
3267 hres = exprval_to_value(ctx->parser->script, &val, &ctx->ei, &v);
3268 exprval_release(&val);
3269 if(FAILED(hres))
3270 return hres;
3271
3272 return stack_push(ctx, &v);
3273 }
3274
3275 typedef HRESULT (*op_func_t)(exec_ctx_t*);
3276
3277 static const op_func_t op_funcs[] = {
3278 #define X(x,a,b,c) interp_##x,
3279 OP_LIST
3280 #undef X
3281 };
3282
3283 static const unsigned op_move[] = {
3284 #define X(a,x,b,c) x,
3285 OP_LIST
3286 #undef X
3287 };
3288
3289 static HRESULT interp_expression_eval(script_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3290 {
3291 exec_ctx_t *exec_ctx = ctx->exec_ctx;
3292 unsigned prev_ip, prev_top;
3293 jsop_t op;
3294 HRESULT hres = S_OK;
3295
3296 TRACE("\n");
3297
3298 prev_top = exec_ctx->top;
3299 prev_ip = exec_ctx->ip;
3300 exec_ctx->ip = expr->instr_off;
3301
3302 while(exec_ctx->ip != -1) {
3303 op = exec_ctx->parser->code->instrs[exec_ctx->ip].op;
3304 hres = op_funcs[op](exec_ctx);
3305 if(FAILED(hres))
3306 break;
3307 exec_ctx->ip += op_move[op];
3308 }
3309
3310 exec_ctx->ip = prev_ip;
3311
3312 if(FAILED(hres)) {
3313 stack_popn(exec_ctx, exec_ctx->top-prev_top);
3314 *ei = exec_ctx->ei;
3315 memset(&exec_ctx->ei, 0, sizeof(exec_ctx->ei));
3316 return hres;
3317 }
3318
3319 assert(exec_ctx->top == prev_top+1 || ((flags&EXPR_NOVAL) && exec_ctx->top == prev_top));
3320
3321 ret->type = EXPRVAL_VARIANT;
3322 if(exec_ctx->top == prev_top)
3323 V_VT(&ret->u.var) = VT_EMPTY;
3324 else
3325 ret->u.var = *stack_pop(exec_ctx);
3326 return S_OK;
3327 }
3328
3329 HRESULT compiled_expression_eval(script_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
3330 {
3331 HRESULT hres;
3332
3333 TRACE("\n");
3334
3335 hres = compile_subscript(ctx->exec_ctx->parser, expr, !(flags & EXPR_NOVAL), &expr->instr_off);
3336 if(FAILED(hres))
3337 return hres;
3338
3339 if(expr->eval == compiled_expression_eval)
3340 expr->eval = interp_expression_eval;
3341
3342 return expr->eval(ctx, expr, flags, ei, ret);
3343 }
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