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 #ifdef __REACTOS__
20 #include <wine/config.h>
21 #include <wine/port.h>
22 #endif
23
24 #include <math.h>
25 #include <assert.h>
26
27 #include "jscript.h"
28 #include "engine.h"
29
30 #include "wine/debug.h"
31
32 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
33 WINE_DECLARE_DEBUG_CHANNEL(heap);
34
debugstr_jsval(const jsval_t v)35 const char *debugstr_jsval(const jsval_t v)
36 {
37 switch(jsval_type(v)) {
38 case JSV_UNDEFINED:
39 return "undefined";
40 case JSV_NULL:
41 return "null";
42 case JSV_OBJECT:
43 return wine_dbg_sprintf("obj(%p)", get_object(v));
44 case JSV_STRING:
45 return wine_dbg_sprintf("str(%s)", debugstr_jsstr(get_string(v)));
46 case JSV_NUMBER:
47 return wine_dbg_sprintf("%lf", get_number(v));
48 case JSV_BOOL:
49 return get_bool(v) ? "true" : "false";
50 case JSV_VARIANT:
51 return debugstr_variant(get_variant(v));
52 }
53
54 assert(0);
55 return NULL;
56 }
57
is_finite(double n)58 BOOL is_finite(double n)
59 {
60 return !isnan(n) && !isinf(n);
61 }
62
63 #define MIN_BLOCK_SIZE 128
64 #define ARENA_FREE_FILLER 0xaa
65
block_size(DWORD block)66 static inline DWORD block_size(DWORD block)
67 {
68 return MIN_BLOCK_SIZE << block;
69 }
70
heap_pool_init(heap_pool_t * heap)71 void heap_pool_init(heap_pool_t *heap)
72 {
73 memset(heap, 0, sizeof(*heap));
74 list_init(&heap->custom_blocks);
75 }
76
heap_pool_alloc(heap_pool_t * heap,DWORD size)77 void *heap_pool_alloc(heap_pool_t *heap, DWORD size)
78 {
79 struct list *list;
80 void *tmp;
81
82 if(!heap->block_cnt) {
83 if(!heap->blocks) {
84 heap->blocks = heap_alloc(sizeof(void*));
85 if(!heap->blocks)
86 return NULL;
87 }
88
89 tmp = heap_alloc(block_size(0));
90 if(!tmp)
91 return NULL;
92
93 heap->blocks[0] = tmp;
94 heap->block_cnt = 1;
95 }
96
97 if(heap->offset + size <= block_size(heap->last_block)) {
98 tmp = ((BYTE*)heap->blocks[heap->last_block])+heap->offset;
99 heap->offset += size;
100 return tmp;
101 }
102
103 if(size <= block_size(heap->last_block+1)) {
104 if(heap->last_block+1 == heap->block_cnt) {
105 tmp = heap_realloc(heap->blocks, (heap->block_cnt+1)*sizeof(void*));
106 if(!tmp)
107 return NULL;
108
109 heap->blocks = tmp;
110 heap->blocks[heap->block_cnt] = heap_alloc(block_size(heap->block_cnt));
111 if(!heap->blocks[heap->block_cnt])
112 return NULL;
113
114 heap->block_cnt++;
115 }
116
117 heap->last_block++;
118 heap->offset = size;
119 return heap->blocks[heap->last_block];
120 }
121
122 list = heap_alloc(size + sizeof(struct list));
123 if(!list)
124 return NULL;
125
126 list_add_head(&heap->custom_blocks, list);
127 return list+1;
128 }
129
heap_pool_grow(heap_pool_t * heap,void * mem,DWORD size,DWORD inc)130 void *heap_pool_grow(heap_pool_t *heap, void *mem, DWORD size, DWORD inc)
131 {
132 void *ret;
133
134 if(mem == (BYTE*)heap->blocks[heap->last_block] + heap->offset-size
135 && heap->offset+inc < block_size(heap->last_block)) {
136 heap->offset += inc;
137 return mem;
138 }
139
140 ret = heap_pool_alloc(heap, size+inc);
141 if(ret) /* FIXME: avoid copying for custom blocks */
142 memcpy(ret, mem, size);
143 return ret;
144 }
145
heap_pool_clear(heap_pool_t * heap)146 void heap_pool_clear(heap_pool_t *heap)
147 {
148 struct list *tmp;
149
150 if(!heap)
151 return;
152
153 while((tmp = list_head(&heap->custom_blocks))) {
154 list_remove(tmp);
155 heap_free(tmp);
156 }
157
158 if(WARN_ON(heap)) {
159 DWORD i;
160
161 for(i=0; i < heap->block_cnt; i++)
162 memset(heap->blocks[i], ARENA_FREE_FILLER, block_size(i));
163 }
164
165 heap->last_block = heap->offset = 0;
166 heap->mark = FALSE;
167 }
168
heap_pool_free(heap_pool_t * heap)169 void heap_pool_free(heap_pool_t *heap)
170 {
171 DWORD i;
172
173 heap_pool_clear(heap);
174
175 for(i=0; i < heap->block_cnt; i++)
176 heap_free(heap->blocks[i]);
177 heap_free(heap->blocks);
178
179 heap_pool_init(heap);
180 }
181
heap_pool_mark(heap_pool_t * heap)182 heap_pool_t *heap_pool_mark(heap_pool_t *heap)
183 {
184 if(heap->mark)
185 return NULL;
186
187 heap->mark = TRUE;
188 return heap;
189 }
190
jsval_release(jsval_t val)191 void jsval_release(jsval_t val)
192 {
193 switch(jsval_type(val)) {
194 case JSV_OBJECT:
195 if(get_object(val))
196 IDispatch_Release(get_object(val));
197 break;
198 case JSV_STRING:
199 jsstr_release(get_string(val));
200 break;
201 case JSV_VARIANT:
202 VariantClear(get_variant(val));
203 heap_free(get_variant(val));
204 break;
205 default:
206 break;
207 }
208 }
209
jsval_variant(jsval_t * val,VARIANT * var)210 static HRESULT jsval_variant(jsval_t *val, VARIANT *var)
211 {
212 VARIANT *v;
213 HRESULT hres;
214
215 __JSVAL_TYPE(*val) = JSV_VARIANT;
216 __JSVAL_VAR(*val) = v = heap_alloc(sizeof(VARIANT));
217 if(!v) {
218 *val = jsval_undefined();
219 return E_OUTOFMEMORY;
220 }
221
222 V_VT(v) = VT_EMPTY;
223 hres = VariantCopy(v, var);
224 if(FAILED(hres)) {
225 *val = jsval_undefined();
226 heap_free(v);
227 }
228 return hres;
229 }
230
jsval_copy(jsval_t v,jsval_t * r)231 HRESULT jsval_copy(jsval_t v, jsval_t *r)
232 {
233 switch(jsval_type(v)) {
234 case JSV_UNDEFINED:
235 case JSV_NULL:
236 case JSV_NUMBER:
237 case JSV_BOOL:
238 *r = v;
239 return S_OK;
240 case JSV_OBJECT:
241 if(get_object(v))
242 IDispatch_AddRef(get_object(v));
243 *r = v;
244 return S_OK;
245 case JSV_STRING: {
246 jsstr_addref(get_string(v));
247 *r = v;
248 return S_OK;
249 }
250 case JSV_VARIANT:
251 return jsval_variant(r, get_variant(v));
252 }
253
254 assert(0);
255 return E_FAIL;
256 }
257
variant_to_jsval(VARIANT * var,jsval_t * r)258 HRESULT variant_to_jsval(VARIANT *var, jsval_t *r)
259 {
260 if(V_VT(var) == (VT_VARIANT|VT_BYREF))
261 var = V_VARIANTREF(var);
262
263 switch(V_VT(var)) {
264 case VT_EMPTY:
265 *r = jsval_undefined();
266 return S_OK;
267 case VT_NULL:
268 *r = jsval_null();
269 return S_OK;
270 case VT_BOOL:
271 *r = jsval_bool(V_BOOL(var));
272 return S_OK;
273 case VT_I4:
274 *r = jsval_number(V_I4(var));
275 return S_OK;
276 case VT_R8:
277 *r = jsval_number(V_R8(var));
278 return S_OK;
279 case VT_BSTR: {
280 jsstr_t *str;
281
282 if(V_BSTR(var)) {
283 str = jsstr_alloc_len(V_BSTR(var), SysStringLen(V_BSTR(var)));
284 if(!str)
285 return E_OUTOFMEMORY;
286 }else {
287 str = jsstr_null_bstr();
288 }
289
290 *r = jsval_string(str);
291 return S_OK;
292 }
293 case VT_DISPATCH: {
294 if(V_DISPATCH(var))
295 IDispatch_AddRef(V_DISPATCH(var));
296 *r = jsval_disp(V_DISPATCH(var));
297 return S_OK;
298 }
299 case VT_I1:
300 *r = jsval_number(V_I1(var));
301 return S_OK;
302 case VT_UI1:
303 *r = jsval_number(V_UI1(var));
304 return S_OK;
305 case VT_I2:
306 *r = jsval_number(V_I2(var));
307 return S_OK;
308 case VT_UI2:
309 *r = jsval_number(V_UI2(var));
310 return S_OK;
311 case VT_INT:
312 *r = jsval_number(V_INT(var));
313 return S_OK;
314 case VT_UI4:
315 *r = jsval_number(V_UI4(var));
316 return S_OK;
317 case VT_UI8:
318 /*
319 * Native doesn't support VT_UI8 here, but it's needed for IE9+ APIs
320 * (native IE9 doesn't use jscript.dll for JavaScript).
321 */
322 *r = jsval_number(V_UI8(var));
323 return S_OK;
324 case VT_R4:
325 *r = jsval_number(V_R4(var));
326 return S_OK;
327 case VT_UNKNOWN:
328 if(V_UNKNOWN(var)) {
329 IDispatch *disp;
330 HRESULT hres;
331
332 hres = IUnknown_QueryInterface(V_UNKNOWN(var), &IID_IDispatch, (void**)&disp);
333 if(SUCCEEDED(hres)) {
334 *r = jsval_disp(disp);
335 return S_OK;
336 }
337 }else {
338 *r = jsval_disp(NULL);
339 return S_OK;
340 }
341 /* fall through */
342 default:
343 return jsval_variant(r, var);
344 }
345 }
346
jsval_to_variant(jsval_t val,VARIANT * retv)347 HRESULT jsval_to_variant(jsval_t val, VARIANT *retv)
348 {
349 switch(jsval_type(val)) {
350 case JSV_UNDEFINED:
351 V_VT(retv) = VT_EMPTY;
352 return S_OK;
353 case JSV_NULL:
354 V_VT(retv) = VT_NULL;
355 return S_OK;
356 case JSV_OBJECT:
357 V_VT(retv) = VT_DISPATCH;
358 if(get_object(val))
359 IDispatch_AddRef(get_object(val));
360 V_DISPATCH(retv) = get_object(val);
361 return S_OK;
362 case JSV_STRING: {
363 jsstr_t *str = get_string(val);
364
365 V_VT(retv) = VT_BSTR;
366 if(is_null_bstr(str)) {
367 V_BSTR(retv) = NULL;
368 }else {
369 V_BSTR(retv) = SysAllocStringLen(NULL, jsstr_length(str));
370 if(V_BSTR(retv))
371 jsstr_flush(str, V_BSTR(retv));
372 else
373 return E_OUTOFMEMORY;
374 }
375 return S_OK;
376 }
377 case JSV_NUMBER: {
378 double n = get_number(val);
379
380 if(is_int32(n)) {
381 V_VT(retv) = VT_I4;
382 V_I4(retv) = n;
383 }else {
384 V_VT(retv) = VT_R8;
385 V_R8(retv) = n;
386 }
387
388 return S_OK;
389 }
390 case JSV_BOOL:
391 V_VT(retv) = VT_BOOL;
392 V_BOOL(retv) = get_bool(val) ? VARIANT_TRUE : VARIANT_FALSE;
393 return S_OK;
394 case JSV_VARIANT:
395 V_VT(retv) = VT_EMPTY;
396 return VariantCopy(retv, get_variant(val));
397 }
398
399 assert(0);
400 return E_FAIL;
401 }
402
403 /* ECMA-262 3rd Edition 9.1 */
to_primitive(script_ctx_t * ctx,jsval_t val,jsval_t * ret,hint_t hint)404 HRESULT to_primitive(script_ctx_t *ctx, jsval_t val, jsval_t *ret, hint_t hint)
405 {
406 if(is_object_instance(val)) {
407 jsdisp_t *jsdisp;
408 jsval_t prim;
409 DISPID id;
410 HRESULT hres;
411
412 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
413 static const WCHAR valueOfW[] = {'v','a','l','u','e','O','f',0};
414
415 if(!get_object(val)) {
416 *ret = jsval_null();
417 return S_OK;
418 }
419
420 jsdisp = iface_to_jsdisp(get_object(val));
421 if(!jsdisp)
422 return disp_propget(ctx, get_object(val), DISPID_VALUE, ret);
423
424 if(hint == NO_HINT)
425 hint = is_class(jsdisp, JSCLASS_DATE) ? HINT_STRING : HINT_NUMBER;
426
427 /* Native implementation doesn't throw TypeErrors, returns strange values */
428
429 hres = jsdisp_get_id(jsdisp, hint == HINT_STRING ? toStringW : valueOfW, 0, &id);
430 if(SUCCEEDED(hres)) {
431 hres = jsdisp_call(jsdisp, id, DISPATCH_METHOD, 0, NULL, &prim);
432 if(FAILED(hres)) {
433 WARN("call error - forwarding exception\n");
434 jsdisp_release(jsdisp);
435 return hres;
436 }else if(!is_object_instance(prim)) {
437 jsdisp_release(jsdisp);
438 *ret = prim;
439 return S_OK;
440 }else {
441 IDispatch_Release(get_object(prim));
442 }
443 }
444
445 hres = jsdisp_get_id(jsdisp, hint == HINT_STRING ? valueOfW : toStringW, 0, &id);
446 if(SUCCEEDED(hres)) {
447 hres = jsdisp_call(jsdisp, id, DISPATCH_METHOD, 0, NULL, &prim);
448 if(FAILED(hres)) {
449 WARN("call error - forwarding exception\n");
450 jsdisp_release(jsdisp);
451 return hres;
452 }else if(!is_object_instance(prim)) {
453 jsdisp_release(jsdisp);
454 *ret = prim;
455 return S_OK;
456 }else {
457 IDispatch_Release(get_object(prim));
458 }
459 }
460
461 jsdisp_release(jsdisp);
462
463 WARN("failed\n");
464 return throw_type_error(ctx, JS_E_TO_PRIMITIVE, NULL);
465 }
466
467 return jsval_copy(val, ret);
468
469 }
470
471 /* ECMA-262 3rd Edition 9.2 */
to_boolean(jsval_t val,BOOL * ret)472 HRESULT to_boolean(jsval_t val, BOOL *ret)
473 {
474 switch(jsval_type(val)) {
475 case JSV_UNDEFINED:
476 case JSV_NULL:
477 *ret = FALSE;
478 return S_OK;
479 case JSV_OBJECT:
480 *ret = get_object(val) != NULL;
481 return S_OK;
482 case JSV_STRING:
483 *ret = jsstr_length(get_string(val)) != 0;
484 return S_OK;
485 case JSV_NUMBER:
486 *ret = !isnan(get_number(val)) && get_number(val);
487 return S_OK;
488 case JSV_BOOL:
489 *ret = get_bool(val);
490 return S_OK;
491 case JSV_VARIANT:
492 FIXME("unimplemented for variant %s\n", debugstr_variant(get_variant(val)));
493 return E_NOTIMPL;
494 }
495
496 assert(0);
497 return E_FAIL;
498 }
499
hex_to_int(WCHAR c)500 static int hex_to_int(WCHAR c)
501 {
502 if('0' <= c && c <= '9')
503 return c-'0';
504
505 if('a' <= c && c <= 'f')
506 return c-'a'+10;
507
508 if('A' <= c && c <= 'F')
509 return c-'A'+10;
510
511 return -1;
512 }
513
514 /* ECMA-262 3rd Edition 9.3.1 */
str_to_number(jsstr_t * str,double * ret)515 static HRESULT str_to_number(jsstr_t *str, double *ret)
516 {
517 const WCHAR *ptr;
518 BOOL neg = FALSE;
519 DOUBLE d = 0.0;
520
521 static const WCHAR infinityW[] = {'I','n','f','i','n','i','t','y'};
522
523 ptr = jsstr_flatten(str);
524 if(!ptr)
525 return E_OUTOFMEMORY;
526
527 while(iswspace(*ptr))
528 ptr++;
529
530 if(*ptr == '-') {
531 neg = TRUE;
532 ptr++;
533 }else if(*ptr == '+') {
534 ptr++;
535 }
536
537 if(!wcsncmp(ptr, infinityW, ARRAY_SIZE(infinityW))) {
538 ptr += ARRAY_SIZE(infinityW);
539 while(*ptr && iswspace(*ptr))
540 ptr++;
541
542 if(*ptr)
543 *ret = NAN;
544 else
545 *ret = neg ? -INFINITY : INFINITY;
546 return S_OK;
547 }
548
549 if(*ptr == '0' && ptr[1] == 'x') {
550 DWORD l = 0;
551
552 ptr += 2;
553 while((l = hex_to_int(*ptr)) != -1) {
554 d = d*16 + l;
555 ptr++;
556 }
557
558 *ret = d;
559 return S_OK;
560 }
561
562 while(iswdigit(*ptr))
563 d = d*10 + (*ptr++ - '0');
564
565 if(*ptr == 'e' || *ptr == 'E') {
566 BOOL eneg = FALSE;
567 LONG l = 0;
568
569 ptr++;
570 if(*ptr == '-') {
571 ptr++;
572 eneg = TRUE;
573 }else if(*ptr == '+') {
574 ptr++;
575 }
576
577 while(iswdigit(*ptr))
578 l = l*10 + (*ptr++ - '0');
579 if(eneg)
580 l = -l;
581
582 d *= pow(10, l);
583 }else if(*ptr == '.') {
584 DOUBLE dec = 0.1;
585
586 ptr++;
587 while(iswdigit(*ptr)) {
588 d += dec * (*ptr++ - '0');
589 dec *= 0.1;
590 }
591 }
592
593 while(iswspace(*ptr))
594 ptr++;
595
596 if(*ptr) {
597 *ret = NAN;
598 return S_OK;
599 }
600
601 if(neg)
602 d = -d;
603
604 *ret = d;
605 return S_OK;
606 }
607
608 /* ECMA-262 3rd Edition 9.3 */
to_number(script_ctx_t * ctx,jsval_t val,double * ret)609 HRESULT to_number(script_ctx_t *ctx, jsval_t val, double *ret)
610 {
611 switch(jsval_type(val)) {
612 case JSV_UNDEFINED:
613 *ret = NAN;
614 return S_OK;
615 case JSV_NULL:
616 *ret = 0;
617 return S_OK;
618 case JSV_NUMBER:
619 *ret = get_number(val);
620 return S_OK;
621 case JSV_STRING:
622 return str_to_number(get_string(val), ret);
623 case JSV_OBJECT: {
624 jsval_t prim;
625 HRESULT hres;
626
627 hres = to_primitive(ctx, val, &prim, HINT_NUMBER);
628 if(FAILED(hres))
629 return hres;
630
631 hres = to_number(ctx, prim, ret);
632 jsval_release(prim);
633 return hres;
634 }
635 case JSV_BOOL:
636 *ret = get_bool(val) ? 1 : 0;
637 return S_OK;
638 case JSV_VARIANT:
639 FIXME("unimplemented for variant %s\n", debugstr_variant(get_variant(val)));
640 return E_NOTIMPL;
641 };
642
643 assert(0);
644 return E_FAIL;
645 }
646
647 /* ECMA-262 3rd Edition 9.4 */
to_integer(script_ctx_t * ctx,jsval_t v,double * ret)648 HRESULT to_integer(script_ctx_t *ctx, jsval_t v, double *ret)
649 {
650 double n;
651 HRESULT hres;
652
653 hres = to_number(ctx, v, &n);
654 if(FAILED(hres))
655 return hres;
656
657 if(isnan(n))
658 *ret = 0;
659 else
660 *ret = n >= 0.0 ? floor(n) : -floor(-n);
661 return S_OK;
662 }
663
664 /* ECMA-262 3rd Edition 9.5 */
to_int32(script_ctx_t * ctx,jsval_t v,INT * ret)665 HRESULT to_int32(script_ctx_t *ctx, jsval_t v, INT *ret)
666 {
667 double n;
668 HRESULT hres;
669
670 const double p32 = (double)0xffffffff + 1;
671
672 hres = to_number(ctx, v, &n);
673 if(FAILED(hres))
674 return hres;
675
676 if(is_finite(n))
677 n = n > 0 ? fmod(n, p32) : -fmod(-n, p32);
678 else
679 n = 0;
680
681 *ret = (UINT32)n;
682 return S_OK;
683 }
684
685 /* ECMA-262 3rd Edition 9.6 */
to_uint32(script_ctx_t * ctx,jsval_t val,UINT32 * ret)686 HRESULT to_uint32(script_ctx_t *ctx, jsval_t val, UINT32 *ret)
687 {
688 INT32 n;
689 HRESULT hres;
690
691 hres = to_int32(ctx, val, &n);
692 if(SUCCEEDED(hres))
693 *ret = n;
694 return hres;
695 }
696
int_to_string(int i)697 static jsstr_t *int_to_string(int i)
698 {
699 WCHAR buf[12], *p;
700 BOOL neg = FALSE;
701
702 if(!i) {
703 static const WCHAR zeroW[] = {'0',0};
704 return jsstr_alloc(zeroW);
705 }
706
707 if(i < 0) {
708 neg = TRUE;
709 i = -i;
710 }
711
712 p = buf + ARRAY_SIZE(buf)-1;
713 *p-- = 0;
714 while(i) {
715 *p-- = i%10 + '0';
716 i /= 10;
717 }
718
719 if(neg)
720 *p = '-';
721 else
722 p++;
723
724 return jsstr_alloc(p);
725 }
726
double_to_string(double n,jsstr_t ** str)727 HRESULT double_to_string(double n, jsstr_t **str)
728 {
729 static const WCHAR InfinityW[] = {'-','I','n','f','i','n','i','t','y',0};
730
731 if(isnan(n)) {
732 *str = jsstr_nan();
733 }else if(isinf(n)) {
734 *str = jsstr_alloc(n<0 ? InfinityW : InfinityW+1);
735 }else if(is_int32(n)) {
736 *str = int_to_string(n);
737 }else {
738 VARIANT strv, v;
739 HRESULT hres;
740
741 /* FIXME: Don't use VariantChangeTypeEx */
742 V_VT(&v) = VT_R8;
743 V_R8(&v) = n;
744 V_VT(&strv) = VT_EMPTY;
745 hres = VariantChangeTypeEx(&strv, &v, MAKELCID(MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),SORT_DEFAULT), 0, VT_BSTR);
746 if(FAILED(hres))
747 return hres;
748
749 *str = jsstr_alloc(V_BSTR(&strv));
750 SysFreeString(V_BSTR(&strv));
751 }
752
753 return *str ? S_OK : E_OUTOFMEMORY;
754 }
755
756 /* ECMA-262 3rd Edition 9.8 */
to_string(script_ctx_t * ctx,jsval_t val,jsstr_t ** str)757 HRESULT to_string(script_ctx_t *ctx, jsval_t val, jsstr_t **str)
758 {
759 static const WCHAR nullW[] = {'n','u','l','l',0};
760 static const WCHAR trueW[] = {'t','r','u','e',0};
761 static const WCHAR falseW[] = {'f','a','l','s','e',0};
762
763 switch(jsval_type(val)) {
764 case JSV_UNDEFINED:
765 *str = jsstr_undefined();
766 return S_OK;
767 case JSV_NULL:
768 *str = jsstr_alloc(nullW);
769 break;
770 case JSV_NUMBER:
771 return double_to_string(get_number(val), str);
772 case JSV_STRING:
773 *str = jsstr_addref(get_string(val));
774 break;
775 case JSV_OBJECT: {
776 jsval_t prim;
777 HRESULT hres;
778
779 hres = to_primitive(ctx, val, &prim, HINT_STRING);
780 if(FAILED(hres))
781 return hres;
782
783 hres = to_string(ctx, prim, str);
784 jsval_release(prim);
785 return hres;
786 }
787 case JSV_BOOL:
788 *str = jsstr_alloc(get_bool(val) ? trueW : falseW);
789 break;
790 default:
791 FIXME("unsupported %s\n", debugstr_jsval(val));
792 return E_NOTIMPL;
793 }
794
795 return *str ? S_OK : E_OUTOFMEMORY;
796 }
797
to_flat_string(script_ctx_t * ctx,jsval_t val,jsstr_t ** str,const WCHAR ** ret_str)798 HRESULT to_flat_string(script_ctx_t *ctx, jsval_t val, jsstr_t **str, const WCHAR **ret_str)
799 {
800 HRESULT hres;
801
802 hres = to_string(ctx, val, str);
803 if(FAILED(hres))
804 return hres;
805
806 *ret_str = jsstr_flatten(*str);
807 if(!*ret_str) {
808 jsstr_release(*str);
809 return E_OUTOFMEMORY;
810 }
811
812 return S_OK;
813 }
814
815 /* ECMA-262 3rd Edition 9.9 */
to_object(script_ctx_t * ctx,jsval_t val,IDispatch ** disp)816 HRESULT to_object(script_ctx_t *ctx, jsval_t val, IDispatch **disp)
817 {
818 jsdisp_t *dispex;
819 HRESULT hres;
820
821 switch(jsval_type(val)) {
822 case JSV_STRING:
823 hres = create_string(ctx, get_string(val), &dispex);
824 if(FAILED(hres))
825 return hres;
826
827 *disp = to_disp(dispex);
828 break;
829 case JSV_NUMBER:
830 hres = create_number(ctx, get_number(val), &dispex);
831 if(FAILED(hres))
832 return hres;
833
834 *disp = to_disp(dispex);
835 break;
836 case JSV_OBJECT:
837 if(get_object(val)) {
838 *disp = get_object(val);
839 IDispatch_AddRef(*disp);
840 }else {
841 jsdisp_t *obj;
842
843 hres = create_object(ctx, NULL, &obj);
844 if(FAILED(hres))
845 return hres;
846
847 *disp = to_disp(obj);
848 }
849 break;
850 case JSV_BOOL:
851 hres = create_bool(ctx, get_bool(val), &dispex);
852 if(FAILED(hres))
853 return hres;
854
855 *disp = to_disp(dispex);
856 break;
857 case JSV_UNDEFINED:
858 case JSV_NULL:
859 WARN("object expected\n");
860 return throw_type_error(ctx, JS_E_OBJECT_EXPECTED, NULL);
861 case JSV_VARIANT:
862 switch(V_VT(get_variant(val))) {
863 case VT_ARRAY|VT_VARIANT:
864 hres = create_vbarray(ctx, V_ARRAY(get_variant(val)), &dispex);
865 if(FAILED(hres))
866 return hres;
867
868 *disp = to_disp(dispex);
869 break;
870
871 default:
872 FIXME("Unsupported %s\n", debugstr_variant(get_variant(val)));
873 return E_NOTIMPL;
874 }
875 break;
876 }
877
878 return S_OK;
879 }
880
variant_change_type(script_ctx_t * ctx,VARIANT * dst,VARIANT * src,VARTYPE vt)881 HRESULT variant_change_type(script_ctx_t *ctx, VARIANT *dst, VARIANT *src, VARTYPE vt)
882 {
883 jsval_t val;
884 HRESULT hres;
885
886 clear_ei(ctx);
887 hres = variant_to_jsval(src, &val);
888 if(FAILED(hres))
889 return hres;
890
891 switch(vt) {
892 case VT_I2:
893 case VT_I4: {
894 INT i;
895
896 hres = to_int32(ctx, val, &i);
897 if(SUCCEEDED(hres)) {
898 if(vt == VT_I4)
899 V_I4(dst) = i;
900 else
901 V_I2(dst) = i;
902 }
903 break;
904 }
905 case VT_UI2: {
906 UINT32 i;
907
908 hres = to_uint32(ctx, val, &i);
909 if(SUCCEEDED(hres))
910 V_UI2(dst) = i;
911 break;
912 }
913 case VT_R8: {
914 double n;
915 hres = to_number(ctx, val, &n);
916 if(SUCCEEDED(hres))
917 V_R8(dst) = n;
918 break;
919 }
920 case VT_R4: {
921 double n;
922
923 hres = to_number(ctx, val, &n);
924 if(SUCCEEDED(hres))
925 V_R4(dst) = n;
926 break;
927 }
928 case VT_BOOL: {
929 BOOL b;
930
931 hres = to_boolean(val, &b);
932 if(SUCCEEDED(hres))
933 V_BOOL(dst) = b ? VARIANT_TRUE : VARIANT_FALSE;
934 break;
935 }
936 case VT_BSTR: {
937 jsstr_t *str;
938
939 hres = to_string(ctx, val, &str);
940 if(FAILED(hres))
941 break;
942
943 if(is_null_bstr(str)) {
944 V_BSTR(dst) = NULL;
945 break;
946 }
947
948 V_BSTR(dst) = SysAllocStringLen(NULL, jsstr_length(str));
949 if(V_BSTR(dst))
950 jsstr_flush(str, V_BSTR(dst));
951 else
952 hres = E_OUTOFMEMORY;
953 break;
954 }
955 case VT_EMPTY:
956 hres = V_VT(src) == VT_EMPTY ? S_OK : E_NOTIMPL;
957 break;
958 case VT_NULL:
959 hres = V_VT(src) == VT_NULL ? S_OK : E_NOTIMPL;
960 break;
961 default:
962 FIXME("vt %d not implemented\n", vt);
963 hres = E_NOTIMPL;
964 }
965
966 jsval_release(val);
967 if(FAILED(hres))
968 return hres;
969
970 V_VT(dst) = vt;
971 return S_OK;
972 }
973
impl_from_IServiceProvider(IServiceProvider * iface)974 static inline JSCaller *impl_from_IServiceProvider(IServiceProvider *iface)
975 {
976 return CONTAINING_RECORD(iface, JSCaller, IServiceProvider_iface);
977 }
978
JSCaller_QueryInterface(IServiceProvider * iface,REFIID riid,void ** ppv)979 static HRESULT WINAPI JSCaller_QueryInterface(IServiceProvider *iface, REFIID riid, void **ppv)
980 {
981 JSCaller *This = impl_from_IServiceProvider(iface);
982
983 if(IsEqualGUID(&IID_IUnknown, riid)) {
984 TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
985 *ppv = &This->IServiceProvider_iface;
986 }else if(IsEqualGUID(&IID_IServiceProvider, riid)) {
987 TRACE("(%p)->(IID_IServiceProvider %p)\n", This, ppv);
988 *ppv = &This->IServiceProvider_iface;
989 }else {
990 WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
991 *ppv = NULL;
992 return E_NOINTERFACE;
993 }
994
995 IUnknown_AddRef((IUnknown*)*ppv);
996 return S_OK;
997 }
998
JSCaller_AddRef(IServiceProvider * iface)999 static ULONG WINAPI JSCaller_AddRef(IServiceProvider *iface)
1000 {
1001 JSCaller *This = impl_from_IServiceProvider(iface);
1002 LONG ref = InterlockedIncrement(&This->ref);
1003
1004 TRACE("(%p) ref=%d\n", This, ref);
1005
1006 return ref;
1007 }
1008
JSCaller_Release(IServiceProvider * iface)1009 static ULONG WINAPI JSCaller_Release(IServiceProvider *iface)
1010 {
1011 JSCaller *This = impl_from_IServiceProvider(iface);
1012 LONG ref = InterlockedIncrement(&This->ref);
1013
1014 TRACE("(%p) ref=%d\n", This, ref);
1015
1016 if(!ref) {
1017 assert(!This->ctx);
1018 heap_free(This);
1019 }
1020
1021 return ref;
1022 }
1023
JSCaller_QueryService(IServiceProvider * iface,REFGUID guidService,REFIID riid,void ** ppv)1024 static HRESULT WINAPI JSCaller_QueryService(IServiceProvider *iface, REFGUID guidService,
1025 REFIID riid, void **ppv)
1026 {
1027 JSCaller *This = impl_from_IServiceProvider(iface);
1028
1029 if(IsEqualGUID(guidService, &SID_VariantConversion) && This->ctx && This->ctx->active_script) {
1030 TRACE("(%p)->(SID_VariantConversion)\n", This);
1031 return IActiveScript_QueryInterface(This->ctx->active_script, riid, ppv);
1032 }
1033
1034 FIXME("(%p)->(%s %s %p)\n", This, debugstr_guid(guidService), debugstr_guid(riid), ppv);
1035
1036 *ppv = NULL;
1037 return E_NOINTERFACE;
1038 }
1039
1040 static const IServiceProviderVtbl ServiceProviderVtbl = {
1041 JSCaller_QueryInterface,
1042 JSCaller_AddRef,
1043 JSCaller_Release,
1044 JSCaller_QueryService
1045 };
1046
create_jscaller(script_ctx_t * ctx)1047 HRESULT create_jscaller(script_ctx_t *ctx)
1048 {
1049 JSCaller *ret;
1050
1051 ret = heap_alloc(sizeof(*ret));
1052 if(!ret)
1053 return E_OUTOFMEMORY;
1054
1055 ret->IServiceProvider_iface.lpVtbl = &ServiceProviderVtbl;
1056 ret->ref = 1;
1057 ret->ctx = ctx;
1058
1059 ctx->jscaller = ret;
1060 return S_OK;
1061 }
1062