2 * Copyright 2008 Jacek Caban for CodeWeavers
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.
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.
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
20 #include "wine/port.h"
27 #include "wine/debug.h"
29 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
30 WINE_DECLARE_DEBUG_CHANNEL(heap);
32 const char *debugstr_variant(const VARIANT *v)
43 return wine_dbg_sprintf("{VT_I4: %d}", V_I4(v));
45 return wine_dbg_sprintf("{VT_UI4: %u}", V_UI4(v));
47 return wine_dbg_sprintf("{VT_R8: %lf}", V_R8(v));
49 return wine_dbg_sprintf("{VT_BSTR: %s}", debugstr_w(V_BSTR(v)));
51 return wine_dbg_sprintf("{VT_DISPATCH: %p}", V_DISPATCH(v));
53 return wine_dbg_sprintf("{VT_BOOL: %x}", V_BOOL(v));
55 return wine_dbg_sprintf("{vt %d}", V_VT(v));
59 #define MIN_BLOCK_SIZE 128
60 #define ARENA_FREE_FILLER 0xaa
62 static inline DWORD block_size(DWORD block)
64 return MIN_BLOCK_SIZE << block;
67 void jsheap_init(jsheap_t *heap)
69 memset(heap, 0, sizeof(*heap));
70 list_init(&heap->custom_blocks);
73 void *jsheap_alloc(jsheap_t *heap, DWORD size)
78 if(!heap->block_cnt) {
80 heap->blocks = heap_alloc(sizeof(void*));
85 tmp = heap_alloc(block_size(0));
89 heap->blocks[0] = tmp;
93 if(heap->offset + size <= block_size(heap->last_block)) {
94 tmp = ((BYTE*)heap->blocks[heap->last_block])+heap->offset;
99 if(size <= block_size(heap->last_block+1)) {
100 if(heap->last_block+1 == heap->block_cnt) {
101 tmp = heap_realloc(heap->blocks, (heap->block_cnt+1)*sizeof(void*));
106 heap->blocks[heap->block_cnt] = heap_alloc(block_size(heap->block_cnt));
107 if(!heap->blocks[heap->block_cnt])
115 return heap->blocks[heap->last_block];
118 list = heap_alloc(size + sizeof(struct list));
122 list_add_head(&heap->custom_blocks, list);
126 void *jsheap_grow(jsheap_t *heap, void *mem, DWORD size, DWORD inc)
128 if(mem == (BYTE*)heap->blocks[heap->last_block] + heap->offset-size
129 && heap->offset+inc < block_size(heap->last_block)) {
134 return jsheap_alloc(heap, size+inc);
137 void jsheap_clear(jsheap_t *heap)
144 while((tmp = list_next(&heap->custom_blocks, &heap->custom_blocks))) {
152 for(i=0; i < heap->block_cnt; i++)
153 memset(heap->blocks[i], ARENA_FREE_FILLER, block_size(i));
156 heap->last_block = heap->offset = 0;
160 void jsheap_free(jsheap_t *heap)
166 for(i=0; i < heap->block_cnt; i++)
167 heap_free(heap->blocks[i]);
168 heap_free(heap->blocks);
173 jsheap_t *jsheap_mark(jsheap_t *heap)
182 /* ECMA-262 3rd Edition 9.1 */
183 HRESULT to_primitive(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret, hint_t hint)
195 V_BSTR(ret) = SysAllocString(V_BSTR(v));
200 DISPPARAMS dp = {NULL, NULL, 0, 0};
203 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
204 static const WCHAR valueOfW[] = {'v','a','l','u','e','O','f',0};
211 jsdisp = iface_to_jsdisp((IUnknown*)V_DISPATCH(v));
213 V_VT(ret) = VT_EMPTY;
214 return disp_propget(ctx, V_DISPATCH(v), DISPID_VALUE, ret, ei, NULL /*FIXME*/);
218 hint = is_class(jsdisp, JSCLASS_DATE) ? HINT_STRING : HINT_NUMBER;
220 /* Native implementation doesn't throw TypeErrors, returns strange values */
222 hres = jsdisp_get_id(jsdisp, hint == HINT_STRING ? toStringW : valueOfW, 0, &id);
223 if(SUCCEEDED(hres)) {
224 hres = jsdisp_call(jsdisp, id, DISPATCH_METHOD, &dp, ret, ei, NULL /*FIXME*/);
226 WARN("call error - forwarding exception\n");
227 jsdisp_release(jsdisp);
230 else if(V_VT(ret) != VT_DISPATCH) {
231 jsdisp_release(jsdisp);
235 IDispatch_Release(V_DISPATCH(ret));
238 hres = jsdisp_get_id(jsdisp, hint == HINT_STRING ? valueOfW : toStringW, 0, &id);
239 if(SUCCEEDED(hres)) {
240 hres = jsdisp_call(jsdisp, id, DISPATCH_METHOD, &dp, ret, ei, NULL /*FIXME*/);
242 WARN("call error - forwarding exception\n");
243 jsdisp_release(jsdisp);
246 else if(V_VT(ret) != VT_DISPATCH) {
247 jsdisp_release(jsdisp);
251 IDispatch_Release(V_DISPATCH(ret));
254 jsdisp_release(jsdisp);
257 return throw_type_error(ctx, ei, JS_E_TO_PRIMITIVE, NULL);
260 FIXME("Unimplemented for vt %d\n", V_VT(v));
267 /* ECMA-262 3rd Edition 9.2 */
268 HRESULT to_boolean(VARIANT *v, VARIANT_BOOL *b)
276 *b = V_I4(v) ? VARIANT_TRUE : VARIANT_FALSE;
279 if(isnan(V_R8(v))) *b = VARIANT_FALSE;
280 else *b = V_R8(v) ? VARIANT_TRUE : VARIANT_FALSE;
283 *b = V_BSTR(v) && *V_BSTR(v) ? VARIANT_TRUE : VARIANT_FALSE;
286 *b = V_DISPATCH(v) ? VARIANT_TRUE : VARIANT_FALSE;
292 FIXME("unimplemented for vt %d\n", V_VT(v));
299 static int hex_to_int(WCHAR c)
301 if('0' <= c && c <= '9')
304 if('a' <= c && c <= 'f')
307 if('A' <= c && c <= 'F')
313 /* ECMA-262 3rd Edition 9.3.1 */
314 static HRESULT str_to_number(BSTR str, VARIANT *ret)
316 const WCHAR *ptr = str;
320 static const WCHAR infinityW[] = {'I','n','f','i','n','i','t','y'};
322 while(isspaceW(*ptr))
328 }else if(*ptr == '+') {
332 if(!strncmpW(ptr, infinityW, sizeof(infinityW)/sizeof(WCHAR))) {
333 ptr += sizeof(infinityW)/sizeof(WCHAR);
334 while(*ptr && isspaceW(*ptr))
340 num_set_inf(ret, !neg);
344 if(*ptr == '0' && ptr[1] == 'x') {
348 while((l = hex_to_int(*ptr)) != -1) {
357 while(isdigitW(*ptr))
358 d = d*10 + (*ptr++ - '0');
360 if(*ptr == 'e' || *ptr == 'E') {
368 }else if(*ptr == '+') {
372 while(isdigitW(*ptr))
373 l = l*10 + (*ptr++ - '0');
378 }else if(*ptr == '.') {
382 while(isdigitW(*ptr)) {
383 d += dec * (*ptr++ - '0');
388 while(isspaceW(*ptr))
403 /* ECMA-262 3rd Edition 9.3 */
404 HRESULT to_number(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret)
419 return str_to_number(V_BSTR(v), ret);
424 hres = to_primitive(ctx, v, ei, &prim, HINT_NUMBER);
428 hres = to_number(ctx, &prim, ei, ret);
434 V_I4(ret) = V_BOOL(v) ? 1 : 0;
437 FIXME("unimplemented for vt %d\n", V_VT(v));
444 /* ECMA-262 3rd Edition 9.4 */
445 HRESULT to_integer(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret)
450 hres = to_number(ctx, v, ei, &num);
454 if(V_VT(&num) == VT_I4) {
456 }else if(isnan(V_R8(&num))) {
460 num_set_val(ret, V_R8(&num) >= 0.0 ? floor(V_R8(&num)) : -floor(-V_R8(&num)));
466 /* ECMA-262 3rd Edition 9.5 */
467 HRESULT to_int32(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, INT *ret)
472 hres = to_number(ctx, v, ei, &num);
476 if(V_VT(&num) == VT_I4)
479 *ret = isnan(V_R8(&num)) || isinf(V_R8(&num)) ? 0 : (INT)V_R8(&num);
483 /* ECMA-262 3rd Edition 9.6 */
484 HRESULT to_uint32(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, DWORD *ret)
489 hres = to_number(ctx, v, ei, &num);
493 if(V_VT(&num) == VT_I4)
496 *ret = isnan(V_R8(&num)) || isinf(V_R8(&num)) ? 0 : (DWORD)V_R8(&num);
500 static BSTR int_to_bstr(INT i)
506 static const WCHAR zeroW[] = {'0',0};
507 return SysAllocString(zeroW);
515 p = buf + sizeof(buf)/sizeof(*buf)-1;
527 return SysAllocString(p);
530 /* ECMA-262 3rd Edition 9.8 */
531 HRESULT to_string(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, BSTR *str)
533 const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0};
534 const WCHAR nullW[] = {'n','u','l','l',0};
535 const WCHAR trueW[] = {'t','r','u','e',0};
536 const WCHAR falseW[] = {'f','a','l','s','e',0};
537 const WCHAR NaNW[] = {'N','a','N',0};
538 const WCHAR InfinityW[] = {'-','I','n','f','i','n','i','t','y',0};
542 *str = SysAllocString(undefinedW);
545 *str = SysAllocString(nullW);
548 *str = int_to_bstr(V_I4(v));
552 *str = SysAllocString(NaNW);
553 else if(isinf(V_R8(v)))
554 *str = SysAllocString(V_R8(v)<0 ? InfinityW : InfinityW+1);
559 V_VT(&strv) = VT_EMPTY;
560 hres = VariantChangeTypeEx(&strv, v, MAKELCID(MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),SORT_DEFAULT), 0, VT_BSTR);
564 *str = V_BSTR(&strv);
570 *str = SysAllocString(V_BSTR(v));
576 hres = to_primitive(ctx, v, ei, &prim, HINT_STRING);
580 hres = to_string(ctx, &prim, ei, str);
585 *str = SysAllocString(V_BOOL(v) ? trueW : falseW);
588 FIXME("unsupported vt %d\n", V_VT(v));
592 return *str ? S_OK : E_OUTOFMEMORY;
595 /* ECMA-262 3rd Edition 9.9 */
596 HRESULT to_object(script_ctx_t *ctx, VARIANT *v, IDispatch **disp)
603 hres = create_string(ctx, V_BSTR(v), SysStringLen(V_BSTR(v)), &dispex);
607 *disp = to_disp(dispex);
611 hres = create_number(ctx, v, &dispex);
615 *disp = to_disp(dispex);
619 IDispatch_AddRef(V_DISPATCH(v));
620 *disp = V_DISPATCH(v);
624 hres = create_object(ctx, NULL, &obj);
628 *disp = to_disp(obj);
632 hres = create_bool(ctx, V_BOOL(v), &dispex);
636 *disp = to_disp(dispex);
638 case VT_ARRAY|VT_VARIANT:
639 hres = create_vbarray(ctx, V_ARRAY(v), &dispex);
643 *disp = to_disp(dispex);
646 FIXME("unsupported vt %d\n", V_VT(v));