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_R8: %lf}", V_R8(v));
47 return wine_dbg_sprintf("{VT_BSTR: %s}", debugstr_w(V_BSTR(v)));
49 return wine_dbg_sprintf("{VT_DISPATCH: %p}", V_DISPATCH(v));
51 return wine_dbg_sprintf("{VT_BOOL: %x}", V_BOOL(v));
53 return wine_dbg_sprintf("{vt %d}", V_VT(v));
57 #define MIN_BLOCK_SIZE 128
58 #define ARENA_FREE_FILLER 0xaa
60 static inline DWORD block_size(DWORD block)
62 return MIN_BLOCK_SIZE << block;
65 void jsheap_init(jsheap_t *heap)
67 memset(heap, 0, sizeof(*heap));
68 list_init(&heap->custom_blocks);
71 void *jsheap_alloc(jsheap_t *heap, DWORD size)
76 if(!heap->block_cnt) {
78 heap->blocks = heap_alloc(sizeof(void*));
83 tmp = heap_alloc(block_size(0));
87 heap->blocks[0] = tmp;
91 if(heap->offset + size <= block_size(heap->last_block)) {
92 tmp = ((BYTE*)heap->blocks[heap->last_block])+heap->offset;
97 if(size <= block_size(heap->last_block+1)) {
98 if(heap->last_block+1 == heap->block_cnt) {
99 tmp = heap_realloc(heap->blocks, (heap->block_cnt+1)*sizeof(void*));
104 heap->blocks[heap->block_cnt] = heap_alloc(block_size(heap->block_cnt));
105 if(!heap->blocks[heap->block_cnt])
113 return heap->blocks[heap->last_block];
116 list = heap_alloc(size + sizeof(struct list));
120 list_add_head(&heap->custom_blocks, list);
124 void *jsheap_grow(jsheap_t *heap, void *mem, DWORD size, DWORD inc)
126 if(mem == (BYTE*)heap->blocks[heap->last_block] + heap->offset-size
127 && heap->offset+inc < block_size(heap->last_block)) {
132 return jsheap_alloc(heap, size+inc);
135 void jsheap_clear(jsheap_t *heap)
142 while((tmp = list_next(&heap->custom_blocks, &heap->custom_blocks))) {
150 for(i=0; i < heap->block_cnt; i++)
151 memset(heap->blocks[i], ARENA_FREE_FILLER, block_size(i));
154 heap->last_block = heap->offset = 0;
158 void jsheap_free(jsheap_t *heap)
164 for(i=0; i < heap->block_cnt; i++)
165 heap_free(heap->blocks[i]);
166 heap_free(heap->blocks);
171 jsheap_t *jsheap_mark(jsheap_t *heap)
180 /* ECMA-262 3rd Edition 9.1 */
181 HRESULT to_primitive(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret, hint_t hint)
193 V_BSTR(ret) = SysAllocString(V_BSTR(v));
198 DISPPARAMS dp = {NULL, NULL, 0, 0};
201 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
202 static const WCHAR valueOfW[] = {'v','a','l','u','e','O','f',0};
209 jsdisp = iface_to_jsdisp((IUnknown*)V_DISPATCH(v));
211 V_VT(ret) = VT_EMPTY;
212 return disp_propget(ctx, V_DISPATCH(v), DISPID_VALUE, ret, ei, NULL /*FIXME*/);
216 hint = is_class(jsdisp, JSCLASS_DATE) ? HINT_STRING : HINT_NUMBER;
218 /* Native implementation doesn't throw TypeErrors, returns strange values */
220 hres = jsdisp_get_id(jsdisp, hint == HINT_STRING ? toStringW : valueOfW, 0, &id);
221 if(SUCCEEDED(hres)) {
222 hres = jsdisp_call(jsdisp, id, DISPATCH_METHOD, &dp, ret, ei, NULL /*FIXME*/);
224 WARN("call error - forwarding exception\n");
225 jsdisp_release(jsdisp);
228 else if(V_VT(ret) != VT_DISPATCH) {
229 jsdisp_release(jsdisp);
233 IDispatch_Release(V_DISPATCH(ret));
236 hres = jsdisp_get_id(jsdisp, hint == HINT_STRING ? valueOfW : toStringW, 0, &id);
237 if(SUCCEEDED(hres)) {
238 hres = jsdisp_call(jsdisp, id, DISPATCH_METHOD, &dp, ret, ei, NULL /*FIXME*/);
240 WARN("call error - forwarding exception\n");
241 jsdisp_release(jsdisp);
244 else if(V_VT(ret) != VT_DISPATCH) {
245 jsdisp_release(jsdisp);
249 IDispatch_Release(V_DISPATCH(ret));
252 jsdisp_release(jsdisp);
255 return throw_type_error(ctx, ei, JS_E_TO_PRIMITIVE, NULL);
258 FIXME("Unimplemented for vt %d\n", V_VT(v));
265 /* ECMA-262 3rd Edition 9.2 */
266 HRESULT to_boolean(VARIANT *v, VARIANT_BOOL *b)
274 *b = V_I4(v) ? VARIANT_TRUE : VARIANT_FALSE;
277 if(isnan(V_R8(v))) *b = VARIANT_FALSE;
278 else *b = V_R8(v) ? VARIANT_TRUE : VARIANT_FALSE;
281 *b = V_BSTR(v) && *V_BSTR(v) ? VARIANT_TRUE : VARIANT_FALSE;
284 *b = V_DISPATCH(v) ? VARIANT_TRUE : VARIANT_FALSE;
290 FIXME("unimplemented for vt %d\n", V_VT(v));
297 static int hex_to_int(WCHAR c)
299 if('0' <= c && c <= '9')
302 if('a' <= c && c <= 'f')
305 if('A' <= c && c <= 'F')
311 /* ECMA-262 3rd Edition 9.3.1 */
312 static HRESULT str_to_number(BSTR str, VARIANT *ret)
314 const WCHAR *ptr = str;
318 static const WCHAR infinityW[] = {'I','n','f','i','n','i','t','y'};
320 while(isspaceW(*ptr))
326 }else if(*ptr == '+') {
330 if(!strncmpW(ptr, infinityW, sizeof(infinityW)/sizeof(WCHAR))) {
331 ptr += sizeof(infinityW)/sizeof(WCHAR);
332 while(*ptr && isspaceW(*ptr))
338 num_set_inf(ret, !neg);
342 if(*ptr == '0' && ptr[1] == 'x') {
346 while((l = hex_to_int(*ptr)) != -1) {
355 while(isdigitW(*ptr))
356 d = d*10 + (*ptr++ - '0');
358 if(*ptr == 'e' || *ptr == 'E') {
366 }else if(*ptr == '+') {
370 while(isdigitW(*ptr))
371 l = l*10 + (*ptr++ - '0');
376 }else if(*ptr == '.') {
380 while(isdigitW(*ptr)) {
381 d += dec * (*ptr++ - '0');
386 while(isspaceW(*ptr))
401 /* ECMA-262 3rd Edition 9.3 */
402 HRESULT to_number(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret)
417 return str_to_number(V_BSTR(v), ret);
422 hres = to_primitive(ctx, v, ei, &prim, HINT_NUMBER);
426 hres = to_number(ctx, &prim, ei, ret);
432 V_I4(ret) = V_BOOL(v) ? 1 : 0;
435 FIXME("unimplemented for vt %d\n", V_VT(v));
442 /* ECMA-262 3rd Edition 9.4 */
443 HRESULT to_integer(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret)
448 hres = to_number(ctx, v, ei, &num);
452 if(V_VT(&num) == VT_I4) {
454 }else if(isnan(V_R8(&num))) {
458 num_set_val(ret, V_R8(&num) >= 0.0 ? floor(V_R8(&num)) : -floor(-V_R8(&num)));
464 /* ECMA-262 3rd Edition 9.5 */
465 HRESULT to_int32(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, INT *ret)
470 hres = to_number(ctx, v, ei, &num);
474 if(V_VT(&num) == VT_I4)
477 *ret = isnan(V_R8(&num)) || isinf(V_R8(&num)) ? 0 : (INT)V_R8(&num);
481 /* ECMA-262 3rd Edition 9.6 */
482 HRESULT to_uint32(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, DWORD *ret)
487 hres = to_number(ctx, v, ei, &num);
491 if(V_VT(&num) == VT_I4)
494 *ret = isnan(V_R8(&num)) || isinf(V_R8(&num)) ? 0 : (DWORD)V_R8(&num);
498 static BSTR int_to_bstr(INT i)
504 static const WCHAR zeroW[] = {'0',0};
505 return SysAllocString(zeroW);
513 p = buf + sizeof(buf)/sizeof(*buf)-1;
525 return SysAllocString(p);
528 /* ECMA-262 3rd Edition 9.8 */
529 HRESULT to_string(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, BSTR *str)
531 const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0};
532 const WCHAR nullW[] = {'n','u','l','l',0};
533 const WCHAR trueW[] = {'t','r','u','e',0};
534 const WCHAR falseW[] = {'f','a','l','s','e',0};
535 const WCHAR NaNW[] = {'N','a','N',0};
536 const WCHAR InfinityW[] = {'-','I','n','f','i','n','i','t','y',0};
540 *str = SysAllocString(undefinedW);
543 *str = SysAllocString(nullW);
546 *str = int_to_bstr(V_I4(v));
550 *str = SysAllocString(NaNW);
551 else if(isinf(V_R8(v)))
552 *str = SysAllocString(V_R8(v)<0 ? InfinityW : InfinityW+1);
557 V_VT(&strv) = VT_EMPTY;
558 hres = VariantChangeTypeEx(&strv, v, MAKELCID(MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),SORT_DEFAULT), 0, VT_BSTR);
562 *str = V_BSTR(&strv);
568 *str = SysAllocString(V_BSTR(v));
574 hres = to_primitive(ctx, v, ei, &prim, HINT_STRING);
578 hres = to_string(ctx, &prim, ei, str);
583 *str = SysAllocString(V_BOOL(v) ? trueW : falseW);
586 FIXME("unsupported vt %d\n", V_VT(v));
590 return *str ? S_OK : E_OUTOFMEMORY;
593 /* ECMA-262 3rd Edition 9.9 */
594 HRESULT to_object(script_ctx_t *ctx, VARIANT *v, IDispatch **disp)
601 hres = create_string(ctx, V_BSTR(v), SysStringLen(V_BSTR(v)), &dispex);
605 *disp = to_disp(dispex);
609 hres = create_number(ctx, v, &dispex);
613 *disp = to_disp(dispex);
617 IDispatch_AddRef(V_DISPATCH(v));
618 *disp = V_DISPATCH(v);
622 hres = create_object(ctx, NULL, &obj);
626 *disp = to_disp(obj);
630 hres = create_bool(ctx, V_BOOL(v), &dispex);
634 *disp = to_disp(dispex);
636 case VT_ARRAY|VT_VARIANT:
637 hres = create_vbarray(ctx, V_ARRAY(v), &dispex);
641 *disp = to_disp(dispex);
644 FIXME("unsupported vt %d\n", V_VT(v));