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)
36 return wine_dbg_sprintf("{VT_EMPTY}");
38 return wine_dbg_sprintf("{VT_NULL}");
40 return wine_dbg_sprintf("{VT_I4: %d}", V_I4(v));
42 return wine_dbg_sprintf("{VT_R8: %lf}", V_R8(v));
44 return wine_dbg_sprintf("{VT_BSTR: %s}", debugstr_w(V_BSTR(v)));
46 return wine_dbg_sprintf("{VT_DISPATCH: %p}", V_DISPATCH(v));
48 return wine_dbg_sprintf("{VT_BOOL: %x}", V_BOOL(v));
50 return wine_dbg_sprintf("{vt %d}", V_VT(v));
54 #define MIN_BLOCK_SIZE 128
55 #define ARENA_FREE_FILLER 0xaa
57 static inline DWORD block_size(DWORD block)
59 return MIN_BLOCK_SIZE << block;
62 void jsheap_init(jsheap_t *heap)
64 memset(heap, 0, sizeof(*heap));
65 list_init(&heap->custom_blocks);
68 void *jsheap_alloc(jsheap_t *heap, DWORD size)
73 if(!heap->block_cnt) {
75 heap->blocks = heap_alloc(sizeof(void*));
80 tmp = heap_alloc(block_size(0));
84 heap->blocks[0] = tmp;
88 if(heap->offset + size <= block_size(heap->last_block)) {
89 tmp = ((BYTE*)heap->blocks[heap->last_block])+heap->offset;
94 if(size <= block_size(heap->last_block+1)) {
95 if(heap->last_block+1 == heap->block_cnt) {
96 tmp = heap_realloc(heap->blocks, (heap->block_cnt+1)*sizeof(void*));
101 heap->blocks[heap->block_cnt] = heap_alloc(block_size(heap->block_cnt));
102 if(!heap->blocks[heap->block_cnt])
110 return heap->blocks[heap->last_block];
113 list = heap_alloc(size + sizeof(struct list));
117 list_add_head(&heap->custom_blocks, list);
121 void *jsheap_grow(jsheap_t *heap, void *mem, DWORD size, DWORD inc)
123 if(mem == (BYTE*)heap->blocks[heap->last_block] + heap->offset-size
124 && heap->offset+inc < block_size(heap->last_block)) {
129 return jsheap_alloc(heap, size+inc);
132 void jsheap_clear(jsheap_t *heap)
139 while((tmp = list_next(&heap->custom_blocks, &heap->custom_blocks))) {
147 for(i=0; i < heap->block_cnt; i++)
148 memset(heap->blocks[i], ARENA_FREE_FILLER, block_size(i));
151 heap->last_block = heap->offset = 0;
155 void jsheap_free(jsheap_t *heap)
161 for(i=0; i < heap->block_cnt; i++)
162 heap_free(heap->blocks[i]);
163 heap_free(heap->blocks);
168 jsheap_t *jsheap_mark(jsheap_t *heap)
177 /* ECMA-262 3rd Edition 9.1 */
178 HRESULT to_primitive(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret)
190 V_BSTR(ret) = SysAllocString(V_BSTR(v));
193 return disp_propget(V_DISPATCH(v), DISPID_VALUE, ctx->lcid, ret, ei, NULL /*FIXME*/);
195 FIXME("Unimplemented for vt %d\n", V_VT(v));
202 /* ECMA-262 3rd Edition 9.2 */
203 HRESULT to_boolean(VARIANT *v, VARIANT_BOOL *b)
211 *b = V_I4(v) ? VARIANT_TRUE : VARIANT_FALSE;
214 if(isnan(V_R8(v))) *b = VARIANT_FALSE;
215 else *b = V_R8(v) ? VARIANT_TRUE : VARIANT_FALSE;
218 *b = V_BSTR(v) && *V_BSTR(v) ? VARIANT_TRUE : VARIANT_FALSE;
221 *b = V_DISPATCH(v) ? VARIANT_TRUE : VARIANT_FALSE;
227 FIXME("unimplemented for vt %d\n", V_VT(v));
234 static int hex_to_int(WCHAR c)
236 if('0' <= c && c <= '9')
239 if('a' <= c && c <= 'f')
242 if('A' <= c && c <= 'F')
248 /* ECMA-262 3rd Edition 9.3.1 */
249 static HRESULT str_to_number(BSTR str, VARIANT *ret)
251 const WCHAR *ptr = str;
255 static const WCHAR infinityW[] = {'I','n','f','i','n','i','t','y'};
257 while(isspaceW(*ptr))
263 }else if(*ptr == '+') {
267 if(!strncmpW(ptr, infinityW, sizeof(infinityW)/sizeof(WCHAR))) {
268 ptr += sizeof(infinityW)/sizeof(WCHAR);
269 while(*ptr && isspaceW(*ptr))
275 num_set_inf(ret, !neg);
279 if(*ptr == '0' && ptr[1] == 'x') {
283 while((l = hex_to_int(*ptr)) != -1) {
292 while(isdigitW(*ptr))
293 d = d*10 + (*ptr++ - '0');
295 if(*ptr == 'e' || *ptr == 'E') {
303 }else if(*ptr == '+') {
307 while(isdigitW(*ptr))
308 l = l*10 + (*ptr++ - '0');
313 }else if(*ptr == '.') {
317 while(isdigitW(*ptr)) {
318 d += dec * (*ptr++ - '0');
323 while(isspaceW(*ptr))
338 /* ECMA-262 3rd Edition 9.3 */
339 HRESULT to_number(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret)
354 return str_to_number(V_BSTR(v), ret);
359 hres = to_primitive(ctx, v, ei, &prim);
363 hres = to_number(ctx, &prim, ei, ret);
369 V_I4(ret) = V_BOOL(v) ? 1 : 0;
372 FIXME("unimplemented for vt %d\n", V_VT(v));
379 /* ECMA-262 3rd Edition 9.4 */
380 HRESULT to_integer(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret)
385 hres = to_number(ctx, v, ei, &num);
389 if(V_VT(&num) == VT_I4)
392 num_set_val(ret, V_R8(&num) >= 0.0 ? floor(V_R8(&num)) : -floor(-V_R8(&num)));
397 /* ECMA-262 3rd Edition 9.5 */
398 HRESULT to_int32(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, INT *ret)
403 hres = to_number(ctx, v, ei, &num);
407 *ret = V_VT(&num) == VT_I4 ? V_I4(&num) : (INT)V_R8(&num);
411 /* ECMA-262 3rd Edition 9.6 */
412 HRESULT to_uint32(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, DWORD *ret)
417 hres = to_number(ctx, v, ei, &num);
421 *ret = V_VT(&num) == VT_I4 ? V_I4(&num) : (DWORD)V_R8(&num);
425 static BSTR int_to_bstr(INT i)
431 static const WCHAR zeroW[] = {'0',0};
432 return SysAllocString(zeroW);
440 p = buf + sizeof(buf)/sizeof(*buf)-1;
452 return SysAllocString(p);
455 /* ECMA-262 3rd Edition 9.8 */
456 HRESULT to_string(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, BSTR *str)
458 const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0};
459 const WCHAR nullW[] = {'n','u','l','l',0};
460 const WCHAR trueW[] = {'t','r','u','e',0};
461 const WCHAR falseW[] = {'f','a','l','s','e',0};
465 *str = SysAllocString(undefinedW);
468 *str = SysAllocString(nullW);
471 *str = int_to_bstr(V_I4(v));
477 V_VT(&strv) = VT_EMPTY;
478 hres = VariantChangeTypeEx(&strv, v, MAKELCID(MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),SORT_DEFAULT), 0, VT_BSTR);
482 *str = V_BSTR(&strv);
486 *str = SysAllocString(V_BSTR(v));
492 hres = to_primitive(ctx, v, ei, &prim);
496 hres = to_string(ctx, &prim, ei, str);
501 *str = SysAllocString(V_BOOL(v) ? trueW : falseW);
504 FIXME("unsupported vt %d\n", V_VT(v));
508 return *str ? S_OK : E_OUTOFMEMORY;
511 /* ECMA-262 3rd Edition 9.9 */
512 HRESULT to_object(exec_ctx_t *ctx, VARIANT *v, IDispatch **disp)
519 hres = create_string(ctx->parser->script, V_BSTR(v), SysStringLen(V_BSTR(v)), &dispex);
523 *disp = (IDispatch*)_IDispatchEx_(dispex);
527 hres = create_number(ctx->parser->script, v, &dispex);
531 *disp = (IDispatch*)_IDispatchEx_(dispex);
534 IDispatch_AddRef(V_DISPATCH(v));
535 *disp = V_DISPATCH(v);
538 hres = create_bool(ctx->parser->script, V_BOOL(v), &dispex);
542 *disp = (IDispatch*)_IDispatchEx_(dispex);
545 FIXME("unsupported vt %d\n", V_VT(v));