| /* |
| * Copyright 2008 Jacek Caban for CodeWeavers |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include "config.h" |
| #include "wine/port.h" |
| |
| #include <math.h> |
| |
| #include "jscript.h" |
| #include "engine.h" |
| |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(jscript); |
| WINE_DECLARE_DEBUG_CHANNEL(heap); |
| |
| const char *debugstr_variant(const VARIANT *v) |
| { |
| if(!v) |
| return "(null)"; |
| |
| switch(V_VT(v)) { |
| case VT_EMPTY: |
| return "{VT_EMPTY}"; |
| case VT_NULL: |
| return "{VT_NULL}"; |
| case VT_I4: |
| return wine_dbg_sprintf("{VT_I4: %d}", V_I4(v)); |
| case VT_UI4: |
| return wine_dbg_sprintf("{VT_UI4: %u}", V_UI4(v)); |
| case VT_R8: |
| return wine_dbg_sprintf("{VT_R8: %lf}", V_R8(v)); |
| case VT_BSTR: |
| return wine_dbg_sprintf("{VT_BSTR: %s}", debugstr_w(V_BSTR(v))); |
| case VT_DISPATCH: |
| return wine_dbg_sprintf("{VT_DISPATCH: %p}", V_DISPATCH(v)); |
| case VT_BOOL: |
| return wine_dbg_sprintf("{VT_BOOL: %x}", V_BOOL(v)); |
| default: |
| return wine_dbg_sprintf("{vt %d}", V_VT(v)); |
| } |
| } |
| |
| #define MIN_BLOCK_SIZE 128 |
| #define ARENA_FREE_FILLER 0xaa |
| |
| static inline DWORD block_size(DWORD block) |
| { |
| return MIN_BLOCK_SIZE << block; |
| } |
| |
| void jsheap_init(jsheap_t *heap) |
| { |
| memset(heap, 0, sizeof(*heap)); |
| list_init(&heap->custom_blocks); |
| } |
| |
| void *jsheap_alloc(jsheap_t *heap, DWORD size) |
| { |
| struct list *list; |
| void *tmp; |
| |
| if(!heap->block_cnt) { |
| if(!heap->blocks) { |
| heap->blocks = heap_alloc(sizeof(void*)); |
| if(!heap->blocks) |
| return NULL; |
| } |
| |
| tmp = heap_alloc(block_size(0)); |
| if(!tmp) |
| return NULL; |
| |
| heap->blocks[0] = tmp; |
| heap->block_cnt = 1; |
| } |
| |
| if(heap->offset + size <= block_size(heap->last_block)) { |
| tmp = ((BYTE*)heap->blocks[heap->last_block])+heap->offset; |
| heap->offset += size; |
| return tmp; |
| } |
| |
| if(size <= block_size(heap->last_block+1)) { |
| if(heap->last_block+1 == heap->block_cnt) { |
| tmp = heap_realloc(heap->blocks, (heap->block_cnt+1)*sizeof(void*)); |
| if(!tmp) |
| return NULL; |
| |
| heap->blocks = tmp; |
| heap->blocks[heap->block_cnt] = heap_alloc(block_size(heap->block_cnt)); |
| if(!heap->blocks[heap->block_cnt]) |
| return NULL; |
| |
| heap->block_cnt++; |
| } |
| |
| heap->last_block++; |
| heap->offset = size; |
| return heap->blocks[heap->last_block]; |
| } |
| |
| list = heap_alloc(size + sizeof(struct list)); |
| if(!list) |
| return NULL; |
| |
| list_add_head(&heap->custom_blocks, list); |
| return list+1; |
| } |
| |
| void *jsheap_grow(jsheap_t *heap, void *mem, DWORD size, DWORD inc) |
| { |
| if(mem == (BYTE*)heap->blocks[heap->last_block] + heap->offset-size |
| && heap->offset+inc < block_size(heap->last_block)) { |
| heap->offset += inc; |
| return mem; |
| } |
| |
| return jsheap_alloc(heap, size+inc); |
| } |
| |
| void jsheap_clear(jsheap_t *heap) |
| { |
| struct list *tmp; |
| |
| if(!heap) |
| return; |
| |
| while((tmp = list_next(&heap->custom_blocks, &heap->custom_blocks))) { |
| list_remove(tmp); |
| heap_free(tmp); |
| } |
| |
| if(WARN_ON(heap)) { |
| DWORD i; |
| |
| for(i=0; i < heap->block_cnt; i++) |
| memset(heap->blocks[i], ARENA_FREE_FILLER, block_size(i)); |
| } |
| |
| heap->last_block = heap->offset = 0; |
| heap->mark = FALSE; |
| } |
| |
| void jsheap_free(jsheap_t *heap) |
| { |
| DWORD i; |
| |
| jsheap_clear(heap); |
| |
| for(i=0; i < heap->block_cnt; i++) |
| heap_free(heap->blocks[i]); |
| heap_free(heap->blocks); |
| |
| jsheap_init(heap); |
| } |
| |
| jsheap_t *jsheap_mark(jsheap_t *heap) |
| { |
| if(heap->mark) |
| return NULL; |
| |
| heap->mark = TRUE; |
| return heap; |
| } |
| |
| /* ECMA-262 3rd Edition 9.1 */ |
| HRESULT to_primitive(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret, hint_t hint) |
| { |
| switch(V_VT(v)) { |
| case VT_EMPTY: |
| case VT_NULL: |
| case VT_BOOL: |
| case VT_I4: |
| case VT_R8: |
| *ret = *v; |
| break; |
| case VT_BSTR: |
| V_VT(ret) = VT_BSTR; |
| V_BSTR(ret) = SysAllocString(V_BSTR(v)); |
| break; |
| case VT_DISPATCH: { |
| jsdisp_t *jsdisp; |
| DISPID id; |
| DISPPARAMS dp = {NULL, NULL, 0, 0}; |
| HRESULT hres; |
| |
| static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0}; |
| static const WCHAR valueOfW[] = {'v','a','l','u','e','O','f',0}; |
| |
| if(!V_DISPATCH(v)) { |
| V_VT(ret) = VT_NULL; |
| break; |
| } |
| |
| jsdisp = iface_to_jsdisp((IUnknown*)V_DISPATCH(v)); |
| if(!jsdisp) { |
| V_VT(ret) = VT_EMPTY; |
| return disp_propget(ctx, V_DISPATCH(v), DISPID_VALUE, ret, ei, NULL /*FIXME*/); |
| } |
| |
| if(hint == NO_HINT) |
| hint = is_class(jsdisp, JSCLASS_DATE) ? HINT_STRING : HINT_NUMBER; |
| |
| /* Native implementation doesn't throw TypeErrors, returns strange values */ |
| |
| hres = jsdisp_get_id(jsdisp, hint == HINT_STRING ? toStringW : valueOfW, 0, &id); |
| if(SUCCEEDED(hres)) { |
| hres = jsdisp_call(jsdisp, id, DISPATCH_METHOD, &dp, ret, ei, NULL /*FIXME*/); |
| if(FAILED(hres)) { |
| WARN("call error - forwarding exception\n"); |
| jsdisp_release(jsdisp); |
| return hres; |
| } |
| else if(V_VT(ret) != VT_DISPATCH) { |
| jsdisp_release(jsdisp); |
| return S_OK; |
| } |
| else |
| IDispatch_Release(V_DISPATCH(ret)); |
| } |
| |
| hres = jsdisp_get_id(jsdisp, hint == HINT_STRING ? valueOfW : toStringW, 0, &id); |
| if(SUCCEEDED(hres)) { |
| hres = jsdisp_call(jsdisp, id, DISPATCH_METHOD, &dp, ret, ei, NULL /*FIXME*/); |
| if(FAILED(hres)) { |
| WARN("call error - forwarding exception\n"); |
| jsdisp_release(jsdisp); |
| return hres; |
| } |
| else if(V_VT(ret) != VT_DISPATCH) { |
| jsdisp_release(jsdisp); |
| return S_OK; |
| } |
| else |
| IDispatch_Release(V_DISPATCH(ret)); |
| } |
| |
| jsdisp_release(jsdisp); |
| |
| WARN("failed\n"); |
| return throw_type_error(ctx, ei, JS_E_TO_PRIMITIVE, NULL); |
| } |
| default: |
| FIXME("Unimplemented for vt %d\n", V_VT(v)); |
| return E_NOTIMPL; |
| } |
| |
| return S_OK; |
| } |
| |
| /* ECMA-262 3rd Edition 9.2 */ |
| HRESULT to_boolean(VARIANT *v, VARIANT_BOOL *b) |
| { |
| switch(V_VT(v)) { |
| case VT_EMPTY: |
| case VT_NULL: |
| *b = VARIANT_FALSE; |
| break; |
| case VT_I4: |
| *b = V_I4(v) ? VARIANT_TRUE : VARIANT_FALSE; |
| break; |
| case VT_R8: |
| if(isnan(V_R8(v))) *b = VARIANT_FALSE; |
| else *b = V_R8(v) ? VARIANT_TRUE : VARIANT_FALSE; |
| break; |
| case VT_BSTR: |
| *b = V_BSTR(v) && *V_BSTR(v) ? VARIANT_TRUE : VARIANT_FALSE; |
| break; |
| case VT_DISPATCH: |
| *b = V_DISPATCH(v) ? VARIANT_TRUE : VARIANT_FALSE; |
| break; |
| case VT_BOOL: |
| *b = V_BOOL(v); |
| break; |
| default: |
| FIXME("unimplemented for vt %d\n", V_VT(v)); |
| return E_NOTIMPL; |
| } |
| |
| return S_OK; |
| } |
| |
| static int hex_to_int(WCHAR c) |
| { |
| if('0' <= c && c <= '9') |
| return c-'0'; |
| |
| if('a' <= c && c <= 'f') |
| return c-'a'+10; |
| |
| if('A' <= c && c <= 'F') |
| return c-'A'+10; |
| |
| return -1; |
| } |
| |
| /* ECMA-262 3rd Edition 9.3.1 */ |
| static HRESULT str_to_number(BSTR str, VARIANT *ret) |
| { |
| const WCHAR *ptr = str; |
| BOOL neg = FALSE; |
| DOUBLE d = 0.0; |
| |
| static const WCHAR infinityW[] = {'I','n','f','i','n','i','t','y'}; |
| |
| while(isspaceW(*ptr)) |
| ptr++; |
| |
| if(*ptr == '-') { |
| neg = TRUE; |
| ptr++; |
| }else if(*ptr == '+') { |
| ptr++; |
| } |
| |
| if(!strncmpW(ptr, infinityW, sizeof(infinityW)/sizeof(WCHAR))) { |
| ptr += sizeof(infinityW)/sizeof(WCHAR); |
| while(*ptr && isspaceW(*ptr)) |
| ptr++; |
| |
| if(*ptr) |
| num_set_nan(ret); |
| else |
| num_set_inf(ret, !neg); |
| return S_OK; |
| } |
| |
| if(*ptr == '0' && ptr[1] == 'x') { |
| DWORD l = 0; |
| |
| ptr += 2; |
| while((l = hex_to_int(*ptr)) != -1) { |
| d = d*16 + l; |
| ptr++; |
| } |
| |
| num_set_val(ret, d); |
| return S_OK; |
| } |
| |
| while(isdigitW(*ptr)) |
| d = d*10 + (*ptr++ - '0'); |
| |
| if(*ptr == 'e' || *ptr == 'E') { |
| BOOL eneg = FALSE; |
| LONG l = 0; |
| |
| ptr++; |
| if(*ptr == '-') { |
| ptr++; |
| eneg = TRUE; |
| }else if(*ptr == '+') { |
| ptr++; |
| } |
| |
| while(isdigitW(*ptr)) |
| l = l*10 + (*ptr++ - '0'); |
| if(eneg) |
| l = -l; |
| |
| d *= pow(10, l); |
| }else if(*ptr == '.') { |
| DOUBLE dec = 0.1; |
| |
| ptr++; |
| while(isdigitW(*ptr)) { |
| d += dec * (*ptr++ - '0'); |
| dec *= 0.1; |
| } |
| } |
| |
| while(isspaceW(*ptr)) |
| ptr++; |
| |
| if(*ptr) { |
| num_set_nan(ret); |
| return S_OK; |
| } |
| |
| if(neg) |
| d = -d; |
| |
| num_set_val(ret, d); |
| return S_OK; |
| } |
| |
| /* ECMA-262 3rd Edition 9.3 */ |
| HRESULT to_number(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret) |
| { |
| switch(V_VT(v)) { |
| case VT_EMPTY: |
| num_set_nan(ret); |
| break; |
| case VT_NULL: |
| V_VT(ret) = VT_I4; |
| V_I4(ret) = 0; |
| break; |
| case VT_I4: |
| case VT_R8: |
| *ret = *v; |
| break; |
| case VT_BSTR: |
| return str_to_number(V_BSTR(v), ret); |
| case VT_DISPATCH: { |
| VARIANT prim; |
| HRESULT hres; |
| |
| hres = to_primitive(ctx, v, ei, &prim, HINT_NUMBER); |
| if(FAILED(hres)) |
| return hres; |
| |
| hres = to_number(ctx, &prim, ei, ret); |
| VariantClear(&prim); |
| return hres; |
| } |
| case VT_BOOL: |
| V_VT(ret) = VT_I4; |
| V_I4(ret) = V_BOOL(v) ? 1 : 0; |
| break; |
| default: |
| FIXME("unimplemented for vt %d\n", V_VT(v)); |
| return E_NOTIMPL; |
| } |
| |
| return S_OK; |
| } |
| |
| /* ECMA-262 3rd Edition 9.4 */ |
| HRESULT to_integer(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret) |
| { |
| VARIANT num; |
| HRESULT hres; |
| |
| hres = to_number(ctx, v, ei, &num); |
| if(FAILED(hres)) |
| return hres; |
| |
| if(V_VT(&num) == VT_I4) { |
| *ret = num; |
| }else if(isnan(V_R8(&num))) { |
| V_VT(ret) = VT_I4; |
| V_I4(ret) = 0; |
| }else { |
| num_set_val(ret, V_R8(&num) >= 0.0 ? floor(V_R8(&num)) : -floor(-V_R8(&num))); |
| } |
| |
| return S_OK; |
| } |
| |
| /* ECMA-262 3rd Edition 9.5 */ |
| HRESULT to_int32(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, INT *ret) |
| { |
| VARIANT num; |
| HRESULT hres; |
| |
| hres = to_number(ctx, v, ei, &num); |
| if(FAILED(hres)) |
| return hres; |
| |
| if(V_VT(&num) == VT_I4) |
| *ret = V_I4(&num); |
| else |
| *ret = isnan(V_R8(&num)) || isinf(V_R8(&num)) ? 0 : (INT)V_R8(&num); |
| return S_OK; |
| } |
| |
| /* ECMA-262 3rd Edition 9.6 */ |
| HRESULT to_uint32(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, DWORD *ret) |
| { |
| VARIANT num; |
| HRESULT hres; |
| |
| hres = to_number(ctx, v, ei, &num); |
| if(FAILED(hres)) |
| return hres; |
| |
| if(V_VT(&num) == VT_I4) |
| *ret = V_I4(&num); |
| else |
| *ret = isnan(V_R8(&num)) || isinf(V_R8(&num)) ? 0 : (DWORD)V_R8(&num); |
| return S_OK; |
| } |
| |
| BSTR int_to_bstr(int i) |
| { |
| WCHAR buf[12], *p; |
| BOOL neg = FALSE; |
| |
| if(!i) { |
| static const WCHAR zeroW[] = {'0',0}; |
| return SysAllocString(zeroW); |
| } |
| |
| if(i < 0) { |
| neg = TRUE; |
| i = -i; |
| } |
| |
| p = buf + sizeof(buf)/sizeof(*buf)-1; |
| *p-- = 0; |
| while(i) { |
| *p-- = i%10 + '0'; |
| i /= 10; |
| } |
| |
| if(neg) |
| *p = '-'; |
| else |
| p++; |
| |
| return SysAllocString(p); |
| } |
| |
| HRESULT double_to_bstr(double n, BSTR *str) |
| { |
| const WCHAR NaNW[] = {'N','a','N',0}; |
| const WCHAR InfinityW[] = {'-','I','n','f','i','n','i','t','y',0}; |
| |
| if(isnan(n)) { |
| *str = SysAllocString(NaNW); |
| }else if(isinf(n)) { |
| *str = SysAllocString(n<0 ? InfinityW : InfinityW+1); |
| }else { |
| VARIANT strv, v; |
| HRESULT hres; |
| |
| V_VT(&v) = VT_R8; |
| V_R8(&v) = n; |
| V_VT(&strv) = VT_EMPTY; |
| hres = VariantChangeTypeEx(&strv, &v, MAKELCID(MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),SORT_DEFAULT), 0, VT_BSTR); |
| if(FAILED(hres)) |
| return hres; |
| |
| *str = V_BSTR(&strv); |
| } |
| |
| return *str ? S_OK : E_OUTOFMEMORY; |
| } |
| |
| /* ECMA-262 3rd Edition 9.8 */ |
| HRESULT to_string(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, BSTR *str) |
| { |
| const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0}; |
| const WCHAR nullW[] = {'n','u','l','l',0}; |
| const WCHAR trueW[] = {'t','r','u','e',0}; |
| const WCHAR falseW[] = {'f','a','l','s','e',0}; |
| |
| switch(V_VT(v)) { |
| case VT_EMPTY: |
| *str = SysAllocString(undefinedW); |
| break; |
| case VT_NULL: |
| *str = SysAllocString(nullW); |
| break; |
| case VT_I4: |
| *str = int_to_bstr(V_I4(v)); |
| break; |
| case VT_R8: |
| return double_to_bstr(V_R8(v), str); |
| case VT_BSTR: |
| *str = SysAllocString(V_BSTR(v)); |
| break; |
| case VT_DISPATCH: { |
| VARIANT prim; |
| HRESULT hres; |
| |
| hres = to_primitive(ctx, v, ei, &prim, HINT_STRING); |
| if(FAILED(hres)) |
| return hres; |
| |
| hres = to_string(ctx, &prim, ei, str); |
| VariantClear(&prim); |
| return hres; |
| } |
| case VT_BOOL: |
| *str = SysAllocString(V_BOOL(v) ? trueW : falseW); |
| break; |
| default: |
| FIXME("unsupported vt %d\n", V_VT(v)); |
| return E_NOTIMPL; |
| } |
| |
| return *str ? S_OK : E_OUTOFMEMORY; |
| } |
| |
| /* ECMA-262 3rd Edition 9.9 */ |
| HRESULT to_object(script_ctx_t *ctx, VARIANT *v, IDispatch **disp) |
| { |
| jsdisp_t *dispex; |
| HRESULT hres; |
| |
| switch(V_VT(v)) { |
| case VT_BSTR: |
| hres = create_string(ctx, V_BSTR(v), SysStringLen(V_BSTR(v)), &dispex); |
| if(FAILED(hres)) |
| return hres; |
| |
| *disp = to_disp(dispex); |
| break; |
| case VT_I4: |
| case VT_R8: |
| hres = create_number(ctx, v, &dispex); |
| if(FAILED(hres)) |
| return hres; |
| |
| *disp = to_disp(dispex); |
| break; |
| case VT_DISPATCH: |
| if(V_DISPATCH(v)) { |
| IDispatch_AddRef(V_DISPATCH(v)); |
| *disp = V_DISPATCH(v); |
| }else { |
| jsdisp_t *obj; |
| |
| hres = create_object(ctx, NULL, &obj); |
| if(FAILED(hres)) |
| return hres; |
| |
| *disp = to_disp(obj); |
| } |
| break; |
| case VT_BOOL: |
| hres = create_bool(ctx, V_BOOL(v), &dispex); |
| if(FAILED(hres)) |
| return hres; |
| |
| *disp = to_disp(dispex); |
| break; |
| case VT_ARRAY|VT_VARIANT: |
| hres = create_vbarray(ctx, V_ARRAY(v), &dispex); |
| if(FAILED(hres)) |
| return hres; |
| |
| *disp = to_disp(dispex); |
| break; |
| default: |
| FIXME("unsupported vt %d\n", V_VT(v)); |
| return E_NOTIMPL; |
| } |
| |
| return S_OK; |
| } |
