/* * Copyright 2008 Jacek Caban for CodeWeavers * Copyright 2009 Piotr Caban * * 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 <limits.h> #include "jscript.h" #include "ntsecapi.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(jscript); static const WCHAR EW[] = {'E',0}; static const WCHAR LOG2EW[] = {'L','O','G','2','E',0}; static const WCHAR LOG10EW[] = {'L','O','G','1','0','E',0}; static const WCHAR LN2W[] = {'L','N','2',0}; static const WCHAR LN10W[] = {'L','N','1','0',0}; static const WCHAR PIW[] = {'P','I',0}; static const WCHAR SQRT2W[] = {'S','Q','R','T','2',0}; static const WCHAR SQRT1_2W[] = {'S','Q','R','T','1','_','2',0}; static const WCHAR absW[] = {'a','b','s',0}; static const WCHAR acosW[] = {'a','c','o','s',0}; static const WCHAR asinW[] = {'a','s','i','n',0}; static const WCHAR atanW[] = {'a','t','a','n',0}; static const WCHAR atan2W[] = {'a','t','a','n','2',0}; static const WCHAR ceilW[] = {'c','e','i','l',0}; static const WCHAR cosW[] = {'c','o','s',0}; static const WCHAR expW[] = {'e','x','p',0}; static const WCHAR floorW[] = {'f','l','o','o','r',0}; static const WCHAR logW[] = {'l','o','g',0}; static const WCHAR maxW[] = {'m','a','x',0}; static const WCHAR minW[] = {'m','i','n',0}; static const WCHAR powW[] = {'p','o','w',0}; static const WCHAR randomW[] = {'r','a','n','d','o','m',0}; static const WCHAR roundW[] = {'r','o','u','n','d',0}; static const WCHAR sinW[] = {'s','i','n',0}; static const WCHAR sqrtW[] = {'s','q','r','t',0}; static const WCHAR tanW[] = {'t','a','n',0}; /* ECMA-262 3rd Edition 15.8.2.12 */ static HRESULT Math_abs(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; DOUBLE d; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; d = num_val(&v); if(retv) num_set_val(retv, d < 0.0 ? -d : d); return S_OK; } static HRESULT Math_acos(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) { DOUBLE x = num_val(&v); if(x < -1.0 || x > 1.0) num_set_nan(retv); else num_set_val(retv, acos(x)); } return S_OK; } static HRESULT Math_asin(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) { DOUBLE x = num_val(&v); if(x < -1.0 || x > 1.0) num_set_nan(retv); else num_set_val(retv, asin(x)); } return S_OK; } static HRESULT Math_atan(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) num_set_val(retv, atan(num_val(&v))); return S_OK; } static HRESULT Math_atan2(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v1, v2; HRESULT hres; TRACE("\n"); if(arg_cnt(dp)<2) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v1); if(FAILED(hres)) return hres; hres = to_number(ctx, get_arg(dp, 1), ei, &v2); if(FAILED(hres)) return hres; if(retv) num_set_val(retv, atan2(num_val(&v1), num_val(&v2))); return S_OK; } /* ECMA-262 3rd Edition 15.8.2.6 */ static HRESULT Math_ceil(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) num_set_val(retv, ceil(num_val(&v))); return S_OK; } static HRESULT Math_cos(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) num_set_val(retv, cos(num_val(&v))); return S_OK; } static HRESULT Math_exp(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) num_set_val(retv, exp(num_val(&v))); return S_OK; } static HRESULT Math_floor(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) num_set_val(retv, floor(num_val(&v))); return S_OK; } static HRESULT Math_log(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) { DOUBLE x = num_val(&v); if(x < -0.0) num_set_nan(retv); else num_set_val(retv, log(x)); } return S_OK; } /* ECMA-262 3rd Edition 15.8.2.11 */ static HRESULT Math_max(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { DOUBLE max, d; VARIANT v; DWORD i; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_inf(retv, FALSE); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; max = num_val(&v); for(i=1; i < arg_cnt(dp); i++) { hres = to_number(ctx, get_arg(dp, i), ei, &v); if(FAILED(hres)) return hres; d = num_val(&v); if(d > max || isnan(d)) max = d; } if(retv) num_set_val(retv, max); return S_OK; } /* ECMA-262 3rd Edition 15.8.2.12 */ static HRESULT Math_min(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { DOUBLE min, d; VARIANT v; DWORD i; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_inf(retv, TRUE); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; min = num_val(&v); for(i=1; i < arg_cnt(dp); i++) { hres = to_number(ctx, get_arg(dp, i), ei, &v); if(FAILED(hres)) return hres; d = num_val(&v); if(d < min || isnan(d)) min = d; } if(retv) num_set_val(retv, min); return S_OK; } /* ECMA-262 3rd Edition 15.8.2.13 */ static HRESULT Math_pow(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT x, y; HRESULT hres; TRACE("\n"); if(arg_cnt(dp) < 2) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &x); if(FAILED(hres)) return hres; hres = to_number(ctx, get_arg(dp, 1), ei, &y); if(FAILED(hres)) return hres; if(retv) num_set_val(retv, pow(num_val(&x), num_val(&y))); return S_OK; } /* ECMA-262 3rd Edition 15.8.2.14 */ static HRESULT Math_random(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { UINT r; TRACE("\n"); if(!RtlGenRandom(&r, sizeof(r))) return E_UNEXPECTED; if(retv) num_set_val(retv, (DOUBLE)r/(DOUBLE)UINT_MAX); return S_OK; } /* ECMA-262 3rd Edition 15.8.2.15 */ static HRESULT Math_round(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) num_set_val(retv, floor(num_val(&v)+0.5)); return S_OK; } static HRESULT Math_sin(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) num_set_val(retv, sin(num_val(&v))); return S_OK; } static HRESULT Math_sqrt(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) num_set_val(retv, sqrt(num_val(&v))); return S_OK; } static HRESULT Math_tan(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) { VARIANT v; HRESULT hres; TRACE("\n"); if(!arg_cnt(dp)) { if(retv) num_set_nan(retv); return S_OK; } hres = to_number(ctx, get_arg(dp, 0), ei, &v); if(FAILED(hres)) return hres; if(retv) num_set_val(retv, tan(num_val(&v))); return S_OK; } static const builtin_prop_t Math_props[] = { {absW, Math_abs, PROPF_METHOD|1}, {acosW, Math_acos, PROPF_METHOD|1}, {asinW, Math_asin, PROPF_METHOD|1}, {atanW, Math_atan, PROPF_METHOD|1}, {atan2W, Math_atan2, PROPF_METHOD|2}, {ceilW, Math_ceil, PROPF_METHOD|1}, {cosW, Math_cos, PROPF_METHOD|1}, {expW, Math_exp, PROPF_METHOD|1}, {floorW, Math_floor, PROPF_METHOD|1}, {logW, Math_log, PROPF_METHOD|1}, {maxW, Math_max, PROPF_METHOD|2}, {minW, Math_min, PROPF_METHOD|2}, {powW, Math_pow, PROPF_METHOD|2}, {randomW, Math_random, PROPF_METHOD}, {roundW, Math_round, PROPF_METHOD|1}, {sinW, Math_sin, PROPF_METHOD|1}, {sqrtW, Math_sqrt, PROPF_METHOD|1}, {tanW, Math_tan, PROPF_METHOD|1} }; static const builtin_info_t Math_info = { JSCLASS_MATH, {NULL, NULL, 0}, sizeof(Math_props)/sizeof(*Math_props), Math_props, NULL, NULL }; HRESULT create_math(script_ctx_t *ctx, jsdisp_t **ret) { jsdisp_t *math; unsigned i; VARIANT v; HRESULT hres; struct { const WCHAR *name; DOUBLE val; }constants[] = { {EW, M_E}, /* ECMA-262 3rd Edition 15.8.1.1 */ {LN10W, M_LN10}, /* ECMA-262 3rd Edition 15.8.1.2 */ {LN2W, M_LN2}, /* ECMA-262 3rd Edition 15.8.1.3 */ {LOG2EW, M_LOG2E}, /* ECMA-262 3rd Edition 15.8.1.4 */ {LOG10EW, M_LOG10E}, /* ECMA-262 3rd Edition 15.8.1.5 */ {PIW, M_PI}, /* ECMA-262 3rd Edition 15.8.1.6 */ {SQRT1_2W, M_SQRT1_2}, /* ECMA-262 3rd Edition 15.8.1.7 */ {SQRT2W, M_SQRT2}, /* ECMA-262 3rd Edition 15.8.1.8 */ }; math = heap_alloc_zero(sizeof(jsdisp_t)); if(!math) return E_OUTOFMEMORY; hres = init_dispex_from_constr(math, ctx, &Math_info, ctx->object_constr); if(FAILED(hres)) { heap_free(math); return hres; } V_VT(&v) = VT_R8; for(i=0; i < sizeof(constants)/sizeof(*constants); i++) { V_R8(&v) = constants[i].val; hres = jsdisp_propput_const(math, constants[i].name, &v); if(FAILED(hres)) { jsdisp_release(math); return hres; } } *ret = math; return S_OK; }