/* * 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 #include #include "jscript.h" #include "ntsecapi.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(jscript); /* ECMA-262 3rd Edition 15.8.2.12 */ static HRESULT Math_abs(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double d; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &d); if(FAILED(hres)) return hres; if(r) *r = jsval_number(d < 0.0 ? -d : d); return S_OK; } static HRESULT Math_acos(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(x < -1.0 || x > 1.0 ? NAN : acos(x)); return S_OK; } static HRESULT Math_asin(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(x < -1.0 || x > 1.0 ? NAN : asin(x)); return S_OK; } static HRESULT Math_atan(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(atan(x)); return S_OK; } static HRESULT Math_atan2(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x, y; HRESULT hres; TRACE("\n"); if(argc<2) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &y); if(FAILED(hres)) return hres; hres = to_number(ctx, argv[1], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(atan2(y, x)); return S_OK; } /* ECMA-262 3rd Edition 15.8.2.6 */ static HRESULT Math_ceil(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(ceil(x)); return S_OK; } static HRESULT Math_cos(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(cos(x)); return S_OK; } static HRESULT Math_exp(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(exp(x)); return S_OK; } static HRESULT Math_floor(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(floor(x)); return S_OK; } static HRESULT Math_log(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(x < -0.0 ? NAN : 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, unsigned argc, jsval_t *argv, jsval_t *r) { DOUBLE max, d; DWORD i; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(-INFINITY); return S_OK; } hres = to_number(ctx, argv[0], &max); if(FAILED(hres)) return hres; for(i=1; i < argc; i++) { hres = to_number(ctx, argv[i], &d); if(FAILED(hres)) return hres; if(d > max || isnan(d)) max = d; } if(r) *r = jsval_number(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, unsigned argc, jsval_t *argv, jsval_t *r) { DOUBLE min, d; DWORD i; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(INFINITY); return S_OK; } hres = to_number(ctx, argv[0], &min); if(FAILED(hres)) return hres; for(i=1; i < argc; i++) { hres = to_number(ctx, argv[i], &d); if(FAILED(hres)) return hres; if(d < min || isnan(d)) min = d; } if(r) *r = jsval_number(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, unsigned argc, jsval_t *argv, jsval_t *r) { double x, y; HRESULT hres; TRACE("\n"); if(argc < 2) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; hres = to_number(ctx, argv[1], &y); if(FAILED(hres)) return hres; if(r) *r = jsval_number(pow(x, 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, unsigned argc, jsval_t *argv, jsval_t *r) { UINT x; TRACE("\n"); if(!RtlGenRandom(&x, sizeof(x))) return E_UNEXPECTED; if(r) *r = jsval_number((double)x/(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, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(floor(x+0.5)); return S_OK; } static HRESULT Math_sin(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(sin(x)); return S_OK; } static HRESULT Math_sqrt(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(sqrt(x)); return S_OK; } static HRESULT Math_tan(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { double x; HRESULT hres; TRACE("\n"); if(!argc) { if(r) *r = jsval_number(NAN); return S_OK; } hres = to_number(ctx, argv[0], &x); if(FAILED(hres)) return hres; if(r) *r = jsval_number(tan(x)); return S_OK; } static const builtin_prop_t Math_props[] = { {L"abs", Math_abs, PROPF_METHOD|1}, {L"acos", Math_acos, PROPF_METHOD|1}, {L"asin", Math_asin, PROPF_METHOD|1}, {L"atan", Math_atan, PROPF_METHOD|1}, {L"atan2", Math_atan2, PROPF_METHOD|2}, {L"ceil", Math_ceil, PROPF_METHOD|1}, {L"cos", Math_cos, PROPF_METHOD|1}, {L"exp", Math_exp, PROPF_METHOD|1}, {L"floor", Math_floor, PROPF_METHOD|1}, {L"log", Math_log, PROPF_METHOD|1}, {L"max", Math_max, PROPF_METHOD|2}, {L"min", Math_min, PROPF_METHOD|2}, {L"pow", Math_pow, PROPF_METHOD|2}, {L"random", Math_random, PROPF_METHOD}, {L"round", Math_round, PROPF_METHOD|1}, {L"sin", Math_sin, PROPF_METHOD|1}, {L"sqrt", Math_sqrt, PROPF_METHOD|1}, {L"tan", Math_tan, PROPF_METHOD|1} }; static const builtin_info_t Math_info = { JSCLASS_MATH, NULL, ARRAY_SIZE(Math_props), Math_props, NULL, NULL }; HRESULT create_math(script_ctx_t *ctx, jsdisp_t **ret) { jsdisp_t *math; unsigned i; HRESULT hres; struct { const WCHAR *name; DOUBLE val; }constants[] = { {L"E", M_E}, /* ECMA-262 3rd Edition 15.8.1.1 */ {L"LN10", M_LN10}, /* ECMA-262 3rd Edition 15.8.1.2 */ {L"LN2", M_LN2}, /* ECMA-262 3rd Edition 15.8.1.3 */ {L"LOG2E", M_LOG2E}, /* ECMA-262 3rd Edition 15.8.1.4 */ {L"LOG10E", M_LOG10E}, /* ECMA-262 3rd Edition 15.8.1.5 */ {L"PI", M_PI}, /* ECMA-262 3rd Edition 15.8.1.6 */ {L"SQRT1_2", M_SQRT1_2}, /* ECMA-262 3rd Edition 15.8.1.7 */ {L"SQRT2", 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; } for(i=0; i < ARRAY_SIZE(constants); i++) { hres = jsdisp_define_data_property(math, constants[i].name, 0, jsval_number(constants[i].val)); if(FAILED(hres)) { jsdisp_release(math); return hres; } } *ret = math; return S_OK; }