2 * Copyright 2008 Jacek Caban for CodeWeavers
3 * Copyright 2009 Piotr Caban
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "wine/port.h"
29 #include "wine/debug.h"
31 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
33 static const WCHAR EW[] = {'E',0};
34 static const WCHAR LOG2EW[] = {'L','O','G','2','E',0};
35 static const WCHAR LOG10EW[] = {'L','O','G','1','0','E',0};
36 static const WCHAR LN2W[] = {'L','N','2',0};
37 static const WCHAR LN10W[] = {'L','N','1','0',0};
38 static const WCHAR PIW[] = {'P','I',0};
39 static const WCHAR SQRT2W[] = {'S','Q','R','T','2',0};
40 static const WCHAR SQRT1_2W[] = {'S','Q','R','T','1','_','2',0};
41 static const WCHAR absW[] = {'a','b','s',0};
42 static const WCHAR acosW[] = {'a','c','o','s',0};
43 static const WCHAR asinW[] = {'a','s','i','n',0};
44 static const WCHAR atanW[] = {'a','t','a','n',0};
45 static const WCHAR atan2W[] = {'a','t','a','n','2',0};
46 static const WCHAR ceilW[] = {'c','e','i','l',0};
47 static const WCHAR cosW[] = {'c','o','s',0};
48 static const WCHAR expW[] = {'e','x','p',0};
49 static const WCHAR floorW[] = {'f','l','o','o','r',0};
50 static const WCHAR logW[] = {'l','o','g',0};
51 static const WCHAR maxW[] = {'m','a','x',0};
52 static const WCHAR minW[] = {'m','i','n',0};
53 static const WCHAR powW[] = {'p','o','w',0};
54 static const WCHAR randomW[] = {'r','a','n','d','o','m',0};
55 static const WCHAR roundW[] = {'r','o','u','n','d',0};
56 static const WCHAR sinW[] = {'s','i','n',0};
57 static const WCHAR sqrtW[] = {'s','q','r','t',0};
58 static const WCHAR tanW[] = {'t','a','n',0};
60 /* ECMA-262 3rd Edition 15.8.2.12 */
61 static HRESULT Math_abs(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
62 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
76 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
82 num_set_val(retv, d < 0.0 ? -d : d);
86 static HRESULT Math_acos(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
87 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
95 if(retv) num_set_nan(retv);
99 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
104 DOUBLE x = num_val(&v);
105 if(x < -1.0 || x > 1.0)
108 num_set_val(retv, acos(x));
113 static HRESULT Math_asin(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
114 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
122 if(retv) num_set_nan(retv);
126 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
131 DOUBLE x = num_val(&v);
132 if(x < -1.0 || x > 1.0)
135 num_set_val(retv, asin(x));
140 static HRESULT Math_atan(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
141 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
149 if(retv) num_set_nan(retv);
153 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
157 if(retv) num_set_val(retv, atan(num_val(&v)));
161 static HRESULT Math_atan2(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
162 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
170 if(retv) num_set_nan(retv);
174 hres = to_number(ctx, get_arg(dp, 0), ei, &v1);
178 hres = to_number(ctx, get_arg(dp, 1), ei, &v2);
182 if(retv) num_set_val(retv, atan2(num_val(&v1), num_val(&v2)));
186 /* ECMA-262 3rd Edition 15.8.2.6 */
187 static HRESULT Math_ceil(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
188 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
201 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
206 num_set_val(retv, ceil(num_val(&v)));
210 static HRESULT Math_cos(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
211 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
219 if(retv) num_set_nan(retv);
223 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
227 if(retv) num_set_val(retv, cos(num_val(&v)));
231 static HRESULT Math_exp(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
232 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
240 if(retv) num_set_nan(retv);
244 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
248 if(retv) num_set_val(retv, exp(num_val(&v)));
252 static HRESULT Math_floor(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
253 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
266 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
271 num_set_val(retv, floor(num_val(&v)));
275 static HRESULT Math_log(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
276 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
289 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
294 DOUBLE x = num_val(&v);
298 num_set_val(retv, log(x));
303 /* ECMA-262 3rd Edition 15.8.2.11 */
304 static HRESULT Math_max(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
305 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
316 num_set_inf(retv, FALSE);
320 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
325 for(i=1; i < arg_cnt(dp); i++) {
326 hres = to_number(ctx, get_arg(dp, i), ei, &v);
331 if(d > max || isnan(d))
336 num_set_val(retv, max);
340 /* ECMA-262 3rd Edition 15.8.2.12 */
341 static HRESULT Math_min(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
342 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
353 num_set_inf(retv, TRUE);
357 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
362 for(i=1; i < arg_cnt(dp); i++) {
363 hres = to_number(ctx, get_arg(dp, i), ei, &v);
368 if(d < min || isnan(d))
373 num_set_val(retv, min);
377 /* ECMA-262 3rd Edition 15.8.2.13 */
378 static HRESULT Math_pow(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
379 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
386 if(arg_cnt(dp) < 2) {
387 if(retv) num_set_nan(retv);
391 hres = to_number(ctx, get_arg(dp, 0), ei, &x);
395 hres = to_number(ctx, get_arg(dp, 1), ei, &y);
400 num_set_val(retv, pow(num_val(&x), num_val(&y)));
404 /* ECMA-262 3rd Edition 15.8.2.14 */
405 static HRESULT Math_random(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
406 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
412 if(!RtlGenRandom(&r, sizeof(r)))
416 num_set_val(retv, (DOUBLE)r/(DOUBLE)UINT_MAX);
421 /* ECMA-262 3rd Edition 15.8.2.15 */
422 static HRESULT Math_round(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
423 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
435 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
440 num_set_val(retv, floor(num_val(&v)+0.5));
444 static HRESULT Math_sin(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
445 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
453 if(retv) num_set_nan(retv);
457 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
461 if(retv) num_set_val(retv, sin(num_val(&v)));
465 static HRESULT Math_sqrt(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
466 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
474 if(retv) num_set_nan(retv);
478 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
482 if(retv) num_set_val(retv, sqrt(num_val(&v)));
486 static HRESULT Math_tan(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp,
487 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
495 if(retv) num_set_nan(retv);
499 hres = to_number(ctx, get_arg(dp, 0), ei, &v);
503 if(retv) num_set_val(retv, tan(num_val(&v)));
507 static const builtin_prop_t Math_props[] = {
508 {absW, Math_abs, PROPF_METHOD|1},
509 {acosW, Math_acos, PROPF_METHOD|1},
510 {asinW, Math_asin, PROPF_METHOD|1},
511 {atanW, Math_atan, PROPF_METHOD|1},
512 {atan2W, Math_atan2, PROPF_METHOD|2},
513 {ceilW, Math_ceil, PROPF_METHOD|1},
514 {cosW, Math_cos, PROPF_METHOD|1},
515 {expW, Math_exp, PROPF_METHOD|1},
516 {floorW, Math_floor, PROPF_METHOD|1},
517 {logW, Math_log, PROPF_METHOD|1},
518 {maxW, Math_max, PROPF_METHOD|2},
519 {minW, Math_min, PROPF_METHOD|2},
520 {powW, Math_pow, PROPF_METHOD|2},
521 {randomW, Math_random, PROPF_METHOD},
522 {roundW, Math_round, PROPF_METHOD|1},
523 {sinW, Math_sin, PROPF_METHOD|1},
524 {sqrtW, Math_sqrt, PROPF_METHOD|1},
525 {tanW, Math_tan, PROPF_METHOD|1}
528 static const builtin_info_t Math_info = {
531 sizeof(Math_props)/sizeof(*Math_props),
537 HRESULT create_math(script_ctx_t *ctx, jsdisp_t **ret)
548 {EW, M_E}, /* ECMA-262 3rd Edition 15.8.1.1 */
549 {LN10W, M_LN10}, /* ECMA-262 3rd Edition 15.8.1.2 */
550 {LN2W, M_LN2}, /* ECMA-262 3rd Edition 15.8.1.3 */
551 {LOG2EW, M_LOG2E}, /* ECMA-262 3rd Edition 15.8.1.4 */
552 {LOG10EW, M_LOG10E}, /* ECMA-262 3rd Edition 15.8.1.5 */
553 {PIW, M_PI}, /* ECMA-262 3rd Edition 15.8.1.6 */
554 {SQRT1_2W, M_SQRT1_2}, /* ECMA-262 3rd Edition 15.8.1.7 */
555 {SQRT2W, M_SQRT2}, /* ECMA-262 3rd Edition 15.8.1.8 */
558 math = heap_alloc_zero(sizeof(jsdisp_t));
560 return E_OUTOFMEMORY;
562 hres = init_dispex_from_constr(math, ctx, &Math_info, ctx->object_constr);
569 for(i=0; i < sizeof(constants)/sizeof(*constants); i++) {
570 V_R8(&v) = constants[i].val;
571 hres = jsdisp_propput_const(math, constants[i].name, &v);
573 jsdisp_release(math);