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"
28 #include "wine/debug.h"
30 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
32 static const WCHAR EW[] = {'E',0};
33 static const WCHAR LOG2EW[] = {'L','O','G','2','E',0};
34 static const WCHAR LOG10EW[] = {'L','O','G','1','0','E',0};
35 static const WCHAR LN2W[] = {'L','N','2',0};
36 static const WCHAR LN10W[] = {'L','N','1','0',0};
37 static const WCHAR PIW[] = {'P','I',0};
38 static const WCHAR SQRT2W[] = {'S','Q','R','T','2',0};
39 static const WCHAR SQRT1_2W[] = {'S','Q','R','T','1','_','2',0};
40 static const WCHAR absW[] = {'a','b','s',0};
41 static const WCHAR acosW[] = {'a','c','o','s',0};
42 static const WCHAR asinW[] = {'a','s','i','n',0};
43 static const WCHAR atanW[] = {'a','t','a','n',0};
44 static const WCHAR atan2W[] = {'a','t','a','n','2',0};
45 static const WCHAR ceilW[] = {'c','e','i','l',0};
46 static const WCHAR cosW[] = {'c','o','s',0};
47 static const WCHAR expW[] = {'e','x','p',0};
48 static const WCHAR floorW[] = {'f','l','o','o','r',0};
49 static const WCHAR logW[] = {'l','o','g',0};
50 static const WCHAR maxW[] = {'m','a','x',0};
51 static const WCHAR minW[] = {'m','i','n',0};
52 static const WCHAR powW[] = {'p','o','w',0};
53 static const WCHAR randomW[] = {'r','a','n','d','o','m',0};
54 static const WCHAR roundW[] = {'r','o','u','n','d',0};
55 static const WCHAR sinW[] = {'s','i','n',0};
56 static const WCHAR sqrtW[] = {'s','q','r','t',0};
57 static const WCHAR tanW[] = {'t','a','n',0};
59 static HRESULT math_constant(DOUBLE val, WORD flags, VARIANT *retv)
62 case DISPATCH_PROPERTYGET:
66 case DISPATCH_PROPERTYPUT:
70 FIXME("unhandled flags %x\n", flags);
74 /* ECMA-262 3rd Edition 15.8.1.1 */
75 static HRESULT Math_E(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
76 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
79 return math_constant(M_E, flags, retv);
82 /* ECMA-262 3rd Edition 15.8.1.4 */
83 static HRESULT Math_LOG2E(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
84 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
87 return math_constant(M_LOG2E, flags, retv);
90 /* ECMA-262 3rd Edition 15.8.1.4 */
91 static HRESULT Math_LOG10E(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
92 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
95 return math_constant(M_LOG10E, flags, retv);
98 static HRESULT Math_LN2(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
99 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
102 return math_constant(M_LN2, flags, retv);
105 static HRESULT Math_LN10(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
106 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
109 return math_constant(M_LN10, flags, retv);
112 /* ECMA-262 3rd Edition 15.8.1.6 */
113 static HRESULT Math_PI(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
114 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
117 return math_constant(M_PI, flags, retv);
120 static HRESULT Math_SQRT2(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
121 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
124 return math_constant(M_SQRT2, flags, retv);
127 static HRESULT Math_SQRT1_2(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
128 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
131 return math_constant(M_SQRT1_2, flags, retv);
134 /* ECMA-262 3rd Edition 15.8.2.12 */
135 static HRESULT Math_abs(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
136 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
150 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
156 num_set_val(retv, d < 0.0 ? -d : d);
160 static HRESULT Math_acos(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
161 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
169 if(retv) num_set_nan(retv);
173 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
177 if(retv) num_set_val(retv, acos(num_val(&v)));
181 static HRESULT Math_asin(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
182 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
190 if(retv) num_set_nan(retv);
194 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
198 if(retv) num_set_val(retv, asin(num_val(&v)));
202 static HRESULT Math_atan(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
203 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
211 if(retv) num_set_nan(retv);
215 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
219 if(retv) num_set_val(retv, atan(num_val(&v)));
223 static HRESULT Math_atan2(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
224 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
232 if(retv) num_set_nan(retv);
236 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v1);
240 hres = to_number(dispex->ctx, get_arg(dp, 1), ei, &v2);
244 if(retv) num_set_val(retv, atan2(num_val(&v1), num_val(&v2)));
248 /* ECMA-262 3rd Edition 15.8.2.6 */
249 static HRESULT Math_ceil(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
250 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
263 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
268 num_set_val(retv, ceil(num_val(&v)));
272 static HRESULT Math_cos(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
273 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
281 if(retv) num_set_nan(retv);
285 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
289 if(retv) num_set_val(retv, cos(num_val(&v)));
293 static HRESULT Math_exp(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
294 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
302 if(retv) num_set_nan(retv);
306 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
310 if(retv) num_set_val(retv, exp(num_val(&v)));
314 static HRESULT Math_floor(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
315 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
328 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
333 num_set_val(retv, floor(num_val(&v)));
337 static HRESULT Math_log(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
338 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
351 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
356 num_set_val(retv, log(num_val(&v)));
360 /* ECMA-262 3rd Edition 15.8.2.11 */
361 static HRESULT Math_max(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
362 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
373 num_set_inf(retv, FALSE);
377 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
382 for(i=1; i < arg_cnt(dp); i++) {
383 hres = to_number(dispex->ctx, get_arg(dp, i), ei, &v);
388 if(d > max || isnan(d))
393 num_set_val(retv, max);
397 /* ECMA-262 3rd Edition 15.8.2.12 */
398 static HRESULT Math_min(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
399 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
410 num_set_inf(retv, TRUE);
414 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
419 for(i=1; i < arg_cnt(dp); i++) {
420 hres = to_number(dispex->ctx, get_arg(dp, i), ei, &v);
425 if(d < min || isnan(d))
430 num_set_val(retv, min);
434 /* ECMA-262 3rd Edition 15.8.2.13 */
435 static HRESULT Math_pow(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
436 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
443 if(arg_cnt(dp) < 2) {
444 if(retv) num_set_nan(retv);
448 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &x);
452 hres = to_number(dispex->ctx, get_arg(dp, 1), ei, &y);
457 num_set_val(retv, pow(num_val(&x), num_val(&y)));
461 /* ECMA-262 3rd Edition 15.8.2.14 */
462 static HRESULT Math_random(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
463 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
469 if(!RtlGenRandom(&r, sizeof(r)))
473 num_set_val(retv, (DOUBLE)r/(DOUBLE)UINT_MAX);
478 /* ECMA-262 3rd Edition 15.8.2.15 */
479 static HRESULT Math_round(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
480 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
492 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
497 num_set_val(retv, floor(num_val(&v)+0.5));
501 static HRESULT Math_sin(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
502 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
510 if(retv) num_set_nan(retv);
514 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
518 if(retv) num_set_val(retv, sin(num_val(&v)));
522 static HRESULT Math_sqrt(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
523 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
531 if(retv) num_set_nan(retv);
535 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
539 if(retv) num_set_val(retv, sqrt(num_val(&v)));
543 static HRESULT Math_tan(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
544 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
552 if(retv) num_set_nan(retv);
556 hres = to_number(dispex->ctx, get_arg(dp, 0), ei, &v);
560 if(retv) num_set_val(retv, tan(num_val(&v)));
564 static const builtin_prop_t Math_props[] = {
566 {LN10W, Math_LN10, 0},
568 {LOG10EW, Math_LOG10E, 0},
569 {LOG2EW, Math_LOG2E, 0},
571 {SQRT1_2W, Math_SQRT1_2, 0},
572 {SQRT2W, Math_SQRT2, 0},
573 {absW, Math_abs, PROPF_METHOD},
574 {acosW, Math_acos, PROPF_METHOD},
575 {asinW, Math_asin, PROPF_METHOD},
576 {atanW, Math_atan, PROPF_METHOD},
577 {atan2W, Math_atan2, PROPF_METHOD},
578 {ceilW, Math_ceil, PROPF_METHOD},
579 {cosW, Math_cos, PROPF_METHOD},
580 {expW, Math_exp, PROPF_METHOD},
581 {floorW, Math_floor, PROPF_METHOD},
582 {logW, Math_log, PROPF_METHOD},
583 {maxW, Math_max, PROPF_METHOD},
584 {minW, Math_min, PROPF_METHOD},
585 {powW, Math_pow, PROPF_METHOD},
586 {randomW, Math_random, PROPF_METHOD},
587 {roundW, Math_round, PROPF_METHOD},
588 {sinW, Math_sin, PROPF_METHOD},
589 {sqrtW, Math_sqrt, PROPF_METHOD},
590 {tanW, Math_tan, PROPF_METHOD}
593 static const builtin_info_t Math_info = {
596 sizeof(Math_props)/sizeof(*Math_props),
602 HRESULT create_math(script_ctx_t *ctx, DispatchEx **ret)
604 return create_dispex(ctx, &Math_info, NULL, ret);