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70 lines
2.2 KiB

/*
* Date/time.
*/
#include "duk_internal.h"
DUK_EXTERNAL duk_double_t duk_get_now(duk_context *ctx) {
return ((duk_double_t) DUK_USE_DATE_GET_NOW((ctx)));
}
DUK_EXTERNAL void duk_time_to_components(duk_context *ctx, duk_double_t timeval, duk_time_components *comp) {
duk_int_t parts[DUK_DATE_IDX_NUM_PARTS];
duk_double_t dparts[DUK_DATE_IDX_NUM_PARTS];
duk_uint_t flags;
DUK_ASSERT(ctx != NULL);
DUK_ASSERT(comp != NULL); /* XXX: or check? */
DUK_UNREF(ctx);
/* Convert as one-based, but change month to zero-based to match the
* Ecmascript Date built-in behavior 1:1.
*/
flags = DUK_DATE_FLAG_ONEBASED | DUK_DATE_FLAG_NAN_TO_ZERO;
duk_bi_date_timeval_to_parts(timeval, parts, dparts, flags);
DUK_ASSERT(dparts[DUK_DATE_IDX_MONTH] >= 1.0 && dparts[DUK_DATE_IDX_MONTH] <= 12.0);
comp->year = dparts[DUK_DATE_IDX_YEAR];
comp->month = dparts[DUK_DATE_IDX_MONTH] - 1.0;
comp->day = dparts[DUK_DATE_IDX_DAY];
comp->hours = dparts[DUK_DATE_IDX_HOUR];
comp->minutes = dparts[DUK_DATE_IDX_MINUTE];
comp->seconds = dparts[DUK_DATE_IDX_SECOND];
comp->milliseconds = dparts[DUK_DATE_IDX_MILLISECOND];
comp->weekday = dparts[DUK_DATE_IDX_WEEKDAY];
}
DUK_EXTERNAL duk_double_t duk_components_to_time(duk_context *ctx, duk_time_components *comp) {
duk_double_t d;
duk_double_t dparts[DUK_DATE_IDX_NUM_PARTS];
duk_uint_t flags;
DUK_ASSERT(ctx != NULL);
DUK_ASSERT(comp != NULL); /* XXX: or check? */
DUK_UNREF(ctx);
/* Match Date constructor behavior (with UTC time). Month is given
* as zero-based. Day-of-month is given as one-based so normalize
* it to zero-based as the internal conversion helpers expects all
* components to be zero-based.
*/
flags = 0;
/* XXX: expensive conversion; use array format in API instead, or unify
* time provider and time API to use same struct?
*/
dparts[DUK_DATE_IDX_YEAR] = comp->year;
dparts[DUK_DATE_IDX_MONTH] = comp->month;
dparts[DUK_DATE_IDX_DAY] = comp->day - 1.0;
dparts[DUK_DATE_IDX_HOUR] = comp->hours;
dparts[DUK_DATE_IDX_MINUTE] = comp->minutes;
dparts[DUK_DATE_IDX_SECOND] = comp->seconds;
dparts[DUK_DATE_IDX_MILLISECOND] = comp->milliseconds;
dparts[DUK_DATE_IDX_WEEKDAY] = 0; /* ignored */
d = duk_bi_date_get_timeval_from_dparts(dparts, flags);
return d;
}