[njs] Date() function.
Igor Sysoev
igor at sysoev.ru
Fri Apr 8 15:49:39 UTC 2016
details: http://hg.nginx.org/njs/rev/39557c1b3088
branches:
changeset: 94:39557c1b3088
user: Igor Sysoev <igor at sysoev.ru>
date: Fri Apr 08 18:19:43 2016 +0300
description:
Date() function.
diffstat:
Makefile | 16 +
njs/njs_builtin.c | 9 +
njs/njs_date.c | 2104 ++++++++++++++++++++++++++++++++++++++++++++++
njs/njs_date.h | 25 +
njs/njs_function.h | 1 +
njs/njs_generator.c | 1 +
njs/njs_lexer_keyword.c | 1 +
njs/njs_object.c | 3 +
njs/njs_object_hash.h | 15 +
njs/njs_parser.c | 4 +
njs/njs_parser.h | 5 +-
njs/njs_vm.c | 8 +
njs/njs_vm.h | 14 +-
njs/test/njs_unit_test.c | 305 ++++++
nxt/auto/configure | 1 +
nxt/auto/time | 39 +
16 files changed, 2547 insertions(+), 4 deletions(-)
diffs (truncated from 2813 to 1000 lines):
diff -r 91543c86f412 -r 39557c1b3088 Makefile
--- a/Makefile Tue Mar 29 13:38:18 2016 +0300
+++ b/Makefile Fri Apr 08 18:19:43 2016 +0300
@@ -18,6 +18,7 @@ NXT_BUILDDIR = build
$(NXT_BUILDDIR)/njs_array.o \
$(NXT_BUILDDIR)/njs_function.o \
$(NXT_BUILDDIR)/njs_regexp.o \
+ $(NXT_BUILDDIR)/njs_date.o \
$(NXT_BUILDDIR)/njs_math.o \
$(NXT_BUILDDIR)/njs_extern.o \
$(NXT_BUILDDIR)/njs_variable.o \
@@ -48,6 +49,7 @@ NXT_BUILDDIR = build
$(NXT_BUILDDIR)/njs_array.o \
$(NXT_BUILDDIR)/njs_function.o \
$(NXT_BUILDDIR)/njs_regexp.o \
+ $(NXT_BUILDDIR)/njs_date.o \
$(NXT_BUILDDIR)/njs_math.o \
$(NXT_BUILDDIR)/njs_extern.o \
$(NXT_BUILDDIR)/njs_variable.o \
@@ -224,6 +226,20 @@ tarball:
-I$(NXT_LIB) -Injs $(NXT_PCRE_CFLAGS) \
njs/njs_regexp.c
+$(NXT_BUILDDIR)/njs_date.o: \
+ $(NXT_BUILDDIR)/libnxt.a \
+ njs/njscript.h \
+ njs/njs_vm.h \
+ njs/njs_string.h \
+ njs/njs_object.h \
+ njs/njs_function.h \
+ njs/njs_date.h \
+ njs/njs_date.c \
+
+ $(NXT_CC) -c -o $(NXT_BUILDDIR)/njs_date.o $(NXT_CFLAGS) \
+ -I$(NXT_LIB) -Injs $(NXT_PCRE_CFLAGS) \
+ njs/njs_date.c
+
$(NXT_BUILDDIR)/njs_math.o: \
$(NXT_BUILDDIR)/libnxt.a \
njs/njscript.h \
diff -r 91543c86f412 -r 39557c1b3088 njs/njs_builtin.c
--- a/njs/njs_builtin.c Tue Mar 29 13:38:18 2016 +0300
+++ b/njs/njs_builtin.c Fri Apr 08 18:19:43 2016 +0300
@@ -20,6 +20,7 @@
#include <njs_array.h>
#include <njs_function.h>
#include <njs_regexp.h>
+#include <njs_date.h>
#include <njs_math.h>
#include <string.h>
@@ -46,6 +47,7 @@ njs_builtin_objects_create(njs_vm_t *vm)
&njs_string_prototype_init,
&njs_function_prototype_init,
&njs_regexp_prototype_init,
+ &njs_date_prototype_init,
};
static const njs_object_init_t *function_init[] = {
@@ -56,6 +58,7 @@ njs_builtin_objects_create(njs_vm_t *vm)
&njs_string_constructor_init,
&njs_function_constructor_init,
&njs_regexp_constructor_init,
+ &njs_date_constructor_init,
&njs_eval_function_init,
};
@@ -70,6 +73,8 @@ njs_builtin_objects_create(njs_vm_t *vm)
{ njs_function_constructor, { 0 } },
{ njs_regexp_constructor,
{ NJS_SKIP_ARG, NJS_STRING_ARG, NJS_STRING_ARG } },
+ { njs_date_constructor, { 0 } },
+
{ njs_eval_function, { 0 } },
};
@@ -178,6 +183,10 @@ njs_builtin_objects_create(njs_vm_t *vm)
* RegExp.__proto__ -> Function_Prototype,
* RegExp_Prototype.__proto__ -> Object_Prototype,
*
+ * Date(),
+ * Date.__proto__ -> Function_Prototype,
+ * Date_Prototype.__proto__ -> Object_Prototype,
+ *
* eval(),
* eval.__proto__ -> Function_Prototype.
*/
diff -r 91543c86f412 -r 39557c1b3088 njs/njs_date.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/njs/njs_date.c Fri Apr 08 18:19:43 2016 +0300
@@ -0,0 +1,2104 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) NGINX, Inc.
+ */
+
+#include <nxt_auto_config.h>
+#include <nxt_types.h>
+#include <nxt_clang.h>
+#include <nxt_alignment.h>
+#include <nxt_stub.h>
+#include <nxt_djb_hash.h>
+#include <nxt_array.h>
+#include <nxt_lvlhsh.h>
+#include <nxt_random.h>
+#include <nxt_time.h>
+#include <nxt_malloc.h>
+#include <nxt_mem_cache_pool.h>
+#include <njscript.h>
+#include <njs_vm.h>
+#include <njs_number.h>
+#include <njs_string.h>
+#include <njs_object.h>
+#include <njs_object_hash.h>
+#include <njs_function.h>
+#include <njs_date.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/time.h>
+#include <time.h>
+
+
+/*
+ * njs_timegm() is used because
+ * Solaris lacks timegm(),
+ * FreeBSD and MacOSX timegm() cannot handle years before 1900.
+ */
+
+#define NJS_ISO_DATE_TIME_LEN sizeof("+001970-09-28T12:00:00.000Z")
+
+#define NJS_DATE_TIME_LEN \
+ sizeof("Mon Sep 28 1970 12:00:00 GMT+0600 (XXXXX)")
+
+
+static nxt_noinline double njs_date_string_parse(njs_value_t *date);
+static const u_char *njs_date_skip_week_day(const u_char *p, const u_char *end);
+static const u_char *njs_date_skip_spaces(const u_char *p, const u_char *end);
+static nxt_noinline nxt_int_t njs_date_month_parse(const u_char *p,
+ const u_char *end);
+static nxt_noinline const u_char *njs_date_time_parse(struct tm *tm,
+ const u_char *p, const u_char *end);
+static nxt_noinline nxt_int_t njs_date_gmtoff_parse(const u_char *start,
+ const u_char *end);
+static nxt_noinline const u_char *njs_date_number_parse(int *value,
+ const u_char *p, const u_char *end, size_t size);
+static int64_t njs_timegm(struct tm *tm);
+static nxt_noinline njs_ret_t njs_date_string(njs_vm_t *vm, const char *fmt,
+ double time);
+static nxt_noinline double njs_date_time(struct tm *tm, int64_t ms);
+static double njs_date_utc_time(struct tm *tm, double time);
+static njs_ret_t njs_date_prototype_to_json_continuation(njs_vm_t *vm,
+ njs_value_t *args, nxt_uint_t nargs, njs_index_t retval);
+
+
+static const njs_value_t njs_string_invalid_date = njs_string("Invalid Date");
+
+
+static nxt_noinline uint64_t
+njs_gettime(void)
+{
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
+
+ return (uint64_t) tv.tv_sec * 1000 + tv.tv_usec / 1000;
+}
+
+
+njs_ret_t
+njs_date_constructor(njs_vm_t *vm, njs_value_t *args, nxt_uint_t nargs,
+ njs_index_t unused)
+{
+ double num;
+ int64_t time, values[8];
+ nxt_uint_t i, n;
+ njs_date_t *date;
+ struct tm tm;
+
+ if (vm->frame->ctor) {
+
+ if (nargs == 0) {
+ time = njs_gettime();
+
+ } else if (nargs == 2 && njs_is_string(&args[1])) {
+ time = njs_date_string_parse(&args[1]);
+
+ } else {
+ memset(values, 0, 8 * sizeof(int64_t));
+ /* Month. */
+ values[2] = 1;
+
+ n = nxt_min(8, nargs);
+
+ for (i = 1; i < n; i++) {
+ if (!njs_is_numeric(&args[i])) {
+ return NJS_TRAP_NUMBER_ARG;
+ }
+
+ num = args[i].data.u.number;
+
+ if (njs_is_nan(num)) {
+ nargs = 0;
+ break;
+ }
+
+ values[i] = num;
+ }
+
+ if (nargs > 2) {
+ /* Year. */
+ if (values[1] > 99) {
+ values[1] -= 1900;
+ }
+
+ tm.tm_year = values[1];
+ tm.tm_mon = values[2];
+ tm.tm_mday = values[3];
+ tm.tm_hour = values[4];
+ tm.tm_min = values[5];
+ tm.tm_sec = values[6];
+ tm.tm_isdst = -1;
+
+ time = (int64_t) mktime(&tm) * 1000 + values[7];
+
+ } else {
+ time = values[1];
+ }
+ }
+
+ date = nxt_mem_cache_alloc(vm->mem_cache_pool, sizeof(njs_date_t));
+ if (nxt_slow_path(date == NULL)) {
+ return NXT_ERROR;
+ }
+
+ nxt_lvlhsh_init(&date->object.hash);
+ nxt_lvlhsh_init(&date->object.shared_hash);
+ date->object.shared = 0;
+ date->object.__proto__ = &vm->prototypes[NJS_PROTOTYPE_DATE];
+
+ date->time = time;
+
+ vm->retval.data.u.date = date;
+ vm->retval.type = NJS_DATE;
+ vm->retval.data.truth = 1;
+
+ return NXT_OK;
+ }
+
+ return njs_date_string(vm, "%a %b %d %Y %T GMT%z (%Z)", njs_gettime());
+}
+
+
+static njs_ret_t
+njs_date_utc(njs_vm_t *vm, njs_value_t *args, nxt_uint_t nargs,
+ njs_index_t unused)
+{
+ double num, time;
+ struct tm tm;
+ nxt_uint_t i, n;
+ int32_t values[8];
+
+ time = NJS_NAN;
+
+ if (nargs > 2) {
+ memset(values, 0, 8 * sizeof(int32_t));
+
+ n = nxt_min(8, nargs);
+
+ for (i = 1; i < n; i++) {
+ if (!njs_is_numeric(&args[i])) {
+ return NJS_TRAP_NUMBER_ARG;
+ }
+
+ num = args[i].data.u.number;
+
+ if (njs_is_nan(num)) {
+ goto done;
+ }
+
+ values[i] = num;
+ }
+
+ /* Year. */
+ if (values[1] > 99) {
+ values[1] -= 1900;
+ }
+
+ tm.tm_year = values[1];
+ tm.tm_mon = values[2];
+ tm.tm_mday = values[3];
+ tm.tm_hour = values[4];
+ tm.tm_min = values[5];
+ tm.tm_sec = values[6];
+
+ time = njs_timegm(&tm) * 1000 + values[7];
+ }
+
+done:
+
+ njs_number_set(&vm->retval, time);
+
+ return NXT_OK;
+}
+
+
+static int64_t
+njs_timegm(struct tm *tm)
+{
+ int32_t year, month, days;
+
+ year = tm->tm_year + 1900;
+
+ /*
+ * Shift new year to March 1 and start months
+ * from 1 (not 0), as required for Gauss' formula.
+ */
+
+ month = tm->tm_mon - 1;
+
+ if (month <= 0) {
+ month += 12;
+ year -= 1;
+ }
+
+ /* Gauss' formula for Gregorian days since March 1, 1 BCE. */
+
+ /* Days in years including leap years since March 1, 1 BCE. */
+ days = 365 * year + year / 4 - year / 100 + year / 400;
+
+ /* Days before the month. */
+ days += 367 * month / 12 - 30;
+
+ /* Days before the day. */
+ if (year >= 0) {
+ days += tm->tm_mday - 1;
+
+ } else {
+ /* 1 BCE was a leap year. */
+ days += tm->tm_mday - 2;
+ }
+
+ /*
+ * 719527 days were between March 1, 1 BCE and March 1, 1970,
+ * 31 and 28 days were in January and February 1970.
+ */
+ days = days - 719527 + 31 + 28;
+
+ return (int64_t) days * 86400
+ + tm->tm_hour * 3600
+ + tm->tm_min * 60
+ + tm->tm_sec;
+}
+
+
+static njs_ret_t
+njs_date_now(njs_vm_t *vm, njs_value_t *args, nxt_uint_t nargs,
+ njs_index_t unused)
+{
+ njs_number_set(&vm->retval, njs_gettime());
+
+ return NXT_OK;
+}
+
+
+static njs_ret_t
+njs_date_parse(njs_vm_t *vm, njs_value_t *args, nxt_uint_t nargs,
+ njs_index_t unused)
+{
+ double time;
+
+ if (nargs > 1) {
+ time = njs_date_string_parse(&args[1]);
+
+ } else {
+ time = NJS_NAN;
+ }
+
+ njs_number_set(&vm->retval, time);
+
+ return NXT_OK;
+}
+
+
+static nxt_noinline double
+njs_date_string_parse(njs_value_t *date)
+{
+ int ext, ms, gmtoff;
+ struct tm tm;
+ nxt_bool_t sign;
+ const u_char *p, *next, *end;
+ njs_string_prop_t string;
+
+ (void) njs_string_prop(&string, date);
+
+ p = string.start;
+ end = p + string.size;
+
+ if (nxt_slow_path(p + 10 >= end)) {
+ return NJS_NAN;
+ }
+
+ if (*p == '+') {
+ p++;
+ sign = 1;
+
+ } else if (*p == '-') {
+ p++;
+ sign = 1;
+
+ } else {
+ sign = 0;
+ }
+
+ next = njs_date_number_parse(&tm.tm_year, p, end, 4);
+
+ if (next != NULL) {
+ /* ISO-8601 format: "1970-09-28T06:00:00.000Z" */
+
+ if (*next != '-') {
+ /* Extended ISO-8601 format: "+001970-09-28T06:00:00.000Z" */
+
+ next = njs_date_number_parse(&ext, next, end, 2);
+ if (nxt_slow_path(next == NULL)) {
+ return NJS_NAN;
+ }
+
+ tm.tm_year = tm.tm_year * 100 + ext;
+
+ if (string.start[0] == '-') {
+ if (tm.tm_year == 0) {
+ return NJS_NAN;
+ }
+
+ tm.tm_year = -tm.tm_year;
+ }
+
+ if (*next != '-') {
+ return NJS_NAN;
+ }
+ }
+
+ tm.tm_year -= 1900;
+
+ p = njs_date_number_parse(&tm.tm_mon, next + 1, end, 2);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ tm.tm_mon--;
+
+ if (nxt_slow_path(p >= end || *p != '-')) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_number_parse(&tm.tm_mday, p + 1, end, 2);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ if (nxt_slow_path(p >= end || *p != 'T')) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_time_parse(&tm, p + 1, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ if (nxt_slow_path(p >= end || *p != '.')) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_number_parse(&ms, p + 1, end, 3);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ if (nxt_slow_path(p >= end || *p != 'Z')) {
+ return NJS_NAN;
+ }
+
+ return njs_timegm(&tm) * 1000 + ms;
+ }
+
+ if (sign) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_skip_week_day(p, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_skip_spaces(p, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ next = njs_date_number_parse(&tm.tm_mday, p, end, 2);
+
+ if (next != NULL) {
+ /*
+ * RFC 2822 format:
+ * "Mon, 28 Sep 1970 06:00:00 GMT",
+ * "Mon, 28 Sep 1970 06:00:00 UTC",
+ * "Mon, 28 Sep 1970 12:00:00 +0600".
+ */
+ p = njs_date_skip_spaces(next, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ tm.tm_mon = njs_date_month_parse(p, end);
+ if (nxt_slow_path(tm.tm_mon < 0)) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_skip_spaces(p + 3, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_number_parse(&tm.tm_year, p, end, 4);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ tm.tm_year -= 1900;
+
+ p = njs_date_skip_spaces(p, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_time_parse(&tm, p, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_skip_spaces(p, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ if (p + 2 < end) {
+
+ if ((p[0] == 'G' && p[1] == 'M' && p[2] == 'T')
+ || (p[0] == 'U' && p[1] == 'T' && p[2] == 'C'))
+ {
+ gmtoff = 0;
+
+ } else {
+ gmtoff = njs_date_gmtoff_parse(p, end);
+ if (nxt_slow_path(gmtoff == -1)) {
+ return NJS_NAN;
+ }
+ }
+
+ return (njs_timegm(&tm) - gmtoff * 60) * 1000;
+ }
+
+ return NJS_NAN;
+ }
+
+ /* Date.toString() format: "Mon Sep 28 1970 12:00:00 GMT+0600". */
+
+ tm.tm_mon = njs_date_month_parse(p, end);
+ if (nxt_slow_path(tm.tm_mon < 0)) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_skip_spaces(p + 3, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_number_parse(&tm.tm_mday, p, end, 2);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_skip_spaces(p, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_number_parse(&tm.tm_year, p, end, 4);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ tm.tm_year -= 1900;
+
+ p = njs_date_skip_spaces(p, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_time_parse(&tm, p, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ p = njs_date_skip_spaces(p, end);
+ if (nxt_slow_path(p == NULL)) {
+ return NJS_NAN;
+ }
+
+ if (p + 2 < end && p[0] == 'G' && p[1] == 'M' && p[2] == 'T') {
+
+ gmtoff = njs_date_gmtoff_parse(&p[3], end);
+
+ if (nxt_fast_path(gmtoff != -1)) {
+ return (njs_timegm(&tm) - gmtoff * 60) * 1000;
+ }
+ }
+
+ return NJS_NAN;
+}
+
+
+static const u_char *
+njs_date_skip_week_day(const u_char *p, const u_char *end)
+{
+ while (p < end) {
+ if (*p == ' ') {
+ return p;
+ }
+
+ p++;
+ }
+
+ return NULL;
+}
+
+
+static const u_char *
+njs_date_skip_spaces(const u_char *p, const u_char *end)
+{
+ if (p < end && *p++ == ' ') {
+
+ while (p < end) {
+ if (*p != ' ') {
+ return p;
+ }
+
+ p++;
+ }
+ }
+
+ return NULL;
+}
+
+
+static nxt_noinline nxt_int_t
+njs_date_month_parse(const u_char *p, const u_char *end)
+{
+ if (p + 2 < end) {
+ switch (p[0]) {
+
+ case 'J':
+ if (p[1] == 'a' && p[2] == 'n') {
+ return 0;
+ }
+
+ if (p[1] == 'u') {
+ if (p[2] == 'n') {
+ return 5;
+ }
+
+ if (p[2] == 'l') {
+ return 6;
+ }
+ }
+
+ break;
+
+ case 'F':
+ if (p[1] == 'e' && p[2] == 'b') {
+ return 1;
+ }
+
+ break;
+
+ case 'M':
+ if (p[1] == 'a') {
+ if (p[2] == 'r') {
+ return 2;
+ }
+
+ if (p[2] == 'y') {
+ return 4;
+ }
+ }
+
+ break;
+
+ case 'A':
+ if (p[1] == 'p' && p[2] == 'r') {
+ return 3;
+ }
+
+ if (p[1] == 'u' && p[2] == 'g') {
+ return 7;
+ }
+
+ break;
+
+ case 'S':
+ if (p[1] == 'e' && p[2] == 'p') {
+ return 8;
+ }
+
+ break;
+
+ case 'O':
+ if (p[1] == 'c' && p[2] == 't') {
+ return 9;
+ }
+
+ break;
+
+ case 'N':
+ if (p[1] == 'o' && p[2] == 'v') {
+ return 10;
+ }
+
+ break;
+
+ case 'D':
+ if (p[1] == 'e' && p[2] == 'c') {
+ return 11;
+ }
+
+ break;
+ }
+ }
+
+ return -1;
+}
+
+
+static nxt_noinline const u_char *
+njs_date_time_parse(struct tm *tm, const u_char *p, const u_char *end)
+{
+ p = njs_date_number_parse(&tm->tm_hour, p, end, 2);
+ if (nxt_slow_path(p == NULL)) {
+ return p;
+ }
+
+ if (nxt_slow_path(p >= end || *p != ':')) {
+ return NULL;
+ }
+
+ p = njs_date_number_parse(&tm->tm_min, p + 1, end, 2);
+ if (nxt_slow_path(p == NULL)) {
+ return p;
+ }
+
+ if (nxt_slow_path(p >= end || *p != ':')) {
+ return NULL;
+ }
+
+ return njs_date_number_parse(&tm->tm_sec, p + 1, end, 2);
+}
+
+
+static nxt_noinline nxt_int_t
+njs_date_gmtoff_parse(const u_char *start, const u_char *end)
+{
+ int gmtoff, hour, min;
+ const u_char *p;
+
+ if (nxt_fast_path(start + 4 < end && (*start == '+' || *start == '-'))) {
+
+ p = njs_date_number_parse(&hour, start + 1, end, 2);
+ if (nxt_slow_path(p == NULL)) {
+ return -1;
+ }
+
+ p = njs_date_number_parse(&min, p, end, 2);
+ if (nxt_slow_path(p == NULL)) {
+ return -1;
+ }
+
+ gmtoff = hour * 60 + min;
+
+ if (*start == '-') {
+ gmtoff = -gmtoff;
+ }
+
+ return gmtoff;
+ }
+
+ return -1;
+}
+
+
+static nxt_noinline const u_char *
+njs_date_number_parse(int *value, const u_char *p, const u_char *end,
+ size_t size)
+{
+ u_char c;
+ nxt_int_t n;
+
+ n = 0;
+
+ do {
+ if (nxt_slow_path(p >= end)) {
+ return NULL;
+ }
+
+ c = *p++;
+
+ /* Values below '0' become >= 208. */
+ c = c - '0';
+
+ if (nxt_slow_path(c > 9)) {
+ return NULL;
+ }
+
+ n = n * 10 + c;
+
+ size--;
+
+ } while (size != 0);
+
+ *value = n;
+
+ return p;
+}
+
+
+static const njs_object_prop_t njs_date_constructor_properties[] =
+{
+ /* Date.name == "Date". */
+ {
+ .type = NJS_PROPERTY,
+ .name = njs_string("name"),
+ .value = njs_string("Date"),
+ },
+
+ /* Date.length == 7. */
+ {
+ .type = NJS_PROPERTY,
+ .name = njs_string("length"),
+ .value = njs_value(NJS_NUMBER, 1, 7.0),
+ },
+
+ /* Date.prototype. */
+ {
+ .type = NJS_NATIVE_GETTER,
+ .name = njs_string("prototype"),
+ .value = njs_native_getter(njs_object_prototype_create),
+ },
+
+ {
+ .type = NJS_METHOD,
+ .name = njs_string("UTC"),
+ .value = njs_native_function(njs_date_utc, 0, 0),
+ },
+
+ {
+ .type = NJS_METHOD,
+ .name = njs_string("now"),
+ .value = njs_native_function(njs_date_now, 0, 0),
+ },
+
+ {
+ .type = NJS_METHOD,
+ .name = njs_string("parse"),
+ .value = njs_native_function(njs_date_parse, 0,
+ NJS_SKIP_ARG, NJS_STRING_ARG),
+ },
+};
+
+
+const njs_object_init_t njs_date_constructor_init = {
+ njs_date_constructor_properties,
+ nxt_nitems(njs_date_constructor_properties),
+};
+
+
+static njs_ret_t
+njs_date_prototype_value_of(njs_vm_t *vm, njs_value_t *args, nxt_uint_t nargs,
+ njs_index_t unused)
+{
+ njs_number_set(&vm->retval, args[0].data.u.date->time);
+
+ return NXT_OK;
+}
+
+
+static njs_ret_t
+njs_date_prototype_to_string(njs_vm_t *vm, njs_value_t *args, nxt_uint_t nargs,
+ njs_index_t unused)
+{
+ return njs_date_string(vm, "%a %b %d %Y %T GMT%z (%Z)",
+ args[0].data.u.date->time);
+}
+
+
+static njs_ret_t
+njs_date_prototype_to_date_string(njs_vm_t *vm, njs_value_t *args,
+ nxt_uint_t nargs, njs_index_t unused)
+{
+ return njs_date_string(vm, "%a %b %d %Y", args[0].data.u.date->time);
+}
+
+
+static njs_ret_t
+njs_date_prototype_to_time_string(njs_vm_t *vm, njs_value_t *args,
+ nxt_uint_t nargs, njs_index_t unused)
+{
+ return njs_date_string(vm, "%T GMT%z (%Z)", args[0].data.u.date->time);
+}
+
+
+static nxt_noinline njs_ret_t
+njs_date_string(njs_vm_t *vm, const char *fmt, double time)
+{
+ size_t size;
+ time_t clock;
+ u_char *start;
+ u_char buf[NJS_DATE_TIME_LEN];
+ struct tm tm;
+
+ if (!njs_is_nan(time)) {
+ clock = time / 1000;
+ localtime_r(&clock, &tm);
+
+ size = strftime((char *) buf, NJS_DATE_TIME_LEN, fmt, &tm);
+
+ start = njs_string_alloc(vm, &vm->retval, size, size);
+
+ if (nxt_fast_path(start != NULL)) {
+ memcpy(start, buf, size);
+ return NXT_OK;
+ }
+
+ return NXT_ERROR;
+ }
+
+ vm->retval = njs_string_invalid_date;
+
+ return NXT_OK;
+}
+
+
+static njs_ret_t
+njs_date_prototype_to_utc_string(njs_vm_t *vm, njs_value_t *args,
+ nxt_uint_t nargs, njs_index_t unused)
+{
+ double time;
+ size_t size;
+ time_t clock;
+ u_char *start;
+ u_char buf[NJS_DATE_TIME_LEN];
+ struct tm tm;
+
+ static const char *week[] = { "Sun", "Mon", "Tue", "Wed",
+ "Thu", "Fri", "Sat" };
+
+ static const char *month[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
+
+ time = args[0].data.u.date->time;
+
+ if (!njs_is_nan(time)) {
+ clock = time / 1000;
+ gmtime_r(&clock, &tm);
+
+ size = snprintf((char *) buf, NJS_DATE_TIME_LEN,
+ "%s %s %02d %4d %02d:%02d:%02d GMT",
+ week[tm.tm_wday], month[tm.tm_mon],
+ tm.tm_mday, tm.tm_year + 1900,
+ tm.tm_hour, tm.tm_min, tm.tm_sec);
+
+ start = njs_string_alloc(vm, &vm->retval, size, size);
+
+ if (nxt_fast_path(start != NULL)) {
+ memcpy(start, buf, size);
+ return NXT_OK;
+ }
+
+ return NXT_ERROR;
+ }
+
+ vm->retval = njs_string_invalid_date;
+
+ return NXT_OK;
+}
+
+
+static njs_ret_t
+njs_date_prototype_to_iso_string(njs_vm_t *vm, njs_value_t *args,
+ nxt_uint_t nargs, njs_index_t unused)
+{
+ int32_t year;
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