details: http://hg.nginx.org/njs/rev/1f68ffabcea9
branches:
changeset: 232:1f68ffabcea9
user: Valentin Bartenev <vbart@nginx.com>
date: Mon Oct 31 16:25:54 2016 +0300
description:
Math.trunc() method.

diffstat:

njs/njs_math.c | 27 +++++++++++++++++++++++++++
njs/test/njs_unit_test.c | 30 ++++++++++++++++++++++++++++++
2 files changed, 57 insertions(+), 0 deletions(-)

diffs (84 lines):

diff -r b0b46036d54e -r 1f68ffabcea9 njs/njs_math.c
--- a/njs/njs_math.c Mon Oct 31 15:56:49 2016 +0300
+++ b/njs/njs_math.c Mon Oct 31 16:25:54 2016 +0300
@@ -390,6 +390,25 @@ njs_object_math_tan(njs_vm_t *vm, njs_va
}


+static njs_ret_t
+njs_object_math_trunc(njs_vm_t *vm, njs_value_t *args, nxt_uint_t nargs,
+ njs_index_t unused)
+{
+ double num;
+
+ if (nargs > 1) {
+ num = args[1].data.u.number;
+
+ } else {
+ num = NJS_NAN;
+ }
+
+ njs_number_set(&vm->retval, trunc(num));
+
+ return NXT_OK;
+}
+
+
static const njs_object_prop_t njs_math_object_properties[] =
{
{
@@ -568,6 +587,14 @@ static const njs_object_prop_t njs_math
.value = njs_native_function(njs_object_math_tan, 0,
NJS_SKIP_ARG, NJS_NUMBER_ARG),
},
+
+ /* ES6. */
+ {
+ .type = NJS_METHOD,
+ .name = njs_string("trunc"),
+ .value = njs_native_function(njs_object_math_trunc, 0,
+ NJS_SKIP_ARG, NJS_NUMBER_ARG),
+ },
};


diff -r b0b46036d54e -r 1f68ffabcea9 njs/test/njs_unit_test.c
--- a/njs/test/njs_unit_test.c Mon Oct 31 15:56:49 2016 +0300
+++ b/njs/test/njs_unit_test.c Mon Oct 31 16:25:54 2016 +0300
@@ -5373,6 +5373,36 @@ static njs_unit_test_t njs_test[] =
{ nxt_string("Math.pow()"),
nxt_string("NaN") },

+ { nxt_string("Math.trunc(3.9)"),
+ nxt_string("3") },
+
+ { nxt_string("Math.trunc(-3.9)"),
+ nxt_string("-3") },
+
+ { nxt_string("Math.trunc(0)"),
+ nxt_string("0") },
+
+ { nxt_string("Math.trunc(-0)"),
+ nxt_string("-0") },
+
+ { nxt_string("Math.trunc(0.9)"),
+ nxt_string("0") },
+
+ { nxt_string("Math.trunc(-0.9)"),
+ nxt_string("-0") },
+
+ { nxt_string("Math.trunc(Infinity)"),
+ nxt_string("Infinity") },
+
+ { nxt_string("Math.trunc(-Infinity)"),
+ nxt_string("-Infinity") },
+
+ { nxt_string("Math.trunc(NaN)"),
+ nxt_string("NaN") },
+
+ { nxt_string("Math.trunc()"),
+ nxt_string("NaN") },
+
/* ES5FIX: "[object Math]". */

{ nxt_string("Math"),

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