[njs] Simplified String.prototype.repeat() to match the spec.

[Dmitry Volyntsev]

details:   https://hg.nginx.org/njs/rev/f1e8e753417d
branches:  
changeset: 1639:f1e8e753417d
user:      Dmitry Volyntsev <xeioex at nginx.com>
date:      Mon May 24 10:51:48 2021 +0000
description:
Simplified String.prototype.repeat() to match the spec.

diffstat:

 src/njs_string.c |  7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diffs (32 lines):

diff -r 87f91ff16931 -r f1e8e753417d src/njs_string.c
--- a/src/njs_string.c	Mon May 24 10:51:47 2021 +0000
+++ b/src/njs_string.c	Mon May 24 10:51:48 2021 +0000
@@ -2924,7 +2924,6 @@ njs_string_prototype_repeat(njs_vm_t *vm
     njs_index_t unused)
 {
     u_char             *p;
-    double             count;
     int64_t            n, max;
     uint64_t           size, length;
     njs_int_t          ret;
@@ -2944,18 +2943,16 @@ njs_string_prototype_repeat(njs_vm_t *vm
         return ret;
     }
 
-    ret = njs_value_to_number(vm, njs_arg(args, nargs, 1), &count);
+    ret = njs_value_to_integer(vm, njs_arg(args, nargs, 1), &n);
     if (njs_slow_path(ret != NJS_OK)) {
         return ret;
     }
 
-    if (njs_slow_path(!isnan(count) && (count < 0 || isinf(count)))) {
+    if (njs_slow_path(n < 0 || n == INT64_MAX)) {
         njs_range_error(vm, NULL);
         return NJS_ERROR;
     }
 
-     n = njs_number_to_integer(count);
-
     (void) njs_string_prop(&string, this);
 
     if (njs_slow_path(n == 0 || string.size == 0)) {