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Prefer rb_check_arity when 0 or 1 arguments

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Especially over checking argc then calling rb_scan_args just to
raise an ArgumentError.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66238 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2018-12-06 07:49:24 +00:00
parent 0cd28199e5
commit 98e65d9d92
18 changed files with 72 additions and 139 deletions
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7
range.c
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@ -397,12 +397,7 @@ range_step(int argc, VALUE *argv, VALUE range)
b = RANGE_BEG(range);
e = RANGE_END(range);
if (argc == 0) {
step = INT2FIX(1);
}
else {
rb_scan_args(argc, argv, "01", &step);
}
step = (!rb_check_arity(argc, 0, 1) ? INT2FIX(1) : argv[0]);
if (!rb_block_given_p()) {
if (rb_obj_is_kind_of(b, rb_cNumeric) && (NIL_P(e) || rb_obj_is_kind_of(e, rb_cNumeric))) {