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* array.c (rb_ary_set_len): new function to set array length.

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* vm_eval.c (method_missing): set the length of argv array, to mark
  arguments.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32740 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2011-07-29 14:53:51 +00:00
parent 0d6329343a
commit d93746490d
4 changed files with 23 additions and 1 deletions
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15
array.c
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@ -1310,6 +1310,21 @@ rb_ary_splice(VALUE ary, long beg, long len, VALUE rpl)
}
}
void
rb_ary_set_len(VALUE ary, long len)
{
long capa;
rb_ary_modify_check(ary);
if (ARY_SHARED_P(ary)) {
rb_raise(rb_eRuntimeError, "can't set length of shared ");
}
if (len > (capa = (long)ARY_CAPA(ary))) {
rb_bug("probable buffer overflow: %ld for %ld", len, capa);
}
ARY_SET_LEN(ary, len);
}
/*!
* expands or shrinks \a ary to \a len elements.
* expanded region will be filled with Qnil.