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* re.c (rb_reg_hash): define Regexp#hash to make regexps to be

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hash keys.

* re.c (Init_Regexp): define Regexp#eql? (alias to Regexp#==).


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3137 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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matz 2002-12-12 09:17:32 +00:00
parent d307881fe4
commit f744cfd8d7
2 changed files with 28 additions and 0 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
Thu Dec 12 17:27:19 2002 Yukihiro Matsumoto <matz@ruby-lang.org>
* re.c (rb_reg_hash): define Regexp#hash to make regexps to be
hash keys.
* re.c (Init_Regexp): define Regexp#eql? (alias to Regexp#==).
Thu Dec 12 16:26:31 2002 Nobuyoshi Nakada <nobu.nokada@softhome.net>
* marshal.c (r_object0): singleton class instance can't be loaded.

21
re.c
View file

@ -1056,6 +1056,25 @@ rb_reg_cur_kcode(re)
return 0;
}
static VALUE
rb_reg_hash(re)
VALUE re;
{
int hashval, len;
char *p;
rb_reg_check(re);
hashval = RREGEXP(re)->ptr->options;
len = RREGEXP(re)->len;
p = RREGEXP(re)->str;
while (len--) {
hashval = hashval * 33 + *p++;
}
hashval = hashval + (hashval>>5);
return INT2FIX(hashval);
}
static VALUE
rb_reg_equal(re1, re2)
VALUE re1, re2;
@ -1560,6 +1579,8 @@ Init_Regexp()
rb_define_method(rb_cRegexp, "initialize", rb_reg_initialize_m, -1);
rb_define_method(rb_cRegexp, "copy_object", rb_reg_copy_object, 1);
rb_define_method(rb_cRegexp, "hash", rb_reg_hash, 0);
rb_define_method(rb_cRegexp, "eql?", rb_reg_equal, 1);
rb_define_method(rb_cRegexp, "==", rb_reg_equal, 1);
rb_define_method(rb_cRegexp, "=~", rb_reg_match, 1);
rb_define_method(rb_cRegexp, "===", rb_reg_match, 1);