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instance method

MatchData#hash

() -> ::Integer

hash → integer

static VALUE
match_hash(VALUE match)
{
    st_index_t hashval;

    match_check(match);
    hashval = rb_hash_start(rb_str_hash(RMATCH(match)->str));
    hashval = rb_hash_uint(hashval, reg_hash(match_regexp(match)));
    int num_regs = RMATCH_NREGS(match);
    hashval = rb_hash_uint(hashval, num_regs);
    hashval = rb_hash_uint(hashval, rb_memhash(RMATCH_BEG_PTR(match), num_regs * sizeof(OnigPosition)));
    hashval = rb_hash_uint(hashval, rb_memhash(RMATCH_END_PTR(match), num_regs * sizeof(OnigPosition)));
    hashval = rb_hash_end(hashval);
    return ST2FIX(hashval);
}

Returns the integer hash value for self, based on the target string, regexp, match, and captures.