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Optimize each_sum for hashes

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* enum.c (enum_sum, hash_sum, hash_sum_i, enum_sum_i, sum_iter):
  Optimize for hashes when each method isn't redefined.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55041 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
mrkn 2016-05-18 00:54:52 +00:00
parent eb9c9964b0
commit 49432957c7
2 changed files with 38 additions and 6 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Wed May 18 09:52:00 2016 Kenta Murata <mrkn@mrkn.jp>
* enum.c (enum_sum, hash_sum, hash_sum_i, enum_sum_i, sum_iter):
Optimize for hashes when each method isn't redefined.
Wed May 18 09:14:00 2016 Kenta Murata <mrkn@mrkn.jp>
* enum.c (enum_sum, int_range_sum): Extract int_range_sum from

39
enum.c
View file

@ -13,6 +13,8 @@
#include "ruby/util.h"
#include "id.h"
#include <assert.h>
VALUE rb_mEnumerable;
static ID id_next;
@ -3569,18 +3571,17 @@ struct enum_sum_memo {
int float_value;
};
static VALUE
enum_sum_iter_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, args))
static void
sum_iter(VALUE i, struct enum_sum_memo *memo)
{
struct enum_sum_memo *memo = (struct enum_sum_memo *)args;
assert(memo != NULL);
long n = memo->n;
VALUE v = memo->v;
VALUE r = memo->r;
double f = memo->f;
double c = memo->c;
ENUM_WANT_SVALUE();
if (memo->block_given)
i = rb_yield(i);
@ -3662,10 +3663,32 @@ enum_sum_iter_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, args))
memo->r = r;
memo->f = f;
memo->c = c;
}
static VALUE
enum_sum_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, args))
{
ENUM_WANT_SVALUE();
sum_iter(i, (struct enum_sum_memo *) args);
return Qnil;
}
static int
hash_sum_i(VALUE key, VALUE value, VALUE arg)
{
sum_iter(rb_assoc_new(key, value), (struct enum_sum_memo *) arg);
return ST_CONTINUE;
}
static void
hash_sum(VALUE hash, struct enum_sum_memo *memo)
{
assert(RB_TYPE_P(hash, T_HASH));
assert(memo != NULL);
rb_hash_foreach(hash, hash_sum_i, (VALUE)memo);
}
static VALUE
int_range_sum(VALUE beg, VALUE end, int excl, VALUE init)
{
@ -3743,7 +3766,11 @@ enum_sum(int argc, VALUE* argv, VALUE obj)
}
}
rb_block_call(obj, id_each, 0, 0, enum_sum_iter_i, (VALUE)&memo);
if (RB_TYPE_P(obj, T_HASH) &&
rb_method_basic_definition_p(CLASS_OF(obj), id_each))
hash_sum(obj, &memo);
else
rb_block_call(obj, id_each, 0, 0, enum_sum_i, (VALUE)&memo);
if (memo.float_value) {
return DBL2NUM(memo.f);