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* hash.c (hash_default_value): extract from rb_hash_aref(), to be

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shared with rb_hash_shift(), so that overriding Hash#default
  will be respected.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35197 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2012-03-31 05:23:01 +00:00
parent 15ca66efb0
commit 160d02d830
3 changed files with 30 additions and 13 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
Sat Mar 31 14:22:59 2012 Nobuyoshi Nakada <nobu@ruby-lang.org>
* hash.c (hash_default_value): extract from rb_hash_aref(), to be
shared with rb_hash_shift(), so that overriding Hash#default
will be respected.
Sat Mar 31 14:16:02 2012 Sokolov Yura (funny-falcon) <funny.falcon@gmail.com>
* hash.c: do not allocate st_table when it is not necessary.

29
hash.c
View file

@ -480,6 +480,20 @@ rb_hash_rehash(VALUE hash)
return hash;
}
static VALUE
hash_default_value(VALUE hash, VALUE key)
{
if (rb_method_basic_definition_p(CLASS_OF(hash), id_default)) {
VALUE ifnone = RHASH_IFNONE(hash);
if (!FL_TEST(hash, HASH_PROC_DEFAULT)) return ifnone;
if (key == Qundef) return Qnil;
return rb_funcall(ifnone, id_yield, 2, hash, key);
}
else {
return rb_funcall(hash, id_default, 1, key);
}
}
/*
* call-seq:
* hsh[key] -> value
@ -500,13 +514,7 @@ rb_hash_aref(VALUE hash, VALUE key)
st_data_t val;
if (!RHASH(hash)->ntbl || !st_lookup(RHASH(hash)->ntbl, key, &val)) {
if (!FL_TEST(hash, HASH_PROC_DEFAULT) &&
rb_method_basic_definition_p(CLASS_OF(hash), id_default)) {
return RHASH_IFNONE(hash);
}
else {
return rb_funcall(hash, id_default, 1, key);
}
return hash_default_value(hash, key);
}
return (VALUE)val;
}
@ -865,12 +873,7 @@ rb_hash_shift(VALUE hash)
return rb_assoc_new(var.key, var.val);
}
}
if (FL_TEST(hash, HASH_PROC_DEFAULT)) {
return rb_funcall(RHASH_IFNONE(hash), id_yield, 2, hash, Qnil);
}
else {
return RHASH_IFNONE(hash);
}
return hash_default_value(hash, Qnil);
}
static int

8
test/ruby/test_hash.rb
View file

@ -739,6 +739,14 @@ class TestHash < Test::Unit::TestCase
h.each { assert_equal([1, 2], h.shift) }
end
def test_shift_none
h = Hash.new {|hh, k| "foo"}
def h.default(k = nil)
default_proc.call(k).upcase
end
assert_equal("FOO", h.shift)
end
def test_reject_bang2
assert_equal({1=>2}, {1=>2,3=>4}.reject! {|k, v| k + v == 7 })
assert_nil({1=>2,3=>4}.reject! {|k, v| k == 5 })