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体验新版 GitCode,发现更多精彩内容 >>
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3c81fc3b
编写于
11月 26, 2011
作者:
Y
Yehuda Katz
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差异文件
Merge pull request #3767 from tadast/object_in
Object#in? also accepts multiple parameters
上级
71b387d9
ebf69ab1
变更
2
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2 changed file
with
27 addition
and
7 deletion
+27
-7
activesupport/lib/active_support/core_ext/object/inclusion.rb
...vesupport/lib/active_support/core_ext/object/inclusion.rb
+17
-7
activesupport/test/core_ext/object/inclusion_test.rb
activesupport/test/core_ext/object/inclusion_test.rb
+10
-0
未找到文件。
activesupport/lib/active_support/core_ext/object/inclusion.rb
浏览文件 @
3c81fc3b
class
Object
# Returns true if this object is included in the argument. Argument must be
# any object which responds to +#include?+. Usage:
# Returns true if this object is included in the argument
(s)
. Argument must be
# any object which responds to +#include?+
or optionally, multiple arguments can be passed in
. Usage:
#
# characters = ["Konata", "Kagami", "Tsukasa"]
# "Konata".in?(characters) # => true
#
# This will throw an ArgumentError if the argument doesn't respond
# character = "Konata"
# character.in?("Konata", "Kagami", "Tsukasa") # => true
#
# This will throw an ArgumentError if a single argument is passed in and it doesn't respond
# to +#include?+.
def
in?
(
another_object
)
another_object
.
include?
(
self
)
rescue
NoMethodError
raise
ArgumentError
.
new
(
"The parameter passed to #in? must respond to #include?"
)
def
in?
(
*
args
)
if
args
.
length
>
1
args
.
include?
self
else
another_object
=
args
.
first
if
another_object
.
respond_to?
:include?
another_object
.
include?
self
else
raise
ArgumentError
.
new
(
"The single parameter passed to #in? must respond to #include?"
)
end
end
end
end
activesupport/test/core_ext/object/inclusion_test.rb
浏览文件 @
3c81fc3b
...
...
@@ -2,6 +2,16 @@
require
'active_support/core_ext/object/inclusion'
class
InTest
<
Test
::
Unit
::
TestCase
def
test_in_multiple_args
assert
:b
.
in?
(
:a
,
:b
)
assert
!
:c
.
in?
(
:a
,
:b
)
end
def
test_in_multiple_arrays
assert
[
1
,
2
].
in?
([
1
,
2
],[
2
,
3
])
assert
!
[
1
,
2
].
in?
([
1
,
3
],[
2
,
1
])
end
def
test_in_array
assert
1
.
in?
([
1
,
2
])
assert
!
3
.
in?
([
1
,
2
])
...
...
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