[#88240] [Ruby trunk Feature#14759] [PATCH] set M_ARENA_MAX for glibc malloc โ sam.saffron@...
Issue #14759 has been updated by sam.saffron (Sam Saffron).
3 messages
2018/08/01
[#88251] Re: [ruby-alerts:8236] failure alert on trunk@P895 (NG (r64134)) โ Eric Wong <normalperson@...>
ko1c-failure@atdot.net wrote:
3 messages
2018/08/01
[#88305] [Ruby trunk Bug#14968] [PATCH] io.c: make all pipes nonblocking by default โ normalperson@...
Issue #14968 has been reported by normalperson (Eric Wong).
4 messages
2018/08/06
[#88331] [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid โ samuel@...
Issue #13618 has been updated by ioquatix (Samuel Williams).
3 messages
2018/08/08
[#88342] [Ruby trunk Feature#14955] [PATCH] gc.c: use MADV_FREE to release most of the heap page body โ ko1@...
Issue #14955 has been updated by ko1 (Koichi Sasada).
3 messages
2018/08/08
[#88433] [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid โ ko1@...
Issue #13618 has been updated by ko1 (Koichi Sasada).
4 messages
2018/08/10
[#88467] Re: [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid
โ Eric Wong <normalperson@...>
2018/08/14
ko1@atdot.net wrote:
[#88475] [Ruby trunk Misc#14937] [PATCH] thread_pthread: lazy-spawn timer-thread only on contention โ ko1@...
Issue #14937 has been updated by ko1 (Koichi Sasada).
3 messages
2018/08/14
[#88491] Re: [ruby-cvs:71466] k0kubun:r64374 (trunk): test_function.rb: skip running test โ Eric Wong <normalperson@...>
k0kubun@ruby-lang.org wrote:
5 messages
2018/08/15
[#88495] Re: [ruby-cvs:71466] k0kubun:r64374 (trunk): test_function.rb: skip running test
โ Takashi Kokubun <takashikkbn@...>
2018/08/15
I see. Please remove the test if the test is unnecessary.
[#88496] Re: [ruby-cvs:71466] k0kubun:r64374 (trunk): test_function.rb: skip running test
โ Eric Wong <normalperson@...>
2018/08/15
Takashi Kokubun <takashikkbn@gmail.com> wrote:
[#88523] [Ruby trunk Bug#14999] ConditionVariable doesn't reacquire the Mutex if Thread#kill-ed โ eregontp@...
Issue #14999 has been updated by Eregon (Benoit Daloze).
4 messages
2018/08/17
[#88524] Re: [Ruby trunk Bug#14999] ConditionVariable doesn't reacquire the Mutex if Thread#kill-ed
โ Eric Wong <normalperson@...>
2018/08/18
eregontp@gmail.com wrote:
[#88549] [Ruby trunk Bug#14999] ConditionVariable doesn't reacquire the Mutex if Thread#kill-ed โ eregontp@...
Issue #14999 has been updated by Eregon (Benoit Daloze).
3 messages
2018/08/19
[#88676] [Ruby trunk Misc#15014] thread.c: use rb_hrtime_scalar for high-resolution time operations โ ko1@...
Issue #15014 has been updated by ko1 (Koichi Sasada).
5 messages
2018/08/27
[#88677] Re: [Ruby trunk Misc#15014] thread.c: use rb_hrtime_scalar for high-resolution time operations
โ Eric Wong <normalperson@...>
2018/08/27
ko1@atdot.net wrote:
[#88678] Re: [Ruby trunk Misc#15014] thread.c: use rb_hrtime_scalar for high-resolution time operations
โ Koichi Sasada <ko1@...>
2018/08/27
On 2018/08/27 16:16, Eric Wong wrote:
[#88716] Re: [ruby-dev:43715] [Ruby 1.9 - Bug #595] Fiber ignores ensure clause โ Eric Wong <normalperson@...>
Koichi Sasada wrote:
4 messages
2018/08/29
[#88723] [Ruby trunk Bug#15041] [PATCH] cont.c: set th->root_fiber to current fiber at fork โ ko1@...
Issue #15041 has been updated by ko1 (Koichi Sasada).
3 messages
2018/08/29
[#88767] [Ruby trunk Bug#15050] GC after forking with fibers crashes โ ko1@...
Issue #15050 has been updated by ko1 (Koichi Sasada).
7 messages
2018/08/31
[#88769] Re: [Ruby trunk Bug#15050] GC after forking with fibers crashes
โ Eric Wong <normalperson@...>
2018/08/31
Koichi Sasada <ko1@atdot.net> wrote:
[#88770] Re: [Ruby trunk Bug#15050] GC after forking with fibers crashes
โ Koichi Sasada <ko1@...>
2018/08/31
[#88773] Re: [Ruby trunk Bug#15050] GC after forking with fibers crashes
โ Eric Wong <normalperson@...>
2018/08/31
Koichi Sasada <ko1@atdot.net> wrote:
[#88774] Re: [ruby-alerts:8955] failure alert on trunk@P895 (NG (r64594)) โ Eric Wong <normalperson@...>
ko1c-failure@atdot.net wrote:
3 messages
2018/08/31
[ruby-core:88289] [Ruby trunk Feature#14869] Proposal to add Hash#===
From:
keystonelemur@...
Date:
2018-08-04 15:55:38 UTC
List:
ruby-core #88289
Issue #14869 has been updated by baweaver (Brandon Weaver).
I would agree with `===` being more useful than `<=`, as `case`, `all?`, `grep`, and other methods use it implicitly.
This would be an amazing addition for Ruby, and would bring us closer to pattern matching syntax.
The great part about this is your implementation uses `===` to compare values as well. This makes it very flexible, and extremely useful.
**Aside / Offtopic**
This may be unrelated, and if so feel free to tell me to open another issue, but what if it worked on Objects:
```
Person = Struct.new(:id, :name, :age)
people = [{:id=>1, :name=>"Homu", :age=>13}, {:id=>2, :name=>"mami", :age=>14}].map { |p| Person.new(*p.values) }
people.grep(age: 10..13) # => [#<struct Person id=1, name="Homu", age=13>]
```
----------------------------------------
Feature #14869: Proposal to add Hash#===
https://bugs.ruby-lang.org/issues/14869#change-73313
* Author: osyo (manga osyo)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
----------------------------------------
## ๆฆ่ฆ
`Hash#===` ใ่ฟฝๅ ใใๆๆกใซใชใใพใใ
## ไปๆง
ใฌใทใผใใฎใญใผใฎ่ฆ็ด ใจๅผๆฐใฎใใใทใฅใฎใญใผใฎ่ฆ็ด ใ `#===` ใงๆฏ่ผใใฆใๅ
จใฆใ็ใชใ `true` ใ่ฟใใใใใงใชใใชใ `false` ใ่ฟใใ
ใพใใใฌใทใผใใ็ฉบใฎใใใทใฅใฎๅ ดๅใๅผๆฐใ็ฉบใฎใใใทใฅใชใ `true` ใ่ฟใใใใใงใชใใชใ `false` ใ่ฟใใ
```ruby
user = { id: 1, name: "homu", age: 14 }
# name ่ฆ็ด ใ data ใซใใใฎใง true
p ({ name: "homu" } === user)
# => true
# ่คๆฐใฎ่ฆ็ด ใใใฃใฆใ OK
p ({ id: 1, name: "homu", age: 14 } === user)
# => true
# name ่ฆ็ด ใ user ใซใใใใๅคใ้ใใฎใง false
p ({ name: "name" } === user)
# => false
# ใญใผใฎ่ฆ็ด ใๅผๆฐใซใชใใฎใง false
p ({ number: 42 } === user)
# => false
# 1ใคใงใใญใผใฎ่ฆ็ด ใใชใๅ ดๅใ false
p ({ id: 1, name: "homu", number: 42 } === user)
# => false
# ใฌใทใผใใ็ฉบใฎใใใทใฅใชใ false
p ({} == user)
# => false
# ็ฉบใฎใใใทใฅๅๅฃซใชใ true
p ({} == {})
# => true
# ๅผๆฐใใใใทใฅไปฅๅคใชใ false
p ({ id: 42 } == 42)
# => false
# #=== ใงๆฏ่ผใใฆใใใฎใงใใใใใใจใใงใใ
p ({ name: /^h/ } === user)
# => true
p ({ age: (1..20) } === user)
# => true
p ({ age: Integer } === user)
# => true
```
## ใฆใผในใฑใผใน
### ใใชใใผใทใงใณ
case-when ใงใฏ `===` ใไฝฟ็จใใฆๅคใๆฏ่ผใใฆใใใฎใงใ`Hash#===` ใๅฉ็จใใใใจใงๆฌกใฎใใใซๆกไปถๅๅฒใ่กใใใจใๅบๆฅใใ
```ruby
def validation user
case user
# name ใซๅฏพใใใใชใใผใทใงใณ
when { name: /^[a-z]/ }
raise "ๅๅใฎๅ
้ ญใๅฐๆๅญใฎๅ ดๅใฏ็ป้ฒใงใใพใใ"
# age ใซๅฏพใใใใชใใผใทใงใณ
when { age: (0..20) }
raise "0ใ20ๆญณใฏ็ป้ฒใงใใพใใ"
# ๅ่ฆ็ด ใไปปๆใฎใฏใฉในใฎใคใณในใฟใณในใใฉใใใฎใใชใใผใทใงใณ
when { id: Integer, name: String, age: Integer }
true
else
false
end
end
# ๆกไปถใๆบใใใฆใใใฎใง OK
mami = { id: 1, name: "Mami", age: 21 }
validation mami
# => true
# name ใๅฐๆๅญใใๅงใพใฃใฆใใใฎใง NG
mado = { id: 2, name: "mado", age: 13 }
validation mado
# => ๅๅใฎๅ
้ ญใๅฐๆๅญใฎๅ ดๅใฏ็ป้ฒใงใใพใใ (RuntimeError)
# age ใ 0ใ20ๆญณไปฅๅ
ใชใฎใง NG
homu = { id: 3, name: "Homu", age: 14 }
validation homu
# => 0ใ20ๆญณใฏ็ป้ฒใงใใพใใ (RuntimeError)
```
### `Enumerable#grep`
`Enumerable#grep` ใฏๅ
้จใง `===` ใไฝฟ็จใใๆฏ่ผใ่กใฃใฆใใใฎใงใๆฌกใฎใใใซไปปๆใฎ Hash ใฎใญใผใฎ่ฆ็ด ใซๅฏพใใฆๆค็ดขใ่กใใใจใๅบๆฅใใ
```ruby
data = [
{ id: 1, name: "Homu", age: 13 },
{ id: 2, name: "mami", age: 14 },
{ id: 3, name: "Mado", age: 21 },
{ id: 4, name: "saya", age: 14 },
]
# ็นๅฎใฎ่ฆ็ด ใๅซใพใใฆใใ Hash ใฎใฟใ็ตใ่พผใ
p data.grep(name: /m/)
# => [{:id=>1, :name=>"Homu", :age=>13}, {:id=>2, :name=>"mami", :age=>14}]
p data.grep(age: (1..20))
# => [{:id=>1, :name=>"Homu", :age=>13}, {:id=>2, :name=>"mami", :age=>14}, {:id=>4, :name=>"saya", :age=>14}]
```
## ่ฃ่ถณ1๏ผ `==` ใงใฏใชใใฆ `===` ใงๆฏ่ผใใ็็ฑ
* `===` ใไฝฟ็จใใใใจใงใใ็ดฐใใใปๆฝ่ฑก็ใชๆกไปถใๆๅฎใใใใจใๅบๆฅใ
* `Class` ใ `Regexp`ใ`Proc` ใชใฉใงๆฏ่ผใใใใจใๅบๆฅใ
* ๅ
้จใง `===` ใไฝฟ็จใใฆใใๅ ดๅใ `==` ใงๆฏ่ผใใใๅ ดๅใฏ `obj.method(:==)` ใๆธกใใฐๅฎ็พๅบๆฅใใใใใฎ้ใฏๅบๆฅใชใ
* ๅ
้จใง `==` ใไฝฟ็จใใฆใใๅ ดๅใ `===` ใงๆฏ่ผใใใใใฆใๅบๆฅใชใ
## ่ฃ่ถณ2๏ผ ็ฉบใฎใใใทใฅใฎๆฏ่ผใซ้ขใใฆ
* `Object#===` ใฎๅ ดๅใ ใจ `{} === 42` ใไพๅคใงใฏใชใใฆ `false` ใ่ฟใใฆใใใฎใงใ`Hash#===` ใ `false` ใ่ฟใใใใซใใ
* `{} === {}` ใ `true` ใ่ฟใใฎใๅๆงใฎ็็ฑใซใชใใพใ
* ใใใซใใไปฅไธใฎใใใชๆขๅญใฎใณใผใใไบๆๆงใๅฃใใใจใชใๅไฝใใใใจๆใใพใ
```ruby
def check n
case n
when {}
"Empty Hash"
when []
"Empty Array"
when 0
"Zero"
else
"Not empty"
end
end
p check({}) # => "Empty Hash"
p check([]) # => "Empty Array"
p check(0) # => "Zero"
p check({ name: "mado" }) # => "Not empty"
```
ไปฅไธใ`Hash#===` ใซ้ขใใๆๆกใซใชใใพใใ
ๆๅใซ้ขใใฆ็ๅ็นใๆ่ฆใชใฉใใใใพใใใใณใกใณใ้ ใใใจๅฉใใใพใใ
---Files--------------------------------
hash_eqq.patch (3.54 KB)
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