[#43077] problems committing — Aaron Patterson <tenderlove@...>
It seems like the disk might be full on the svn server:
5 messages
2012/03/05
[#43090] "\\".gsub("\\", "\\\\") == "\\" ?!!! — Rodrigo Rosenfeld Rosas <rr.rosas@...>
Please, help me understand what is happening here.
6 messages
2012/03/06
[#43094] Re: "\\".gsub("\\", "\\\\") == "\\" ?!!!
— Xavier Noria <fxn@...>
2012/03/06
A literal passed as second argument to gsub goes over two
[#43120] [ruby-trunk - Bug #6124][Open] What is the purpose of "fake" gems in Ruby — Vit Ondruch <v.ondruch@...>
27 messages
2012/03/07
[#43142] Questions about thread performance (with benchmark included) — Rodrigo Rosenfeld Rosas <rr.rosas@...>
A while ago I've written an article entitled "How Nokogiri and JRuby
10 messages
2012/03/08
[#43785] Re: Questions about thread performance (with benchmark included)
— Tomoyuki Chikanaga <nagachika00@...>
2012/03/28
Hello, Rodrigo.
[#43797] Re: Questions about thread performance (with benchmark included)
— Rodrigo Rosenfeld Rosas <rr.rosas@...>
2012/03/28
Em 27-03-2012 23:22, Tomoyuki Chikanaga escreveu:
[#44213] Re: Questions about thread performance (with benchmark included)
— SASADA Koichi <ko1@...>
2012/04/09
Hi,
[#44214] Re: Questions about thread performance (with benchmark included)
— Urabe Shyouhei <shyouhei@...>
2012/04/09
#### MRI threads myths and facts #####
[#44220] Re: Questions about thread performance (with benchmark included)
— Rodrigo Rosenfeld Rosas <rr.rosas@...>
2012/04/09
Hi Urabe, thank you for your input, but I think you have
[#43163] Help w/ some C to create NullClass — trans <transfire@...>
I am trying to write a C extension for "NullClass" functionality. I've
3 messages
2012/03/10
[#43245] [ruby-trunk - Bug #6131][Open] Ctrl-C handler do not work from exec process (Windows) — Luis Lavena <luislavena@...>
10 messages
2012/03/12
[#43279] [ruby-trunk - Bug #6148][Open] ruby_1_9_3 revision conflict — Jon Forums <redmine@...>
4 messages
2012/03/14
[#43313] [ruby-trunk - Feature #6150][Open] add Enumerable#grep_v — Suraj Kurapati <sunaku@...>
17 messages
2012/03/15
[#43325] [ruby-trunk - Bug #6154][Open] Eliminate extending WaitReadable/Writable at runtime — Charles Nutter <headius@...>
25 messages
2012/03/16
[#43369] Re: [ruby-trunk - Bug #6154][Open] Eliminate extending WaitReadable/Writable at runtime
— Tanaka Akira <akr@...>
2012/03/17
2012/3/16 Charles Nutter <[email protected]>:
[#43326] [ruby-trunk - Bug #6154] Eliminate extending WaitReadable/Writable at runtime
— Charles Nutter <headius@...>
2012/03/16
[#43334] [ruby-trunk - Bug #6155][Open] Enumerable::Lazy#flat_map raises an exception when an element does not respond to #each — Dan Kubb <dan.kubb@...>
9 messages
2012/03/16
[#43345] [ruby-trunk - Bug #6159][Open] Enumerable::Lazy#inspect — Benoit Daloze <redmine@...>
10 messages
2012/03/16
[#43497] [ruby-trunk - Bug #6179][Open] File::pos broken in Windows 1.9.3p125 — "jmthomas (Jason Thomas)" <jmthomas@...>
24 messages
2012/03/20
[#43502] [ruby-trunk - Feature #6180][Open] to_b for converting objects to a boolean value — "AaronLasseigne (Aaron Lasseigne)" <aaron.lasseigne@...>
17 messages
2012/03/20
[#43529] [ruby-trunk - Bug #6183][Open] Enumerator::Lazy performance issue — "gregolsen (Innokenty Mikhailov)" <anotheroneman@...>
36 messages
2012/03/21
[#43814] [ruby-trunk - Feature #6219][Open] Return value of Hash#store — "MartinBosslet (Martin Bosslet)" <Martin.Bosslet@...>
20 messages
2012/03/28
[#43904] [ruby-trunk - Feature #6225][Open] Hash#+ — "trans (Thomas Sawyer)" <transfire@...>
36 messages
2012/03/29
[#43923] [ruby-trunk - Feature #6225] Hash#+
— "shyouhei (Shyouhei Urabe)" <shyouhei@...>
2012/03/30
[#43909] [ruby-trunk - Feature #6225][Assigned] Hash#+
— "mame (Yusuke Endoh)" <mame@...>
2012/03/29
[#43920] [ruby-trunk - Feature #6225] Hash#+
— "shyouhei (Shyouhei Urabe)" <shyouhei@...>
2012/03/30
[#43951] [ruby-trunk - Bug #6228][Open] [mingw] Errno::EBADF in ruby/test_io.rb on ruby_1_9_3 — "jonforums (Jon Forums)" <redmine@...>
28 messages
2012/03/30
[#43996] [ruby-trunk - Bug #6236][Open] WEBrick::HTTPServer swallows Exception — "regularfry (Alex Young)" <alex@...>
13 messages
2012/03/31
[#44015] [Ruby 1.8 - Bug #6239][Open] super Does Not Pass Modified Rest Args When Originally Empty — "mudge (Paul Mucur)" <mudge@...>
6 messages
2012/03/31
[ruby-core:43428] [ruby-trunk - Feature #4085] Refinements and nested methods
From:
nahi <nakahiro@...>
Date:
2012-03-18 09:42:02 UTC
List:
ruby-core #43428
Issue #4085 has been updated by nahi.
Assignee set to shugo
----------------------------------------
Feature #4085: Refinements and nested methods
https://bugs.ruby-lang.org/issues/4085#change-24747
Author: shugo
Status: Open
Priority: Normal
Assignee: shugo
Category: core
Target version: 2.0.0
=begin
As I said at RubyConf 2010, I'd like to propose a new features called
"Refinements."
Refinements are similar to Classboxes. However, Refinements doesn't
support local rebinding as mentioned later. In this sense,
Refinements might be more similar to selector namespaces, but I'm not
sure because I have never seen any implementation of selector
namespaces.
In Refinements, a Ruby module is used as a namespace (or classbox) for
class extensions. Such class extensions are called refinements. For
example, the following module refines Fixnum.
module MathN
refine Fixnum do
def /(other) quo(other) end
end
end
Module#refine(klass) takes one argument, which is a class to be
extended. Module#refine also takes a block, where additional or
overriding methods of klass can be defined. In this example, MathN
refines Fixnum so that 1 / 2 returns a rational number (1/2) instead
of an integer 0.
This refinement can be enabled by the method using.
class Foo
using MathN
def foo
p 1 / 2
end
end
f = Foo.new
f.foo #=> (1/2)
p 1 / 2
In this example, the refinement in MathN is enabled in the definition
of Foo. The effective scope of the refinement is the innermost class,
module, or method where using is called; however the refinement is not
enabled before the call of using. If there is no such class, module,
or method, then the effective scope is the file where using is called.
Note that refinements are pseudo-lexically scoped. For example,
foo.baz prints not "FooExt#bar" but "Foo#bar" in the following code:
class Foo
def bar
puts "Foo#bar"
end
def baz
bar
end
end
module FooExt
refine Foo do
def bar
puts "FooExt#bar"
end
end
end
module Quux
using FooExt
foo = Foo.new
foo.bar # => FooExt#bar
foo.baz # => Foo#bar
end
Refinements are also enabled in reopened definitions of classes using
refinements and definitions of their subclasses, so they are
*pseudo*-lexically scoped.
class Foo
using MathN
end
class Foo
# MathN is enabled in a reopened definition.
p 1 / 2 #=> (1/2)
end
class Bar < Foo
# MathN is enabled in a subclass definition.
p 1 / 2 #=> (1/2)
end
If a module or class is using refinements, they are enabled in
module_eval, class_eval, and instance_eval if the receiver is the
class or module, or an instance of the class.
module A
using MathN
end
class B
using MathN
end
MathN.module_eval do
p 1 / 2 #=> (1/2)
end
A.module_eval do
p 1 / 2 #=> (1/2)
end
B.class_eval do
p 1 / 2 #=> (1/2)
end
B.new.instance_eval do
p 1 / 2 #=> (1/2)
end
Besides refinements, I'd like to propose new behavior of nested methods.
Currently, the scope of a nested method is not closed in the outer method.
def foo
def bar
puts "bar"
end
bar
end
foo #=> bar
bar #=> bar
In Ruby, there are no functions, but only methods. So there are no
right places where nested methods are defined. However, if
refinements are introduced, a refinement enabled only in the outer
method would be the right place. For example, the above code is
almost equivalent to the following code:
def foo
klass = self.class
m = Module.new {
refine klass do
def bar
puts "bar"
end
end
}
using m
bar
end
foo #=> bar
bar #=> NoMethodError
The attached patch is based on SVN trunk r29837.
=end
--
http://bugs.ruby-lang.org/