"requiring version.rb" strategy has some issues.
- cannot work when cross-compiling
- often introduces wrong namespace
- must know the superclasses
- costs at each runtime than at build-time
etc.
In Ruby 2.7.1 SimpeDelegator cannot be used without requiring `delegate` this PR adds the require to the first example for each class so that devs don't have to hunt for what require to use.
This freezes the clone even if the receiver is not frozen. It
is only for consistency with freeze: false not freezing the clone
even if the receiver is frozen.
Because Object#clone is now partially implemented in Ruby and
not fully implemented in C, freeze: nil must be supported to
provide the default behavior of only freezing the clone if the
receiver is frozen.
This requires modifying delegate and set, to set freeze: nil
instead of freeze: true as the keyword parameter for
initialize_clone. Those are the two libraries in stdlib that
override initialize_clone.
Implements [Feature #16175]
In 2.6, SimpleDelegator would always use the target `respond_to?`
In 2.7.0 it doesn't if the target does not inherit from Object.
This breaks compatibility for delegated objects that inherit
from BasicObject and redefine `respond_to?`.
This makes it possible to initialize_clone to correctly not freeze
internal state if the freeze: false keyword is passed to clone.
If clone is called with freeze: true or no keyword, do not pass
a second argument to initialize_clone to keep backwards
compatibility.
This makes it so that external libraries that override
initialize_clone but do not support the freeze keyword will fail
with ArgumentError if passing freeze: false to clone. I think that
is better than the current behavior, which succeeds but results in
an unfrozen object with frozen internals.
Fix related issues in set and delegate in stdlib.
Fixes [Bug #14266]
This removes the related tests, and puts the related specs behind
version guards. This affects all code in lib, including some
libraries that may want to support older versions of Ruby.
For BasicObject, bind the Kernel respond_to? instance method to the
object and call it instead of calling the method directly.
Also, use bind_call(recv, ...) for better performance.
Fixes [Bug #16127]
This approach uses a flag bit on the final hash object in the regular splat,
as opposed to a previous approach that used a VM frame flag. The hash flag
approach is less invasive, and handles some cases that the VM frame flag
approach does not, such as saving the argument splat array and splatting it
later:
ruby2_keywords def foo(*args)
@args = args
bar
end
def bar
baz(*@args)
end
def baz(*args, **kw)
[args, kw]
end
foo(a:1) #=> [[], {a: 1}]
foo({a: 1}, **{}) #=> [[{a: 1}], {}]
foo({a: 1}) #=> 2.7: [[], {a: 1}] # and warning
foo({a: 1}) #=> 3.0: [[{a: 1}], {}]
It doesn't handle some cases that the VM frame flag handles, such as when
the final hash object is replaced using Hash#merge, but those cases are
probably less common and are unlikely to properly support keyword
argument separation.
Use ruby2_keywords to handle argument delegation in the delegate library.
Public instance methods added to a delegated class after the
creation of the delegate class were not returned by the
public_instance_methods class method of the delegate class.
Protected instance methods in the delegated class when the
delegate class is created were returned by the public_methods
instance method of the delegate class.
Patch mostly from Kenichi Kamiya <kachick1@gmail.com> in
GitHub pull request 926. Minor changes to get it to apply,
and to fix tests after applying by me.
Fixes [Bug #11512]
Methods that return classes often module_eval the given block
(e.g. Class.new and Struct.new). This allows DelegateClass to
work similarly. This makes it easier to use DelegateClass
directly without subclassing, so as not to create an unnecessary
subclass.
Implements [Feature #15842]
Instead, look for instance methods of Kernel.
Otherwise, instance methods of Module (which are methods of Kernel
itself) are mistakenly believed to exist, and it fails when calling
Kernel.instance_method().
Closes: https://github.com/ruby/ruby/pull/1422
If uplevel keyword is given, the warning message is prepended
with caller file and line information and the string "warning: ".
The use of the uplevel keyword makes Kernel#warn format output
similar to how rb_warn formats output.
This patch modifies net/ftp and net/imap to use Kernel#warn
instead of $stderr.puts or $stderr.printf, since they are used
for printing warnings.
This makes lib/cgi/core and tempfile use $stderr.puts instead of
warn for debug logging, since they are used for debug printing
and not for warning.
This does not modify bundler, rubygems, or rdoc, as those are
maintained outside of ruby and probably wish to remain backwards
compatible with older ruby versions.
rb_warn_m code is originally from nobu, but I've changed it
so that it only includes the path and lineno from uplevel
(not the method), and also prepends the string "warning: ",
to make it more similar to rb_warn.
From: Jeremy Evans code@jeremyevans.net
Signed-off-by: Urabe Shyouhei shyouhei@ruby-lang.org
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61155 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/delegate.rb (eql?): Delegate to `eql?` of the inner object.
based on the patch by giginet <giginet.net@gmail.com>.
[ruby-core:76950] [Bug #12684]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59167 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
When you change this to true, you may need to add more tests.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/delegate.rb (Delegator): keep source information methods
which start and end with '__'. [ruby-core:58572] [Bug #9155]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44630 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/delegate.rb (Delegator#method_missing): ignore the target if not
set, and delegate to global methods. [ruby-core:58572] [Bug #9155]
* lib/delegate.rb (Delegator#respond_to_missing): ditto.
* lib/delegate.rb (SimpleDelegator#__getobj__): yield and return if
not delegated but a block is given, like as Hash#fetch.
* lib/delegate.rb (DelegateClass#__getobj__): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43984 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Hiroshi SHIBATA