Issue #12300 has been updated by Shyouhei Urabe.
Sounds much simpler than the previous one to understand what is happening. Also it seems backwards-compatible.
Given the needs of this kind, I'd like to +1.
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Feature #12300: Allow Object#clone to take freeze: false keyword argument to not freeze the clone
https://bugs.ruby-lang.org/issues/12300#change-58159
* Author: Jeremy Evans
* Status: Open
* Priority: Normal
* Assignee:
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This allows Object#clone to not freeze the resulting object, which fixes a long standing problem in ruby in that you cannot get an unfrozen copy of an object that includes a copy of the object's singleton class. Previously, clone always returned a frozen object, and dup did not copy the singleton class. This adds the ability to get an unfrozen clone of an object that includes a copy of the object's singleton class, allowing further modification.
Among other things, this allows the ability to create modified clones of objects that have singleton classes:
~~~
class A
def clone(arg)
obj = super(freeze: false)
# modify obj based on arg
obj.freeze
end
end
~~~
I think this is a simpler and more flexible approach to the same problem that #12092 tries to solve.
---Files--------------------------------
0001-Allow-clone-to-take-freeze-false-keyword-argument-to.patch (3.93 KB)
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