wied03 (Brady Wied)
- Login: wied03
- Registered on: 04/30/2016
- Last sign in: 04/30/2016
Issues
| open | closed | Total | |
|---|---|---|---|
| Assigned issues | 0 | 0 | 0 |
| Reported issues | 1 | 0 | 1 |
Activity
05/19/2016
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11:04 PM Ruby Feature #12334: Final/Readonly Support for Fields / Instance Variables
- Daniel: It might be easiest to go read about how readonly works in C#.
This is quite different than a constant because it can very with each instance of an object since a "readonly ivar" is set in the initializer.
Private methods a...
05/02/2016
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- I know that it has nothing to do with freezing. I was just using that as an example of something where Ruby has decided to give the developer a tool to control mutation.
@Tsuyoshi - Yes a constant like that is sort of what I'm describ... -
- If the developer had to take care of all of this, we probably would not have freezing right? You could make the case that it should be up to the developer to not mutate a frozen object. I'm not sure what the exact thought process was beh...
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- Maybe leaving it to the developer or design/code reviewing is the best way. I do think there is something to the idea of controlled mutation though. It's a good middle ground between what the functional language people are pushing for (t...
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- If the feature should be rejected, I can live with that, but I don't think we had the same idea of what I was requesting here.
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- Here is an example:
~~~ruby
class Foo
attr_reader :foo
def initialize
@foo = 123
end
def accidental_mutate
@foo = 456 # Ruby doesn't give me any way to prevent this as of now
end
end
class Foo
attr... -
- This feature request is not about being external to the object.
I can have multiple Ruby methods in the same class besides the initialize method that all do @some_ivar = 123 or @some_ivar=456. This is about trying to guard against th...
05/01/2016
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- Sorry, I should have used correct terminology. By fields, I meant instance variables.
04/30/2016
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- This sort of relates to https://bugs.ruby-lang.org/issues/11911
C# through 'readonly' and Java through 'final' variables/fields allow me to only allow assigning a field in the initializer. It might be nice to embrace some controlled m...