[ruby-core:115683] [Ruby master Misc#20056] Dir#chdir inconsistency with Dir.chdir

Issue #20056 has been updated by jeremyevans0 (Jeremy Evans).


zverok (Victor Shepelev) wrote:
> 1. There is no block form for `Dir#chdir`, unlike `Dir.chdir` (the form that will return to the previous directory when the block is finished)

`Dir#chdir` implicitly calls `Dir.chdir` or `Dir.fchdir` with the passed block, so the block form does work, but it apparently is not documented:

```ruby
p Dir.pwd
# => '/home/jeremy'

Dir.new('..').chdir{p Dir.pwd}
# => '/home'

p Dir.pwd
# => '/home/jeremy'
```

> 2. `Dir.chdir` returns `0`, while `Dir#chdir` returns `nil` (both seem to be not representing any particular internal value, just a hardcoded return value).

Return value being `nil` is expected.  I assume the only reason `Dir.chdir` returns `0` is backwards compatibility, as I highly doubt we would use `0` as the return value for success for new methods.

----------------------------------------
Misc #20056: Dir#chdir inconsistency with Dir.chdir
https://bugs.ruby-lang.org/issues/20056#change-105617

* Author: zverok (Victor Shepelev)
* Status: Open
* Priority: Normal
* Assignee: jeremyevans0 (Jeremy Evans)
----------------------------------------
I am not sure it is important; I just wanted to understand if this is intentional or accidental.

1. There is no block form for `Dir#chdir`, unlike `Dir.chdir` (the form that will return to the previous directory when the block is finished)
2. `Dir.chdir` returns `0`, while `Dir#chdir` returns `nil` (both seem to be not representing any particular internal value, just a hardcoded return value).






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