From: "taichi730 (Taichi Ishitani)" <noreply@...>
Date: 2022-09-08T13:21:32+00:00
Subject: [ruby-core:109848] [Ruby master Bug#18998] Kernel#Integer does not convert SimpleDelegator expectly

Issue #18998 has been reported by taichi730 (Taichi Ishitani).

----------------------------------------
Bug #18998: Kernel#Integer does not convert SimpleDelegator expectly
https://bugs.ruby-lang.org/issues/18998

* Author: taichi730 (Taichi Ishitani)
* Status: Open
* Priority: Normal
* ruby -v: ruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [x86_64-linux]
* Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN
----------------------------------------
Kernel#Integer method doens not convert a SimpleDelegator object of which value is a String.
This is an sample code.

``` ruby
require 'delegate'
p Integer(SimpleDelegator.new('0x10'))
```

I expect Kernel#Integer to convert the input value as a String and the expected returned value is `16`.
Hoever the actual returned value is `0` so it's seemed that `#to_i` method is just called.

```
taichi@LAPTOP-TVTKLNFD:temp
$ cat test.rb
require 'delegate'
p Integer(SimpleDelegator.new('0x10'))

taichi@LAPTOP-TVTKLNFD:temp
$ ruby test.rb
0
```

Which is the correct behavior?




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