From: brandon.j.fish@...
Date: 2021-05-26T17:21:59+00:00
Subject: [ruby-core:104058] [Ruby master Bug#17889] Enumerator::Lazy#with_index should return size

Issue #17889 has been reported by bjfish (Brandon Fish).

----------------------------------------
Bug #17889: Enumerator::Lazy#with_index should return size
https://bugs.ruby-lang.org/issues/17889

* Author: bjfish (Brandon Fish)
* Status: Open
* Priority: Normal
* ruby -v: 3.0.0
* Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
----------------------------------------
The following example shows `#size` returns `nil` when the `size` was provided to `new` as `3`.

**Example** 
``` ruby
p Enumerator::Lazy.new([1, 2, 3], 3){|y, v| y << v}.with_index.size
```
**Expected Result**
``` ruby
3
```
**Actual Result**
``` ruby
nil
```



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