ruby.git/enumerator.c, branch v3_2_11

merge revision(s) f15123c34ce80f3928612befe2a9aaf4c9d27fda: [Backport #18743]

2024-02-25T09:29:16+00:00

	Fix stack trace for rescued StopIteration

	---
	 enumerator.c                 | 15 +++++++++++++--
	 test/ruby/test_enumerator.rb | 20 ++++++++++++++++++++
	 2 files changed, 33 insertions(+), 2 deletions(-)

Make Enumerartor.product return nil when called with a block

2022-12-21T10:13:15+00:00

Make product consistently yield an array of N elements instead of N arguments

2022-12-21T09:19:19+00:00

Inconsistency pointed out by @mame:

```
>> Enumerator.product([1], [2], [3]).to_a
=> [[1, 2, 3]]
>> Enumerator.product([1], [2]).to_a
=> [[1, 2]]
>> Enumerator.product([1]).to_a
=> [1]
>> Enumerator.product().to_a
=> [nil]
```

Got fixed as follows:

```
>> Enumerator.product([1], [2], [3]).to_a
=> [[1, 2, 3]]
>> Enumerator.product([1], [2]).to_a
=> [[1, 2]]
>> Enumerator.product([1]).to_a
=> [[1]]
>> Enumerator.product().to_a
=> [[]]
```

This was due to the nature of the N-argument funcall in Ruby.

Use "Fiber storage variables" consistently

2022-12-20T22:05:56+00:00

Improve documentation for fiber-scoped variables

2022-12-20T22:05:56+00:00

* Especially around Enumerator.

Never use the storage of another Fiber, that violates the whole design

2022-12-20T18:32:23+00:00

* See https://bugs.ruby-lang.org/issues/19078#note-30

Reject keyword arguments given to Enumerator::Product.new

2022-12-16T04:32:13+00:00

The use of keyword arguments should be reserved for future extension.

Introduce `Fiber#storage` for inheritable fiber-scoped variables. (#6612)

2022-12-01T10:00:33+00:00

`remain` no longer starts with 0

2022-11-25T07:11:17+00:00

[Bug #18971] Add precheck to enumerator

2022-11-25T07:11:17+00:00