From: "kddnewton (Kevin Newton) via ruby-core" <ruby-core@...>
Date: 2024-05-07T13:25:04+00:00
Subject: [ruby-core:117791] [Ruby master Bug#20468] Segfault on safe navigation in for target

Issue #20468 has been updated by kddnewton (Kevin Newton).


@nobu it's the same possibilities in `for`, `rescue`, and multi-write. As in:

```ruby
for (foo, @foo, @@foo, $foo, Foo, Foo::Foo, foo.foo, foo[foo]) in bar; end

begin; rescue => foo; end
begin; rescue => @foo; end
begin; rescue => @@foo; end
begin; rescue => $foo; end
begin; rescue => Foo; end
begin; rescue => Foo::Foo; end
begin; rescue => foo.foo; end
begin; rescue => foo[foo]; end

(foo, @foo, @@foo, $foo, Foo, Foo::Foo, foo.foo, foo[foo]) = bar
```

----------------------------------------
Bug #20468: Segfault on safe navigation in for target
https://bugs.ruby-lang.org/issues/20468#change-108198

* Author: kddnewton (Kevin Newton)
* Status: Open
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
----------------------------------------
```ruby
for foo&.bar in []; end
```



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