A "return" statement in a Proc in a lambda like: lambda{ proc{ return }.call }
should return outer lambda block. However, the inner Proc can become
orphan Proc from the lambda block. This "return" escape outer-scope
like method, but this behavior was decieded as a bug.
[Bug #17105]
This patch raises LocalJumpError by checking the proc is orphan or
not from lambda blocks before escaping by "return".
Added by ko1 (Koichi Sasada) over 4 years ago
fix return from orphan Proc in lambda
A "return" statement in a Proc in a lambda like:
lambda{ proc{ return }.call }should return outer lambda block. However, the inner Proc can become
orphan Proc from the lambda block. This "return" escape outer-scope
like method, but this behavior was decieded as a bug.
[Bug #17105]
This patch raises LocalJumpError by checking the proc is orphan or
not from lambda blocks before escaping by "return".
Most of tests are written by Jeremy Evans
https://github.com/ruby/ruby/pull/4223