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Issue #13005 has been updated by Yukihiro Matsumoto.
Status changed from Open to Closed
```
o.a = 1 rescue $!.class
```
is parsed as
```
o.a = (1 rescue $!.class)
```
Try
```
(o.a = 1) rescue $1.class
```
Matz.
----------------------------------------
Bug #13005: Inline rescue is inconsistent when rescuing NoMethodError
https://bugs.ruby-lang.org/issues/13005#change-61868
* Author: Josh Cheek
* Status: Closed
* Priority: Normal
* Assignee:
* ruby -v: ruby 2.4.0dev (2016-11-16 trunk 56815) [x86_64-darwin15]
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
```ruby
o = "some object"
class << o
private
attr_accessor :a
end
# GETTER can be rescued in a begin-block or inline
begin o.a
rescue; $!.class # => NoMethodError
end
o.a rescue $!.class # => NoMethodError
# SETTER can be rescued in a begin-block but NOT inline!
begin o.a = 1
rescue; $!.class # => NoMethodError
end
o.a = 1 rescue $!.class
# ~> NoMethodError
# ~> private method `a=' called for "some object":String
# ~> Did you mean? a
# ~>
# ~> program.rb:18:in `<main>'
```
--
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