[ruby-core:83591] [Ruby trunk Bug#14062] Top-level return allows an argument

Issue #14062 has been updated by duerst (Martin D端rst).


Wouldn't this be equivalent to C's return statement in main()?

It is used to tell the outer process (usually a shell) about the success (0) or failure (anything else than 0) of the program.

In the average shell, you should be able to test it with e.g.
```
ruby test.rb && echo "Previous process was successful."
```
which would not print the `"Previous process was successful."` text because the return value was something else than 0.

----------------------------------------
Bug #14062: Top-level return allows an argument
https://bugs.ruby-lang.org/issues/14062#change-67615

* Author: Eregon (Benoit Daloze)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.5.0dev (2017-10-26 trunk 60450) [x86_64-linux]
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN
----------------------------------------
~~~ ruby
puts "Here"
return 42 # or :foo, or any value
~~~

~~~
ruby test.rb
Here
~~~

Should it be a SyntaxError, as mentioned in https://bugs.ruby-lang.org/issues/4840#note-24 ?
It seems confusing to accept it silently, as one could expect the exact code to be affected by it (that should not be the case imho).

Discovered in https://github.com/ruby/spec/pull/530



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