Issue #12944 has been updated by Jeremy Evans.

File 0001-Change-Kernel-warn-to-call-Warning.warn.patch added

The attached patch uses `rb_ary_join` to create the string to pass to `Warning.warn`, which should do a better job of handling corner cases such as `warn ["foo", "bar"]`.

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Feature #12944: Change Kernel#warn to call Warning.warn
https://bugs.ruby-lang.org/issues/12944#change-62016

* Author: Jeremy Evans
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 2.4
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Currently, Kernel#warn is basically the same as $stderr.puts.  With the new Warning.warn support in ruby 2.4, it makes sense for Kernel#warn to call Warning.warn, otherwise you will not be able to use Warning.warn to filter/process warning messages generated by Kernel#warn.

The Kernel#warn API is different than the Warning.warn API, the attached patch tries to get similar behavior, but there are probably corner cases where the behavior is different.

---Files--------------------------------
0001-Change-Kernel-warn-to-call-Warning.warn.patch (1.88 KB)
0001-Change-Kernel-warn-to-call-Warning.warn.patch (1.89 KB)
0001-Change-Kernel-warn-to-call-Warning.warn.patch (2.36 KB)
0001-Change-Kernel-warn-to-call-Warning.warn.patch (2.3 KB)


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