[ruby-core:99972] [Ruby master Bug#15409] OpenStruct error when attribute is called 'method'

Issue #15409 has been updated by jeremyevans0 (Jeremy Evans).


marcandre (Marc-Andre Lafortune) wrote in #note-9:
> I opened a PR that resolves this: https://github.com/ruby/ostruct/pull/15

I reviewed the PR and the changes look good to me.

In regards to OpenStruct in general, I agree with @marcandre and @mame that it is an antipattern. I think it is almost always preferable to use a plain hash.  Personally, I would like to move ostruct from default gems to bundled gems, and at some point consider removing it as a bundled gem.  The only complicating factor is json has a dependency on ostruct. JSON::GenericObject inherits from OpenStruct, though as far as I can tell, it doesn't seem to be used internally.

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Bug #15409: OpenStruct error when attribute is called 'method'
https://bugs.ruby-lang.org/issues/15409#change-87511

* Author: elioncho (El僘s Orozco)
* Status: Assigned
* Priority: Normal
* Assignee: marcandre (Marc-Andre Lafortune)
* ruby -v: ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-darwin16]
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN
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The following error is shown when you try to access an OpenStruct with a property called method:

`method': wrong number of arguments (given 0, expected 1) (ArgumentError)

To replicate:

~~~ ruby
require 'ostruct'
o = OpenStruct.new({ method: 'get' })
o.method
~~~


The expected behavior should be to return 'get'




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