Error in T::Struct#validate_prop_name

[hdoan741]

Input

  class WizardName < T::Struct
    const :name, String
  end

Observed output

Failure/Error: const :name, String
NoMethodError:
  undefined method `match?' for :name:Symbol
  Did you mean?  match
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/props/decorator.rb:252:in `validate_prop_name'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/private/methods/call_validation.rb:126:in `call'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/private/methods/call_validation.rb:126:in `validate_call'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/private/methods/_methods.rb:238:in `block in _on_method_added'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/props/decorator.rb:213:in `prop_validate_definition!'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/private/methods/_methods.rb:240:in `call'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/private/methods/_methods.rb:240:in `block in _on_method_added'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/props/optional.rb:55:in `prop_validate_definition!'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/props/serializable.rb:317:in `prop_validate_definition!'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/props/decorator.rb:357:in `prop_defined'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/private/methods/_methods.rb:240:in `call'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/private/methods/_methods.rb:240:in `block in _on_method_added'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/props/_props.rb:109:in `prop'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/props/_props.rb:140:in `const'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/private/methods/call_validation.rb:126:in `call'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/private/methods/call_validation.rb:126:in `validate_call'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/sorbet-runtime-0.5.5295/lib/types/private/methods/_methods.rb:238:in `block in _on_method_added'
# ./spec/pluck_to_tstruct_spec.rb:20:in `<class:WizardName>'
# ./spec/pluck_to_tstruct_spec.rb:19:in `block in <top (required)>'
# ./spec/pluck_to_tstruct_spec.rb:4:in `<top (required)>'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/activesupport-5.1.7/lib/active_support/dependencies.rb:286:in `load'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/activesupport-5.1.7/lib/active_support/dependencies.rb:286:in `block in load'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/activesupport-5.1.7/lib/active_support/dependencies.rb:258:in `load_dependency'
# /home/travis/.rvm/gems/ruby-2.3.8/gems/activesupport-5.1.7/lib/active_support/dependencies.rb:286:in `load'

Expected behavior

There should be no error.

Seems to be introduced by this change:
68c732e#diff-296495687573a8a72557282b673db5f5R243

---

[hdoan741]

Looks like this is an issue on Ruby 2.3 only, because match? is introduced in 2.4

[hdoan741]

What are the Ruby versions you plan to support with Sorbet? I might remove Ruby 2.3 from our watch list if it's not in your supported list.

[DarkDimius]

The runtime support is actively tested on 2.6(the version Stripe runs) all other versions are under community support. Unless someone wants to step up and support +1, let's remove 2.3 from the list.

[jez]

Ruby 2.3 and 2.4 are no longer actively maintained, and Sorbet has no plans to test or support them going forwards.