Add AST::InPatternNode node
#183
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This PR adds `AST::InPatternNode` node.
It aims to make access to `in` pattern node of the pattern matching syntax
convenient and readable.
For example, pattern matching syntax AST can use `in_pattern.body` and
prevents the following error:
```console
NoMethodError:
undefined method `body' for s(:in_pattern,
s(:array_pattern,
s(:match_var, :a)), nil,
s(:int, 1)):RuboCop::AST::Node
```
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@marcandre @bbatsov I'd like to use this PR's feature in rubocop/rubocop#9825. Can you review, merge, and release? |
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The change looks good to me. I'll do a release now. |
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Done. |
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@bbatsov Thank you! |
koic
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May 26, 2021
This PR adds new `Lint/EmptyInPattern` cop for Ruby 2.7's pattern matching. It checks for the presence of `in` branches without a body. ```ruby # bad case condition in [a] do_something in [a, b] end # good case condition in [a] do_something in [a, b] nil end # good - AllowComments: true (default) case condition in [a] do_something in [a, b] # noop end # bad - AllowComments: false case condition in [a] do_something in [a, b] # noop end ``` This cop is similar to `Lint/EmptyWhen`, but with different supported syntax and Ruby version (requires 2.7 or higher). And this PR use rubocop/rubocop-ast#183 feature, so it requires RuboCop AST 1.6.0 or higher.
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Oh, this fell through the cracks, sorry 😅 Don't hesitate to ping me after 1 or 2 days |
bbatsov
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May 27, 2021
This PR adds new `Lint/EmptyInPattern` cop for Ruby 2.7's pattern matching. It checks for the presence of `in` branches without a body. ```ruby # bad case condition in [a] do_something in [a, b] end # good case condition in [a] do_something in [a, b] nil end # good - AllowComments: true (default) case condition in [a] do_something in [a, b] # noop end # bad - AllowComments: false case condition in [a] do_something in [a, b] # noop end ``` This cop is similar to `Lint/EmptyWhen`, but with different supported syntax and Ruby version (requires 2.7 or higher). And this PR use rubocop/rubocop-ast#183 feature, so it requires RuboCop AST 1.6.0 or higher.
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This PR adds
AST::InPatternNodenode.It aims to make access to
inpattern node of the pattern matching syntax convenient and readable.For example, pattern matching syntax AST can use
in_pattern.bodyand prevents the following error: