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Adds a plugin for empty hash formatting #532

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Adds a plugin for empty hash formatting #532

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@adamof adamof commented Aug 15, 2025

Fixes #406

Adds the ability to stop the formatter from splitting empty hashes {} over multiple lines by introducing compact_empty_hash plugin.

Before formatting:

{ very_long_key_name_that_might_cause_issues: {}, another_very_long_key_name: {}, yet_another_key: {} }

After formatting without the plugin

{
  very_long_key_name_that_might_cause_issues: {
  },
  another_very_long_key_name: {
  },
  yet_another_key: {
  }
}

After formatting with the plugin

{
  very_long_key_name_that_might_cause_issues: {},
  another_very_long_key_name: {},
  yet_another_key: {}
}

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Successfully merging this pull request may close these issues.

Empty hash literal should be kept on one line
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