activesupport: Update return types of #present? and #blank?
#815
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This updates the return types of `#present?` and `#blank?` to narrow the type of receiver possibly. Since 1.10, Steep can narrow the type of receiver via the return type of the method when the type of receiver is union. For example, a receiver typed as will be narrowed to `String` on the `if present?` block, and be narrowed to `String | nil` on the `else` block because `String#present?` returns bool and `NilClass#present?` returns false. ```ruby var = ... # String | nil if var.present? # var is narrowed to String else # var is narrowed to String | nil end ``` refs: * https://github.com/soutaro/steep/wiki/Release-Note-1.10 (unreleased yet) * soutaro/steep#1497
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ksss
reviewed
Mar 11, 2025
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/merge |
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This updates the return types of
#present?and#blank?to narrow the type of receiver possibly.Since 1.10, Steep can narrow the type of receiver via the return type of the method when the type of receiver is union. For example, a receiver typed as will be narrowed to
Stringon theif present?block, and be narrowed toString | nilon theelseblock becauseString#present?returns bool andNilClass#present?returns false.refs: