Style-RedundantInterpolationUnfreeze.md

Pattern: Redundant interpolation unfreeze

Issue: -

Description

Before Ruby 3.0, interpolated strings followed the frozen string literal magic comment which sometimes made it necessary to explicitly unfreeze them. Ruby 3.0 changed interpolated strings to always be unfrozen which makes unfreezing them redundant.

Examples

# bad
+"#{foo} bar"

# bad
"#{foo} bar".dup

# good
"#{foo} bar"

Further Reading

• RuboCop - Style/RedundantInterpolationUnfreeze