is_disjoint.md

Pattern: Use of Set.intersection(_:).isEmpty

Issue: -

Description

Prefer using Set.isDisjoint(with:) over Set.intersection(_:).isEmpty.

Examples of correct code:

_ = Set(syntaxKinds).isDisjoint(with: commentAndStringKindsSet)


let isObjc = !objcAttributes.isDisjoint(with: dictionary.enclosedSwiftAttributes)


_ = Set(syntaxKinds).intersection(commentAndStringKindsSet)


_ = !objcAttributes.intersection(dictionary.enclosedSwiftAttributes)

Examples of incorrect code:

_ = Set(syntaxKinds).↓intersection(commentAndStringKindsSet).isEmpty


let isObjc = !objcAttributes.↓intersection(dictionary.enclosedSwiftAttributes).isEmpty

Further Reading

• SwiftLint - Is Disjoint