class RuboCop::Cop::Lint::DuplicateSetElement

Checks for duplicate literal, constant, or variable elements in ‘Set` and `SortedSet`.

@example

# bad
Set[:foo, :bar, :foo]

# good
Set[:foo, :bar]

# bad
Set.new([:foo, :bar, :foo])

# good
Set.new([:foo, :bar])

# bad
[:foo, :bar, :foo].to_set

# good
[:foo, :bar].to_set

# bad
SortedSet[:foo, :bar, :foo]

# good
SortedSet[:foo, :bar]

# bad
SortedSet.new([:foo, :bar, :foo])

# good
SortedSet.new([:foo, :bar])