Class: RuboCop::Cop::Naming::PredicatePrefix

Examples:

NamePrefix: [‘is_’, ‘has_’, ‘have_’] (default)

# bad def is_even(value) end # When ForbiddenPrefixes: ['is_', 'has_', 'have_'] (default) # good def even?(value) end # When ForbiddenPrefixes: [] # good def is_even?(value) end

NamePrefix: [‘seems_to_be_’]

# bad def seems_to_be_even(value) end # When ForbiddenPrefixes: ['seems_to_be_'] # good def even?(value) end # When ForbiddenPrefixes: [] # good def seems_to_be_even?(value) end

AllowedMethods: [‘is_a?’] (default)

# Despite starting with the `is_` prefix, this method is allowed # good def is_a?(value) end

AllowedMethods: [‘is_even?’]

# good def is_even?(value) end

UseSorbetSigs: false (default)

# bad sig { returns(String) } def is_this_thing_on "yes" end # good - Sorbet signature is not evaluated sig { returns(String) } def is_this_thing_on? "yes" end

UseSorbetSigs: true

# bad sig { returns(T::Boolean) } def odd(value) end # good sig { returns(T::Boolean) } def odd?(value) end

MethodDefinitionMacros: [‘define_method’, ‘define_singleton_method’] (default)

# bad define_method(:is_even) { |value| } # good define_method(:even?) { |value| }

MethodDefinitionMacros: [‘def_node_matcher’]

# bad def_node_matcher(:is_even) { |value| } # good def_node_matcher(:even?) { |value| }