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module Representable
# Stores Definitions from ::property. It preserves the adding order (1.9+).
# Same-named properties get overridden, just like in a Hash.
#
# Overwrite definition_class if you need a custom Definition object (helpful when using
# representable in other gems).
class Config < ::Declarative::Definitions
def initialize(*)
super
@wrap = nil
end
def remove(name)
delete(name.to_s)
end
def options # FIXME: this is not inherited.
@options ||= {}
end
def wrap=(value)
value = value.to_s if value.is_a?(Symbol)
@wrap = ::Declarative::Option(value, instance_exec: true, callable: Uber::Callable)
end
# Computes the wrap string or returns false.
def wrap_for(represented, *args, &block)
return unless @wrap
value = @wrap.(represented, *args)
return value if value != true
infer_name_for(represented.class.name)
end
private
def infer_name_for(name)
name.to_s.split('::').last.
gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
gsub(/([a-z\d])([A-Z])/,'\1_\2').
downcase
end
end
end
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