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Contents
module Vagrant
module Util
module Presence
extend self
# Determines if the given object is "present". A String is considered
# present if the stripped contents are not empty. An Array/Hash is
# considered present if they have a length of more than 1. "true" is
# always present and `false` and `nil` are always not present. Any other
# object is considered to be present.
#
# @return [true, false]
def present?(obj)
case obj
when String
!obj.strip.empty?
when Symbol
!obj.to_s.strip.empty?
when Array
!obj.compact.empty?
when Hash
!obj.empty?
when TrueClass, FalseClass
obj
when NilClass
false
when Object
true
end
end
# Returns the presence of the object. If the object is {present?}, it is
# returned. Otherwise `false` is returned.
#
# @return [Object, false]
def presence(obj)
if present?(obj)
obj
else
false
end
end
end
end
end
Version data entries
58 entries across 54 versions & 6 rubygems