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Contents
module Trestle
class Breadcrumb
attr_reader :label, :path
def initialize(label, path=nil)
@label, @path = label, path
end
def ==(other)
label == other.label && path == other.path
end
def self.cast(obj)
case obj
when Breadcrumb
obj
when String
new(obj)
when Array
new(*obj)
when NilClass, false
nil
else
raise ArgumentError, "Unable to cast #{obj.inspect} to Breadcrumb"
end
end
class Trail
include Enumerable
def initialize(breadcrumbs=[])
@breadcrumbs = Array(breadcrumbs).compact
end
def ==(other)
to_a == other.to_a
end
def dup
self.class.new(@breadcrumbs.dup)
end
def append(label, path=nil)
@breadcrumbs << Breadcrumb.new(label, path)
end
def prepend(label, path=nil)
@breadcrumbs.unshift(Breadcrumb.new(label, path))
end
delegate :each, :first, :last, to: :@breadcrumbs
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems