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Versions: 17
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Stored size: 1.29 KB
Contents
# frozen_string_literal: true
module Mustermann
# Mixin that adds support for multiple versions of the same type.
# @see Mustermann::Rails
# @!visibility private
module Versions
# Checks if class has mulitple versions available and picks one that matches the version option.
# @!visibility private
def new(*args, version: nil, **options)
return super(*args, **options) unless versions.any?
self[version].new(*args, **options)
end
# @return [Hash] version to subclass mapping.
# @!visibility private
def versions
@versions ||= {}
end
# Defines a new version.
# @!visibility private
def version(*list, inherit_from: nil, &block)
superclass = self[inherit_from] || self
subclass = Class.new(superclass, &block)
list.each { |v| versions[v] = subclass }
end
# Resolve a subclass for a given version string.
# @!visibility private
def [](version)
return versions.values.last unless version
detected = versions.detect { |v,_| version.start_with?(v) }
raise ArgumentError, 'unsupported version %p' % version unless detected
detected.last
end
# @!visibility private
def name
super || superclass.name
end
# @!visibility private
def inspect
name
end
end
end
Version data entries
17 entries across 17 versions & 2 rubygems