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Contents
module Contracts
module Engine
# Special case of contracts engine for eigenclasses
# We don't care about eigenclass of eigenclass at this point
class Eigenclass < Base
# Class that owns this eigenclass
attr_accessor :owner_class
# Automatically enables eigenclass engine if it is not
# Returns its engine
# NOTE: Required by jruby in 1.9 mode. Otherwise inherited
# eigenclasses don't have their engines
#
# @param [Class] eigenclass - class in question
# @param [Class] owner - owner of eigenclass
# @return [Engine::Eigenclass]
def self.lift(eigenclass, owner)
return Engine.fetch_from(eigenclass) if Engine.applied?(eigenclass)
Target.new(eigenclass).apply(Eigenclass)
eigenclass.extend(MethodDecorators)
# FIXME; this should detect what user uses `include Contracts` or
# `include Contracts;;Core`
eigenclass.send(:include, Contracts)
Engine.fetch_from(owner).set_eigenclass_owner
Engine.fetch_from(eigenclass)
end
# No-op for eigenclasses
def set_eigenclass_owner
end
# Fetches just eigenclasses decorators
def all_decorators
pop_decorators
end
private
# Fails when contracts are not included in owner class
def validate!
fail ContractsNotIncluded unless owner?
end
def owner?
!!owner_class
end
end
end
end
Version data entries
17 entries across 17 versions & 6 rubygems