Sha256: 5a6d2a40fad3176ccfd2ea20e0be7bdbbd50a54b60fa92d5acc56402f2da8490
Contents?: true
Size: 706 Bytes
Versions: 5
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Stored size: 706 Bytes
Contents
module DataMapper
##
#
# DataMapper's DependencyQueue is used to store callbacks for classes which
# may or may not be loaded already.
#
class DependencyQueue
def initialize
@dependencies = Hash.new { |h,k| h[k] = [] }
end
def add(class_name, &callback)
@dependencies[class_name] << callback
resolve!
end
def resolve!
@dependencies.each do |class_name, callbacks|
begin
klass = Object.find_const(class_name)
callbacks.each do |callback|
callback.call(klass)
end
callbacks.clear
rescue NameError
end
end
end
end # class DependencyQueue
end # module DataMapper
Version data entries
5 entries across 5 versions & 3 rubygems