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Contents
module Volt
module ReactiveAccessors
module ClassMethods
# Create a method to read a reactive value from an instance value. If it
# is not setup, create it so it can be updated through the reactive value
# at a later point.
def __reactive_dependency_get(var_name)
value_dep = instance_variable_get(:"@__#{var_name}_dependency")
value_dep ||= instance_variable_set(:"@__#{var_name}_dependency", Dependency.new)
end
def reactive_reader(*names)
names.each do |name|
var_name = :"@#{name}"
define_method(name.to_sym) do
value = instance_variable_get(var_name)
self.class.__reactive_dependency_get(name).depend
value
end
end
end
def reactive_writer(*names)
names.each do |name|
var_name = :"@#{name}"
define_method("#{name}=") do |new_value|
instance_variable_set(var_name, new_value)
self.class.__reactive_dependency_get(name).changed!
end
end
end
def reactive_accessor(*names)
reactive_reader(*names)
reactive_writer(*names)
end
end
def self.included(base)
base.send :extend, ClassMethods
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems