Created
July 8, 2014 15:25
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Dual-access of objects that replace primitive data structure
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| require 'logger' | |
| module PrimitiveAccess | |
| def self.included(base) | |
| base.send(:include, InstanceMethods) | |
| end | |
| module InstanceMethods | |
| def primitive_logger | |
| @logger ||= Logger.new(STDOUT) | |
| end | |
| def []=(key, value) | |
| primitive_logger.warn "Hash-based setter of object for key: #{key}" | |
| send("#{key}=", value) | |
| end | |
| def [](key) | |
| primitive_logger.warn "Hash-based getter of object for key: #{key}" | |
| send("#{key}") | |
| end | |
| end | |
| end | |
| class Future | |
| include PrimitiveAccess | |
| attr_accessor :foo, :blah | |
| def initialize(attributes) | |
| attributes.each { |k,v| send("#{k}=", v) } | |
| end | |
| end | |
| primitive = { foo: 'bar', blah: 'bah' } | |
| future = Future.new(primitive) | |
| puts future.foo # => 'bar' | |
| puts future[:foo] # => 'bar' | |
| future.foo = 'yah' | |
| puts future.foo # => 'yah' | |
| puts future[:foo] # => 'yah' | |
| future[:foo] = 'nah' | |
| puts future.foo # => 'nah' | |
| puts future[:foo] # => 'nah' |
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