Module: Extensions::MethodHooker::ClassMethods

Defined in:
lib/coronate/extensions/method_hooker.rb

Instance Method Summary collapse

Instance Method Details

#before_class_method(&block) ⇒ Object



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# File 'lib/coronate/extensions/method_hooker.rb', line 59

def before_class_method &block
  before_each_method :class, &block
end

#before_each_method(type, &block) ⇒ Object



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# File 'lib/coronate/extensions/method_hooker.rb', line 12

def before_each_method type, &block
  singleton = class << self; self; end
  case type
    when :instance
      this = self
      singleton.instance_eval do
        define_method :method_added do |name|
          last = instance_variable_get(:@__last_methods_added)
          return if last and last.include?(name)
          with = :"#{name}_with_before_each_method"
          without = :"#{name}_without_before_each_method"
          instance_variable_set(:@__last_methods_added, [name, with, without])
          this.class_eval do
            define_method with do |*args, &blk|
              instance_exec(name, args, blk, &block)
              send without, *args, &blk
            end
            alias_method without, name
            alias_method name, with
          end
          instance_variable_set(:@__last_methods_added, nil)
        end
      end
    when :class
      this = self
      singleton.instance_eval do
        define_method :singleton_method_added do |name|
          return if name == :singleton_method_added
          last = instance_variable_get(:@__last_singleton_methods_added)
          return if last and last.include?(name)
          with = :"#{name}_with_before_each_method"
          without = :"#{name}_without_before_each_method"
          instance_variable_set(:@__last_singleton_methods_added, [name, with, without])
          singleton.class_eval do
            define_method with do |*args, &blk|
              instance_exec(name, args, blk, &block)
              send without, *args, &blk
            end
            alias_method without, name
            alias_method name, with
          end
          instance_variable_set(:@__last_singleton_methods_added, nil)
        end
      end
  end
end

#before_instance_method(&block) ⇒ Object



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# File 'lib/coronate/extensions/method_hooker.rb', line 63

def before_instance_method &block
  before_each_method :instance, &block
end