Class: Chainer::Method

Inherits:
Object
  • Object
show all
Defined in:
lib/chainer/method.rb

Overview

Pipes method names on a context class

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(context, value) ⇒ Method

Initializes pipe wrapper

Parameters:

  • context (Object) —

    Context to call piped methods on

  • value (Object) —

    Value to pass to the next method in the pipe



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# File 'lib/chainer/method.rb', line 17

def initialize(context, value)
  @context = context
  @value = value.is_a?(self.class) ? value.value : value
  freeze
end

Instance Attribute Details

#context ⇒ Object (readonly)

Returns Context to call piped methods on.

Returns:

  • (Object) —

    Context to call piped methods on



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# File 'lib/chainer/method.rb', line 11

def context
  @context
end

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/chainer/method.rb', line 11

attr_reader :context, :value

Instance Method Details

#>>(method_name) ⇒ self

The “pipe” operator. Calls passed object with the wrapped value

Parameters:

  • method_name (Symbol) —

    Method name to be called on the context object

Returns:

  • (self) —

    Wrapped result of calculations



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# File 'lib/chainer/method.rb', line 28

def >>(method_name) # rubocop:disable Style/OpMethod
  self.class.new context, context.send(method_name, value)
end