Class: Operation

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

Overview

The Operation class is the Hitsuji representation of an equation, and its properties include a name, a value and a block. The value is an Linker with read-write properties, and the values in this Linker are parsed into the block for execution. This block is only executed upon read of dependent values. Once the Operation is bound, a seperate method must be used to read them. Linkers are the main interface between Items and Operations. Examples of its use can be seen in the documentation for the Hitsuji.operation method.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, input, block) ⇒ Operation

Returns a new instance of Operation.



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# File 'lib/subsystem.rb', line 39

def initialize(name, input, block)
  @name = name
  @input = input
  src = MethodSource.source_helper(block.source_location)
  @block = 'proc ' + src.match(/(do|\{)+?(.|\s)*(end|\})+?/).to_s
end

Instance Attribute Details

#block ⇒ Object (readonly)

Returns the value of attribute block.



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# File 'lib/subsystem.rb', line 61

def block
  @block
end

#input ⇒ Object

Returns the value of attribute input.



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# File 'lib/subsystem.rb', line 62

def input
  @input
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/subsystem.rb', line 62

def name
  @name
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/subsystem.rb', line 46

def call
  eval(@block).call(recurse(@input.value))
end