Class: RVM::Interpreter::SimpleAssignment

Inherits:
Assignment show all
Defined in:
lib/rvm/optimisation.rb

Overview

it to be a string from the beginning

Instance Attribute Summary

Attributes inherited from Element

#pos

Instance Method Summary collapse

Methods inherited from Assignment

#data_type, #pretty_print

Constructor Details

#initialize(name, value, pos = nil) ⇒ SimpleAssignment

A Assignment is initialized wiht 2 to 3 parameters.

name

The name of the variable to store, it will be executed, usually this will be a Constant, unless dynamic naming is needed by the implemented language.

value

The value that will be assigned to the variable, for a = 1 + 1 ‘1+1’ would be the value to assign, so as this already suggests the value will be executed.

pos

The position within the source code of the definition - for deugging purpose.



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# File 'lib/rvm/optimisation.rb', line 20

def initialize name, value, pos = nil
  @pos = pos
  @name = name
  @value = value
end

Instance Method Details

#execute(env) ⇒ Object

The simple assignemnt only evaluates the value and sets the variable with the given name in the Environment.



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# File 'lib/rvm/optimisation.rb', line 29

def execute env
  RVM::debug "Executing SimpleAssignment at #{@pos}..." if $DEBUG
  env[@name] = @value.execute env
end

#optimize ⇒ Object 



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# File 'lib/rvm/optimisation.rb', line 34

def optimize
  @value = @value.optimize
  self
end