Class: Veritas::Optimizer::Function::Connective::Binary::RedundantLeftOperand

Inherits:

Veritas::Optimizer::Function::Connective::Binary

• Object
• Veritas::Optimizer
• Veritas::Optimizer::Function::Connective::Binary
• Veritas::Optimizer::Function::Connective::Binary::RedundantLeftOperand

Defined in:

lib/veritas/optimizer/function/connective/binary.rb

Overview

Optimize when the left operand is redundant

Constant Summary

Constants inherited from Veritas::Optimizer

Noop, VERSION

Instance Attribute Summary

Attributes included from Binary

#left, #right

Attributes inherited from Veritas::Optimizer

#operation

Instance Method Summary

• #optimizable? ⇒ Boolean private

  Test if the left operand is redundant.

• #optimize ⇒ Function private

  A Binary connective with a redundant left operand is equivalent to the left.

Methods included from Binary

#initialize

Methods inherited from Veritas::Optimizer

chain, #initialize

Instance Method Details

#optimizable? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Test if the left operand is redundant

# File 'lib/veritas/optimizer/function/connective/binary.rb', line 205

def optimizable?
  left = self.left
  operation.kind_of?(left.class) && right.eql?(left.right)
end

#optimize ⇒ Function

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

A Binary connective with a redundant left operand is equivalent to the left

# File 'lib/veritas/optimizer/function/connective/binary.rb', line 215

def optimize
  left
end