Class: Axiom::Optimizer::Relation::Operation::Unary::EmptyOperand
- Inherits:
-
Axiom::Optimizer::Relation::Operation::Unary
- Object
- Axiom::Optimizer
- Axiom::Optimizer::Relation::Operation::Unary
- Axiom::Optimizer::Relation::Operation::Unary::EmptyOperand
- Defined in:
- lib/axiom/optimizer/relation/operation/unary.rb
Overview
Optimize when the operand is Empty
Constant Summary
Constants inherited from Axiom::Optimizer
Instance Attribute Summary
Attributes inherited from Axiom::Optimizer::Relation::Operation::Unary
Attributes included from Function::Unary
Attributes inherited from Axiom::Optimizer
Instance Method Summary collapse
-
#optimizable? ⇒ Boolean
private
Test if the operand is empty.
-
#optimize ⇒ Relation::Empty
private
A Unary operation on an empty operand is empty.
Methods inherited from Axiom::Optimizer::Relation::Operation::Unary
Methods included from Function::Unary
Methods inherited from Axiom::Optimizer
Constructor Details
This class inherits a constructor from Axiom::Optimizer::Relation::Operation::Unary
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 operand is empty
83 84 85 |
# File 'lib/axiom/optimizer/relation/operation/unary.rb', line 83 def optimizable? operand.kind_of?(Axiom::Relation::Empty) end |
#optimize ⇒ Relation::Empty
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 Unary operation on an empty operand is empty
92 93 94 |
# File 'lib/axiom/optimizer/relation/operation/unary.rb', line 92 def optimize operand end |