Package org.codehaus.groovy.classgen.asm

# Class UnaryExpressionHelper

java.lang.Object
org.codehaus.groovy.classgen.asm.UnaryExpressionHelper

Direct Known Subclasses:
  `StaticTypesUnaryExpressionHelper`

    public class UnaryExpressionHelper
    extends java.lang.Object

A helper class used to generate bytecode for unary expressions. AST transformations willing to use a custom unary expression helper may set the `WriterControllerFactory` node metadata on a class node to provide a custom `WriterController` which would in turn use a custom expression helper.

See Also:
  `BinaryExpressionHelper`

- ## Field Summary

  Fields
  Modifier and Type | Field | Description
  --- | --- | ---
  `protected WriterController` | `controller` |

- ## Constructor Summary

  Constructors
  Constructor | Description
  --- | ---
  `UnaryExpressionHelper​(WriterController controller)` |

- ## Method Summary

  Modifier and Type | Method | Description
  --- | --- | ---
  `void` | `writeBitwiseNegate​(BitwiseNegationExpression expression)` |
  `void` | `writeNotExpression​(NotExpression expression)` |
  `void` | `writeUnaryMinus​(UnaryMinusExpression expression)` |
  `void` | `writeUnaryPlus​(UnaryPlusExpression expression)` |

  ### Methods inherited from class java.lang.Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Field Details

  - ### controller

    protected final WriterController controller

- ## Constructor Details

  - ### UnaryExpressionHelper

    public UnaryExpressionHelper​(WriterController controller)

- ## Method Details

  - ### writeUnaryPlus

    public void writeUnaryPlus​(UnaryPlusExpression expression)

  - ### writeUnaryMinus

    public void writeUnaryMinus​(UnaryMinusExpression expression)

  - ### writeBitwiseNegate

    public void writeBitwiseNegate​(BitwiseNegationExpression expression)

  - ### writeNotExpression

    public void writeNotExpression​(NotExpression expression)