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 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

    All Methods Instance Methods Concrete Methods
    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 Detail

    - #### controller

          protected final WriterController controller

  - ### Constructor Detail

    - #### UnaryExpressionHelper

          public UnaryExpressionHelper​(WriterController controller)

  - ### Method Detail

    - #### writeUnaryPlus

          public void writeUnaryPlus​(UnaryPlusExpression expression)

    - #### writeUnaryMinus

          public void writeUnaryMinus​(UnaryMinusExpression expression)

    - #### writeBitwiseNegate

          public void writeBitwiseNegate​(BitwiseNegationExpression expression)

    - #### writeNotExpression

          public void writeNotExpression​(NotExpression expression)