Package org.codehaus.groovy.classgen

## Class BytecodeExpression

- java.lang.Object
- - org.codehaus.groovy.ast.ASTNode
  - - org.codehaus.groovy.ast.AnnotatedNode
    - - org.codehaus.groovy.ast.expr.Expression
      - - org.codehaus.groovy.classgen.BytecodeExpression

- All Implemented Interfaces:
    `GroovydocHolder<AnnotatedNode>`, `NodeMetaDataHandler`
  Direct Known Subclasses:
    `ExpressionAsVariableSlot`, `VariableSlotLoader`

      public abstract class BytecodeExpression
      extends Expression

  Represents some custom bytecode generation by the compiler.

- - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `static BytecodeExpression` | `NOP` |

    - ### Fields inherited from class org.codehaus.groovy.ast.expr.Expression

      `EMPTY_ARRAY`

    - ### Fields inherited from interface groovy.lang.groovydoc.GroovydocHolder

      `DOC_COMMENT`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `BytecodeExpression()` |
    `BytecodeExpression​(ClassNode type)` |

  - ### Method Summary

    All Methods Instance Methods Abstract Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `Expression` | `transformExpression​(ExpressionTransformer transformer)` | Return a copy of the expression calling the transformer on any nested expressions
    `void` | `visit​(GroovyCodeVisitor visitor)` |
    `abstract void` | `visit​(org.objectweb.asm.MethodVisitor visitor)` |

    - ### Methods inherited from class org.codehaus.groovy.ast.expr.Expression

      `getType, setType, transformExpressions, transformExpressions`

    - ### Methods inherited from class org.codehaus.groovy.ast.AnnotatedNode

      `addAnnotation, addAnnotations, getAnnotations, getAnnotations, getDeclaringClass, getGroovydoc, getInstance, hasNoRealSourcePosition, isSynthetic, setDeclaringClass, setHasNoRealSourcePosition, setSynthetic`

    - ### Methods inherited from class org.codehaus.groovy.ast.ASTNode

      `copyNodeMetaData, getColumnNumber, getLastColumnNumber, getLastLineNumber, getLineNumber, getMetaDataMap, getText, hashCode, setColumnNumber, setLastColumnNumber, setLastLineNumber, setLineNumber, setMetaDataMap, setSourcePosition`

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

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

    - ### Methods inherited from interface org.codehaus.groovy.ast.NodeMetaDataHandler

      `copyNodeMetaData, getNodeMetaData, getNodeMetaData, getNodeMetaData, putNodeMetaData, removeNodeMetaData, setNodeMetaData`

- - ### Field Detail

    - #### NOP

          public static final BytecodeExpression NOP

  - ### Constructor Detail

    - #### BytecodeExpression

          public BytecodeExpression()

    - #### BytecodeExpression

          public BytecodeExpression​(ClassNode type)

  - ### Method Detail

    - #### visit

          public abstract void visit​(org.objectweb.asm.MethodVisitor visitor)

    - #### visit

          public void visit​(GroovyCodeVisitor visitor)

      Overrides:
        `visit` in class `ASTNode`

    - #### transformExpression

          public Expression transformExpression​(ExpressionTransformer transformer)

      Description copied from class: `Expression`
      Return a copy of the expression calling the transformer on any nested expressions
      Specified by:
        `transformExpression` in class `Expression`