Package org.codehaus.groovy.transform.stc

## Class EnumTypeCheckingExtension

- java.lang.Object
- - org.codehaus.groovy.transform.stc.TypeCheckingExtension
  - - org.codehaus.groovy.transform.stc.EnumTypeCheckingExtension

-     public class EnumTypeCheckingExtension
      extends TypeCheckingExtension

  A type checking extension that will take care of handling errors which are specific to enums. In particular, it will handle the enum constants within switch-case statement.
  Since:
    3.0.0

- - ### Field Summary

    - ### Fields inherited from class org.codehaus.groovy.transform.stc.TypeCheckingExtension

      `typeCheckingVisitor`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `EnumTypeCheckingExtension​(StaticTypeCheckingVisitor staticTypeCheckingVisitor)` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `boolean` | `handleUnresolvedVariableExpression​(VariableExpression vexp)` | This method is called by the type checker when a variable expression cannot be resolved.

    - ### Methods inherited from class org.codehaus.groovy.transform.stc.TypeCheckingExtension

      `addStaticTypeError, afterMethodCall, afterVisitClass, afterVisitMethod, beforeMethodCall, beforeVisitClass, beforeVisitMethod, buildListType, buildMapType, classNodeFor, classNodeFor, existsProperty, existsProperty, extractStaticReceiver, finish, getArgumentTypes, getTargetMethod, getType, handleAmbiguousMethods, handleIncompatibleAssignment, handleIncompatibleReturnType, handleMissingMethod, handleUnresolvedAttribute, handleUnresolvedProperty, isStaticMethodCallOnClass, lookupClassNodeFor, onMethodSelection, parameterizedType, setup, storeType`

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

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

- - ### Constructor Detail

    - #### EnumTypeCheckingExtension

          public EnumTypeCheckingExtension​(StaticTypeCheckingVisitor staticTypeCheckingVisitor)

  - ### Method Detail

    - #### handleUnresolvedVariableExpression

          public boolean handleUnresolvedVariableExpression​(VariableExpression vexp)

      Description copied from class: `TypeCheckingExtension`
      This method is called by the type checker when a variable expression cannot be resolved. It gives the extension a chance to resolve it for the type checker.
      Overrides:
        `handleUnresolvedVariableExpression` in class `TypeCheckingExtension`
      Parameters:
        `vexp` - the unresolved variable extension
      Returns:
        `boolean` false if the extension doesn't handle it, true if the extension handles this variable.