visitor library

Classes

GeneralizingElementVisitor<R>

An element visitor that will recursively visit all of the elements in an element model (like instances of the class RecursiveElementVisitor). In addition, when an element of a specific type is visited not only will the visit method for that specific type of element be invoked, but additional methods for the supertypes of that element will also be invoked. For example, using an instance of this class to visit a MethodElement will cause the method visitMethodElement to be invoked but will also cause the methods visitExecutableElement and visitElement to be subsequently invoked. This allows visitors to be written that visit all executable elements without needing to override the visit method for each of the specific subclasses of ExecutableElement. [...]

RecursiveElementVisitor<R>

A visitor that will recursively visit all of the element in an element model. For example, using an instance of this class to visit a CompilationUnitElement will also cause all of the types in the compilation unit to be visited. [...]

SimpleElementVisitor<R>

A visitor that will do nothing when visiting an element. It is intended to be a superclass for classes that use the visitor pattern primarily as a dispatch mechanism (and hence don't need to recursively visit a whole structure) and that only need to visit a small number of element types. [...]

ThrowingElementVisitor<R>

An AST visitor that will throw an exception if any of the visit methods that are invoked have not been overridden. It is intended to be a superclass for classes that implement the visitor pattern and need to (a) override all of the visit methods or (b) need to override a subset of the visit method and want to catch when any other visit methods have been invoked. [...]