diff -r fd16c54261b3 -r 06bc494ca11e langtools/src/share/classes/javax/lang/model/util/ElementKindVisitor6.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/share/classes/javax/lang/model/util/ElementKindVisitor6.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,384 @@
+/*
+ * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package javax.lang.model.util;
+
+import javax.lang.model.element.*;
+import static javax.lang.model.element.ElementKind.*;
+import javax.annotation.processing.SupportedSourceVersion;
+import static javax.lang.model.SourceVersion.*;
+import javax.lang.model.SourceVersion;
+
+
+/**
+ * A visitor of program elements based on their {@linkplain
+ * ElementKind kind} with default behavior appropriate for the {@link
+ * SourceVersion#RELEASE_6 RELEASE_6} source version. For {@linkplain
+ * Element elements} XYZ that may have more than one
+ * kind, the visitXYZ methods in this class delegate
+ * to the visitXYZKind method corresponding to the
+ * first argument's kind. The visitXYZKind methods
+ * call {@link #defaultAction defaultAction}, passing their arguments
+ * to {@code defaultAction}'s corresponding parameters.
+ *
+ *
Methods in this class may be overridden subject to their
+ * general contract. Note that annotating methods in concrete
+ * subclasses with {@link java.lang.Override @Override} will help
+ * ensure that methods are overridden as intended.
+ *
+ *
WARNING: The {@code ElementVisitor} interface
+ * implemented by this class may have methods added to it or the
+ * {@code ElementKind} {@code enum} used in this case may have
+ * constants added to it in the future to accommodate new, currently
+ * unknown, language structures added to future versions of the
+ * Java™ programming language. Therefore, methods whose names
+ * begin with {@code "visit"} may be added to this class in the
+ * future; to avoid incompatibilities, classes which extend this class
+ * should not declare any instance methods with names beginning with
+ * {@code "visit"}.
+ *
+ *
When such a new visit method is added, the default
+ * implementation in this class will be to call the {@link
+ * #visitUnknown visitUnknown} method. A new abstract element kind
+ * visitor class will also be introduced to correspond to the new
+ * language level; this visitor will have different default behavior
+ * for the visit method in question. When the new visitor is
+ * introduced, all or portions of this visitor may be deprecated.
+ *
+ * @param the return type of this visitor's methods. Use {@link
+ * Void} for visitors that do not need to return results.
+ * @param the type of the additional parameter to this visitor's
+ * methods. Use {@code Void} for visitors that do not need an
+ * additional parameter.
+ *
+ * @author Joseph D. Darcy
+ * @author Scott Seligman
+ * @author Peter von der Ahé
+ * @since 1.6
+ */
+@SupportedSourceVersion(RELEASE_6)
+public class ElementKindVisitor6
+ extends SimpleElementVisitor6 {
+ /**
+ * Constructor for concrete subclasses; uses {@code null} for the
+ * default value.
+ */
+ protected ElementKindVisitor6() {
+ super(null);
+ }
+
+ /**
+ * Constructor for concrete subclasses; uses the argument for the
+ * default value.
+ *
+ * @param defaultValue the value to assign to {@link #DEFAULT_VALUE}
+ */
+ protected ElementKindVisitor6(R defaultValue) {
+ super(defaultValue);
+ }
+
+ /**
+ * {@inheritDoc}
+ *
+ * The element argument has kind {@code PACKAGE}.
+ *
+ * @param e {@inheritDoc}
+ * @param p {@inheritDoc}
+ * @return {@inheritDoc}
+ */
+ @Override
+ public R visitPackage(PackageElement e, P p) {
+ assert e.getKind() == PACKAGE: "Bad kind on PackageElement";
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits a type element, dispatching to the visit method for the
+ * specific {@linkplain ElementKind kind} of type, {@code
+ * ANNOTATION_TYPE}, {@code CLASS}, {@code ENUM}, or {@code
+ * INTERFACE}.
+ *
+ * @param e {@inheritDoc}
+ * @param p {@inheritDoc}
+ * @return the result of the kind-specific visit method
+ */
+ @Override
+ public R visitType(TypeElement e, P p) {
+ ElementKind k = e.getKind();
+ switch(k) {
+ case ANNOTATION_TYPE:
+ return visitTypeAsAnnotationType(e, p);
+
+ case CLASS:
+ return visitTypeAsClass(e, p);
+
+ case ENUM:
+ return visitTypeAsEnum(e, p);
+
+ case INTERFACE:
+ return visitTypeAsInterface(e, p);
+
+ default:
+ throw new AssertionError("Bad kind " + k + " for TypeElement" + e);
+ }
+ }
+
+ /**
+ * Visits an {@code ANNOTATION_TYPE} type element by calling
+ * {@code defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitTypeAsAnnotationType(TypeElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits a {@code CLASS} type element by calling {@code
+ * defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitTypeAsClass(TypeElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits an {@code ENUM} type element by calling {@code
+ * defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitTypeAsEnum(TypeElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits an {@code INTERFACE} type element by calling {@code
+ * defaultAction}.
+ *.
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitTypeAsInterface(TypeElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits a variable element, dispatching to the visit method for
+ * the specific {@linkplain ElementKind kind} of variable, {@code
+ * ENUM_CONSTANT}, {@code EXCEPTION_PARAMETER}, {@code FIELD},
+ * {@code LOCAL_VARIABLE}, or {@code PARAMETER}.
+ * @param e {@inheritDoc}
+ * @param p {@inheritDoc}
+ * @return the result of the kind-specific visit method
+ */
+ @Override
+ public R visitVariable(VariableElement e, P p) {
+ ElementKind k = e.getKind();
+ switch(k) {
+ case ENUM_CONSTANT:
+ return visitVariableAsEnumConstant(e, p);
+
+ case EXCEPTION_PARAMETER:
+ return visitVariableAsExceptionParameter(e, p);
+
+ case FIELD:
+ return visitVariableAsField(e, p);
+
+ case LOCAL_VARIABLE:
+ return visitVariableAsLocalVariable(e, p);
+
+ case PARAMETER:
+ return visitVariableAsParameter(e, p);
+
+ default:
+ throw new AssertionError("Bad kind " + k + " for VariableElement" + e);
+ }
+
+ }
+
+ /**
+ * Visits an {@code ENUM_CONSTANT} variable element by calling
+ * {@code defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitVariableAsEnumConstant(VariableElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits an {@code EXCEPTION_PARAMETER} variable element by calling
+ * {@code defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitVariableAsExceptionParameter(VariableElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits a {@code FIELD} variable element by calling
+ * {@code defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitVariableAsField(VariableElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits a {@code LOCAL_VARIABLE} variable element by calling
+ * {@code defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitVariableAsLocalVariable(VariableElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits a {@code PARAMETER} variable element by calling
+ * {@code defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitVariableAsParameter(VariableElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits an executable element, dispatching to the visit method
+ * for the specific {@linkplain ElementKind kind} of executable,
+ * {@code CONSTRUCTOR}, {@code INSTANCE_INIT}, {@code METHOD}, or
+ * {@code STATIC_INIT}.
+ *
+ * @param e {@inheritDoc}
+ * @param p {@inheritDoc}
+ * @return the result of the kind-specific visit method
+ */
+ @Override
+ public R visitExecutable(ExecutableElement e, P p) {
+ ElementKind k = e.getKind();
+ switch(k) {
+ case CONSTRUCTOR:
+ return visitExecutableAsConstructor(e, p);
+
+ case INSTANCE_INIT:
+ return visitExecutableAsInstanceInit(e, p);
+
+ case METHOD:
+ return visitExecutableAsMethod(e, p);
+
+ case STATIC_INIT:
+ return visitExecutableAsStaticInit(e, p);
+
+ default:
+ throw new AssertionError("Bad kind " + k + " for ExecutableElement" + e);
+ }
+ }
+
+ /**
+ * Visits a {@code CONSTRUCTOR} executable element by calling
+ * {@code defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitExecutableAsConstructor(ExecutableElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits an {@code INSTANCE_INIT} executable element by calling
+ * {@code defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitExecutableAsInstanceInit(ExecutableElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits a {@code METHOD} executable element by calling
+ * {@code defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitExecutableAsMethod(ExecutableElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+ /**
+ * Visits a {@code STATIC_INIT} executable element by calling
+ * {@code defaultAction}.
+ *
+ * @param e the element to visit
+ * @param p a visitor-specified parameter
+ * @return the result of {@code defaultAction}
+ */
+ public R visitExecutableAsStaticInit(ExecutableElement e, P p) {
+ return defaultAction(e, p);
+ }
+
+
+ /**
+ * {@inheritDoc}
+ *
+ * The element argument has kind {@code TYPE_PARAMETER}.
+ *
+ * @param e {@inheritDoc}
+ * @param p {@inheritDoc}
+ * @return {@inheritDoc}
+ */
+ @Override
+ public R visitTypeParameter(TypeParameterElement e, P p) {
+ assert e.getKind() == TYPE_PARAMETER: "Bad kind on TypeParameterElement";
+ return defaultAction(e, p);
+ }
+}