6855544: add missing files

Co-authored-by: Mahmood Ali <mali@csail.mit.edu>
Co-authored-by: Matt Papi <mpapi@csail.mit.edu>
Reviewed-by: jjg, mcimadamore, darcy

langtools/src/share/classes/com/sun/source/tree/AnnotatedTypeTree.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2008-2009 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 com.sun.source.tree;
+
+import java.util.List;
+
+/**
+ * A tree node for an annotated type
+ *
+ * For example:
+ * <pre>
+ *    {@code @}<em>annotationType String</em>
+ *    {@code @}<em>annotationType</em> ( <em>arguments</em> ) <em>Date</em>
+ * </pre>
+ *
+ * @see "JSR 308: Annotations on Java Types"
+ *
+ * @author Mahmood Ali
+ * @since 1.7
+ */
+public interface AnnotatedTypeTree extends ExpressionTree {
+    List<? extends AnnotationTree> getAnnotations();
+    ExpressionTree getUnderlyingType();
+}

langtools/src/share/classes/com/sun/source/util/AbstractTypeProcessor.java

@@ -0,0 +1,245 @@
+/*
+ * Copyright 2009 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 com.sun.source.util;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import javax.annotation.processing.*;
+import javax.lang.model.element.Name;
+import javax.lang.model.element.TypeElement;
+import javax.lang.model.util.ElementFilter;
+
+import com.sun.tools.javac.processing.JavacProcessingEnvironment;
+import com.sun.tools.javac.util.Context;
+import com.sun.tools.javac.util.Log;
+
+import com.sun.source.tree.ClassTree;
+
+/**
+ * This class is an abstract annotation processor designed to be a
+ * convenient superclass for concrete "type processors", processors that
+ * require the type information in the processed source.
+ *
+ * <p>Type processing occurs in one round after the tool (e.g. java compiler)
+ * analyzes the source (all sources taken as input to the tool and sources
+ * generated by other annotation processors).
+ *
+ * <p>The tool infrastructure will interact with classes extending this abstract
+ * class as follows:
+ *
+ * <ol>
+ * [1-3: Identical to {@link Processor} life cycle]
+ *
+ * <li>If an existing {@code Processor} object is not being used, to
+ * create an instance of a processor the tool calls the no-arg
+ * constructor of the processor class.
+ *
+ * <li>Next, the tool calls the {@link #init init} method with
+ * an appropriate {@code ProcessingEnvironment}.
+ *
+ * <li>Afterwards, the tool calls {@link #getSupportedAnnotationTypes
+ * getSupportedAnnotationTypes}, {@link #getSupportedOptions
+ * getSupportedOptions}, and {@link #getSupportedSourceVersion
+ * getSupportedSourceVersion}.  These methods are only called once per
+ * run, not on each round.
+ *
+ * [4-5Unique to {@code AbstractTypeProcessor} subclasses]
+ *
+ * <li>For each class containing a supported annotation, the tool calls
+ * {@link #typeProcess(TypeElement, TreePath) typeProcess} method on the
+ * {@code Processor}.  The class is guaranteed to be type-checked Java code
+ * and all the tree type and symbol information is resolved.
+ *
+ * <li>Finally, the tools calls the
+ * {@link #typeProcessingOver() typeProcessingOver} method
+ * on the {@code Processor}.
+ *
+ * </ol>
+ *
+ * <p>The tool is permitted to ask type processors to process a class once
+ * it is analyzed before the rest of classes are analyzed.  The tool is also
+ * permitted to stop type processing immediately if any errors are raised,
+ * without invoking {@code typeProcessingOver}
+ *
+ * <p>A subclass may override any of the methods in this class, as long as the
+ * general {@link javax.annotation.processing.Processor Processor}
+ * contract is obeyed, with one notable exception.
+ * {@link #process(Set, RoundEnvironment)} may not be overridden, as it
+ * is called during the regular annotation phase before classes are analyzed.
+ *
+ * @author Mahmood Ali
+ * @since 1.7
+ */
+public abstract class AbstractTypeProcessor extends AbstractProcessor {
+    private final Set<Name> elements = new HashSet<Name>();
+    private boolean hasInvokedTypeProcessingOver = false;
+    private JavacProcessingEnvironment env;
+    private final AttributionTaskListener listener = new AttributionTaskListener();
+
+    /**
+     * Constructor for subclasses to call.
+     */
+    protected AbstractTypeProcessor() { }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void init(ProcessingEnvironment env) {
+        super.init(env);
+        this.env = (JavacProcessingEnvironment)env;
+        prepareContext(this.env.getContext());
+    }
+
+    /**
+     * The use of this method is obsolete in type processors.  The method is
+     * called during regular annotation processing phase only.
+     */
+    @Override
+    public final boolean process(Set<? extends TypeElement> annotations,
+            RoundEnvironment roundEnv) {
+        for (TypeElement elem : ElementFilter.typesIn(roundEnv.getRootElements())) {
+            elements.add(elem.getQualifiedName());
+        }
+        return false;
+    }
+
+    /**
+     * Processes a fully analyzed class that contains a supported annotation
+     * (look {@link #getSupportedAnnotationTypes()}).
+     *
+     * <p>The passed class is always a valid type-checked Java code.
+     *
+     * @param element       element of the analyzed class
+     * @param tree  the tree path to the element, with the leaf being a
+     *              {@link ClassTree}
+     */
+    public abstract void typeProcess(TypeElement element, TreePath tree);
+
+    /**
+     * A method to be called once all the classes are processed and no error
+     * is reported.
+     *
+     * <p>Subclasses may override this method to do any aggregate analysis
+     * (e.g. generate report, persistence) or resource deallocation.
+     *
+     * <p>If an error (a Java error or a processor error) is reported, this
+     * method is not guaranteed to be invoked.
+     */
+    public void typeProcessingOver() { }
+
+    /**
+     * adds a listener for attribution.
+     */
+    private void prepareContext(Context context) {
+        TaskListener otherListener = context.get(TaskListener.class);
+        if (otherListener == null) {
+            context.put(TaskListener.class, listener);
+        } else {
+            // handle cases of multiple listeners
+            context.put(TaskListener.class, (TaskListener)null);
+            TaskListeners listeners = new TaskListeners();
+            listeners.add(otherListener);
+            listeners.add(listener);
+            context.put(TaskListener.class, listeners);
+        }
+    }
+
+    /**
+     * A task listener that invokes the processor whenever a class is fully
+     * analyzed.
+     */
+    private final class AttributionTaskListener implements TaskListener {
+
+        @Override
+        public void finished(TaskEvent e) {
+            Log log = Log.instance(env.getContext());
+
+            if (!hasInvokedTypeProcessingOver && elements.isEmpty() && log.nerrors == 0) {
+                typeProcessingOver();
+                hasInvokedTypeProcessingOver = true;
+            }
+
+            if (e.getKind() != TaskEvent.Kind.ANALYZE)
+                return;
+
+            if (e.getTypeElement() == null)
+                throw new AssertionError("event task without a type element");
+            if (e.getCompilationUnit() == null)
+                throw new AssertionError("even task without compilation unit");
+
+            if (!elements.remove(e.getTypeElement().getQualifiedName()))
+                return;
+
+            if (log.nerrors != 0)
+                return;
+
+            TypeElement elem = e.getTypeElement();
+            TreePath p = Trees.instance(env).getPath(elem);
+
+            typeProcess(elem, p);
+
+            if (!hasInvokedTypeProcessingOver && elements.isEmpty() && log.nerrors == 0) {
+                typeProcessingOver();
+                hasInvokedTypeProcessingOver = true;
+            }
+        }
+
+        @Override
+        public void started(TaskEvent e) { }
+
+    }
+
+    /**
+     * A task listener multiplexer.
+     */
+    private static class TaskListeners implements TaskListener {
+        private final List<TaskListener> listeners = new ArrayList<TaskListener>();
+
+        public void add(TaskListener listener) {
+            listeners.add(listener);
+        }
+
+        public void remove(TaskListener listener) {
+            listeners.remove(listener);
+        }
+
+        @Override
+        public void finished(TaskEvent e) {
+            for (TaskListener listener : listeners)
+                listener.finished(e);
+        }
+
+        @Override
+        public void started(TaskEvent e) {
+            for (TaskListener listener : listeners)
+                listener.started(e);
+        }
+    }
+}