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test/tools/javac/processing/model/element/TestResourceVariable.java@13354e1abba7 (annotated)

test/tools/javac/processing/model/element/TestResourceVariable.java

Fri, 16 Jul 2010 19:35:24 -0700

author

darcy

date

Fri, 16 Jul 2010 19:35:24 -0700

changeset 609

13354e1abba7

child 697

28b021bb889f

permissions

-rw-r--r--

6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
6964740: Project Coin: More tests for ARM compiler changes
6965277: Project Coin: Correctness issues in ARM implementation
6967065: add -Xlint warning category for Automatic Resource Management (ARM)
Reviewed-by: jjb, darcy, mcimadamore, jjg, briangoetz
Contributed-by: tball@google.com

darcy@609	1	/*
darcy@609	2	* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
darcy@609	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
darcy@609	4	*
darcy@609	5	* This code is free software; you can redistribute it and/or modify it
darcy@609	6	* under the terms of the GNU General Public License version 2 only, as
darcy@609	7	* published by the Free Software Foundation.
darcy@609	8	*
darcy@609	9	* This code is distributed in the hope that it will be useful, but WITHOUT
darcy@609	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
darcy@609	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
darcy@609	12	* version 2 for more details (a copy is included in the LICENSE file that
darcy@609	13	* accompanied this code).
darcy@609	14	*
darcy@609	15	* You should have received a copy of the GNU General Public License version
darcy@609	16	* 2 along with this work; if not, write to the Free Software Foundation,
darcy@609	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
darcy@609	18	*
darcy@609	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
darcy@609	20	* or visit www.oracle.com if you need additional information or have any
darcy@609	21	* questions.
darcy@609	22	*/
darcy@609	23
darcy@609	24	/*
darcy@609	25	* @test
darcy@609	26	* @bug 6911256 6964740
darcy@609	27	* @summary Test that the resource variable kind is appropriately set
darcy@609	28	* @author Joseph D. Darcy
darcy@609	29	* @build TestResourceVariable
darcy@609	30	* @compile/fail -processor TestResourceVariable -proc:only TestResourceVariable.java
darcy@609	31	*/
darcy@609	32
darcy@609	33	// Bug should be filed for this misbehavior
darcy@609	34
darcy@609	35	import java.io.*;
darcy@609	36	import javax.annotation.processing.*;
darcy@609	37	import javax.lang.model.*;
darcy@609	38	import javax.lang.model.element.*;
darcy@609	39	import javax.lang.model.type.*;
darcy@609	40	import javax.lang.model.util.*;
darcy@609	41	import java.util.*;
darcy@609	42	import com.sun.source.tree.*;
darcy@609	43	import com.sun.source.util.*;
darcy@609	44	import static javax.tools.Diagnostic.Kind.*;
darcy@609	45
darcy@609	46	/**
darcy@609	47	* Using the tree API, retrieve element representations of the
darcy@609	48	* resource of an ARM block and verify their kind tags are set
darcy@609	49	* appropriately.
darcy@609	50	*/
darcy@609	51	@SupportedAnnotationTypes("*")
darcy@609	52	public class TestResourceVariable extends AbstractProcessor implements AutoCloseable {
darcy@609	53	int resourceVariableCount = 0;
darcy@609	54
darcy@609	55	public boolean process(Set<? extends TypeElement> annotations,
darcy@609	56	RoundEnvironment roundEnv) {
darcy@609	57	if (!roundEnv.processingOver()) {
darcy@609	58	Trees trees = Trees.instance(processingEnv);
darcy@609	59
darcy@609	60	for(Element rootElement : roundEnv.getRootElements()) {
darcy@609	61	TreePath treePath = trees.getPath(rootElement);
darcy@609	62
darcy@609	63	(new ResourceVariableScanner(trees)).
darcy@609	64	scan(trees.getTree(rootElement),
darcy@609	65	treePath.getCompilationUnit());
darcy@609	66	}
darcy@609	67	if (resourceVariableCount != 3)
darcy@609	68	throw new RuntimeException("Bad resource variable count " +
darcy@609	69	resourceVariableCount);
darcy@609	70	}
darcy@609	71	return true;
darcy@609	72	}
darcy@609	73
darcy@609	74	@Override
darcy@609	75	public void close() {}
darcy@609	76
darcy@609	77	private void test1() {
darcy@609	78	try(TestResourceVariable trv = this) {}
darcy@609	79	}
darcy@609	80
darcy@609	81	private void test2() {
darcy@609	82	try(TestResourceVariable trv1 = this; TestResourceVariable trv2 = trv1) {}
darcy@609	83	}
darcy@609	84
darcy@609	85	class ResourceVariableScanner extends TreeScanner<Void, CompilationUnitTree> {
darcy@609	86	private Trees trees;
darcy@609	87
darcy@609	88	public ResourceVariableScanner(Trees trees) {
darcy@609	89	super();
darcy@609	90	this.trees = trees;
darcy@609	91	}
darcy@609	92	@Override
darcy@609	93	public Void visitVariable(VariableTree node, CompilationUnitTree cu) {
darcy@609	94	Element element = trees.getElement(trees.getPath(cu, node));
darcy@609	95	if (element == null) {
darcy@609	96	System.out.println("Null variable element: " + node);
darcy@609	97	} else {
darcy@609	98	System.out.println("Name: " + element.getSimpleName() +
darcy@609	99	"\tKind: " + element.getKind());
darcy@609	100	}
darcy@609	101	if (element != null &&
darcy@609	102	element.getKind() == ElementKind.RESOURCE_VARIABLE) {
darcy@609	103	resourceVariableCount++;
darcy@609	104	}
darcy@609	105	return super.visitVariable(node, cu);
darcy@609	106	}
darcy@609	107	}
darcy@609	108
darcy@609	109	@Override
darcy@609	110	public SourceVersion getSupportedSourceVersion() {
darcy@609	111	return SourceVersion.latest();
darcy@609	112	}
darcy@609	113	}