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test/tools/javac/api/taskListeners/EventsBalancedTest.java@7909abb85562 (annotated)

test/tools/javac/api/taskListeners/EventsBalancedTest.java

Wed, 14 Nov 2018 10:18:25 -0800

author

diazhou

date

Wed, 14 Nov 2018 10:18:25 -0800

changeset 3762

7909abb85562

parent 0

959103a6100f

permissions

-rw-r--r--

Added tag jdk8u201-b04 for changeset a7f48b9dfb82

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/*
aoqi@0	25	* @test
aoqi@0	26	* @bug 8040822
aoqi@0	27	* @summary Check that all TaskEvents are balanced.
aoqi@0	28	*/
aoqi@0	29
aoqi@0	30	import java.io.*;
aoqi@0	31	import java.net.URI;
aoqi@0	32	import java.util.*;
aoqi@0	33	import java.util.Map.Entry;
aoqi@0	34
aoqi@0	35	import javax.tools.*;
aoqi@0	36
aoqi@0	37	import com.sun.source.util.*;
aoqi@0	38	import com.sun.source.util.TaskEvent.Kind;
aoqi@0	39	import com.sun.tools.javac.api.JavacTool;
aoqi@0	40	import com.sun.tools.javac.comp.CompileStates.CompileState;
aoqi@0	41
aoqi@0	42	public class EventsBalancedTest {
aoqi@0	43	JavacTool tool = (JavacTool) ToolProvider.getSystemJavaCompiler();
aoqi@0	44	StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
aoqi@0	45
aoqi@0	46	public static void main(String... args) throws IOException {
aoqi@0	47	new EventsBalancedTest().test();
aoqi@0	48	}
aoqi@0	49
aoqi@0	50	void test() throws IOException {
aoqi@0	51	TestSource a = new TestSource("B", "class B extends A { }");
aoqi@0	52	TestSource b = new TestSource("A", "abstract class A { }");
aoqi@0	53
aoqi@0	54	test(null, Arrays.asList(a, b));
aoqi@0	55	test(null, Arrays.asList(b, a));
aoqi@0	56	test(Arrays.asList("-XD-relax"), Arrays.asList(a, b));
aoqi@0	57	test(Arrays.asList("-XD-relax"), Arrays.asList(b, a));
aoqi@0	58
aoqi@0	59	for (CompileState stop : CompileState.values()) {
aoqi@0	60	test(Arrays.asList("-XDshouldStopPolicyIfNoError=" + stop,
aoqi@0	61	"-XDshouldStopPolicyIfError=" + stop),
aoqi@0	62	Arrays.asList(a, b));
aoqi@0	63	test(Arrays.asList("-XDshouldStopPolicyIfNoError=" + stop,
aoqi@0	64	"-XDshouldStopPolicyIfError=" + stop),
aoqi@0	65	Arrays.asList(b, a));
aoqi@0	66	}
aoqi@0	67	}
aoqi@0	68
aoqi@0	69	void test(Iterable<String> options, Iterable<JavaFileObject> files) throws IOException {
aoqi@0	70	StringWriter sw = new StringWriter();
aoqi@0	71	PrintWriter pw = new PrintWriter(sw);
aoqi@0	72	TestListener listener = new TestListener();
aoqi@0	73	JavacTask task = tool.getTask(pw, fm, null, options, null, files);
aoqi@0	74
aoqi@0	75	task.setTaskListener(listener);
aoqi@0	76
aoqi@0	77	task.call();
aoqi@0	78
aoqi@0	79	for (Entry<Kind, Integer> e : listener.kind2Count.entrySet()) {
aoqi@0	80	if (e.getValue() != null && e.getValue() != 0) {
aoqi@0	81	throw new IllegalStateException("Not balanced event: " + e.getKey());
aoqi@0	82	}
aoqi@0	83	}
aoqi@0	84	}
aoqi@0	85
aoqi@0	86	static class TestListener implements TaskListener {
aoqi@0	87	final Map<Kind, Integer> kind2Count = new HashMap<>();
aoqi@0	88
aoqi@0	89	int get(Kind k) {
aoqi@0	90	Integer count = kind2Count.get(k);
aoqi@0	91
aoqi@0	92	if (count == null)
aoqi@0	93	kind2Count.put(k, count = 0);
aoqi@0	94
aoqi@0	95	return count;
aoqi@0	96	}
aoqi@0	97
aoqi@0	98	@Override
aoqi@0	99	public void started(TaskEvent e) {
aoqi@0	100	kind2Count.put(e.getKind(), get(e.getKind()) + 1);
aoqi@0	101	}
aoqi@0	102
aoqi@0	103	@Override
aoqi@0	104	public void finished(TaskEvent e) {
aoqi@0	105	int count = get(e.getKind());
aoqi@0	106
aoqi@0	107	if (count <= 0)
aoqi@0	108	throw new IllegalStateException("count<=0 for: " + e.getKind());
aoqi@0	109
aoqi@0	110	kind2Count.put(e.getKind(), count - 1);
aoqi@0	111	}
aoqi@0	112
aoqi@0	113	}
aoqi@0	114	static class TestSource extends SimpleJavaFileObject {
aoqi@0	115	final String content;
aoqi@0	116	public TestSource(String fileName, String content) {
aoqi@0	117	super(URI.create("myfo:/" + fileName + ".java"), JavaFileObject.Kind.SOURCE);
aoqi@0	118	this.content = content;
aoqi@0	119	}
aoqi@0	120
aoqi@0	121	@Override
aoqi@0	122	public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0	123	return content;
aoqi@0	124	}
aoqi@0	125	}
aoqi@0	126
aoqi@0	127	}