• file
• revisions
• annotate
• diff
• comparison
• raw

test/tools/javac/T8019486/WrongLNTForLambdaTest.java@2eb010b6cb22 (annotated)

test/tools/javac/T8019486/WrongLNTForLambdaTest.java

Thu, 31 Aug 2017 15:17:03 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:17:03 +0800

changeset 2525

2eb010b6cb22

parent 2186

6e0f31d61e56

parent 0

959103a6100f

child 2702

9ca8d8713094

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2013, 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. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	/*
aoqi@0	27	* @test
aoqi@0	28	* @bug 8019486 8026861 8027142
aoqi@0	29	* @summary javac, generates erroneous LVT for a test case with lambda code
aoqi@0	30	* @library /tools/javac/lib
aoqi@0	31	* @build ToolBox
aoqi@0	32	* @run main WrongLNTForLambdaTest
aoqi@0	33	*/
aoqi@0	34
aoqi@0	35	import java.io.File;
aoqi@0	36	import java.nio.file.Paths;
aoqi@0	37
aoqi@0	38	import com.sun.tools.classfile.ClassFile;
aoqi@0	39	import com.sun.tools.classfile.Code_attribute;
aoqi@0	40	import com.sun.tools.classfile.LineNumberTable_attribute;
aoqi@0	41	import com.sun.tools.classfile.Method;
aoqi@0	42	import com.sun.tools.javac.util.Assert;
aoqi@0	43
aoqi@0	44	public class WrongLNTForLambdaTest {
aoqi@0	45
aoqi@0	46	static final String testSource =
aoqi@0	47	/* 01 */ "import java.util.List;\n" +
aoqi@0	48	/* 02 */ "import java.util.Arrays;\n" +
aoqi@0	49	/* 03 */ "import java.util.stream.Collectors;\n" +
aoqi@0	50	/* 04 */ "\n" +
aoqi@0	51	/* 05 */ "public class Foo {\n" +
aoqi@0	52	/* 06 */ " void bar(int value) {\n" +
aoqi@0	53	/* 07 */ " final List<Integer> numbers = Arrays.asList(1, 2, 3);\n" +
aoqi@0	54	/* 08 */ " final List<Integer> numbersPlusOne = \n" +
aoqi@0	55	/* 09 */ " numbers.stream().map(number -> number / 1).collect(Collectors.toList());\n" +
aoqi@0	56	/* 10 */ " }\n" +
aoqi@0	57	/* 11 */ " void variablesInLambdas(int value) {\n" +
aoqi@0	58	/* 12 */ " Runnable r1 = () -> {\n" +
aoqi@0	59	/* 13 */ " int i = value;\n" +
aoqi@0	60	/* 14 */ " class FooBar<T extends CharSequence> {\n" +
aoqi@0	61	/* 15 */ " public void run() {\n" +
aoqi@0	62	/* 16 */ " T t = null;\n" +
aoqi@0	63	/* 17 */ " }\n" +
aoqi@0	64	/* 18 */ " }\n" +
aoqi@0	65	/* 19 */ " };\n" +
aoqi@0	66	/* 20 */ " Runnable r2 = () -> System.err.println(1);\n" +
aoqi@0	67	/* 21 */ " Runnable r3 = (Runnable & java.io.Serializable) this::foo;\n" +
aoqi@0	68	/* 22 */ " Runnable r4 = super :: notify;\n" +
aoqi@0	69	/* 23 */ " }\n" +
aoqi@0	70	/* 24 */ " private void foo() {}\n" +
aoqi@0	71	/* 25 */ " void assignLambda() {\n" +
aoqi@0	72	/* 26 */ " Runnable r = () -> { };\n" +
aoqi@0	73	/* 27 */ " }\n" +
aoqi@0	74	/* 28 */ " void callLambda(int i, Runnable r) {\n" +
aoqi@0	75	/* 29 */ " callLambda(0,\n" +
aoqi@0	76	/* 30 */ " () -> { });\n" +
aoqi@0	77	/* 31 */ " }\n" +
aoqi@0	78	/* 32 */ "}";
aoqi@0	79
aoqi@0	80	static final int[][] simpleLambdaExpectedLNT = {
aoqi@0	81	// {line-number, start-pc},
aoqi@0	82	{9, 0}, //number -> number / 1
aoqi@0	83	};
aoqi@0	84
aoqi@0	85	static final int[][] lambdaWithVarsExpectedLNT = {
aoqi@0	86	// {line-number, start-pc},
aoqi@0	87	{13, 0}, //number -> number / 1
aoqi@0	88	{19, 2}, //number -> number / 1
aoqi@0	89	};
aoqi@0	90
aoqi@0	91	static final int[][] insideLambdaWithVarsExpectedLNT = {
aoqi@0	92	// {line-number, start-pc},
aoqi@0	93	{16, 0}, //number -> number / 1
aoqi@0	94	{17, 2}, //number -> number / 1
aoqi@0	95	};
aoqi@0	96
aoqi@0	97	static final int[][] lambdaVoid2VoidExpectedLNT = {
aoqi@0	98	// {line-number, start-pc},
aoqi@0	99	{20, 0}, //number -> number / 1
aoqi@0	100	};
aoqi@0	101
aoqi@0	102	static final int[][] deserializeExpectedLNT = {
aoqi@0	103	// {line-number, start-pc},
aoqi@0	104	{05, 0}, //number -> number / 1
aoqi@0	105	};
aoqi@0	106
aoqi@0	107	static final int[][] lambdaBridgeExpectedLNT = {
aoqi@0	108	// {line-number, start-pc},
aoqi@0	109	{22, 0}, //number -> number / 1
aoqi@0	110	};
aoqi@0	111
aoqi@0	112	static final int[][] assignmentExpectedLNT = {
aoqi@0	113	// {line-number, start-pc},
aoqi@0	114	{26, 0}, //number -> number / 1
aoqi@0	115	{27, 6}, //number -> number / 1
aoqi@0	116	};
aoqi@0	117
aoqi@0	118	static final int[][] callExpectedLNT = {
aoqi@0	119	// {line-number, start-pc},
aoqi@0	120	{29, 0}, //number -> number / 1
aoqi@0	121	{31, 10}, //number -> number / 1
aoqi@0	122	};
aoqi@0	123
aoqi@0	124	public static void main(String[] args) throws Exception {
aoqi@0	125	new WrongLNTForLambdaTest().run();
aoqi@0	126	}
aoqi@0	127
aoqi@0	128	void run() throws Exception {
aoqi@0	129	compileTestClass();
aoqi@0	130	checkClassFile(new File(Paths.get(System.getProperty("user.dir"),
aoqi@0	131	"Foo.class").toUri()), "lambda$bar$0", simpleLambdaExpectedLNT);
aoqi@0	132	checkClassFile(new File(Paths.get(System.getProperty("user.dir"),
aoqi@0	133	"Foo.class").toUri()), "lambda$variablesInLambdas$1", lambdaWithVarsExpectedLNT);
aoqi@0	134	checkClassFile(new File(Paths.get(System.getProperty("user.dir"),
aoqi@0	135	"Foo$1FooBar.class").toUri()), "run", insideLambdaWithVarsExpectedLNT);
aoqi@0	136	checkClassFile(new File(Paths.get(System.getProperty("user.dir"),
aoqi@0	137	"Foo.class").toUri()), "lambda$variablesInLambdas$2", lambdaVoid2VoidExpectedLNT);
aoqi@0	138	checkClassFile(new File(Paths.get(System.getProperty("user.dir"),
aoqi@0	139	"Foo.class").toUri()), "$deserializeLambda$", deserializeExpectedLNT);
aoqi@0	140	checkClassFile(new File(Paths.get(System.getProperty("user.dir"),
aoqi@0	141	"Foo.class").toUri()), "lambda$MR$variablesInLambdas$notify$8bc4f5bd$1", lambdaBridgeExpectedLNT);
aoqi@0	142	checkClassFile(new File(Paths.get(System.getProperty("user.dir"),
aoqi@0	143	"Foo.class").toUri()), "assignLambda", assignmentExpectedLNT);
aoqi@0	144	checkClassFile(new File(Paths.get(System.getProperty("user.dir"),
aoqi@0	145	"Foo.class").toUri()), "callLambda", callExpectedLNT);
aoqi@0	146	}
aoqi@0	147
aoqi@0	148	void compileTestClass() throws Exception {
aoqi@0	149	ToolBox.JavaToolArgs javacSuccessArgs =
aoqi@0	150	new ToolBox.JavaToolArgs().setSources(testSource);
aoqi@0	151	ToolBox.javac(javacSuccessArgs);
aoqi@0	152	}
aoqi@0	153
aoqi@0	154	void checkClassFile(final File cfile, String methodToFind, int[][] expectedLNT) throws Exception {
aoqi@0	155	ClassFile classFile = ClassFile.read(cfile);
aoqi@0	156	boolean methodFound = false;
aoqi@0	157	for (Method method : classFile.methods) {
aoqi@0	158	if (method.getName(classFile.constant_pool).equals(methodToFind)) {
aoqi@0	159	methodFound = true;
aoqi@0	160	Code_attribute code = (Code_attribute) method.attributes.get("Code");
aoqi@0	161	LineNumberTable_attribute lnt =
aoqi@0	162	(LineNumberTable_attribute) code.attributes.get("LineNumberTable");
aoqi@0	163	Assert.check(lnt.line_number_table_length == expectedLNT.length,
aoqi@0	164	"The LineNumberTable found has a length different to the expected one");
aoqi@0	165	int i = 0;
aoqi@0	166	for (LineNumberTable_attribute.Entry entry: lnt.line_number_table) {
aoqi@0	167	Assert.check(entry.line_number == expectedLNT[i][0] &&
aoqi@0	168	entry.start_pc == expectedLNT[i][1],
aoqi@0	169	"LNT entry at pos " + i + " differ from expected." +
aoqi@0	170	"Found " + entry.line_number + ":" + entry.start_pc +
aoqi@0	171	". Expected " + expectedLNT[i][0] + ":" + expectedLNT[i][1]);
aoqi@0	172	i++;
aoqi@0	173	}
aoqi@0	174	}
aoqi@0	175	}
aoqi@0	176	Assert.check(methodFound, "The seek method was not found");
aoqi@0	177	}
aoqi@0	178
aoqi@0	179	void error(String msg) {
aoqi@0	180	throw new AssertionError(msg);
aoqi@0	181	}
aoqi@0	182
aoqi@0	183	}