Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/tree/T6993305.java
test/tools/javac/tree/T6993305.java
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| 1 /* | |
| 2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test | |
| 26 * @bug 6993305 | |
| 27 * @summary starting position of a method without modifiers and with type parameters is incorrect | |
| 28 */ | |
| 29 | |
| 30 import java.io.File; | |
| 31 import javax.tools.JavaFileObject; | |
| 32 import javax.tools.StandardJavaFileManager; | |
| 33 | |
| 34 import com.sun.source.tree.CompilationUnitTree; | |
| 35 import com.sun.source.tree.MethodTree; | |
| 36 import com.sun.source.util.JavacTask; | |
| 37 import com.sun.source.util.SourcePositions; | |
| 38 import com.sun.source.util.TreeScanner; | |
| 39 import com.sun.source.util.Trees; | |
| 40 import com.sun.tools.javac.api.JavacTool; | |
| 41 import java.io.IOException; | |
| 42 | |
| 43 /* | |
| 44 * Test verifies the starting position of all methods by computing the start position | |
| 45 * of each method as the first non-white character on the first line containing | |
| 46 * (" " + methodName + "("), and then comparing this value against the reported | |
| 47 * value in the SourcePositions table. | |
| 48 */ | |
| 49 public class T6993305 { | |
| 50 <T> void test1(T t) { } // this is the primary case to be tested | |
| 51 public <T> void test2(T t) { } | |
| 52 @Deprecated <T> void test3(T t) { } | |
| 53 | |
| 54 public static void main(String... args) throws Exception { | |
| 55 new T6993305().run(); | |
| 56 } | |
| 57 | |
| 58 void run() throws Exception { | |
| 59 File testSrc = new File(System.getProperty("test.src")); | |
| 60 | |
| 61 JavacTool tool = JavacTool.create(); | |
| 62 StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null); | |
| 63 | |
| 64 File f = new File(testSrc, T6993305.class.getSimpleName() + ".java"); | |
| 65 Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjects(f); | |
| 66 JavacTask task = tool.getTask(null, fm, null, null, null, fos); | |
| 67 Iterable<? extends CompilationUnitTree> cus = task.parse(); | |
| 68 | |
| 69 TestScanner s = new TestScanner(); | |
| 70 s.scan(cus, task); | |
| 71 | |
| 72 if (errors > 0) | |
| 73 throw new Exception(errors + " errors occurred"); | |
| 74 } | |
| 75 | |
| 76 void error(String msg) { | |
| 77 System.err.println("Error: " + msg); | |
| 78 errors++; | |
| 79 } | |
| 80 | |
| 81 int errors; | |
| 82 | |
| 83 class TestScanner extends TreeScanner<Void, JavacTask> { | |
| 84 CompilationUnitTree cu; | |
| 85 SourcePositions sourcePositions; | |
| 86 String source; | |
| 87 | |
| 88 void show(String label, int pos) { | |
| 89 System.err.println(label + ": " + | |
| 90 source.substring(pos, Math.min(source.length(), pos + 10))); | |
| 91 } | |
| 92 | |
| 93 @Override public Void visitCompilationUnit(CompilationUnitTree tree, JavacTask task) { | |
| 94 cu = tree; | |
| 95 Trees trees = Trees.instance(task); | |
| 96 sourcePositions = trees.getSourcePositions(); | |
| 97 try { | |
| 98 source = String.valueOf(tree.getSourceFile().getCharContent(true)); | |
| 99 } catch (IOException e) { | |
| 100 throw new Error(e); | |
| 101 } | |
| 102 return super.visitCompilationUnit(tree, task); | |
| 103 } | |
| 104 | |
| 105 // this is the core of the test | |
| 106 @Override public Void visitMethod(MethodTree tree, JavacTask task) { | |
| 107 String name = String.valueOf(tree.getName()); | |
| 108 int pos = source.indexOf(" " + name + "("); | |
| 109 while (source.charAt(pos - 1) != '\n') pos--; | |
| 110 while (source.charAt(pos) == ' ') pos++; | |
| 111 int expectedStart = pos; | |
| 112 int reportedStart = (int) sourcePositions.getStartPosition(cu, tree); | |
| 113 System.err.println("Method " + name | |
| 114 + " expectedStart:" + expectedStart | |
| 115 + " reportedStart:" + reportedStart); | |
| 116 if (expectedStart != reportedStart) { | |
| 117 error("Unexpected value for " + name); | |
| 118 show("expected", expectedStart); | |
| 119 show("reported", reportedStart); | |
| 120 } | |
| 121 return super.visitMethod(tree, task); | |
| 122 } | |
| 123 } | |
| 124 } |
