1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/tree/T6993305.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,124 @@
1.4 +/*
1.5 + * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @bug 6993305
1.30 + * @summary starting position of a method without modifiers and with type parameters is incorrect
1.31 + */
1.32 +
1.33 +import java.io.File;
1.34 +import javax.tools.JavaFileObject;
1.35 +import javax.tools.StandardJavaFileManager;
1.36 +
1.37 +import com.sun.source.tree.CompilationUnitTree;
1.38 +import com.sun.source.tree.MethodTree;
1.39 +import com.sun.source.util.JavacTask;
1.40 +import com.sun.source.util.SourcePositions;
1.41 +import com.sun.source.util.TreeScanner;
1.42 +import com.sun.source.util.Trees;
1.43 +import com.sun.tools.javac.api.JavacTool;
1.44 +import java.io.IOException;
1.45 +
1.46 +/*
1.47 + * Test verifies the starting position of all methods by computing the start position
1.48 + * of each method as the first non-white character on the first line containing
1.49 + * (" " + methodName + "("), and then comparing this value against the reported
1.50 + * value in the SourcePositions table.
1.51 + */
1.52 +public class T6993305 {
1.53 + <T> void test1(T t) { } // this is the primary case to be tested
1.54 + public <T> void test2(T t) { }
1.55 + @Deprecated <T> void test3(T t) { }
1.56 +
1.57 + public static void main(String... args) throws Exception {
1.58 + new T6993305().run();
1.59 + }
1.60 +
1.61 + void run() throws Exception {
1.62 + File testSrc = new File(System.getProperty("test.src"));
1.63 +
1.64 + JavacTool tool = JavacTool.create();
1.65 + StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
1.66 +
1.67 + File f = new File(testSrc, T6993305.class.getSimpleName() + ".java");
1.68 + Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjects(f);
1.69 + JavacTask task = tool.getTask(null, fm, null, null, null, fos);
1.70 + Iterable<? extends CompilationUnitTree> cus = task.parse();
1.71 +
1.72 + TestScanner s = new TestScanner();
1.73 + s.scan(cus, task);
1.74 +
1.75 + if (errors > 0)
1.76 + throw new Exception(errors + " errors occurred");
1.77 + }
1.78 +
1.79 + void error(String msg) {
1.80 + System.err.println("Error: " + msg);
1.81 + errors++;
1.82 + }
1.83 +
1.84 + int errors;
1.85 +
1.86 + class TestScanner extends TreeScanner<Void, JavacTask> {
1.87 + CompilationUnitTree cu;
1.88 + SourcePositions sourcePositions;
1.89 + String source;
1.90 +
1.91 + void show(String label, int pos) {
1.92 + System.err.println(label + ": " +
1.93 + source.substring(pos, Math.min(source.length(), pos + 10)));
1.94 + }
1.95 +
1.96 + @Override public Void visitCompilationUnit(CompilationUnitTree tree, JavacTask task) {
1.97 + cu = tree;
1.98 + Trees trees = Trees.instance(task);
1.99 + sourcePositions = trees.getSourcePositions();
1.100 + try {
1.101 + source = String.valueOf(tree.getSourceFile().getCharContent(true));
1.102 + } catch (IOException e) {
1.103 + throw new Error(e);
1.104 + }
1.105 + return super.visitCompilationUnit(tree, task);
1.106 + }
1.107 +
1.108 + // this is the core of the test
1.109 + @Override public Void visitMethod(MethodTree tree, JavacTask task) {
1.110 + String name = String.valueOf(tree.getName());
1.111 + int pos = source.indexOf(" " + name + "(");
1.112 + while (source.charAt(pos - 1) != '\n') pos--;
1.113 + while (source.charAt(pos) == ' ') pos++;
1.114 + int expectedStart = pos;
1.115 + int reportedStart = (int) sourcePositions.getStartPosition(cu, tree);
1.116 + System.err.println("Method " + name
1.117 + + " expectedStart:" + expectedStart
1.118 + + " reportedStart:" + reportedStart);
1.119 + if (expectedStart != reportedStart) {
1.120 + error("Unexpected value for " + name);
1.121 + show("expected", expectedStart);
1.122 + show("reported", reportedStart);
1.123 + }
1.124 + return super.visitMethod(tree, task);
1.125 + }
1.126 + }
1.127 +}
