128 lines
4.7 KiB
Java
128 lines
4.7 KiB
Java
/*
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* Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6993305
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* @summary starting position of a method without modifiers and with type parameters is incorrect
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* @modules jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.file
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*/
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import java.io.File;
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import javax.tools.JavaFileObject;
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import javax.tools.StandardJavaFileManager;
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import com.sun.source.tree.CompilationUnitTree;
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import com.sun.source.tree.MethodTree;
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import com.sun.source.util.JavacTask;
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import com.sun.source.util.SourcePositions;
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import com.sun.source.util.TreeScanner;
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import com.sun.source.util.Trees;
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import com.sun.tools.javac.api.JavacTool;
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import java.io.IOException;
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/*
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* Test verifies the starting position of all methods by computing the start position
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* of each method as the first non-white character on the first line containing
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* (" " + methodName + "("), and then comparing this value against the reported
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* value in the SourcePositions table.
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*/
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public class T6993305 {
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<T> void test1(T t) { } // this is the primary case to be tested
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public <T> void test2(T t) { }
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@Deprecated <T> void test3(T t) { }
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public static void main(String... args) throws Exception {
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new T6993305().run();
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}
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void run() throws Exception {
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File testSrc = new File(System.getProperty("test.src"));
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JavacTool tool = JavacTool.create();
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try (StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null)) {
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File f = new File(testSrc, T6993305.class.getSimpleName() + ".java");
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Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjects(f);
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JavacTask task = tool.getTask(null, fm, null, null, null, fos);
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Iterable<? extends CompilationUnitTree> cus = task.parse();
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TestScanner s = new TestScanner();
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s.scan(cus, task);
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if (errors > 0)
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throw new Exception(errors + " errors occurred");
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}
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}
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void error(String msg) {
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System.err.println("Error: " + msg);
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errors++;
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}
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int errors;
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class TestScanner extends TreeScanner<Void, JavacTask> {
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CompilationUnitTree cu;
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SourcePositions sourcePositions;
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String source;
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void show(String label, int pos) {
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System.err.println(label + ": " +
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source.substring(pos, Math.min(source.length(), pos + 10)));
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}
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@Override public Void visitCompilationUnit(CompilationUnitTree tree, JavacTask task) {
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cu = tree;
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Trees trees = Trees.instance(task);
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sourcePositions = trees.getSourcePositions();
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try {
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source = String.valueOf(tree.getSourceFile().getCharContent(true));
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} catch (IOException e) {
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throw new Error(e);
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}
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return super.visitCompilationUnit(tree, task);
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}
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// this is the core of the test
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@Override public Void visitMethod(MethodTree tree, JavacTask task) {
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String name = String.valueOf(tree.getName());
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int pos = source.indexOf(" " + name + "(");
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while (source.charAt(pos - 1) != '\n') pos--;
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while (source.charAt(pos) == ' ') pos++;
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int expectedStart = pos;
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int reportedStart = (int) sourcePositions.getStartPosition(cu, tree);
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System.err.println("Method " + name
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+ " expectedStart:" + expectedStart
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+ " reportedStart:" + reportedStart);
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if (expectedStart != reportedStart) {
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error("Unexpected value for " + name);
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show("expected", expectedStart);
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show("reported", reportedStart);
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}
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return super.visitMethod(tree, task);
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}
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}
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}
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