| /* |
| * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 7080267 |
| * @summary Call to toString() from an ExpressionStatementTree doesn't take in |
| * consideration the ";" at the end |
| * @modules jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.file |
| */ |
| |
| import com.sun.source.tree.BlockTree; |
| import com.sun.source.tree.CompilationUnitTree; |
| import com.sun.source.tree.StatementTree; |
| import com.sun.source.tree.Tree; |
| import java.io.IOException; |
| import java.net.URI; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import javax.tools.JavaFileObject; |
| import javax.tools.SimpleJavaFileObject; |
| import javax.tools.StandardJavaFileManager; |
| |
| import com.sun.source.util.JavacTask; |
| import com.sun.source.util.TreeScanner; |
| import com.sun.tools.javac.api.JavacTool; |
| |
| public class TestToString { |
| String[] statements = { |
| "i = i + 1;", |
| "i++;", |
| "m();", |
| ";", |
| "if (i == 0) return;", |
| "while (i > 0) i--;", |
| "{ }", |
| "{ i++; }", |
| "class C { }" |
| }; |
| |
| public static void main(String... args) throws Exception { |
| new TestToString().run(); |
| } |
| |
| void run() throws Exception { |
| try { |
| for (String s: statements) { |
| test(s); |
| } |
| |
| if (errors > 0) |
| throw new Exception(errors + " errors found"); |
| } finally { |
| fm.close(); |
| } |
| } |
| |
| void test(String stmt) throws IOException { |
| System.err.println("Test: " + stmt); |
| List<String> options = Collections.<String>emptyList(); |
| List<? extends JavaFileObject> files = Arrays.asList(new JavaSource(stmt)); |
| JavacTask t = tool.getTask(null, fm, null, options, null, files); |
| checkEqual(scan(t.parse()), stmt); |
| } |
| |
| String scan(Iterable<? extends CompilationUnitTree> trees) { |
| class Scanner extends TreeScanner<Void,StringBuilder> { |
| String scan(Iterable<? extends Tree> trees) { |
| StringBuilder sb = new StringBuilder(); |
| scan(trees, sb); |
| return sb.toString(); |
| } |
| @Override |
| public Void scan(Tree tree, StringBuilder sb) { |
| if (print && tree instanceof StatementTree) { |
| sb.append(PREFIX); |
| sb.append(tree); |
| sb.append(SUFFIX); |
| return null; |
| } else { |
| return super.scan(tree, sb); |
| } |
| } |
| @Override |
| public Void visitBlock(BlockTree tree, StringBuilder sb) { |
| print = true; |
| try { |
| return super.visitBlock(tree, sb); |
| } finally { |
| print = false; |
| } |
| } |
| boolean print = false; |
| } |
| return new Scanner().scan(trees); |
| } |
| |
| void checkEqual(String found, String expect) { |
| boolean match = (found == null) ? (expect == null) : |
| expect.equals(found |
| .replaceAll("^\\Q" + PREFIX + "\\E\\s*", "") |
| .replaceAll("\\s*\\Q" + SUFFIX + "\\E$", "") |
| .replaceAll("\\s+", " ")); |
| |
| if (!match) |
| error("Mismatch: expected: " + expect + " found: " + found); |
| } |
| |
| |
| |
| void error(String msg) { |
| System.err.println("Error: " + msg); |
| errors++; |
| } |
| |
| static final String PREFIX = "#<"; |
| static final String SUFFIX = "#>"; |
| |
| JavacTool tool = JavacTool.create(); |
| StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null); |
| int errors = 0; |
| |
| static class JavaSource extends SimpleJavaFileObject { |
| |
| String source = |
| "class Test {\n" + |
| " int i;\n" + |
| " void m() {\n" + |
| " #S\n" + |
| " }\n" + |
| "}"; |
| |
| public JavaSource(String stmt) { |
| super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
| source = source.replace("#S", stmt); |
| } |
| |
| @Override |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
| return source; |
| } |
| } |
| } |