1/* 2 * Copyright (c) 2011, 2015, 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 7080267 27 * @summary Call to toString() from an ExpressionStatementTree doesn't take in 28 * consideration the ";" at the end 29 * @modules jdk.compiler/com.sun.tools.javac.api 30 * jdk.compiler/com.sun.tools.javac.file 31 */ 32 33import com.sun.source.tree.BlockTree; 34import com.sun.source.tree.CompilationUnitTree; 35import com.sun.source.tree.StatementTree; 36import com.sun.source.tree.Tree; 37import java.io.IOException; 38import java.net.URI; 39import java.util.Arrays; 40import java.util.Collections; 41import java.util.List; 42import javax.tools.JavaFileObject; 43import javax.tools.SimpleJavaFileObject; 44import javax.tools.StandardJavaFileManager; 45 46import com.sun.source.util.JavacTask; 47import com.sun.source.util.TreeScanner; 48import com.sun.tools.javac.api.JavacTool; 49 50public class TestToString { 51 String[] statements = { 52 "i = i + 1;", 53 "i++;", 54 "m();", 55 ";", 56 "if (i == 0) return;", 57 "while (i > 0) i--;", 58 "{ }", 59 "{ i++; }", 60 "class C { }" 61 }; 62 63 public static void main(String... args) throws Exception { 64 new TestToString().run(); 65 } 66 67 void run() throws Exception { 68 try { 69 for (String s: statements) { 70 test(s); 71 } 72 73 if (errors > 0) 74 throw new Exception(errors + " errors found"); 75 } finally { 76 fm.close(); 77 } 78 } 79 80 void test(String stmt) throws IOException { 81 System.err.println("Test: " + stmt); 82 List<String> options = Collections.<String>emptyList(); 83 List<? extends JavaFileObject> files = Arrays.asList(new JavaSource(stmt)); 84 JavacTask t = tool.getTask(null, fm, null, options, null, files); 85 checkEqual(scan(t.parse()), stmt); 86 } 87 88 String scan(Iterable<? extends CompilationUnitTree> trees) { 89 class Scanner extends TreeScanner<Void,StringBuilder> { 90 String scan(Iterable<? extends Tree> trees) { 91 StringBuilder sb = new StringBuilder(); 92 scan(trees, sb); 93 return sb.toString(); 94 } 95 @Override 96 public Void scan(Tree tree, StringBuilder sb) { 97 if (print && tree instanceof StatementTree) { 98 sb.append(PREFIX); 99 sb.append(tree); 100 sb.append(SUFFIX); 101 return null; 102 } else { 103 return super.scan(tree, sb); 104 } 105 } 106 @Override 107 public Void visitBlock(BlockTree tree, StringBuilder sb) { 108 print = true; 109 try { 110 return super.visitBlock(tree, sb); 111 } finally { 112 print = false; 113 } 114 } 115 boolean print = false; 116 } 117 return new Scanner().scan(trees); 118 } 119 120 void checkEqual(String found, String expect) { 121 boolean match = (found == null) ? (expect == null) : 122 expect.equals(found 123 .replaceAll("^\\Q" + PREFIX + "\\E\\s*", "") 124 .replaceAll("\\s*\\Q" + SUFFIX + "\\E$", "") 125 .replaceAll("\\s+", " ")); 126 127 if (!match) 128 error("Mismatch: expected: " + expect + " found: " + found); 129 } 130 131 132 133 void error(String msg) { 134 System.err.println("Error: " + msg); 135 errors++; 136 } 137 138 static final String PREFIX = "#<"; 139 static final String SUFFIX = "#>"; 140 141 JavacTool tool = JavacTool.create(); 142 StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null); 143 int errors = 0; 144 145 static class JavaSource extends SimpleJavaFileObject { 146 147 String source = 148 "class Test {\n" + 149 " int i;\n" + 150 " void m() {\n" + 151 " #S\n" + 152 " }\n" + 153 "}"; 154 155 public JavaSource(String stmt) { 156 super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); 157 source = source.replace("#S", stmt); 158 } 159 160 @Override 161 public CharSequence getCharContent(boolean ignoreEncodingErrors) { 162 return source; 163 } 164 } 165} 166