| /* |
| * Copyright (c) 2016, 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 8056897 |
| * @modules jdk.compiler/com.sun.tools.javac.parser |
| * jdk.compiler/com.sun.tools.javac.util |
| * @summary Proper lexing of integer literals. |
| */ |
| |
| import java.io.IOException; |
| import java.net.URI; |
| import java.util.Objects; |
| |
| import javax.tools.JavaFileObject; |
| import javax.tools.SimpleJavaFileObject; |
| |
| import com.sun.tools.javac.parser.JavaTokenizer; |
| import com.sun.tools.javac.parser.ScannerFactory; |
| import com.sun.tools.javac.parser.Tokens.Token; |
| import com.sun.tools.javac.parser.Tokens.TokenKind; |
| import com.sun.tools.javac.util.Context; |
| import com.sun.tools.javac.util.Log; |
| |
| public class JavaLexerTest { |
| public static void main(String... args) throws Exception { |
| new JavaLexerTest().run(); |
| } |
| |
| void run() throws Exception { |
| Context ctx = new Context(); |
| Log log = Log.instance(ctx); |
| String input = "0bL 0b20L 0xL "; |
| log.useSource(new SimpleJavaFileObject(new URI("mem://Test.java"), JavaFileObject.Kind.SOURCE) { |
| @Override |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException { |
| return input; |
| } |
| }); |
| char[] inputArr = input.toCharArray(); |
| JavaTokenizer tokenizer = new JavaTokenizer(ScannerFactory.instance(ctx), inputArr, inputArr.length) { |
| }; |
| |
| assertKind(input, tokenizer, TokenKind.LONGLITERAL, "0bL"); |
| assertKind(input, tokenizer, TokenKind.LONGLITERAL, "0b20L"); |
| assertKind(input, tokenizer, TokenKind.LONGLITERAL, "0xL"); |
| } |
| |
| void assertKind(String input, JavaTokenizer tokenizer, TokenKind kind, String expectedText) { |
| Token token = tokenizer.readToken(); |
| |
| if (token.kind != kind) { |
| throw new AssertionError("Unexpected token kind: " + token.kind); |
| } |
| |
| String actualText = input.substring(token.pos, token.endPos); |
| |
| if (!Objects.equals(actualText, expectedText)) { |
| throw new AssertionError("Unexpected token text: " + actualText); |
| } |
| } |
| } |