98 lines
3.3 KiB
Java
98 lines
3.3 KiB
Java
/*
|
|
* Copyright (c) 2014, 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 8033581 8033798 8033726
|
|
* @summary Check whitespace in generated output
|
|
* @modules jdk.jdeps/com.sun.tools.javap
|
|
*/
|
|
|
|
import java.io.*;
|
|
import java.util.*;
|
|
|
|
public class WhitespaceTest {
|
|
public static void main(String... args) throws Exception {
|
|
new WhitespaceTest().run();
|
|
}
|
|
|
|
void run() throws Exception {
|
|
test("-v", "java.lang.Object");
|
|
test("-XDtab:1", "-v", "java.lang.Object");
|
|
|
|
String testClasses = System.getProperty("test.classes");
|
|
for (int i = 10; i < 40; i++)
|
|
test("-XDtab:" + i, "-v", "-classpath", testClasses, "WhitespaceTest$HelloWorld");
|
|
|
|
if (errors > 0)
|
|
throw new Exception(errors + " errors found");
|
|
}
|
|
|
|
void test(String... args) throws Exception {
|
|
// need to avoid "//" appearing as a constant in the constant pool
|
|
String slash = "/";
|
|
String doubleSlash = slash + slash;
|
|
System.out.println("test: " + Arrays.asList(args));
|
|
String out = javap(args);
|
|
for (String line: out.split("[\r\n]+")) {
|
|
if (line.endsWith(" "))
|
|
error("line has trailing whitespace: " + line);
|
|
int comment = line.indexOf(doubleSlash);
|
|
if (comment > 0 && line.charAt(comment - 1) != ' ') {
|
|
// make allowance for URLs
|
|
if (!line.matches(".*\\bfile:/{3}.*"))
|
|
error("no space before comment: " + line);
|
|
}
|
|
if (line.matches(" +}"))
|
|
error("bad indentation: " + line);
|
|
}
|
|
}
|
|
|
|
String javap(String... args) throws Exception {
|
|
StringWriter sw = new StringWriter();
|
|
PrintWriter out = new PrintWriter(sw);
|
|
int rc = com.sun.tools.javap.Main.run(args, out);
|
|
out.close();
|
|
System.out.println(sw.toString());
|
|
if (rc < 0)
|
|
throw new Exception("javap exited, rc=" + rc);
|
|
return sw.toString();
|
|
}
|
|
|
|
void error(String msg) {
|
|
System.out.println("Error: " + msg);
|
|
errors++;
|
|
}
|
|
|
|
int errors;
|
|
|
|
// small class to test repeatedly with different tab values
|
|
static class HelloWorld {
|
|
public static void main(String... args) {
|
|
System.out.println("Hello World!");
|
|
}
|
|
}
|
|
}
|
|
|
|
|