| /* |
| * Copyright (c) 2005, 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 6304912 |
| * @summary unit test for Log |
| * @modules jdk.compiler/com.sun.tools.javac.file |
| * jdk.compiler/com.sun.tools.javac.parser |
| * jdk.compiler/com.sun.tools.javac.tree |
| * jdk.compiler/com.sun.tools.javac.util:+open |
| */ |
| import java.lang.reflect.Field; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.URI; |
| import java.util.Set; |
| import javax.tools.JavaFileObject; |
| import javax.tools.SimpleJavaFileObject; |
| import com.sun.tools.javac.file.JavacFileManager; |
| import com.sun.tools.javac.parser.Parser; |
| import com.sun.tools.javac.parser.ParserFactory; |
| import com.sun.tools.javac.tree.EndPosTable; |
| import com.sun.tools.javac.tree.JCTree; |
| import com.sun.tools.javac.tree.TreeScanner; |
| import com.sun.tools.javac.util.Context; |
| import com.sun.tools.javac.util.Log; |
| import com.sun.tools.javac.util.JCDiagnostic; |
| import com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag; |
| import com.sun.tools.javac.util.JCDiagnostic.Factory; |
| import com.sun.tools.javac.util.Options; |
| |
| public class TestLog |
| { |
| public static void main(String... args) throws Exception { |
| test(false); |
| test(true); |
| } |
| |
| static void test(boolean genEndPos) throws Exception { |
| Context context = new Context(); |
| |
| Options options = Options.instance(context); |
| options.put("diags", "%b:%s/%o/%e:%_%t%m|%p%m"); |
| |
| Log log = Log.instance(context); |
| Factory diagnosticFactory = JCDiagnostic.Factory.instance(context); |
| Field defaultErrorFlagsField = |
| JCDiagnostic.Factory.class.getDeclaredField("defaultErrorFlags"); |
| |
| defaultErrorFlagsField.setAccessible(true); |
| |
| Set<DiagnosticFlag> defaultErrorFlags = |
| (Set<DiagnosticFlag>) defaultErrorFlagsField.get(diagnosticFactory); |
| |
| defaultErrorFlags.add(DiagnosticFlag.MULTIPLE); |
| |
| JavacFileManager.preRegister(context); |
| ParserFactory pfac = ParserFactory.instance(context); |
| |
| final String text = |
| "public class Foo {\n" |
| + " public static void main(String[] args) {\n" |
| + " if (args.length == 0)\n" |
| + " System.out.println(\"no args\");\n" |
| + " else\n" |
| + " System.out.println(args.length + \" args\");\n" |
| + " }\n" |
| + "}\n"; |
| JavaFileObject fo = new StringJavaFileObject("Foo", text); |
| log.useSource(fo); |
| |
| CharSequence cs = fo.getCharContent(true); |
| Parser parser = pfac.newParser(cs, false, genEndPos, false); |
| JCTree.JCCompilationUnit tree = parser.parseCompilationUnit(); |
| log.setEndPosTable(fo, tree.endPositions); |
| |
| TreeScanner ts = new LogTester(log, tree.endPositions); |
| ts.scan(tree); |
| |
| check(log.nerrors, 4, "errors"); |
| check(log.nwarnings, 4, "warnings"); |
| } |
| |
| private static void check(int found, int expected, String name) { |
| if (found == expected) |
| System.err.println(found + " " + name + " found, as expected."); |
| else { |
| System.err.println("incorrect number of " + name + " found."); |
| System.err.println("expected: " + expected); |
| System.err.println(" found: " + found); |
| throw new IllegalStateException("test failed"); |
| } |
| } |
| |
| private static class LogTester extends TreeScanner { |
| LogTester(Log log, EndPosTable endPosTable) { |
| this.log = log; |
| this.endPosTable = endPosTable; |
| } |
| |
| public void visitIf(JCTree.JCIf tree) { |
| JCDiagnostic.DiagnosticPosition nil = null; |
| // generate dummy messages to exercise the log API |
| log.error("not.stmt"); |
| log.error(tree.pos, "not.stmt"); |
| log.error(tree.pos(), "not.stmt"); |
| log.error(nil, "not.stmt"); |
| |
| log.warning("div.zero"); |
| log.warning(tree.pos, "div.zero"); |
| log.warning(tree.pos(), "div.zero"); |
| log.warning(nil, "div.zero"); |
| } |
| |
| private Log log; |
| private EndPosTable endPosTable; |
| } |
| |
| private static class StringJavaFileObject extends SimpleJavaFileObject { |
| StringJavaFileObject(String name, String text) { |
| super(URI.create(name), JavaFileObject.Kind.SOURCE); |
| this.text = text; |
| } |
| public CharSequence getCharContent(boolean b) { |
| return text; |
| } |
| public InputStream openInputStream() { |
| throw new UnsupportedOperationException(); |
| } |
| public OutputStream openOutputStream() { |
| throw new UnsupportedOperationException(); |
| } |
| private String text; |
| } |
| } |