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/*
* Copyright (c) 2013, 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 8023522
* @summary test Pretty print of type annotations
* @author wmdietl
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.tree
*/
import com.sun.source.tree.ClassTree;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.tools.javac.api.JavacTaskImpl;
import com.sun.tools.javac.tree.JCTree;
import java.io.IOException;
import java.net.URI;
import java.util.Arrays;
import java.util.List;
import java.util.LinkedList;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileManager;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.ToolProvider;
public class TypeAnnotationsPretty {
private final JavaCompiler tool;
TypeAnnotationsPretty() {
tool = ToolProvider.getSystemJavaCompiler();
}
private List<String> matches = new LinkedList<String>();
private List<String> mismatches = new LinkedList<String>();
public static void main(String... args) throws Exception {
TypeAnnotationsPretty tap = new TypeAnnotationsPretty();
tap.runField("@TA()\nObject cls = null");
tap.runField("@TA()\nObject cls = new @TA() Object()");
tap.runField("@TA()\nList<@TB() Object> cls = null");
tap.runField("@TA()\nList<@TB() Object> cls = new @TA() LinkedList<@TB() Object>()");
tap.runField("Class[] cls = null");
tap.runField("@TA()\nClass[] cls = null");
tap.runField("Class @TA() [] cls = null");
tap.runField("@TA()\nClass @TB() [] cls = null");
tap.runField("Class[] cls = new Class[]{Object.class}");
tap.runField("@TA()\nClass[] cls = new @TA() Class[]{Object.class}");
tap.runField("Class @TB() [] cls = new Class @TB() []{Object.class}");
tap.runField("@TA()\nClass @TB() [] cls = new @TA() Class @TB() []{Object.class}");
tap.runField("@TA()\nClass @TB() [] @TC() [] cls = new @TA() Class @TB() [10] @TC() []");
tap.runField("Class @TB() [] @TC() [] cls = new Class @TB() [10] @TC() []");
tap.runField("@TA()\nClass @TB() [] @TC() [] @TD() [] cls = new @TA() Class @TB() [10] @TC() [] @TD() []");
tap.runMethod("\n@TA()\nObject test(@TB()\nList<@TC() String> p) {\n" +
" return null;\n" +
"}");
if (!tap.matches.isEmpty()) {
for (String m : tap.matches)
System.out.println(m);
}
if (!tap.mismatches.isEmpty()) {
for (String mm : tap.mismatches)
System.err.println(mm + NL);
throw new RuntimeException("Tests failed!");
}
}
private static final String prefix =
"import java.lang.annotation.*;" +
"import java.util.*;" +
"public class Test {";
private static final String postfix =
"@Target(ElementType.TYPE_USE)" +
"@interface TA {}" +
"@Target(ElementType.TYPE_USE)" +
"@interface TB {}" +
"@Target(ElementType.TYPE_USE)" +
"@interface TC {}" +
"@Target(ElementType.TYPE_USE)" +
"@interface TD {}";
private static final String NL = System.getProperty("line.separator");
private void runField(String code) throws IOException {
String src = prefix +
code + "; }" +
postfix;
try (JavaFileManager fm = tool.getStandardFileManager(null, null, null)) {
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null, null,
null, Arrays.asList(new MyFileObject(src)));
for (CompilationUnitTree cut : ct.parse()) {
JCTree.JCVariableDecl var =
(JCTree.JCVariableDecl) ((ClassTree) cut.getTypeDecls().get(0)).getMembers().get(0);
checkMatch(code, var);
}
}
}
private void runMethod(String code) throws IOException {
String src = prefix +
code + "}" +
postfix;
try (JavaFileManager fm = tool.getStandardFileManager(null, null, null)) {
JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, null, null,
null, Arrays.asList(new MyFileObject(src)));
for (CompilationUnitTree cut : ct.parse()) {
JCTree.JCMethodDecl meth =
(JCTree.JCMethodDecl) ((ClassTree) cut.getTypeDecls().get(0)).getMembers().get(0);
checkMatch(code, meth);
}
}
}
void checkMatch(String code, JCTree tree) {
String expect = code.replace("\n", NL);
String found = tree.toString();
if (!expect.equals(found)) {
mismatches.add("Expected: " + expect + NL +
"Obtained: " + found);
} else {
matches.add("Passed: " + expect);
}
}
}
class MyFileObject extends SimpleJavaFileObject {
private String text;
public MyFileObject(String text) {
super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
this.text = text;
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return text;
}
}
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