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/*
* Copyright (C) 2017 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.javac;
import java.lang.reflect.Method;
import com.sun.tools.javac.tree.JCTree;
import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;
import com.sun.tools.javac.tree.JCTree.JCFieldAccess;
import com.sun.tools.javac.tree.JCTree.JCIdent;
// Supports JDK6-9
public class PackageName {
private static final Method packageNameMethod = getPackageNameMethod();
private static Method getPackageNameMethod() {
try {
return JCCompilationUnit.class.getDeclaredMethod("getPackageName");
} catch (Exception e) {
return null;
}
}
public static String getPackageName(JCCompilationUnit cu) {
JCTree t = getPackageNode(cu);
return t != null ? t.toString() : null;
}
public static JCTree getPackageNode(JCCompilationUnit cu) {
if (packageNameMethod != null) try {
Object pkg = packageNameMethod.invoke(cu);
return (pkg instanceof JCFieldAccess || pkg instanceof JCIdent) ? (JCTree) pkg : null;
} catch (Exception e) {}
return cu.pid instanceof JCFieldAccess || cu.pid instanceof JCIdent ? cu.pid : null;
}
}
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