java.lang.reflect.Constructor$_patch Maven / Gradle / Ivy

Go to download
/*
 * This code is based on OpenJDK source file(s) which contain the following copyright notice:
 *
 * ------
 * Copyright (c) 2001, 2021, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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.
 * ------
 *
 * This file may contain additional modifications which are Copyright (c) Red Hat and other
 * contributors.
 */

package java.lang.reflect;

import jdk.internal.reflect.ConstructorAccessor;

import org.qbicc.rt.annotation.Tracking;
import org.qbicc.runtime.Build;
import org.qbicc.runtime.patcher.Add;
import org.qbicc.runtime.patcher.PatchClass;
import org.qbicc.runtime.patcher.Replace;

/**
 * Build-time patches for {@link Constructor}.
 */
@PatchClass(Constructor.class)
@Tracking("src/java.base/share/classes/java/lang/reflect/Constructor.java")
public class Constructor$_patch {
    // Alias
    Constructor root;
    ConstructorAccessor constructorAccessor;
    native void setConstructorAccessor(ConstructorAccessor ma);

    @Replace
    private ConstructorAccessor acquireConstructorAccessor() {
        // First check to see if one has been created yet, and take it if so.
        ConstructorAccessor tmp = null;
        if (root != null) tmp = root.getConstructorAccessor();
        if (tmp != null) {
            constructorAccessor = tmp;
        } else {
            if (Build.isTarget()) {
                throw new UnsupportedOperationException("Must register " + this + " for runtime reflection at compile time");
            } else {
                // Otherwise create one and propagate it up to the root
                tmp = MethodHandleAccessorFactory$_aliases.newConstructorAccessor((Constructor) (Object) this);
                setConstructorAccessor(tmp);
            }
        }

        return tmp;
    }
}