com.sk89q.util.ReflectionUtil Maven / Gradle / Ivy

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/*
 * WorldEdit, a Minecraft world manipulation toolkit
 * Copyright (C) sk89q 
 * Copyright (C) WorldEdit team and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */

package com.sk89q.util;

import java.lang.reflect.Field;

public final class ReflectionUtil {

    private ReflectionUtil() {
    }

    //FAWE start
    public static  T getField(Object from, String name) {
        if (from instanceof Class) {
            return getField((Class) from, null, name);
        } else {
            return getField(from.getClass(), from, name);
        }
    }
    //FAWE end

    @SuppressWarnings("unchecked")
    public static  T getField(Class checkClass, Object from, String name) {
        do {
            try {
                Field field = checkClass.getDeclaredField(name);
                field.setAccessible(true);
                return (T) field.get(from);
            } catch (NoSuchFieldException | IllegalAccessException ignored) {
            }
        } while (checkClass.getSuperclass() != Object.class && ((checkClass = checkClass.getSuperclass()) != null));
        return null;
    }

}