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    • org.pkl.thirdparty.kotlin.jvm.internal.SpreadBuilder Maven / Gradle / Ivy

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    Fat Jar containing pkl-cli, pkl-codegen-java, pkl-codegen-kotlin, pkl-config-java, pkl-core, pkl-doc, and their shaded third-party dependencies.

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    /*
 * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
 * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
 */

package org.pkl.thirdparty.kotlin.jvm.internal;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;

public class SpreadBuilder {

    private final ArrayList list;

    public SpreadBuilder(int size) {
        list = new ArrayList(size);
    }

    @SuppressWarnings("unchecked")
    public void addSpread(Object container) {
        if (container == null) return;

        if (container instanceof Object[]) {
            Object[] array = (Object[]) container;
            if (array.length > 0) {
                list.ensureCapacity(list.size() + array.length);
                Collections.addAll(list, array);
            }
        }
        else if (container instanceof Collection) {
            list.addAll((Collection) container);
        }
        else if (container instanceof Iterable) {
            for (Object element : (Iterable) container) {
                list.add(element);
            }
        }
        else if (container instanceof Iterator) {
            for (Iterator iterator = (Iterator) container; iterator.hasNext(); ) {
                list.add(iterator.next());
            }
        }
        else {
            throw new UnsupportedOperationException("Don't know how to spread " + container.getClass());
        }
    }

    public int size() {
        return list.size();
    }

    public void add(Object element) {
        list.add(element);
    }

    public Object[] toArray(Object[] a) {
        return list.toArray(a);
    }
}
    
    
    
    

    




    
    
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