JDK 11 jdk.scripting.nashorn.jmod is the JMOD file for JDK 11 Scripting Nashorn module.

JDK 11 Scripting Nashorn module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.scripting.nashorn.jmod.

JDK 11 Scripting Nashorn module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Scripting Nashorn module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.scripting.nashorn.

You can click and view the content of each source code file in the list below.

⏎ jdk/nashorn/internal/runtime/arrays/DeletedRangeArrayFilter.java

/*
 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
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 *
 *
 *
 *
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 *
 *
 *
 *
 *
 *
 *
 */

package jdk.nashorn.internal.runtime.arrays;

import java.lang.reflect.Array;
import jdk.nashorn.internal.runtime.ScriptRuntime;

/**
 * This filter handles the deletion of array elements.
 */
final class DeletedRangeArrayFilter extends ArrayFilter {
    /** Range (inclusive) tracking deletions */
    private long lo, hi;

    DeletedRangeArrayFilter(final ArrayData underlying, final long lo, final long hi) {
        super(maybeSparse(underlying, hi));
        this.lo = lo;
        this.hi = hi;
    }

    private static ArrayData maybeSparse(final ArrayData underlying, final long hi) {
        if (hi < SparseArrayData.MAX_DENSE_LENGTH || underlying instanceof SparseArrayData) {
            return underlying;
        }
        return new SparseArrayData(underlying, underlying.length());
    }

    private boolean isEmpty() {
        return lo > hi;
    }

    private boolean isDeleted(final int index) {
        final long longIndex = ArrayIndex.toLongIndex(index);
        return lo <= longIndex && longIndex <= hi;
    }

    @Override
    public ArrayData copy() {
        return new DeletedRangeArrayFilter(underlying.copy(), lo, hi);
    }

    @Override
    public Object[] asObjectArray() {
        final Object[] value = super.asObjectArray();

        if (lo < Integer.MAX_VALUE) {
            final int end = (int)Math.min(hi + 1, Integer.MAX_VALUE);
            for (int i = (int)lo; i < end; i++) {
                value[i] = ScriptRuntime.UNDEFINED;
            }
        }

        return value;
    }

    @Override
    public Object asArrayOfType(final Class<?> componentType) {
        final Object value = super.asArrayOfType(componentType);
        final Object undefValue = convertUndefinedValue(componentType);

        if (lo < Integer.MAX_VALUE) {
            final int end = (int)Math.min(hi + 1, Integer.MAX_VALUE);
            for (int i = (int)lo; i < end; i++) {
                Array.set(value, i, undefValue);
            }
        }

        return value;
    }

    @Override
    public ArrayData ensure(final long safeIndex) {
        if (safeIndex >= SparseArrayData.MAX_DENSE_LENGTH && safeIndex >= length()) {
            return new SparseArrayData(this, safeIndex + 1);
        }

        return super.ensure(safeIndex);
    }

    @Override
    public ArrayData shiftLeft(final int by) {
        super.shiftLeft(by);
        lo = Math.max(0, lo - by);
        hi = Math.max(-1, hi - by);

        return isEmpty() ? getUnderlying() : this;
    }

    @Override
    public ArrayData shiftRight(final int by) {
        super.shiftRight(by);
        final long len = length();
        lo = Math.min(len, lo + by);
        hi = Math.min(len - 1, hi + by);

        return isEmpty() ? getUnderlying() : this;
    }

    @Override
    public ArrayData shrink(final long newLength) {
        super.shrink(newLength);
        lo = Math.min(newLength, lo);
        hi = Math.min(newLength - 1, hi);

        return isEmpty() ? getUnderlying() : this;
    }

    @Override
    public ArrayData set(final int index, final Object value, final boolean strict) {
        final long longIndex = ArrayIndex.toLongIndex(index);
        if (longIndex < lo || longIndex > hi) {
            return super.set(index, value, strict);
        } else if (longIndex > lo && longIndex < hi) {
            return getDeletedArrayFilter().set(index, value, strict);
        }
        if (longIndex == lo) {
            lo++;
        } else {
            assert longIndex == hi;
            hi--;
        }

        return isEmpty() ? getUnderlying().set(index, value, strict) : super.set(index, value, strict);
    }

    @Override
    public ArrayData set(final int index, final int value, final boolean strict) {
        final long longIndex = ArrayIndex.toLongIndex(index);
        if (longIndex < lo || longIndex > hi) {
            return super.set(index, value, strict);
        } else if (longIndex > lo && longIndex < hi) {
            return getDeletedArrayFilter().set(index, value, strict);
        }
        if (longIndex == lo) {
            lo++;
        } else {
            assert longIndex == hi;
            hi--;
        }

        return isEmpty() ? getUnderlying().set(index, value, strict) : super.set(index, value, strict);
    }

    @Override
    public ArrayData set(final int index, final double value, final boolean strict) {
        final long longIndex = ArrayIndex.toLongIndex(index);
        if (longIndex < lo || longIndex > hi) {
            return super.set(index, value, strict);
        } else if (longIndex > lo && longIndex < hi) {
            return getDeletedArrayFilter().set(index, value, strict);
        }
        if (longIndex == lo) {
            lo++;
        } else {
            assert longIndex == hi;
            hi--;
        }

        return isEmpty() ? getUnderlying().set(index, value, strict) : super.set(index, value, strict);
    }

    @Override
    public boolean has(final int index) {
        return super.has(index) && !isDeleted(index);
    }

    private ArrayData getDeletedArrayFilter() {
        final ArrayData deleteFilter = new DeletedArrayFilter(getUnderlying());
        deleteFilter.delete(lo, hi);
        return deleteFilter;
    }

    @Override
    public ArrayData delete(final int index) {
        final long longIndex = ArrayIndex.toLongIndex(index);
        underlying.setEmpty(index);

        if (longIndex + 1 == lo) {
            lo = longIndex;
        } else if (longIndex - 1 == hi) {
            hi = longIndex;
        } else if (longIndex < lo || hi < longIndex) {
           return getDeletedArrayFilter().delete(index);
        }

        return this;
    }

    @Override
    public ArrayData delete(final long fromIndex, final long toIndex) {
        if (fromIndex > hi + 1  || toIndex < lo - 1) {
            return getDeletedArrayFilter().delete(fromIndex, toIndex);
        }
        lo = Math.min(fromIndex, lo);
        hi = Math.max(toIndex, hi);
        underlying.setEmpty(lo, hi);
        return this;
    }

    @Override
    public Object pop() {
        final int index = (int)length() - 1;
        if (super.has(index)) {
            final boolean isDeleted = isDeleted(index);
            final Object value      = super.pop();

            lo = Math.min(index + 1, lo);
            hi = Math.min(index, hi);
            return isDeleted ? ScriptRuntime.UNDEFINED : value;
        }

        return super.pop();
    }

    @Override
    public ArrayData slice(final long from, final long to) {
        return new DeletedRangeArrayFilter(underlying.slice(from, to), Math.max(0, lo - from), Math.max(0, hi - from));
    }
}

⏎ jdk/nashorn/internal/runtime/arrays/DeletedRangeArrayFilter.java

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File name: jdk.scripting.nashorn-11.0.1-src.zip
File size: 1390965 bytes
Release date: 2018-11-04
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