my-jdk/jdkSrc/jdk8/java/nio/HeapCharBuffer.java

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 * 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
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 *
 * 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.
 *
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// -- This file was mechanically generated: Do not edit! -- //

package java.nio;


/**

 * A read/write HeapCharBuffer.






 */

class HeapCharBuffer
    extends CharBuffer
{

    // For speed these fields are actually declared in X-Buffer;
    // these declarations are here as documentation
    /*

    protected final char[] hb;
    protected final int offset;

    */

    HeapCharBuffer(int cap, int lim) {            // package-private

        super(-1, 0, lim, cap, new char[cap], 0);
        /*
        hb = new char[cap];
        offset = 0;
        */




    }

    HeapCharBuffer(char[] buf, int off, int len) { // package-private

        super(-1, off, off + len, buf.length, buf, 0);
        /*
        hb = buf;
        offset = 0;
        */




    }

    protected HeapCharBuffer(char[] buf,
                                   int mark, int pos, int lim, int cap,
                                   int off)
    {

        super(mark, pos, lim, cap, buf, off);
        /*
        hb = buf;
        offset = off;
        */




    }

    public CharBuffer slice() {
        int pos = this.position();
        int lim = this.limit();
        int rem = (pos <= lim ? lim - pos : 0);
        return new HeapCharBuffer(hb,
                                        -1,
                                        0,
                                        rem,
                                        rem,
                                        pos + offset);
    }

    public CharBuffer duplicate() {
        return new HeapCharBuffer(hb,
                                        this.markValue(),
                                        this.position(),
                                        this.limit(),
                                        this.capacity(),
                                        offset);
    }

    public CharBuffer asReadOnlyBuffer() {

        return new HeapCharBufferR(hb,
                                     this.markValue(),
                                     this.position(),
                                     this.limit(),
                                     this.capacity(),
                                     offset);



    }



    protected int ix(int i) {
        return i + offset;
    }

    public char get() {
        return hb[ix(nextGetIndex())];
    }

    public char get(int i) {
        return hb[ix(checkIndex(i))];
    }


    char getUnchecked(int i) {
	return hb[ix(i)];
    }


    public CharBuffer get(char[] dst, int offset, int length) {
        checkBounds(offset, length, dst.length);
        int pos = position();
        if (length > limit() - pos)
            throw new BufferUnderflowException();
        System.arraycopy(hb, ix(pos), dst, offset, length);
        position(pos + length);
        return this;
    }

    public boolean isDirect() {
        return false;
    }



    public boolean isReadOnly() {
        return false;
    }

    public CharBuffer put(char x) {

        hb[ix(nextPutIndex())] = x;
        return this;



    }

    public CharBuffer put(int i, char x) {

        hb[ix(checkIndex(i))] = x;
        return this;



    }

    public CharBuffer put(char[] src, int offset, int length) {

        checkBounds(offset, length, src.length);
        int pos = position();
        if (length > limit() - pos)
            throw new BufferOverflowException();
        System.arraycopy(src, offset, hb, ix(pos), length);
        position(pos + length);
        return this;



    }

    public CharBuffer put(CharBuffer src) {

        if (src instanceof HeapCharBuffer) {
            if (src == this)
                throw new IllegalArgumentException();
            HeapCharBuffer sb = (HeapCharBuffer)src;
            int pos = position();
            int sbpos = sb.position();
            int n = sb.limit() - sbpos;
            if (n > limit() - pos)
                throw new BufferOverflowException();
            System.arraycopy(sb.hb, sb.ix(sbpos),
                             hb, ix(pos), n);
            sb.position(sbpos + n);
            position(pos + n);
        } else if (src.isDirect()) {
            int n = src.remaining();
            int pos = position();
            if (n > limit() - pos)
                throw new BufferOverflowException();
            src.get(hb, ix(pos), n);
            position(pos + n);
        } else {
            super.put(src);
        }
        return this;



    }

    public CharBuffer compact() {

        int pos = position();
        int lim = limit();
        assert (pos <= lim);
        int rem = (pos <= lim ? lim - pos : 0);
        System.arraycopy(hb, ix(pos), hb, ix(0), rem);
        position(rem);
        limit(capacity());
        discardMark();
        return this;



    }














































































































































































































































































































































    String toString(int start, int end) {               // package-private
        try {
            return new String(hb, start + offset, end - start);
        } catch (StringIndexOutOfBoundsException x) {
            throw new IndexOutOfBoundsException();
        }
    }


    // --- Methods to support CharSequence ---

    public CharBuffer subSequence(int start, int end) {
        if ((start < 0)
            || (end > length())
            || (start > end))
            throw new IndexOutOfBoundsException();
        int pos = position();
        return new HeapCharBuffer(hb,
                                      -1,
                                      pos + start,
                                      pos + end,
                                      capacity(),
                                      offset);
    }






    public ByteOrder order() {
        return ByteOrder.nativeOrder();
    }



}