JDK8/Java8源码在线阅读
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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
* 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
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*/
#warn This file is preprocessed before being compiled
package java.nio;
/**
#if[rw]
* A read/write Heap$Type$Buffer.
#else[rw]
* A read-only Heap$Type$Buffer. This class extends the corresponding
* read/write class, overriding the mutation methods to throw a {@link
* ReadOnlyBufferException} and overriding the view-buffer methods to return an
* instance of this class rather than of the superclass.
#end[rw]
*/
class Heap$Type$Buffer$RW$
extends {#if[ro]?Heap}$Type$Buffer
{
// For speed these fields are actually declared in X-Buffer;
// these declarations are here as documentation
/*
#if[rw]
protected final $type$[] hb;
protected final int offset;
#end[rw]
*/
Heap$Type$Buffer$RW$(int cap, int lim) { // package-private
#if[rw]
super(-1, 0, lim, cap, new $type$[cap], 0);
/*
hb = new $type$[cap];
offset = 0;
*/
#else[rw]
super(cap, lim);
this.isReadOnly = true;
#end[rw]
}
Heap$Type$Buffer$RW$($type$[] buf, int off, int len) { // package-private
#if[rw]
super(-1, off, off + len, buf.length, buf, 0);
/*
hb = buf;
offset = 0;
*/
#else[rw]
super(buf, off, len);
this.isReadOnly = true;
#end[rw]
}
protected Heap$Type$Buffer$RW$($type$[] buf,
int mark, int pos, int lim, int cap,
int off)
{
#if[rw]
super(mark, pos, lim, cap, buf, off);
/*
hb = buf;
offset = off;
*/
#else[rw]
super(buf, mark, pos, lim, cap, off);
this.isReadOnly = true;
#end[rw]
}
public $Type$Buffer slice() {
return new Heap$Type$Buffer$RW$(hb,
-1,
0,
this.remaining(),
this.remaining(),
this.position() + offset);
}
public $Type$Buffer duplicate() {
return new Heap$Type$Buffer$RW$(hb,
this.markValue(),
this.position(),
this.limit(),
this.capacity(),
offset);
}
public $Type$Buffer asReadOnlyBuffer() {
#if[rw]
return new Heap$Type$BufferR(hb,
this.markValue(),
this.position(),
this.limit(),
this.capacity(),
offset);
#else[rw]
return duplicate();
#end[rw]
}
#if[rw]
protected int ix(int i) {
return i + offset;
}
public $type$ get() {
return hb[ix(nextGetIndex())];
}
public $type$ get(int i) {
return hb[ix(checkIndex(i))];
}
#if[streamableType]
$type$ getUnchecked(int i) {
return hb[ix(i)];
}
#end[streamableType]
public $Type$Buffer get($type$[] dst, int offset, int length) {
checkBounds(offset, length, dst.length);
if (length > remaining())
throw new BufferUnderflowException();
System.arraycopy(hb, ix(position()), dst, offset, length);
position(position() + length);
return this;
}
public boolean isDirect() {
return false;
}
#end[rw]
public boolean isReadOnly() {
return {#if[rw]?false:true};
}
public $Type$Buffer put($type$ x) {
#if[rw]
hb[ix(nextPutIndex())] = x;
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public $Type$Buffer put(int i, $type$ x) {
#if[rw]
hb[ix(checkIndex(i))] = x;
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public $Type$Buffer put($type$[] src, int offset, int length) {
#if[rw]
checkBounds(offset, length, src.length);
if (length > remaining())
throw new BufferOverflowException();
System.arraycopy(src, offset, hb, ix(position()), length);
position(position() + length);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public $Type$Buffer put($Type$Buffer src) {
#if[rw]
if (src instanceof Heap$Type$Buffer) {
if (src == this)
throw new IllegalArgumentException();
Heap$Type$Buffer sb = (Heap$Type$Buffer)src;
int n = sb.remaining();
if (n > remaining())
throw new BufferOverflowException();
System.arraycopy(sb.hb, sb.ix(sb.position()),
hb, ix(position()), n);
sb.position(sb.position() + n);
position(position() + n);
} else if (src.isDirect()) {
int n = src.remaining();
if (n > remaining())
throw new BufferOverflowException();
src.get(hb, ix(position()), n);
position(position() + n);
} else {
super.put(src);
}
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public $Type$Buffer compact() {
#if[rw]
System.arraycopy(hb, ix(position()), hb, ix(0), remaining());
position(remaining());
limit(capacity());
discardMark();
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
#if[byte]
byte _get(int i) { // package-private
return hb[i];
}
void _put(int i, byte b) { // package-private
#if[rw]
hb[i] = b;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
// char
#if[rw]
public char getChar() {
return Bits.getChar(this, ix(nextGetIndex(2)), bigEndian);
}
public char getChar(int i) {
return Bits.getChar(this, ix(checkIndex(i, 2)), bigEndian);
}
#end[rw]
public $Type$Buffer putChar(char x) {
#if[rw]
Bits.putChar(this, ix(nextPutIndex(2)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public $Type$Buffer putChar(int i, char x) {
#if[rw]
Bits.putChar(this, ix(checkIndex(i, 2)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public CharBuffer asCharBuffer() {
int size = this.remaining() >> 1;
int off = offset + position();
return (bigEndian
? (CharBuffer)(new ByteBufferAsCharBuffer$RW$B(this,
-1,
0,
size,
size,
off))
: (CharBuffer)(new ByteBufferAsCharBuffer$RW$L(this,
-1,
0,
size,
size,
off)));
}
// short
#if[rw]
public short getShort() {
return Bits.getShort(this, ix(nextGetIndex(2)), bigEndian);
}
public short getShort(int i) {
return Bits.getShort(this, ix(checkIndex(i, 2)), bigEndian);
}
#end[rw]
public $Type$Buffer putShort(short x) {
#if[rw]
Bits.putShort(this, ix(nextPutIndex(2)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public $Type$Buffer putShort(int i, short x) {
#if[rw]
Bits.putShort(this, ix(checkIndex(i, 2)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public ShortBuffer asShortBuffer() {
int size = this.remaining() >> 1;
int off = offset + position();
return (bigEndian
? (ShortBuffer)(new ByteBufferAsShortBuffer$RW$B(this,
-1,
0,
size,
size,
off))
: (ShortBuffer)(new ByteBufferAsShortBuffer$RW$L(this,
-1,
0,
size,
size,
off)));
}
// int
#if[rw]
public int getInt() {
return Bits.getInt(this, ix(nextGetIndex(4)), bigEndian);
}
public int getInt(int i) {
return Bits.getInt(this, ix(checkIndex(i, 4)), bigEndian);
}
#end[rw]
public $Type$Buffer putInt(int x) {
#if[rw]
Bits.putInt(this, ix(nextPutIndex(4)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public $Type$Buffer putInt(int i, int x) {
#if[rw]
Bits.putInt(this, ix(checkIndex(i, 4)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public IntBuffer asIntBuffer() {
int size = this.remaining() >> 2;
int off = offset + position();
return (bigEndian
? (IntBuffer)(new ByteBufferAsIntBuffer$RW$B(this,
-1,
0,
size,
size,
off))
: (IntBuffer)(new ByteBufferAsIntBuffer$RW$L(this,
-1,
0,
size,
size,
off)));
}
// long
#if[rw]
public long getLong() {
return Bits.getLong(this, ix(nextGetIndex(8)), bigEndian);
}
public long getLong(int i) {
return Bits.getLong(this, ix(checkIndex(i, 8)), bigEndian);
}
#end[rw]
public $Type$Buffer putLong(long x) {
#if[rw]
Bits.putLong(this, ix(nextPutIndex(8)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public $Type$Buffer putLong(int i, long x) {
#if[rw]
Bits.putLong(this, ix(checkIndex(i, 8)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public LongBuffer asLongBuffer() {
int size = this.remaining() >> 3;
int off = offset + position();
return (bigEndian
? (LongBuffer)(new ByteBufferAsLongBuffer$RW$B(this,
-1,
0,
size,
size,
off))
: (LongBuffer)(new ByteBufferAsLongBuffer$RW$L(this,
-1,
0,
size,
size,
off)));
}
// float
#if[rw]
public float getFloat() {
return Bits.getFloat(this, ix(nextGetIndex(4)), bigEndian);
}
public float getFloat(int i) {
return Bits.getFloat(this, ix(checkIndex(i, 4)), bigEndian);
}
#end[rw]
public $Type$Buffer putFloat(float x) {
#if[rw]
Bits.putFloat(this, ix(nextPutIndex(4)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public $Type$Buffer putFloat(int i, float x) {
#if[rw]
Bits.putFloat(this, ix(checkIndex(i, 4)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public FloatBuffer asFloatBuffer() {
int size = this.remaining() >> 2;
int off = offset + position();
return (bigEndian
? (FloatBuffer)(new ByteBufferAsFloatBuffer$RW$B(this,
-1,
0,
size,
size,
off))
: (FloatBuffer)(new ByteBufferAsFloatBuffer$RW$L(this,
-1,
0,
size,
size,
off)));
}
// double
#if[rw]
public double getDouble() {
return Bits.getDouble(this, ix(nextGetIndex(8)), bigEndian);
}
public double getDouble(int i) {
return Bits.getDouble(this, ix(checkIndex(i, 8)), bigEndian);
}
#end[rw]
public $Type$Buffer putDouble(double x) {
#if[rw]
Bits.putDouble(this, ix(nextPutIndex(8)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public $Type$Buffer putDouble(int i, double x) {
#if[rw]
Bits.putDouble(this, ix(checkIndex(i, 8)), x, bigEndian);
return this;
#else[rw]
throw new ReadOnlyBufferException();
#end[rw]
}
public DoubleBuffer asDoubleBuffer() {
int size = this.remaining() >> 3;
int off = offset + position();
return (bigEndian
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