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The Qbicc builder for the java.base JDK module
/*
* Copyright (c) 2000, 2021, Oracle and/or its affiliates. All rights reserved.
* 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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*/
// -- This file was mechanically generated: Do not edit! -- //
package java.nio;
import java.util.Objects;
import jdk.internal.access.foreign.MemorySegmentProxy;
/**
* A read-only HeapCharBuffer. 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.
*/
class HeapCharBufferR
extends HeapCharBuffer
{
// Cached array base offset
private static final long ARRAY_BASE_OFFSET = UNSAFE.arrayBaseOffset(char[].class);
// Cached array index scale
private static final long ARRAY_INDEX_SCALE = UNSAFE.arrayIndexScale(char[].class);
// For speed these fields are actually declared in X-Buffer;
// these declarations are here as documentation
/*
*/
HeapCharBufferR(int cap, int lim, MemorySegmentProxy segment) { // package-private
super(cap, lim, segment);
this.isReadOnly = true;
}
HeapCharBufferR(char[] buf, int off, int len, MemorySegmentProxy segment) { // package-private
super(buf, off, len, segment);
this.isReadOnly = true;
}
protected HeapCharBufferR(char[] buf,
int mark, int pos, int lim, int cap,
int off, MemorySegmentProxy segment)
{
super(buf, mark, pos, lim, cap, off, segment);
this.isReadOnly = true;
}
public CharBuffer slice() {
int pos = this.position();
int lim = this.limit();
int rem = (pos <= lim ? lim - pos : 0);
return new HeapCharBufferR(hb,
-1,
0,
rem,
rem,
pos + offset, segment);
}
@Override
public CharBuffer slice(int index, int length) {
Objects.checkFromIndexSize(index, length, limit());
return new HeapCharBufferR(hb,
-1,
0,
length,
length,
index + offset, segment);
}
public CharBuffer duplicate() {
return new HeapCharBufferR(hb,
this.markValue(),
this.position(),
this.limit(),
this.capacity(),
offset, segment);
}
public CharBuffer asReadOnlyBuffer() {
return duplicate();
}
public boolean isReadOnly() {
return true;
}
public CharBuffer put(char x) {
throw new ReadOnlyBufferException();
}
public CharBuffer put(int i, char x) {
throw new ReadOnlyBufferException();
}
public CharBuffer put(char[] src, int offset, int length) {
throw new ReadOnlyBufferException();
}
public CharBuffer put(CharBuffer src) {
throw new ReadOnlyBufferException();
}
public CharBuffer put(int index, CharBuffer src, int offset, int length) {
throw new ReadOnlyBufferException();
}
public CharBuffer put(int index, char[] src, int offset, int length) {
throw new ReadOnlyBufferException();
}
public CharBuffer put(String src, int start, int end) {
throw new ReadOnlyBufferException();
}
public CharBuffer compact() {
throw new ReadOnlyBufferException();
}
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) {
int pos = position();
Objects.checkFromToIndex(start, end, limit() - pos);
return new HeapCharBufferR(hb,
-1,
pos + start,
pos + end,
capacity(),
offset, segment);
}
public ByteOrder order() {
return ByteOrder.nativeOrder();
}
ByteOrder charRegionOrder() {
return order();
}
}
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