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5071718: (bf) Add ByteBuffer.slice(int offset, int length)

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Reviewed-by: alanb, bchristi, darcy, rriggs
This commit is contained in:
Brian Burkhalter 2019-02-28 12:05:59 -08:00
parent 8f84ae5684
commit fad1f059b0
17 changed files with 367 additions and 77 deletions
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20
src/java.base/share/classes/java/nio/Heap-X-Buffer.java.template
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@ -27,6 +27,8 @@
package java.nio;
import java.util.Objects;
/**
#if[rw]
* A read/write Heap$Type$Buffer.
@ -38,8 +40,6 @@ package java.nio;
#end[rw]
*/
import java.util.Objects;
class Heap$Type$Buffer$RW$
extends {#if[ro]?Heap}$Type$Buffer
{
@ -112,19 +112,17 @@ class Heap$Type$Buffer$RW$
this.position() + offset);
}
#if[byte]
$Type$Buffer slice(int pos, int lim) {
assert (pos >= 0);
assert (pos <= lim);
int rem = lim - pos;
@Override
public $Type$Buffer slice(int index, int length) {
Objects.checkIndex(index, limit() + 1);
Objects.checkIndex(length, limit() - index + 1);
return new Heap$Type$Buffer$RW$(hb,
-1,
0,
rem,
rem,
pos + offset);
length,
length,
index + offset);
}
#end[byte]
public $Type$Buffer duplicate() {
return new Heap$Type$Buffer$RW$(hb,