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comparison src/luan/impl/Pointer.java @ 1578:c922446f53aa

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immutable threading
author Franklin Schmidt <fschmidt@gmail.com>
date Mon, 08 Feb 2021 14:16:19 -0700
parents e1a13e707bf3
children
comparison
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1577:60e5c324adf9 1578:c922446f53aa
1 package luan.impl; 1 package luan.impl;
2 2
3 import luan.LuanCloneable; 3 import luan.LuanMutable;
4 import luan.LuanCloner;
5 import luan.LuanImmutabler;
6 import luan.LuanException; 4 import luan.LuanException;
7 5
8 6
9 public final class Pointer implements LuanCloneable { 7 public final class Pointer implements LuanMutable {
10 private Object o; 8 private Object o;
11 private boolean immutable = false; 9 private boolean immutable = false;
12 10
13 public Pointer() {} 11 public Pointer() {}
14 12
15 public Pointer(Object o) { 13 public Pointer(Object o) {
16 this.o = o; 14 this.o = o;
17 } 15 }
18 16
19 @Override public Pointer shallowClone() { 17 @Override public boolean isImmutable() {
20 return new Pointer(); 18 return immutable;
21 } 19 }
22 20
23 @Override public void deepenClone(LuanCloneable clone,LuanCloner cloner) { 21 @Override public void makeImmutable() {
24 ((Pointer)clone).o = cloner.get(o); 22 if(immutable)
25 } 23 return;
26
27 @Override public void makeImmutable(LuanImmutabler immutabler) throws LuanException {
28 immutabler.makeImmutable(o);
29 immutable = true; 24 immutable = true;
25 LuanMutable.makeImmutable(o);
30 } 26 }
31 27
32 public Object get() { 28 public Object get() {
33 return o; 29 return o;
34 } 30 }