Mercurial Hosting > luan
annotate src/luan/DeepCloner.java @ 83:b84f66704026
treat OutputStmt as statement separator
git-svn-id: https://luan-java.googlecode.com/svn/trunk@84 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Mon, 18 Feb 2013 22:07:40 +0000 |
parents | 7c08b611125d |
children | 0149bdf98fd8 |
rev | line source |
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77
4bf3d0c0b6b9
make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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1 package luan; |
4bf3d0c0b6b9
make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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2 |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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3 import java.util.Map; |
4bf3d0c0b6b9
make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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4 import java.util.IdentityHashMap; |
4bf3d0c0b6b9
make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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5 |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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6 |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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7 public final class DeepCloner { |
4bf3d0c0b6b9
make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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8 private final Map<Object,Object> cloned = new IdentityHashMap<Object,Object>(); |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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9 |
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parents:
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10 public <T extends DeepCloneable<T>> T deepClone(T obj) { |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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11 @SuppressWarnings("unchecked") |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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12 T rtn = (T)cloned.get(obj); |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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13 if( rtn == null ) { |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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14 rtn = obj.shallowClone(); |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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15 cloned.put(obj,rtn); |
4bf3d0c0b6b9
make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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16 obj.deepenClone(rtn,this); |
4bf3d0c0b6b9
make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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17 } |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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18 return rtn; |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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19 } |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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20 |
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7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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21 public <T> T[] deepClone(T[] obj) { |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
77
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22 if( obj.length == 0 ) |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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23 return obj; |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
77
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24 @SuppressWarnings("unchecked") |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
77
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25 T[] rtn = (T[])cloned.get(obj); |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
77
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26 if( rtn == null ) { |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
77
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27 rtn = obj.clone(); |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
77
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28 cloned.put(obj,rtn); |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
77
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29 for( int i=0; i<rtn.length; i++ ) { |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
77
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30 @SuppressWarnings("unchecked") |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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31 T t = (T)get(rtn[i]); |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
77
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32 rtn[i] = t; |
7c08b611125d
better deep cloning
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
77
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33 } |
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4bf3d0c0b6b9
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parents:
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34 } |
78
7c08b611125d
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parents:
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35 return rtn; |
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parents:
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36 } |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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37 |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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38 public Object get(Object obj) { |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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39 if( !(obj instanceof DeepCloneable) ) |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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40 return obj; |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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41 @SuppressWarnings("unchecked") |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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42 DeepCloneable dc = deepClone((DeepCloneable)obj); |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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43 return dc; |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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44 } |
4bf3d0c0b6b9
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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45 } |