Mercurial Hosting > luan
changeset 78:7c08b611125d
better deep cloning
git-svn-id: https://luan-java.googlecode.com/svn/trunk@79 21e917c8-12df-6dd8-5cb6-c86387c605b9
| author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
|---|---|
| date | Fri, 15 Feb 2013 22:29:16 +0000 |
| parents | 4bf3d0c0b6b9 |
| children | 805929c3c6e1 |
| files | src/luan/DeepCloner.java src/luan/interp/Closure.java src/luan/interp/GetUpVar.java src/luan/interp/SetUpVar.java src/luan/interp/UpValue.java |
| diffstat | 5 files changed, 24 insertions(+), 11 deletions(-) [+] |
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--- a/src/luan/DeepCloner.java Fri Feb 15 09:55:17 2013 +0000 +++ b/src/luan/DeepCloner.java Fri Feb 15 22:29:16 2013 +0000 @@ -18,10 +18,21 @@ return rtn; } - public void deepenClone(Object[] a) { - for( int i=0; i<a.length; i++ ) { - a[i] = get(a[i]); + public <T> T[] deepClone(T[] obj) { + if( obj.length == 0 ) + return obj; + @SuppressWarnings("unchecked") + T[] rtn = (T[])cloned.get(obj); + if( rtn == null ) { + rtn = obj.clone(); + cloned.put(obj,rtn); + for( int i=0; i<rtn.length; i++ ) { + @SuppressWarnings("unchecked") + T t = (T)get(rtn[i]); + rtn[i] = t; + } } + return rtn; } public Object get(Object obj) {
--- a/src/luan/interp/Closure.java Fri Feb 15 09:55:17 2013 +0000 +++ b/src/luan/interp/Closure.java Fri Feb 15 22:29:16 2013 +0000 @@ -10,7 +10,7 @@ final class Closure extends LuanFunction implements DeepCloneable<Closure> { private final Chunk chunk; - final UpValue[] upValues; + private UpValue[] upValues; private final static UpValue[] NO_UP_VALUES = new UpValue[0]; Closure(LuanStateImpl luan,Chunk chunk) { @@ -28,7 +28,6 @@ private Closure(Closure c) { this.chunk = c.chunk; - this.upValues = c.upValues==NO_UP_VALUES ? NO_UP_VALUES : c.upValues.clone(); } @Override public Closure shallowClone() { @@ -36,7 +35,11 @@ } @Override public void deepenClone(Closure clone,DeepCloner cloner) { - cloner.deepenClone(clone.upValues); + clone.upValues = cloner.deepClone(upValues); + } + + UpValue[] upValues() { + return upValues; } public Object[] call(LuanState luan,Object[] args) throws LuanException {
--- a/src/luan/interp/GetUpVar.java Fri Feb 15 09:55:17 2013 +0000 +++ b/src/luan/interp/GetUpVar.java Fri Feb 15 22:29:16 2013 +0000 @@ -12,6 +12,6 @@ } @Override public Object eval(LuanStateImpl luan) { - return luan.closure().upValues[index].get(); + return luan.closure().upValues()[index].get(); } }
--- a/src/luan/interp/SetUpVar.java Fri Feb 15 09:55:17 2013 +0000 +++ b/src/luan/interp/SetUpVar.java Fri Feb 15 22:29:16 2013 +0000 @@ -9,6 +9,6 @@ } @Override public void set(LuanStateImpl luan,Object value) { - luan.closure().upValues[index].set(value); + luan.closure().upValues()[index].set(value); } }
--- a/src/luan/interp/UpValue.java Fri Feb 15 09:55:17 2013 +0000 +++ b/src/luan/interp/UpValue.java Fri Feb 15 22:29:16 2013 +0000 @@ -31,8 +31,7 @@ if( isClosed ) { clone.value = cloner.get(value); } else { - clone.stack = stack.clone(); - cloner.deepenClone(clone.stack); + clone.stack = cloner.deepClone(stack); clone.index = index; } } @@ -79,7 +78,7 @@ } public UpValue get(LuanStateImpl luan) { - return luan.closure().upValues[index]; + return luan.closure().upValues()[index]; } }