From 43c0eda2be403d24c83049356a1333efb0620ab2 Mon Sep 17 00:00:00 2001
From: Christian Passlack <christian.passlack@pta.de>
Date: Fri, 20 Mar 2015 11:21:07 +0100
Subject: [PATCH] Fixed: Encoding a [CPDecimalNumber zero] causes a corrupt
 CPDecimalNumber after decoding

Previously, CPNumber and CPDecimalNumber shared the same method UID and CPNumberUIDs-Dictionary.
This leads to some unexpected errors for example a [CPDecimalNumber zero] which refers to itself after
decoding. CPDecimalNumber now overwrites the method UID and has its own UID-Dictionary.

Fixes #2332
---
 Foundation/CPDecimalNumber.j | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Foundation/CPDecimalNumber.j b/Foundation/CPDecimalNumber.j
index 7221cd2e5..39c221d53 100644
--- a/Foundation/CPDecimalNumber.j
+++ b/Foundation/CPDecimalNumber.j
@@ -28,6 +28,8 @@
 // The default global behavior class, created lazily
 var CPDefaultDcmHandler = nil;
 
+var CPDecimalNumberUIDs	= new CFMutableDictionary();
+
 /*!
     @class CPDecimalNumberHandler
     @ingroup foundation
@@ -531,6 +533,20 @@ var CPDecimalNumberHandlerRoundingModeKey       = @"CPDecimalNumberHandlerRoundi
 }
 
 // instance methods
+
+- (CPString)UID
+{
+    var UID = CPDecimalNumberUIDs.valueForKey(self);
+
+    if (!UID)
+    {
+        UID = objj_generateObjectUID();
+        CPDecimalNumberUIDs.setValueForKey(self, UID);
+    }
+
+    return UID + "";
+}
+
 /*!
     Returns a new CPDecimalNumber object with the result of the summation of
     the receiver object and \c decimalNumber. If overflow occurs then the