Changeset 5324 for trunk/sources/HeuristicLab.Persistence/3.3/Core/DataMemberAccessor.cs

Timestamp:

01/18/11 15:50:23 (13 years ago)

Author:

epitzer

Message:

Implement one-way serialization that allows either only loading or only saving of storable members by setting a new property called AllowOneWay on the [Storable] attribute (#1385)

File:

• trunk/sources/HeuristicLab.Persistence/3.3/Core/DataMemberAccessor.cs (modified) (6 diffs)

trunk/sources/HeuristicLab.Persistence/3.3/Core/DataMemberAccessor.cs

@@ -150 +150 @@
         return GenerateFieldGetter(fieldInfo);
       } else if (memberInfo.MemberType == MemberTypes.Property) {
-        PropertyInfo propertyInfo = (PropertyInfo)memberInfo;
-        if (!propertyInfo.CanRead || !propertyInfo.CanWrite) {
-          throw new PersistenceException(
-            "Storable properties must implement both a Get and a Set Accessor. ");
-        }
-        return GeneratePropertyGetter(propertyInfo);
+        return GeneratePropertyGetter((PropertyInfo)memberInfo);
       } else {
         throw new PersistenceException(
@@ -172 +167 @@
         return GenerateFieldSetter(fieldInfo);
       } else if (memberInfo.MemberType == MemberTypes.Property) {
-        PropertyInfo propertyInfo = (PropertyInfo)memberInfo;
-        if (!propertyInfo.CanRead || !propertyInfo.CanWrite) {
-          throw new PersistenceException(
-            "Storable properties must implement both a Get and a Set Accessor. ");
-        }
-        return GeneratePropertySetter(propertyInfo);
+        return GeneratePropertySetter((PropertyInfo)memberInfo);
       } else {
         throw new PersistenceException(
@@ -201 +191 @@
 
     /// <summary>
-    /// Generates a dynamically compiled sett to access fields (even private ones).
+    /// Generates a dynamically compiled setter to access fields (even private ones).
     /// </summary>
     /// <param name="fieldInfo">The field info.</param>
@@ -223 +213 @@
     /// <returns>A Func&lt;object, object&gt;</returns>
     public static Func<object, object> GeneratePropertyGetter(PropertyInfo propertyInfo) {
+      MethodInfo getter = propertyInfo.GetGetMethod(true);
+      if (getter == null)
+        return null;
       DynamicMethod dm = new DynamicMethod("", typeof(object), new Type[] { typeof(object) }, propertyInfo.DeclaringType, true);
       ILGenerator ilgen = dm.GetILGenerator();
       ilgen.Emit(OpCodes.Ldarg_0);
       ilgen.Emit(OpCodes.Castclass, propertyInfo.DeclaringType);
-      ilgen.Emit(OpCodes.Callvirt, propertyInfo.GetGetMethod(true));
+      ilgen.Emit(OpCodes.Callvirt, getter);
       ilgen.Emit(OpCodes.Box, propertyInfo.PropertyType);
       ilgen.Emit(OpCodes.Ret);
@@ -239 +232 @@
     /// <returns>An Action&lt;object, object%gt;</returns>
     public static Action<object, object> GeneratePropertySetter(PropertyInfo propertyInfo) {
+      MethodInfo setter = propertyInfo.GetSetMethod(true);
+      if (setter == null)
+        return null;
       DynamicMethod dm = new DynamicMethod("", null, new Type[] { typeof(object), typeof(object) }, propertyInfo.DeclaringType, true);
       ILGenerator ilgen = dm.GetILGenerator();
@@ -245 +241 @@
       ilgen.Emit(OpCodes.Ldarg_1);
       ilgen.Emit(OpCodes.Unbox_Any, propertyInfo.PropertyType);
-      ilgen.Emit(OpCodes.Callvirt, propertyInfo.GetSetMethod(true));
+      ilgen.Emit(OpCodes.Callvirt, setter);
       ilgen.Emit(OpCodes.Ret);
       return (Action<object, object>)dm.CreateDelegate(typeof(Action<object, object>));