From c5c9c6a7e05a44724bc4bc6192ff995b4398d559 Mon Sep 17 00:00:00 2001
From: Jie Luo <anandolee@gmail.com>
Date: Wed, 29 Apr 2015 11:33:07 -0700
Subject: field presence Reflection and tests

---
 .../src/ProtocolBuffers/FieldAccess/FieldAccessorTable.cs   | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

(limited to 'csharp/src/ProtocolBuffers/FieldAccess/FieldAccessorTable.cs')

diff --git a/csharp/src/ProtocolBuffers/FieldAccess/FieldAccessorTable.cs b/csharp/src/ProtocolBuffers/FieldAccess/FieldAccessorTable.cs
index 6ba039c1..60b032e2 100644
--- a/csharp/src/ProtocolBuffers/FieldAccess/FieldAccessorTable.cs
+++ b/csharp/src/ProtocolBuffers/FieldAccess/FieldAccessorTable.cs
@@ -68,16 +68,21 @@ namespace Google.ProtocolBuffers.FieldAccess
         {
             this.descriptor = descriptor;
             accessors = new IFieldAccessor<TMessage, TBuilder>[descriptor.Fields.Count];
+            bool supportFieldPresence = false;
+            if (descriptor.File.GetSyntax() == FileDescriptor.Syntax.PROTO2)
+            {
+                supportFieldPresence = true;
+            }
             for (int i = 0; i < accessors.Length; i++)
             {
-                accessors[i] = CreateAccessor(descriptor.Fields[i], propertyNames[i]);
+                accessors[i] = CreateAccessor(descriptor.Fields[i], propertyNames[i], supportFieldPresence);
             }
         }
 
         /// <summary>
         /// Creates an accessor for a single field
         /// </summary>   
-        private static IFieldAccessor<TMessage, TBuilder> CreateAccessor(FieldDescriptor field, string name)
+        private static IFieldAccessor<TMessage, TBuilder> CreateAccessor(FieldDescriptor field, string name, bool supportFieldPresence)
         {
             if (field.IsRepeated)
             {
@@ -98,9 +103,9 @@ namespace Google.ProtocolBuffers.FieldAccess
                     case MappedType.Message:
                         return new SingleMessageAccessor<TMessage, TBuilder>(name);
                     case MappedType.Enum:
-                        return new SingleEnumAccessor<TMessage, TBuilder>(field, name);
+                        return new SingleEnumAccessor<TMessage, TBuilder>(field, name, supportFieldPresence);
                     default:
-                        return new SinglePrimitiveAccessor<TMessage, TBuilder>(name);
+                        return new SinglePrimitiveAccessor<TMessage, TBuilder>(field, name, supportFieldPresence);
                 }
             }
         }
-- 
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