Moved source code under src folder - massive change

src/Marr.Data/Reflection/SimpleReflectionStrategy.cs

@@ -0,0 +1,145 @@
+using System;
+using System.Collections.Generic;
+using System.Linq.Expressions;
+using System.Reflection;
+
+namespace Marr.Data.Reflection
+{
+    public class SimpleReflectionStrategy : IReflectionStrategy
+    {
+
+        private static readonly Dictionary<string, MemberInfo> MemberCache = new Dictionary<string, MemberInfo>();
+        private static readonly Dictionary<string, GetterDelegate> GetterCache = new Dictionary<string, GetterDelegate>();
+        private static readonly Dictionary<string, SetterDelegate> SetterCache = new Dictionary<string, SetterDelegate>();
+
+
+        private static MemberInfo GetMember(Type entityType, string name)
+        {
+            MemberInfo member;
+            var key = entityType.FullName + name;
+            if (!MemberCache.TryGetValue(key, out member))
+            {
+                member = entityType.GetMember(name, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)[0];
+                MemberCache[key] = member;
+            }
+
+            return member;
+        }
+
+        /// <summary>
+        /// Gets an entity field value by name.
+        /// </summary>
+        public object GetFieldValue(object entity, string fieldName)
+        {
+            var member = GetMember(entity.GetType(), fieldName);
+
+            if (member.MemberType == MemberTypes.Field)
+            {
+                return (member as FieldInfo).GetValue(entity);
+            }
+            if (member.MemberType == MemberTypes.Property)
+            {
+                return BuildGetter(entity.GetType(), fieldName)(entity);
+            }
+            throw new DataMappingException(string.Format("The DataMapper could not get the value for {0}.{1}.", entity.GetType().Name, fieldName));
+        }
+
+
+        /// <summary>
+        /// Instantiates a type using the FastReflector library for increased speed.
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        public object CreateInstance(Type type)
+        {
+            return Activator.CreateInstance(type);
+        }
+
+
+
+
+        public GetterDelegate BuildGetter(Type type, string memberName)
+        {
+            GetterDelegate getter;
+            var key = type.FullName + memberName;
+            if (!GetterCache.TryGetValue(key, out getter))
+            {
+                getter = GetPropertyGetter((PropertyInfo)GetMember(type, memberName));
+            }
+
+            return getter;
+        }
+
+        public SetterDelegate BuildSetter(Type type, string memberName)
+        {
+            SetterDelegate setter;
+            var key = type.FullName + memberName;
+            if (!SetterCache.TryGetValue(key, out setter))
+            {
+                setter = GetPropertySetter((PropertyInfo)GetMember(type, memberName));
+            }
+
+            return setter;
+        }
+
+
+        private static SetterDelegate GetPropertySetter(PropertyInfo propertyInfo)
+        {
+            var propertySetMethod = propertyInfo.GetSetMethod();
+            if (propertySetMethod == null) return null;
+
+#if NO_EXPRESSIONS
+            return (o, convertedValue) =>
+            {
+                propertySetMethod.Invoke(o, new[] { convertedValue });
+                return;
+            };
+#else
+            var instance = Expression.Parameter(typeof(object), "i");
+            var argument = Expression.Parameter(typeof(object), "a");
+
+            var instanceParam = Expression.Convert(instance, propertyInfo.DeclaringType);
+            var valueParam = Expression.Convert(argument, propertyInfo.PropertyType);
+
+            var setterCall = Expression.Call(instanceParam, propertyInfo.GetSetMethod(), valueParam);
+
+            return Expression.Lambda<SetterDelegate>(setterCall, instance, argument).Compile();
+#endif
+        }
+
+        private static GetterDelegate GetPropertyGetter(PropertyInfo propertyInfo)
+        {
+
+            var getMethodInfo = propertyInfo.GetGetMethod();
+            if (getMethodInfo == null) return null;
+
+#if NO_EXPRESSIONS
+			return o => propertyInfo.GetGetMethod().Invoke(o, new object[] { });
+#else
+            try
+            {
+                var oInstanceParam = Expression.Parameter(typeof(object), "oInstanceParam");
+                var instanceParam = Expression.Convert(oInstanceParam, propertyInfo.DeclaringType);
+
+                var exprCallPropertyGetFn = Expression.Call(instanceParam, getMethodInfo);
+                var oExprCallPropertyGetFn = Expression.Convert(exprCallPropertyGetFn, typeof(object));
+
+                var propertyGetFn = Expression.Lambda<GetterDelegate>
+                    (
+                        oExprCallPropertyGetFn,
+                        oInstanceParam
+                    ).Compile();
+
+                return propertyGetFn;
+
+            }
+            catch (Exception ex)
+            {
+                Console.Write(ex.Message);
+                throw;
+            }
+#endif
+        }
+
+    }
+}