public static IMemberAccessor GetNamedAccessor(Type type, string name)
{
IMemberAccessor result = null;
return(_namedAccessors.GetOrAdd($"{type.Name}-{name}", key =>
{
var propertyInfo = type.GetTypeInfo().GetProperty(name, BindingFlags.Public | BindingFlags.Instance);
if (propertyInfo != null)
{
result = new MethodInfoAccessor(propertyInfo.GetGetMethod());
}
if (result == null)
{
var fieldInfo = type.GetTypeInfo().GetField(name, BindingFlags.Public | BindingFlags.Instance);
if (fieldInfo != null)
{
result = new DelegateAccessor((o, n) => fieldInfo.GetValue(o));
}
}
return result;
}));
}
public static IMemberAccessor GetNamedAccessor(Type type, string name)
{
var key = String.Concat("(", type.FullName, ")", name);
if (!_namedAccessors.TryGetValue(key, out var result))
{
var propertyInfo = type.GetTypeInfo().GetProperty(name, BindingFlags.Public | BindingFlags.Instance);
if (propertyInfo != null)
{
result = new MethodInfoAccessor(propertyInfo.GetGetMethod());
}
if (result == null)
{
var fieldInfo = type.GetTypeInfo().GetField(name, BindingFlags.Public | BindingFlags.Instance);
if (fieldInfo != null)
{
result = new DelegateAccessor((o, n) => fieldInfo.GetValue(o));
}
}
}
return(result);
}
private static List <string> GetAllMembers(Type type)
{
if (!_typeMembers.TryGetValue(type, out var list))
{
list = new List <string>();
foreach (var propertyInfo in type.GetTypeInfo().GetProperties(BindingFlags.Public | BindingFlags.Instance))
{
list.Add(propertyInfo.Name);
var key = String.Concat("(", type.FullName, ")", propertyInfo.Name);
_namedAccessors[key] = new MethodInfoAccessor(propertyInfo.GetGetMethod());
}
foreach (var fieldInfo in type.GetTypeInfo().GetFields(BindingFlags.Public | BindingFlags.Instance))
{
list.Add(fieldInfo.Name);
var key = String.Concat("(", type.FullName, ")", fieldInfo.Name);
_namedAccessors[key] = new DelegateAccessor((o, n) => fieldInfo.GetValue(o));
}
_typeMembers[type] = list;
}
return(list);
}
internal static Dictionary <string, IMemberAccessor> GetTypeMembers(Type type, MemberNameStrategy memberNameStrategy)
{
return(_typeMembers.GetOrAdd(type, t =>
{
var list = new Dictionary <string, IMemberAccessor>();
foreach (var propertyInfo in t.GetTypeInfo().GetProperties(BindingFlags.Public | BindingFlags.Instance))
{
if (propertyInfo.GetIndexParameters().Length > 0)
{
// Indexed property...
continue;
}
list[memberNameStrategy(propertyInfo)] = new PropertyInfoAccessor(propertyInfo);
}
foreach (var fieldInfo in t.GetTypeInfo().GetFields(BindingFlags.Public | BindingFlags.Instance))
{
list[memberNameStrategy(fieldInfo)] = new DelegateAccessor((o, n) => fieldInfo.GetValue(o));
}
return list;
}));
}
internal static Dictionary <string, IMemberAccessor> GetTypeMembers(Type type, MemberNameStrategy memberNameStrategy)
{
return(_typeMembers.GetOrAdd(type, t =>
{
var list = new Dictionary <string, IMemberAccessor>();
foreach (var propertyInfo in t.GetTypeInfo().GetProperties(BindingFlags.Public | BindingFlags.Instance))
{
if (propertyInfo.GetIndexParameters().Length > 0)
{
// Indexed property...
continue;
}
if (propertyInfo.PropertyType.IsGenericType && propertyInfo.PropertyType.GetGenericTypeDefinition() == typeof(Task <>))
{
list[memberNameStrategy(propertyInfo)] = new AsyncDelegateAccessor(async(o, n) =>
{
var asyncValue = (Task)propertyInfo.GetValue(o);
await asyncValue.ConfigureAwait(false);
return (object)((dynamic)asyncValue).Result;
});
}
else
{
list[memberNameStrategy(propertyInfo)] = new PropertyInfoAccessor(propertyInfo);
}
}
foreach (var fieldInfo in t.GetTypeInfo().GetFields(BindingFlags.Public | BindingFlags.Instance))
{
if (fieldInfo.FieldType.IsGenericType && fieldInfo.FieldType.GetGenericTypeDefinition() == typeof(Task <>))
{
list[memberNameStrategy(fieldInfo)] = new AsyncDelegateAccessor(async(o, n) =>
{
var asyncValue = (Task)fieldInfo.GetValue(o);
await asyncValue.ConfigureAwait(false);
return (object)((dynamic)asyncValue).Result;
});
}
else
{
list[memberNameStrategy(fieldInfo)] = new DelegateAccessor((o, n) => fieldInfo.GetValue(o));
}
}
return list;
}));
}
static TypeAccessor CreateNew(Type type)
{
#if !NO_DYNAMIC
if (typeof(IDynamicMetaObjectProvider).IsAssignableFrom(type))
{
return DynamicAccessor.Singleton;
}
#endif
PropertyInfo[] props = type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
FieldInfo[] fields = type.GetFields(BindingFlags.Public | BindingFlags.Instance);
ConstructorInfo ctor = null;
if (type.IsClass && !type.IsAbstract)
{
ctor = type.GetConstructor(Type.EmptyTypes);
}
ILGenerator il;
if (!IsFullyPublic(type))
{
DynamicMethod dynGetter = new DynamicMethod(type.FullName + "_get", typeof(object), new Type[] { typeof(object), typeof(string) }, type, true),
dynSetter = new DynamicMethod(type.FullName + "_set", null, new Type[] { typeof(object), typeof(string), typeof(object) }, type, true);
WriteGetter(dynGetter.GetILGenerator(), type, props, fields, true);
WriteSetter(dynSetter.GetILGenerator(), type, props, fields, true);
DynamicMethod dynCtor = null;
if (ctor != null)
{
dynCtor = new DynamicMethod(type.FullName + "_ctor", typeof(object), Type.EmptyTypes, type, true);
il = dynCtor.GetILGenerator();
il.Emit(OpCodes.Newobj, ctor);
il.Emit(OpCodes.Ret);
}
var delegateAccessor = new DelegateAccessor(
(Func<object, string, object>)dynGetter.CreateDelegate(typeof(Func<object, string, object>)),
(Action<object, string, object>)dynSetter.CreateDelegate(typeof(Action<object, string, object>)),
dynCtor == null ? null : (Func<object>)dynCtor.CreateDelegate(typeof(Func<object>)));
delegateAccessor.PropertyInfos = props;
delegateAccessor.FieldInfos = fields;
return delegateAccessor;
}
// note this region is synchronized; only one is being created at a time so we don't need to stress about the builders
if (assembly == null)
{
AssemblyName name = new AssemblyName("FastMember_dynamic");
assembly = AppDomain.CurrentDomain.DefineDynamicAssembly(name, AssemblyBuilderAccess.Run);
module = assembly.DefineDynamicModule(name.Name);
}
TypeBuilder tb = module.DefineType("FastMember_dynamic." + type.Name + "_" + Interlocked.Increment(ref counter),
(typeof(TypeAccessor).Attributes | TypeAttributes.Sealed) & ~TypeAttributes.Abstract, typeof(TypeAccessor));
tb.DefineDefaultConstructor(MethodAttributes.Public);
PropertyInfo indexer = typeof(TypeAccessor).GetProperty("Item");
MethodInfo baseGetter = indexer.GetGetMethod(), baseSetter = indexer.GetSetMethod();
MethodBuilder body = tb.DefineMethod(baseGetter.Name, baseGetter.Attributes & ~MethodAttributes.Abstract, typeof(object), new Type[] { typeof(object), typeof(string) });
il = body.GetILGenerator();
WriteGetter(il, type, props, fields, false);
tb.DefineMethodOverride(body, baseGetter);
body = tb.DefineMethod(baseSetter.Name, baseSetter.Attributes & ~MethodAttributes.Abstract, null, new Type[] { typeof(object), typeof(string), typeof(object) });
il = body.GetILGenerator();
WriteSetter(il, type, props, fields, false);
tb.DefineMethodOverride(body, baseSetter);
if (ctor != null)
{
MethodInfo baseMethod = typeof(TypeAccessor).GetProperty("CreateNewSupported").GetGetMethod();
body = tb.DefineMethod(baseMethod.Name, baseMethod.Attributes, typeof(bool), Type.EmptyTypes);
il = body.GetILGenerator();
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Ret);
tb.DefineMethodOverride(body, baseMethod);
baseMethod = typeof(TypeAccessor).GetMethod("CreateNew");
body = tb.DefineMethod(baseMethod.Name, baseMethod.Attributes, typeof(object), Type.EmptyTypes);
il = body.GetILGenerator();
il.Emit(OpCodes.Newobj, ctor);
il.Emit(OpCodes.Ret);
tb.DefineMethodOverride(body, baseMethod);
}
var typeAccessor = (TypeAccessor)Activator.CreateInstance(tb.CreateType());
typeAccessor.PropertyInfos = props;
typeAccessor.FieldInfos = fields;
return typeAccessor;
}
static TypeAccessor CreateNew(Type type, bool allowNonPublicAccessors)
{
if (typeof(IDynamicMetaObjectProvider).IsAssignableFrom(type))
{
return(DynamicAccessor.Singleton);
}
BindingFlags flags = BindingFlags.Public | BindingFlags.Instance;
if (allowNonPublicAccessors)
{
flags |= BindingFlags.NonPublic;
}
PropertyInfo[] props = type.GetTypeAndInterfaceProperties(flags);
FieldInfo[] fields = type.GetFields(flags);
Dictionary <string, int> map = new Dictionary <string, int>();
List <MemberInfo> members = new List <MemberInfo>(props.Length + fields.Length);
List <Member> mems = new List <Member>();
int i = 0;
foreach (var prop in props)
{
if (!map.ContainsKey(prop.Name) && prop.GetIndexParameters().Length == 0)
{
map.Add(prop.Name, i++);
members.Add(prop);
}
}
foreach (var field in fields)
{
if (!map.ContainsKey(field.Name))
{
map.Add(field.Name, i++); members.Add(field);
}
}
foreach (MemberInfo mem in members)
{
mems.Add(new Member(mem));
}
ConstructorInfo ctor = null;
if (type.IsClass && !type.IsAbstract)
{
ctor = type.GetConstructor(Type.EmptyTypes);
}
ILGenerator il;
if (!IsFullyPublic(type, props, fields, allowNonPublicAccessors))
{
DynamicMethod dynGetter = new DynamicMethod(type.FullName + "_get", typeof(object), new Type[] { typeof(int), typeof(object) }, type, true),
dynSetter = new DynamicMethod(type.FullName + "_set", null, new Type[] { typeof(int), typeof(object), typeof(object) }, type, true);
WriteMapImpl(dynGetter.GetILGenerator(), type, members, null, allowNonPublicAccessors, true);
WriteMapImpl(dynSetter.GetILGenerator(), type, members, null, allowNonPublicAccessors, false);
DynamicMethod dynCtor = null;
if (ctor != null)
{
dynCtor = new DynamicMethod(type.FullName + "_ctor", typeof(object), Type.EmptyTypes, type, true);
il = dynCtor.GetILGenerator();
il.Emit(OpCodes.Newobj, ctor);
il.Emit(OpCodes.Ret);
}
DelegateAccessor a = new DelegateAccessor(
map,
(Func <int, object, object>)dynGetter.CreateDelegate(typeof(Func <int, object, object>)),
(Action <int, object, object>)dynSetter.CreateDelegate(typeof(Action <int, object, object>)),
dynCtor == null ? null : (Func <object>)dynCtor.CreateDelegate(typeof(Func <object>)), type);
a.Members = mems;
return(a);
}
// note this region is synchronized; only one is being created at a time so we don't need to stress about the builders
if (assembly == null)
{
AssemblyName name = new AssemblyName("FastMember_dynamic");
assembly = AssemblyBuilder.DefineDynamicAssembly(name, AssemblyBuilderAccess.Run);
module = assembly.DefineDynamicModule(name.Name);
}
TypeAttributes attribs = typeof(TypeAccessor).Attributes;
TypeBuilder tb = module.DefineType("FastMember_dynamic." + type.Name + "_" + GetNextCounterValue(),
(attribs | TypeAttributes.Sealed | TypeAttributes.Public) & ~(TypeAttributes.Abstract | TypeAttributes.NotPublic), typeof(RuntimeTypeAccessor));
il = tb.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, new[] {
typeof(Dictionary <string, int>)
}).GetILGenerator();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldarg_1);
FieldBuilder mapField = tb.DefineField("_map", typeof(Dictionary <string, int>), FieldAttributes.InitOnly | FieldAttributes.Private);
il.Emit(OpCodes.Stfld, mapField);
il.Emit(OpCodes.Ret);
PropertyInfo indexer = typeof(TypeAccessor).GetProperty("Item");
MethodInfo baseGetter = indexer.GetGetMethod(), baseSetter = indexer.GetSetMethod();
MethodBuilder body = tb.DefineMethod(baseGetter.Name, baseGetter.Attributes & ~MethodAttributes.Abstract, typeof(object), new Type[] { typeof(object), typeof(string) });
il = body.GetILGenerator();
WriteMapImpl(il, type, members, mapField, allowNonPublicAccessors, true);
tb.DefineMethodOverride(body, baseGetter);
body = tb.DefineMethod(baseSetter.Name, baseSetter.Attributes & ~MethodAttributes.Abstract, null, new Type[] { typeof(object), typeof(string), typeof(object) });
il = body.GetILGenerator();
WriteMapImpl(il, type, members, mapField, allowNonPublicAccessors, false);
tb.DefineMethodOverride(body, baseSetter);
MethodInfo baseMethod;
if (ctor != null)
{
baseMethod = typeof(TypeAccessor).GetProperty("CreateNewSupported").GetGetMethod();
body = tb.DefineMethod(baseMethod.Name, baseMethod.Attributes, baseMethod.ReturnType, Type.EmptyTypes);
il = body.GetILGenerator();
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Ret);
tb.DefineMethodOverride(body, baseMethod);
baseMethod = typeof(TypeAccessor).GetMethod("CreateNew");
body = tb.DefineMethod(baseMethod.Name, baseMethod.Attributes, baseMethod.ReturnType, Type.EmptyTypes);
il = body.GetILGenerator();
il.Emit(OpCodes.Newobj, ctor);
il.Emit(OpCodes.Ret);
tb.DefineMethodOverride(body, baseMethod);
}
baseMethod = typeof(RuntimeTypeAccessor).GetProperty("Type", BindingFlags.NonPublic | BindingFlags.Instance).GetGetMethod(true);
body = tb.DefineMethod(baseMethod.Name, baseMethod.Attributes & ~MethodAttributes.Abstract, baseMethod.ReturnType, Type.EmptyTypes);
il = body.GetILGenerator();
il.Emit(OpCodes.Ldtoken, type);
il.Emit(OpCodes.Call, typeof(Type).GetMethod("GetTypeFromHandle"));
il.Emit(OpCodes.Ret);
tb.DefineMethodOverride(body, baseMethod);
var accessor = (TypeAccessor)Activator.CreateInstance(tb.CreateTypeInfo().AsType(), map);
accessor.Members = mems;
return(accessor);
}
static TypeAccessor CreateNew(Type type)
{
#if !NO_DYNAMIC
if (typeof(IDynamicMetaObjectProvider).IsAssignableFrom(type))
{
return(DynamicAccessor.Singleton);
}
#endif
PropertyInfo[] props = type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
FieldInfo[] fields = type.GetFields(BindingFlags.Public | BindingFlags.Instance);
ConstructorInfo ctor = null;
if (type.IsClass && !type.IsAbstract)
{
ctor = type.GetConstructor(Type.EmptyTypes);
}
ILGenerator il;
if (!IsFullyPublic(type))
{
DynamicMethod dynGetter = new DynamicMethod(type.FullName + "_get", typeof(object), new Type[] { typeof(object), typeof(string) }, type, true),
dynSetter = new DynamicMethod(type.FullName + "_set", null, new Type[] { typeof(object), typeof(string), typeof(object) }, type, true);
WriteGetter(dynGetter.GetILGenerator(), type, props, fields, true);
WriteSetter(dynSetter.GetILGenerator(), type, props, fields, true);
DynamicMethod dynCtor = null;
if (ctor != null)
{
dynCtor = new DynamicMethod(type.FullName + "_ctor", typeof(object), Type.EmptyTypes, type, true);
il = dynCtor.GetILGenerator();
il.Emit(OpCodes.Newobj, ctor);
il.Emit(OpCodes.Ret);
}
var delegateAccessor = new DelegateAccessor(
(Func <object, string, object>)dynGetter.CreateDelegate(typeof(Func <object, string, object>)),
(Action <object, string, object>)dynSetter.CreateDelegate(typeof(Action <object, string, object>)),
dynCtor == null ? null : (Func <object>)dynCtor.CreateDelegate(typeof(Func <object>)));
delegateAccessor.PropertyInfos = props;
delegateAccessor.FieldInfos = fields;
return(delegateAccessor);
}
// note this region is synchronized; only one is being created at a time so we don't need to stress about the builders
if (assembly == null)
{
AssemblyName name = new AssemblyName("FastMember_dynamic");
assembly = AppDomain.CurrentDomain.DefineDynamicAssembly(name, AssemblyBuilderAccess.Run);
module = assembly.DefineDynamicModule(name.Name);
}
TypeBuilder tb = module.DefineType("FastMember_dynamic." + type.Name + "_" + Interlocked.Increment(ref counter),
(typeof(TypeAccessor).Attributes | TypeAttributes.Sealed) & ~TypeAttributes.Abstract, typeof(TypeAccessor));
tb.DefineDefaultConstructor(MethodAttributes.Public);
PropertyInfo indexer = typeof(TypeAccessor).GetProperty("Item");
MethodInfo baseGetter = indexer.GetGetMethod(), baseSetter = indexer.GetSetMethod();
MethodBuilder body = tb.DefineMethod(baseGetter.Name, baseGetter.Attributes & ~MethodAttributes.Abstract, typeof(object), new Type[] { typeof(object), typeof(string) });
il = body.GetILGenerator();
WriteGetter(il, type, props, fields, false);
tb.DefineMethodOverride(body, baseGetter);
body = tb.DefineMethod(baseSetter.Name, baseSetter.Attributes & ~MethodAttributes.Abstract, null, new Type[] { typeof(object), typeof(string), typeof(object) });
il = body.GetILGenerator();
WriteSetter(il, type, props, fields, false);
tb.DefineMethodOverride(body, baseSetter);
if (ctor != null)
{
MethodInfo baseMethod = typeof(TypeAccessor).GetProperty("CreateNewSupported").GetGetMethod();
body = tb.DefineMethod(baseMethod.Name, baseMethod.Attributes, typeof(bool), Type.EmptyTypes);
il = body.GetILGenerator();
il.Emit(OpCodes.Ldc_I4_1);
il.Emit(OpCodes.Ret);
tb.DefineMethodOverride(body, baseMethod);
baseMethod = typeof(TypeAccessor).GetMethod("CreateNew");
body = tb.DefineMethod(baseMethod.Name, baseMethod.Attributes, typeof(object), Type.EmptyTypes);
il = body.GetILGenerator();
il.Emit(OpCodes.Newobj, ctor);
il.Emit(OpCodes.Ret);
tb.DefineMethodOverride(body, baseMethod);
}
var typeAccessor = (TypeAccessor)Activator.CreateInstance(tb.CreateType());
typeAccessor.PropertyInfos = props;
typeAccessor.FieldInfos = fields;
return(typeAccessor);
}
