public static void DefineExplicitAutoProperty(this TypeBuilder typeBuilder, Type type, PropertyInfo property)
{
if (property.DeclaringType == null || !property.DeclaringType.IsInterface)
{
throw new ArgumentException(nameof(property));
}
MethodAttributes methodAttributes =
MethodAttributes.Private
| MethodAttributes.SpecialName
| MethodAttributes.HideBySig
| MethodAttributes.NewSlot
| MethodAttributes.Virtual
| MethodAttributes.Final;
//string prefix = property.DeclaringType.FullName + ".";
string prefix = property.DeclaringType.GetFullName() + ".";
string fieldName = "<" + prefix + property.Name + ">k__BackingField";
FieldBuilder fieldBuilder = typeBuilder.DefineField(fieldName, property.PropertyType, FieldAttributes.Private);
fieldBuilder.SetCustomAttribute(() => new CompilerGeneratedAttribute());
PropertyBuilder propertyBuilder = typeBuilder.DefineProperty(prefix + property.Name, PropertyAttributes.None, property.PropertyType, Type.EmptyTypes);
if (property.CanRead)
{
MethodBuilder propertyGet = typeBuilder.DefineMethod(prefix + "get_" + property.Name, methodAttributes, property.PropertyType, Type.EmptyTypes);
propertyGet.SetCustomAttribute(() => new CompilerGeneratedAttribute());
ILGenerator iLGenerator = propertyGet.GetILGenerator();
iLGenerator.Emit(OpCodes.Ldarg_0);
iLGenerator.Emit(OpCodes.Ldfld, fieldBuilder);
iLGenerator.Emit(OpCodes.Ret);
typeBuilder.DefineMethodOverride(propertyGet, property.GetMethod);
propertyBuilder.SetGetMethod(propertyGet);
}
if (property.CanWrite)
{
MethodBuilder propertySet = typeBuilder.DefineMethod(prefix + "set_" + property.Name, methodAttributes, typeof(void), new Type[] { property.PropertyType });
propertySet.SetCustomAttribute(() => new CompilerGeneratedAttribute());
propertySet.DefineParameter(1, ParameterAttributes.None, "value");
ILGenerator iLGenerator = propertySet.GetILGenerator();
iLGenerator.Emit(OpCodes.Ldarg_0);
iLGenerator.Emit(OpCodes.Ldarg_1);
iLGenerator.Emit(OpCodes.Stfld, fieldBuilder);
iLGenerator.Emit(OpCodes.Ret);
typeBuilder.DefineMethodOverride(propertySet, property.SetMethod);
propertyBuilder.SetSetMethod(propertySet);
}
propertyBuilder.CopyCustomAttributes(property);
}
public static void DefineAutoProperty(this TypeBuilder typeBuilder, Type type, PropertyInfo property)
{
MethodAttributes methodAttributes =
MethodAttributes.Public
| MethodAttributes.SpecialName
| MethodAttributes.HideBySig
| MethodAttributes.NewSlot
| MethodAttributes.Virtual
| MethodAttributes.Final;
string fieldName = "<" + property.Name + ">k__BackingField";
FieldBuilder fieldBuilder = typeBuilder.DefineField(fieldName, property.PropertyType, FieldAttributes.Private);
fieldBuilder.SetCustomAttribute(() => new CompilerGeneratedAttribute());
PropertyBuilder propertyBuilder = typeBuilder.DefineProperty(property.Name, PropertyAttributes.None, property.PropertyType, Type.EmptyTypes);
if (property.CanRead)
{
MethodBuilder propertyGet = typeBuilder.DefineMethod("get_" + property.Name, methodAttributes, property.PropertyType, Type.EmptyTypes);
propertyGet.SetCustomAttribute(() => new CompilerGeneratedAttribute());
ILGenerator iLGenerator = propertyGet.GetILGenerator();
iLGenerator.Emit(OpCodes.Ldarg_0);
iLGenerator.Emit(OpCodes.Ldfld, fieldBuilder);
iLGenerator.Emit(OpCodes.Ret);
propertyBuilder.SetGetMethod(propertyGet);
}
if (property.CanWrite)
{
MethodBuilder propertySet = typeBuilder.DefineMethod("set_" + property.Name, methodAttributes, typeof(void), new Type[] { property.PropertyType });
propertySet.SetCustomAttribute(() => new CompilerGeneratedAttribute());
propertySet.DefineParameter(1, ParameterAttributes.None, "value");
ILGenerator iLGenerator = propertySet.GetILGenerator();
iLGenerator.Emit(OpCodes.Ldarg_0);
iLGenerator.Emit(OpCodes.Ldarg_1);
iLGenerator.Emit(OpCodes.Stfld, fieldBuilder);
iLGenerator.Emit(OpCodes.Ret);
propertyBuilder.SetSetMethod(propertySet);
}
propertyBuilder.CopyCustomAttributes(property);
}