//设置私有字段
public static void SetPrivateField(this ILGenerator il, Action thisInStack, FieldInfo info, object value)
{
//加载SetValue的第一个参数 即FieldInfo
il.REmit(OpCodes.Ldtoken, info.DeclaringType);
il.REmit(OpCodes.Call, ClassCache.ClassHandle);
il.REmit(OpCodes.Ldstr, info.Name);
il.REmit(OpCodes.Ldc_I4_S, 44);
il.REmit(OpCodes.Callvirt, ClassCache.FieldInfoGetter);
//加载SetValue的第二个参数
if (thisInStack != null)
{
thisInStack();
}
il.Packet(info.DeclaringType);
//加载SetValue的第三个参数
il.NoErrorLoad(value, info.FieldType);
if (value != null)
{
if (il.IsNullable(info.FieldType))
{
il.Packet(info.FieldType);
}
else
{
il.Packet(value.GetType());
}
}
//调用SetValue
il.REmit(OpCodes.Callvirt, ClassCache.FieldValueSetter);
}
//各种数据给我就能入栈
public static void NoErrorLoad(this ILGenerator il, object value, Type type)
{
if (il.IsNullable(type))
{
if (value == null)
{
EModel model = EModel.CreateModel(type).UseDefaultConstructor();
model.Load();
}
else
{
Action action = value as Action;
if (action == null)
{
il.NoErrorLoad(value, type.GenericTypeArguments[0]);
ConstructorInfo ctor = type.GetConstructor(new Type[] { type.GenericTypeArguments[0] });
il.REmit(OpCodes.Newobj, ctor);
}
else
{
action();
ConstructorInfo ctor = type.GetConstructor(new Type[] { type.GenericTypeArguments[0] });
il.REmit(OpCodes.Newobj, ctor);
}
}
}
else
{
il.NoErrorLoad(value);
}
}
public static void CallNullableCtor(this ILGenerator il, Type type)
{
if (il.IsNullable(type))
{
ConstructorInfo ctor = type.GetConstructor(new Type[] { type.GenericTypeArguments[0] });
il.REmit(OpCodes.Newobj, ctor);
}
}