//private static void DeclareInstance(MethodGenerator g, TypeSerializationInfo typeInfo)
//{
// if (typeInfo.ClassType.IsValueType)
// {
// var instance = g.Declare(typeInfo.ClassType, SerializationArgs.InstanceName);
// //g.LoadVariable(instance, LoadOptions.ValueAsAddress);
// //g.InitValue();
// }
// else
// {
// var instance = g.Declare(typeInfo.ClassType, SerializationArgs.InstanceName);
// g.Assign(instance, () =>
// {
// g.NewObject(typeInfo.ClassType);
// });
// }
//}
private static void ReadMembers(MethodGenerator g, TypeSerializationInfo typeInfo)
{
if (typeInfo.ClassAttribute.Mode == DTOSerializableMode.General)
{
foreach (var member in typeInfo.MemberInfos)
{
if (member.CanWrite)
{
g.BeginScope();
member.GenerateDeserializeIL(g);
g.EndScope();
}
}
}
else
{
//在函数模式,只有标记了Parameter的成员才会被反序列化到对象实例中
foreach (var member in typeInfo.MemberInfos)
{
if (member.MemberAttribute.Type == DTOMemberType.Parameter && member.CanWrite)
{
g.BeginScope();
member.GenerateDeserializeIL(g);
g.EndScope();
}
}
}
}
/// <summary>
/// 声明强类型的instance变量留待后续代码使用，避免频繁类型转换
/// </summary>
private static void DeclareInstance(MethodGenerator g, TypeSerializationInfo typeInfo)
{
//TypeClassName instance = (TypeClassName)instance;
var instance = g.Declare(typeInfo.ClassType, SerializationArgs.InstanceName);
g.Assign(instance, () =>
{
g.LoadParameter(SerializationArgs.InstanceIndex);
g.UnboxAny(typeInfo.ClassType);
});
}
/// <summary>
///
/// </summary>
/// <param name="properties"></param>
public static SerializeMethod GenerateMethod(TypeSerializationInfo typeInfo)
{
DynamicMethod method = new DynamicMethod(string.Format("DTOSerialize_{0}", Guid.NewGuid().ToString("n"))
, null
, new Type[] { typeof(object), typeof(IDTOWriter) }
, true);
MethodGenerator g = new MethodGenerator(method);
DeclareInstance(g, typeInfo);
WriteMembers(g, typeInfo);
g.Return();
return((SerializeMethod)method.CreateDelegate(typeof(SerializeMethod)));
}
/// <summary>
///
/// </summary>
/// <param name="properties"></param>
public static DeserializeMethod GenerateMethod(TypeSerializationInfo typeInfo)
{
DynamicMethod method = new DynamicMethod(string.Format("DTODeserialize_{0}", Guid.NewGuid().ToString("n"))
, null
, new Type[] { typeof(object), typeof(IDTOReader) }
, true);
MethodGenerator g = new MethodGenerator(method);
DeclareInstance(g, typeInfo);
ReadMembers(g, typeInfo);
//g.LoadVariable(SerializationArgs.InstanceName);
//if (typeInfo.IsValueType) g.Box();//如果是结构体，需要装箱
g.Return();
return((DeserializeMethod)method.CreateDelegate(typeof(DeserializeMethod)));
}
