/// <summary>
/// 得到过程委托
/// </summary>
/// <param name="method">方法对象</param>
/// <returns>返回过程委托</returns>
public static Proc GetProc(this System.Reflection.MethodInfo method)
{
Guard.NotNull(method, "method");
var proc = method.DeclaringType.IsValueType
? (target, args) => method.Invoke(target, args)
: DefaultDynamicMethodFactory.CreateProcMethod(method);
return((target, args) =>
{
if (args == null)
{
args = new object[method.GetParameters().Length];
}
try
{
proc(target, args);
}
catch (TargetInvocationException ex)
{
throw ex.InnerException;
}
catch (Exception ex)
{
throw ex;
}
});
}
/// <summary>
/// 得到构造函数委托
/// </summary>
/// <param name="constructor">构造函数</param>
/// <returns>返回构造函数委托</returns>
public static ConstructorHandler GetCreator(this System.Reflection.ConstructorInfo constructor)
{
Guard.NotNull(constructor, "constructor");
ConstructorHandler ctor = constructor.DeclaringType.IsValueType ?
(args) => constructor.Invoke(args)
: DefaultDynamicMethodFactory.CreateConstructorMethod(constructor);
ConstructorHandler handler = args =>
{
if (args == null)
{
args = new object[constructor.GetParameters().Length];
}
try
{
return(ctor(args));
}
catch (TargetInvocationException ex)
{
throw ex.InnerException;
}
catch (Exception ex)
{
throw ex;
}
};
return(handler);
}
/// <summary>
/// 得到设置器委托
/// </summary>
/// <param name="member">成员</param>
/// <returns>返回设置器委托</returns>
public static Setter GetSetter(this System.Reflection.MemberInfo member)
{
Guard.NotNull(member, "member");
Setter setter = null;
if (member.DeclaringType.IsValueType)
{
switch (member.MemberType)
{
case MemberTypes.Field:
setter = (target, value) => (member as FieldInfo).SetValue(target, value);
break;
case MemberTypes.Property:
setter = (target, value) => (member as PropertyInfo).SetValue(target, value, null);
break;
case MemberTypes.Method:
setter = (target, value) => (member as MethodInfo).Invoke(target, new object[] { value });
break;
}
}
else
{
setter = DefaultDynamicMethodFactory.CreateSetter(member);
}
return((target, value) =>
{
try
{
if (setter != null)
{
setter(target, value);
}
}
catch (TargetInvocationException ex)
{
throw ex.InnerException;
}
catch (Exception ex)
{
throw ex;
}
});
}
/// <summary>
/// 得到缺省构造函数委托
/// </summary>
/// <param name="binderType"></param>
/// <returns></returns>
public static DefaultConstructorHandler GetDefaultCreator(this Type type)
{
Guard.NotNull(type, "type");
var ctor = DefaultDynamicMethodFactory.CreateDefaultConstructorMethod(type);
DefaultConstructorHandler handler = () =>
{
try
{
return(ctor());
}
catch (TargetInvocationException ex)
{
throw ex.InnerException;
}
catch (Exception ex)
{
throw ex;
}
};
return(handler);
}
