如何使用Reflection调用自定义运算符

Question

在我的小项目中,我正在使用System.Reflection类来生成可执行代码.我需要调用+自定义类型的运算符.有谁知道如何使用C#反射调用自定义类的自定义运算符？

Answer 1

C#编译器重载运营商转变为功能与名字op_XXXX在那里XXXX是操作.例如,operator +编译为op_Addition.

以下是可重载运算符及其各自方法名称的完整列表:

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?         Operator         ?      Method Name      ?       Description        ?
???????????????????????????????????????????????????????????????????????????????
? operator +               ? op_UnaryPlus          ? Unary                    ?
? operator -               ? op_UnaryNegation      ? Unary                    ?
? operator ++              ? op_Increment          ?                          ?
? operator --              ? op_Decrement          ?                          ?
? operator !               ? op_LogicalNot         ?                          ?
? operator +               ? op_Addition           ?                          ?
? operator -               ? op_Subtraction        ?                          ?
? operator *               ? op_Multiply           ?                          ?
? operator /               ? op_Division           ?                          ?
? operator &               ? op_BitwiseAnd         ?                          ?
? operator |               ? op_BitwiseOr          ?                          ?
? operator ^               ? op_ExclusiveOr        ?                          ?
? operator ~               ? op_OnesComplement     ?                          ?
? operator ==              ? op_Equality           ?                          ?
? operator !=              ? op_Inequality         ?                          ?
? operator <               ? op_LessThan           ?                          ?
? operator >               ? op_GreaterThan        ?                          ?
? operator <=              ? op_LessThanOrEqual    ?                          ?
? operator >=              ? op_GreaterThanOrEqual ?                          ?
? operator <<              ? op_LeftShift          ?                          ?
? operator >>              ? op_RightShift         ?                          ?
? operator %               ? op_Modulus            ?                          ?
? implicit operator <type> ? op_Implicit           ? Implicit type conversion ?
? explicit operator <type> ? op_Explicit           ? Explicit type conversion ?
? operator true            ? op_True               ?                          ?
? operator false           ? op_False              ?                          ?
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所以要检索struct 的operator+方法DateTime,你需要写:

MethodInfo mi = typeof(DateTime).GetMethod("op_Addition",
    BindingFlags.Static | BindingFlags.Public );

Answer 2

typeof(A).GetMethod("op_Addition").Invoke(null, instance1, instance2);