如何在Delphi中将单个枚举值标记为已弃用

Question

我希望有以下内容:

TEnumType = (
  etValue1 = 1,
  etValue2 = 2 deprecated,
  etValue3 = 3);

它返回:

[DCC Error] unt_CollectionImportType.pas(19): E2029 ',' or ')' expected 
but identifier 'deprecated' found.

有没有办法指示编译器不推荐使用此值.

Answer 1

type
  TEnumType = (
    etValue1 = 1,
    etDeprecated2 = 2, // was: etValue2; Renamed so we can deprecate it by name
    etValue3 = 3);

const
   etValue2 = etDeprecated2 deprecated; // Declares a constant mapped to the renamed enum value.