Is possible to mark an entire const block as deprecated?

Question

I know you can mark a single constant as deprecated using

const
  NotDeprConst1 = 1;
  DeprConst = 2 deprecated;
  NotDeprConst2 = 2;

But, can you mark a whole const block as deprecated without marking the constants one by one?

I would like to do something like:

const deprecated
  DeprConst1 = 1;
  DeprConst2 = 2;
  DeprConst3 = 3;

That doesn't compile however (the compiler sees "deprecated" as a identifier).

Or maybe there's a compiler directive:

{$DEPRECATED ON}
const
  DeprConst1 = 1;
  DeprConst2 = 2;
  DeprConst3 = 3;
{$DEPRECATED OFF}

Embarcadero's hinting directives documentation says you can mark any declaration with a hint (like deprecated) but doesn't elaborate.

Answer 1

As you have found out, a const block can not be deprecated in one go. There's also no compiler directive like you were speculating. However, the documentation you refer to says

When a hint directive appears in a unit declaration, it means that the hint applies to everything in the unit. For example, the Windows 3.1 style OleAuto.pas unit on Windows is completely deprecated. Any reference to that unit or any symbol in that unit produces a deprecation message.

By moving deprecated const declarations to a new unit and marking that unit deprecated, you can deprecate a larger amount of declarations in one go. Then, of course, you still need to fix unit references. Whether it saves effort or not is for you to decide.