[Feature Request] Support custom user-defined types/subtypes

[Nabav]

LSP v3.17 adds subtypes. Is it possible to support them in VHDL-LS?

I am experiencing VHDL-LS in VSCode. I see that the custom type is highlighted during declaration.

type my_type_t is (FIRST_STATE, SECOND_STATE);
--   ^^^^^^^^^ <- highlighted

But it is not highlighted when defining an instance of that type.

signal my_signal : my_type_t := FIRST_STATE;
--                 ^^^^^^^^^ <- not highlighted

The same happens for subtypes. The subtype is highlighted during declaration:

subtype my_int_t is integer range 0 to 63;
--      ^^^^^^^^ <- highlighted

But the instance type is not highlighted:

constant MY_CONST : my_int_t := 42;
--                  ^^^^^^^^ <- not highlighted

Please let me know, if I am wrong reporting here and the issue should be reported in server side project.

[Nabav]

Moved to VHDL-LS/rust_hdl#196

[Nabav]

As mentioned on sever side, the syntax highlighting is not part of the server.

[Schottkyc137]

Actually, I think that this does belong to the language server 😬.
While it is true that the vscode extension defines the syntax highlighting, the feature that you want doesn't have anything to do with the subtypes capability of the LSP. Instead, I believe that what you want are Semantic Tokens. This deals with highlighting types and other language elements which the base implementation herein is not capable of.

[Nabav]

@kraigher , please consider ☝️, thanks.