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[clangd] Enable hover on character literal.

Authored by hokein on Jan 21 2022, 1:12 AM.



In the initial hover expression patch (, we
disabled all literals.

There is some value on running hover on character literals (e.g. see the
int value of the char).

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Event Timeline

hokein created this revision.Jan 21 2022, 1:12 AM
hokein requested review of this revision.Jan 21 2022, 1:12 AM
Herald added a project: Restricted Project. · View Herald TranscriptJan 21 2022, 1:12 AM
hokein added inline comments.Jan 21 2022, 1:32 AM

there may be some value to enable StringLiteral as well (e.g. see the length of the string), but it seems to work partially:

  • auto char_ptr = "ab^c"; // fails
  • char abc[] = "a^bc"; // works
  • const char* ptr = "a^bc"; // fails"
  • "a^bc"; // fails
  • func("a^bc"); // fails

Looks like the reason is that EvaluateAsRValue fails on a lvalue StringLiteral. It'd require a bit of work to make it useful for common cases.

friendly ping, I think it would be nice to get it in before 14 release.

kadircet accepted this revision.Jan 26 2022, 6:50 AM

thanks, lgtm!



This revision is now accepted and ready to land.Jan 26 2022, 6:50 AM
This revision was automatically updated to reflect the committed changes.
hokein marked an inline comment as done.