lldb doesn't print enums

[artemmukhin]

enum E1 { A, B }
enum E2 { A1 { x: i32, y: i32 }, B1(u8), C1 }
fn main() {
    let a = E1::A;
    let aa = E2::A1 { x: 42, y: 123 };
    let bb = E2::B1(10);
    let cc = E2::C1;
}

Run lldb (without pretty-printers, lldb-1000.0.38.2)

(lldb) p a
(main::E1) $0 = A
(lldb) p aa
(main::E2) $1 = {}
(lldb) p bb
(main::E2) $2 = {}
(lldb) p cc
(main::E2) $3 = {}

It affects both stable (1.32.0) and nightly (1.34.0) Rust toolchains.

[tromey]

This is a dup of #79530, or vice versa.

[veera-sivarajan]

Output from lldb-18:

(lldb) p a
(main::E1) A
(lldb) p bb
(main::E2) {
  $variants$ = {
    $variant$0 = {
      $discr$ = '\x01'
      value = (x = 0, y = -136351134)
    }
    $variant$1 = {
      $discr$ = '\x01'
      value = (__0 = '\n')
    }
    $variant$2 = ($discr$ = '\x01', value = hello::E2::C1:8 @ 0x00007fffffffda30)
  }
}
(lldb) p aa
(main::E2) {
  $variants$ = {
    $variant$0 = {
      $discr$ = '\0'
      value = (x = 42, y = 123)
    }
    $variant$1 = {
      $discr$ = '\0'
      value = (__0 = '\x7f')
    }
    $variant$2 = ($discr$ = '\0', value = hello::E2::C1:8 @ 0x00007fffffffda24)
  }
}

[tromey]

Did you try with rust-lldb? I think the pretty-printers there are supposed to hide the non-relevant variant parts. See #124781. Also, again, this is a dup of #79530 and should probably be closed.