src/test/debuginfo/borrowed-enum.rs

   1 // ignore-tidy-linelength
   2
   3 // Require LLVM with DW_TAG_variant_part and a gdb or lldb that can read it.
   4 // min-system-llvm-version: 7.0
   5 // min-gdb-version: 8.2
   6 // rust-lldb
   7
   8 // compile-flags:-g
   9
  10 // === GDB TESTS ===================================================================================
  11
  12 // gdb-command:run
  13
  14 // gdb-command:print *the_a_ref
  15 // gdbr-check:$1 = borrowed_enum::ABC::TheA{x: 0, y: 8970181431921507452}
  16
  17 // gdb-command:print *the_b_ref
  18 // gdbr-check:$2 = borrowed_enum::ABC::TheB(0, 286331153, 286331153)
  19
  20 // gdb-command:print *univariant_ref
  21 // gdbr-check:$3 = borrowed_enum::Univariant::TheOnlyCase(4820353753753434)
  22
  23
  24 // === LLDB TESTS ==================================================================================
  25
  26 // lldb-command:run
  27
  28 // lldb-command:print *the_a_ref
  29 // lldbr-check:(borrowed_enum::ABC::TheA) *the_a_ref = TheA { TheA: 0, TheB: 8970181431921507452 }
  30 // lldb-command:print *the_b_ref
  31 // lldbr-check:(borrowed_enum::ABC::TheB) *the_b_ref = { = 0 = 286331153 = 286331153 }
  32 // lldb-command:print *univariant_ref
  33 // lldbr-check:(borrowed_enum::Univariant) *univariant_ref = { TheOnlyCase = { = 4820353753753434 } }
  34
  35 #![allow(unused_variables)]
  36 #![feature(omit_gdb_pretty_printer_section)]
  37 #![omit_gdb_pretty_printer_section]
  38
  39 // The first element is to ensure proper alignment, irrespective of the machines word size. Since
  40 // the size of the discriminant value is machine dependent, this has be taken into account when
  41 // datatype layout should be predictable as in this case.
  42 enum ABC {
  43     TheA { x: i64, y: i64 },
  44     TheB (i64, i32, i32),
  45 }
  46
  47 // This is a special case since it does not have the implicit discriminant field.
  48 enum Univariant {
  49     TheOnlyCase(i64)
  50 }
  51
  52 fn main() {
  53
  54     // 0b0111110001111100011111000111110001111100011111000111110001111100 = 8970181431921507452
  55     // 0b01111100011111000111110001111100 = 2088533116
  56     // 0b0111110001111100 = 31868
  57     // 0b01111100 = 124
  58     let the_a = ABC::TheA { x: 0, y: 8970181431921507452 };
  59     let the_a_ref: &ABC = &the_a;
  60
  61     // 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
  62     // 0b00010001000100010001000100010001 = 286331153
  63     // 0b0001000100010001 = 4369
  64     // 0b00010001 = 17
  65     let the_b = ABC::TheB (0, 286331153, 286331153);
  66     let the_b_ref: &ABC = &the_b;
  67
  68     let univariant = Univariant::TheOnlyCase(4820353753753434);
  69     let univariant_ref: &Univariant = &univariant;
  70
  71     zzz(); // #break
  72 }
  73
  74 fn zzz() {()}