src/test/debuginfo/generic-enum-with-different-disr-sizes.rs

   1 // ignore-lldb: FIXME(#27089)
   2 // min-lldb-version: 310
   3
   4 // Require a gdb that can read DW_TAG_variant_part.
   5 // min-gdb-version: 8.2
   6
   7 // compile-flags:-g
   8
   9 // === GDB TESTS ===================================================================================
  10 // gdb-command:run
  11
  12 // gdb-command:print eight_bytes1
  13 // gdbr-check:$1 = generic_enum_with_different_disr_sizes::Enum<f64>::Variant1(100)
  14
  15 // gdb-command:print four_bytes1
  16 // gdbr-check:$2 = generic_enum_with_different_disr_sizes::Enum<i32>::Variant1(101)
  17
  18 // gdb-command:print two_bytes1
  19 // gdbr-check:$3 = generic_enum_with_different_disr_sizes::Enum<i16>::Variant1(102)
  20
  21 // gdb-command:print one_byte1
  22 // gdbr-check:$4 = generic_enum_with_different_disr_sizes::Enum<u8>::Variant1(65)
  23
  24
  25 // gdb-command:print eight_bytes2
  26 // gdbr-check:$5 = generic_enum_with_different_disr_sizes::Enum<f64>::Variant2(100)
  27
  28 // gdb-command:print four_bytes2
  29 // gdbr-check:$6 = generic_enum_with_different_disr_sizes::Enum<i32>::Variant2(101)
  30
  31 // gdb-command:print two_bytes2
  32 // gdbr-check:$7 = generic_enum_with_different_disr_sizes::Enum<i16>::Variant2(102)
  33
  34 // gdb-command:print one_byte2
  35 // gdbr-check:$8 = generic_enum_with_different_disr_sizes::Enum<u8>::Variant2(65)
  36
  37 // gdb-command:continue
  38
  39 // === LLDB TESTS ==================================================================================
  40 // lldb-command:run
  41
  42 // lldb-command:print eight_bytes1
  43 // lldb-check:[...]$0 = Variant1(100)
  44 // lldb-command:print four_bytes1
  45 // lldb-check:[...]$1 = Variant1(101)
  46 // lldb-command:print two_bytes1
  47 // lldb-check:[...]$2 = Variant1(102)
  48 // lldb-command:print one_byte1
  49 // lldb-check:[...]$3 = Variant1('A')
  50
  51 // lldb-command:print eight_bytes2
  52 // lldb-check:[...]$4 = Variant2(100)
  53 // lldb-command:print four_bytes2
  54 // lldb-check:[...]$5 = Variant2(101)
  55 // lldb-command:print two_bytes2
  56 // lldb-check:[...]$6 = Variant2(102)
  57 // lldb-command:print one_byte2
  58 // lldb-check:[...]$7 = Variant2('A')
  59
  60 // lldb-command:continue
  61
  62 #![allow(unused_variables)]
  63 #![allow(dead_code)]
  64 #![feature(omit_gdb_pretty_printer_section)]
  65 #![omit_gdb_pretty_printer_section]
  66
  67 // This test case makes sure that we get correct type descriptions for the enum
  68 // discriminant of different instantiations of the same generic enum type where,
  69 // dependending on the generic type parameter(s), the discriminant has a
  70 // different size in memory.
  71
  72 enum Enum<T> {
  73     Variant1(T),
  74     Variant2(T)
  75 }
  76
  77 fn main() {
  78     // These are ordered for descending size on purpose
  79     let eight_bytes1 = Enum::Variant1(100.0f64);
  80     let four_bytes1 = Enum::Variant1(101i32);
  81     let two_bytes1 = Enum::Variant1(102i16);
  82     let one_byte1 = Enum::Variant1(65u8);
  83
  84     let eight_bytes2 = Enum::Variant2(100.0f64);
  85     let four_bytes2 = Enum::Variant2(101i32);
  86     let two_bytes2 = Enum::Variant2(102i16);
  87     let one_byte2 = Enum::Variant2(65u8);
  88
  89     zzz(); // #break
  90 }
  91
  92 fn zzz() { () }