src/test/debuginfo/option-like-enum.rs

   1 // ignore-test // Test temporarily ignored due to debuginfo tests being disabled, see PR 47155
   2
   3 // min-lldb-version: 310
   4
   5 // compile-flags:-g
   6
   7 // === GDB TESTS ===================================================================================
   8
   9 // gdb-command:run
  10
  11 // gdb-command:print some
  12 // gdbg-check:$1 = {RUST$ENCODED$ENUM$0$None = {__0 = 0x12345678}}
  13 // gdbr-check:$1 = core::option::Option<&u32>::Some(0x12345678)
  14
  15 // gdb-command:print none
  16 // gdbg-check:$2 = {RUST$ENCODED$ENUM$0$None = {__0 = 0x0}}
  17 // gdbr-check:$2 = core::option::Option<&u32>::None
  18
  19 // gdb-command:print full
  20 // gdbg-check:$3 = {RUST$ENCODED$ENUM$1$Empty = {__0 = 454545, __1 = 0x87654321, __2 = 9988}}
  21 // gdbr-check:$3 = option_like_enum::MoreFields::Full(454545, 0x87654321, 9988)
  22
  23 // gdbg-command:print empty_gdb->discr
  24 // gdbr-command:print empty_gdb.discr
  25 // gdb-check:$4 = (isize *) 0x0
  26
  27 // gdb-command:print droid
  28 // gdbg-check:$5 = {RUST$ENCODED$ENUM$2$Void = {id = 675675, range = 10000001, internals = 0x43218765}}
  29 // gdbr-check:$5 = option_like_enum::NamedFields::Droid{id: 675675, range: 10000001, internals: 0x43218765}
  30
  31 // gdbg-command:print void_droid_gdb->internals
  32 // gdbr-command:print void_droid_gdb.internals
  33 // gdb-check:$6 = (isize *) 0x0
  34
  35 // gdb-command:print nested_non_zero_yep
  36 // gdbg-check:$7 = {RUST$ENCODED$ENUM$1$2$Nope = {__0 = 10.5, __1 = {a = 10, b = 20, c = [...]}}}
  37 // gdbr-check:$7 = option_like_enum::NestedNonZero::Yep(10.5, option_like_enum::NestedNonZeroField {a: 10, b: 20, c: 0x[...] "x[...]"})
  38
  39 // gdb-command:print nested_non_zero_nope
  40 // gdbg-check:$8 = {RUST$ENCODED$ENUM$1$2$Nope = {__0 = [...], __1 = {a = [...], b = [...], c = 0x0}}}
  41 // gdbr-check:$8 = option_like_enum::NestedNonZero::Nope
  42
  43 // gdb-command:continue
  44
  45
  46 // === LLDB TESTS ==================================================================================
  47
  48 // lldb-command:run
  49
  50 // lldb-command:print some
  51 // lldb-check:[...]$0 = Some(&0x12345678)
  52
  53 // lldb-command:print none
  54 // lldb-check:[...]$1 = None
  55
  56 // lldb-command:print full
  57 // lldb-check:[...]$2 = Full(454545, &0x87654321, 9988)
  58
  59 // lldb-command:print empty
  60 // lldb-check:[...]$3 = Empty
  61
  62 // lldb-command:print droid
  63 // lldb-check:[...]$4 = Droid { id: 675675, range: 10000001, internals: &0x43218765 }
  64
  65 // lldb-command:print void_droid
  66 // lldb-check:[...]$5 = Void
  67
  68 // lldb-command:print some_str
  69 // lldb-check:[...]$6 = Some("abc")
  70
  71 // lldb-command:print none_str
  72 // lldb-check:[...]$7 = None
  73
  74 // lldb-command:print nested_non_zero_yep
  75 // lldb-check:[...]$8 = Yep(10.5, NestedNonZeroField { a: 10, b: 20, c: &[...] })
  76
  77 // lldb-command:print nested_non_zero_nope
  78 // lldb-check:[...]$9 = Nope
  79
  80
  81 #![feature(omit_gdb_pretty_printer_section)]
  82 #![omit_gdb_pretty_printer_section]
  83
  84 // If a struct has exactly two variants, one of them is empty, and the other one
  85 // contains a non-nullable pointer, then this value is used as the discriminator.
  86 // The test cases in this file make sure that something readable is generated for
  87 // this kind of types.
  88 // If the non-empty variant contains a single non-nullable pointer than the whole
  89 // item is represented as just a pointer and not wrapped in a struct.
  90 // Unfortunately (for these test cases) the content of the non-discriminant fields
  91 // in the null-case is not defined. So we just read the discriminator field in
  92 // this case (by casting the value to a memory-equivalent struct).
  93
  94 enum MoreFields<'a> {
  95     Full(u32, &'a isize, i16),
  96     Empty
  97 }
  98
  99 struct MoreFieldsRepr<'a> {
 100     a: u32,
 101     discr: &'a isize,
 102     b: i16
 103 }
 104
 105 enum NamedFields<'a> {
 106     Droid { id: i32, range: i64, internals: &'a isize },
 107     Void
 108 }
 109
 110 struct NamedFieldsRepr<'a> {
 111     id: i32,
 112     range: i64,
 113     internals: &'a isize
 114 }
 115
 116 struct NestedNonZeroField<'a> {
 117     a: u16,
 118     b: u32,
 119     c: &'a char,
 120 }
 121
 122 enum NestedNonZero<'a> {
 123     Yep(f64, NestedNonZeroField<'a>),
 124     Nope
 125 }
 126
 127 fn main() {
 128
 129     let some_str: Option<&'static str> = Some("abc");
 130     let none_str: Option<&'static str> = None;
 131
 132     let some: Option<&u32> = Some(unsafe { std::mem::transmute(0x12345678_usize) });
 133     let none: Option<&u32> = None;
 134
 135     let full = MoreFields::Full(454545, unsafe { std::mem::transmute(0x87654321_usize) }, 9988);
 136
 137     let empty = MoreFields::Empty;
 138     let empty_gdb: &MoreFieldsRepr = unsafe { std::mem::transmute(&MoreFields::Empty) };
 139
 140     let droid = NamedFields::Droid {
 141         id: 675675,
 142         range: 10000001,
 143         internals: unsafe { std::mem::transmute(0x43218765_usize) }
 144     };
 145
 146     let void_droid = NamedFields::Void;
 147     let void_droid_gdb: &NamedFieldsRepr = unsafe { std::mem::transmute(&NamedFields::Void) };
 148
 149     let x = 'x';
 150     let nested_non_zero_yep = NestedNonZero::Yep(
 151         10.5,
 152         NestedNonZeroField {
 153             a: 10,
 154             b: 20,
 155             c: &x
 156         });
 157
 158     let nested_non_zero_nope = NestedNonZero::Nope;
 159
 160     zzz(); // #break
 161 }
 162
 163 fn zzz() {()}