src/test/debuginfo/unique-enum-legacy.rs

// ignore-tidy-linelength
// min-lldb-version: 310

// As long as LLVM 5 and LLVM 6 are supported, we want to test the
// enum debuginfo fallback mode.  Once those are desupported, this
// test can be removed, as there is another (non-"legacy") test that
// tests the new mode.
// ignore-llvm-version: 7.0 - 9.9.9
// ignore-gdb-version: 7.11.90 - 7.12.9
// ignore-gdb-version: 8.2 - 9.9

// compile-flags:-g

// === GDB TESTS ===================================================================================

// gdb-command:run

// gdb-command:print *the_a
// gdbg-check:$1 = {{RUST$ENUM$DISR = TheA, x = 0, y = 8970181431921507452}, {RUST$ENUM$DISR = TheA, [...]}}
// gdbr-check:$1 = unique_enum_legacy::ABC::TheA{x: 0, y: 8970181431921507452}

// gdb-command:print *the_b
// gdbg-check:$2 = {{RUST$ENUM$DISR = TheB, [...]}, {RUST$ENUM$DISR = TheB, __0 = 0, __1 = 286331153, __2 = 286331153}}
// gdbr-check:$2 = unique_enum_legacy::ABC::TheB(0, 286331153, 286331153)

// gdb-command:print *univariant
// gdbg-check:$3 = {{__0 = 123234}}
// gdbr-check:$3 = unique_enum_legacy::Univariant::TheOnlyCase(123234)


// === LLDB TESTS ==================================================================================

// lldb-command:run

// lldb-command:print *the_a
// lldbg-check:[...]$0 = TheA { x: 0, y: 8970181431921507452 }
// lldbr-check:(unique_enum_legacy::ABC::TheA) *the_a = TheA { unique_enum_legacy::ABC::TheA: 0, unique_enum_legacy::ABC::TheB: 8970181431921507452 }

// lldb-command:print *the_b
// lldbg-check:[...]$1 = TheB(0, 286331153, 286331153)
// lldbr-check:(unique_enum_legacy::ABC::TheB) *the_b = { = 0 = 286331153 = 286331153 }

// lldb-command:print *univariant
// lldbg-check:[...]$2 = TheOnlyCase(123234)
// lldbr-check:(unique_enum_legacy::Univariant) *univariant = { unique_enum_legacy::TheOnlyCase = { = 123234 } }

#![allow(unused_variables)]
#![feature(box_syntax)]
#![feature(omit_gdb_pretty_printer_section)]
#![omit_gdb_pretty_printer_section]

// The first element is to ensure proper alignment, irrespective of the machines word size. Since
// the size of the discriminant value is machine dependent, this has be taken into account when
// datatype layout should be predictable as in this case.
enum ABC {
    TheA { x: i64, y: i64 },
    TheB (i64, i32, i32),
}

// This is a special case since it does not have the implicit discriminant field.
enum Univariant {
    TheOnlyCase(i64)
}

fn main() {

    // In order to avoid endianness trouble all of the following test values consist of a single
    // repeated byte. This way each interpretation of the union should look the same, no matter if
    // this is a big or little endian machine.

    // 0b0111110001111100011111000111110001111100011111000111110001111100 = 8970181431921507452
    // 0b01111100011111000111110001111100 = 2088533116
    // 0b0111110001111100 = 31868
    // 0b01111100 = 124
    let the_a: Box<_> = box ABC::TheA { x: 0, y: 8970181431921507452 };

    // 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
    // 0b00010001000100010001000100010001 = 286331153
    // 0b0001000100010001 = 4369
    // 0b00010001 = 17
    let the_b: Box<_> = box ABC::TheB (0, 286331153, 286331153);

    let univariant: Box<_> = box Univariant::TheOnlyCase(123234);

    zzz(); // #break
}

fn zzz() {()}