tests/debuginfo/struct-style-enum.rs

// LLDB 1800+ tests were not tested in CI, broke, and now are disabled
//@ ignore-lldb
//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

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

//@ gdb-command:set print union on
//@ gdb-command:run

//@ gdb-command:print case1
//@ gdb-check:$1 = struct_style_enum::Regular::Case1{a: 0, b: 31868, c: 31868, d: 31868, e: 31868}

//@ gdb-command:print case2
//@ gdb-check:$2 = struct_style_enum::Regular::Case2{a: 0, b: 286331153, c: 286331153}

//@ gdb-command:print case3
//@ gdb-check:$3 = struct_style_enum::Regular::Case3{a: 0, b: 6438275382588823897}

//@ gdb-command:print univariant
//@ gdb-check:$4 = struct_style_enum::Univariant::TheOnlyCase{a: -1}


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

//@ lldb-command:run

//@ lldb-command:v case1
//@ lldb-check:(struct_style_enum::Regular) case1 = Case1{a:0, b:31868, c:31868, d:31868, e:31868} { a = 0 b = 31868 c = 31868 d = 31868 e = 31868 }

//@ lldb-command:v case2
//@ lldb-check:(struct_style_enum::Regular) case2 = Case2{a:0, b:286331153, c:286331153} { a = 0 b = 286331153 c = 286331153 }

//@ lldb-command:v case3
//@ lldb-check:(struct_style_enum::Regular) case3 = Case3{a:0, b:6438275382588823897} { a = 0 b = 6438275382588823897 }

//@ lldb-command:v univariant
//@ lldb-check:(struct_style_enum::Univariant) univariant = TheOnlyCase{a:-1} { a = -1 }

#![allow(unused_variables)]

use self::Regular::{Case1, Case2, Case3};
use self::Univariant::TheOnlyCase;

// 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 Regular {
    Case1 { a: u64, b: u16, c: u16, d: u16, e: u16},
    Case2 { a: u64, b: u32, c: u32},
    Case3 { a: u64, b: u64 }
}

enum Univariant {
    TheOnlyCase { a: 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 case1 = Case1 { a: 0, b: 31868, c: 31868, d: 31868, e: 31868 };

    // 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
    // 0b00010001000100010001000100010001 = 286331153
    // 0b0001000100010001 = 4369
    // 0b00010001 = 17
    let case2 = Case2 { a: 0, b: 286331153, c: 286331153 };

    // 0b0101100101011001010110010101100101011001010110010101100101011001 = 6438275382588823897
    // 0b01011001010110010101100101011001 = 1499027801
    // 0b0101100101011001 = 22873
    // 0b01011001 = 89
    let case3 = Case3 { a: 0, b: 6438275382588823897 };

    let univariant = TheOnlyCase { a: -1 };

    zzz(); // #break
}

fn zzz() {()}