1 // Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // ignore-tidy-linelength
13 // Require LLVM with DW_TAG_variant_part and a gdb and lldb that can
15 // min-system-llvm-version: 7.0
16 // min-gdb-version: 8.2
21 // === GDB TESTS ===================================================================================
23 // gdb-command:set print union on
26 // gdb-command:print case1
27 // gdbr-check:$1 = struct_style_enum::Regular::Case1{a: 0, b: 31868, c: 31868, d: 31868, e: 31868}
29 // gdb-command:print case2
30 // gdbr-check:$2 = struct_style_enum::Regular::Case2{a: 0, b: 286331153, c: 286331153}
32 // gdb-command:print case3
33 // gdbr-check:$3 = struct_style_enum::Regular::Case3{a: 0, b: 6438275382588823897}
35 // gdb-command:print univariant
36 // gdbr-check:$4 = struct_style_enum::Univariant::TheOnlyCase{a: -1}
39 // === LLDB TESTS ==================================================================================
43 // lldb-command:print case1
44 // lldbr-check:(struct_style_enum::Regular::Case1) case1 = { a = 0 b = 31868 c = 31868 d = 31868 e = 31868 }
46 // lldb-command:print case2
47 // lldbr-check:(struct_style_enum::Regular::Case2) case2 = Case2 { Case1: 0, Case2: 286331153, Case3: 286331153 }
49 // lldb-command:print case3
50 // lldbr-check:(struct_style_enum::Regular::Case3) case3 = Case3 { Case1: 0, Case2: 6438275382588823897 }
52 // lldb-command:print univariant
53 // lldbr-check:(struct_style_enum::Univariant) univariant = Univariant { TheOnlyCase: TheOnlyCase { a: -1 } }
55 #![allow(unused_variables)]
56 #![feature(omit_gdb_pretty_printer_section)]
57 #![omit_gdb_pretty_printer_section]
59 use self::Regular::{Case1, Case2, Case3};
60 use self::Univariant::TheOnlyCase;
62 // The first element is to ensure proper alignment, irrespective of the machines word size. Since
63 // the size of the discriminant value is machine dependent, this has be taken into account when
64 // datatype layout should be predictable as in this case.
66 Case1 { a: u64, b: u16, c: u16, d: u16, e: u16},
67 Case2 { a: u64, b: u32, c: u32},
68 Case3 { a: u64, b: u64 }
72 TheOnlyCase { a: i64 }
77 // In order to avoid endianness trouble all of the following test values consist of a single
78 // repeated byte. This way each interpretation of the union should look the same, no matter if
79 // this is a big or little endian machine.
81 // 0b0111110001111100011111000111110001111100011111000111110001111100 = 8970181431921507452
82 // 0b01111100011111000111110001111100 = 2088533116
83 // 0b0111110001111100 = 31868
85 let case1 = Case1 { a: 0, b: 31868, c: 31868, d: 31868, e: 31868 };
87 // 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
88 // 0b00010001000100010001000100010001 = 286331153
89 // 0b0001000100010001 = 4369
91 let case2 = Case2 { a: 0, b: 286331153, c: 286331153 };
93 // 0b0101100101011001010110010101100101011001010110010101100101011001 = 6438275382588823897
94 // 0b01011001010110010101100101011001 = 1499027801
95 // 0b0101100101011001 = 22873
97 let case3 = Case3 { a: 0, b: 6438275382588823897 };
99 let univariant = TheOnlyCase { a: -1 };