| // Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // ignore-tidy-linelength |
| // min-lldb-version: 310 |
| |
| // compile-flags:-g |
| |
| // === GDB TESTS =================================================================================== |
| |
| // gdb-command:set print union on |
| // gdb-command:run |
| |
| // gdb-command:print case1 |
| // gdb-check:$1 = {{RUST$ENUM$DISR = Case1, __0 = 0, __1 = {x = 2088533116, y = 2088533116, z = 31868}}, {RUST$ENUM$DISR = Case1, __0 = 0, __1 = 8970181431921507452, __2 = 31868}} |
| |
| // gdb-command:print case2 |
| // gdb-check:$2 = {{RUST$ENUM$DISR = Case2, __0 = 0, __1 = {x = 286331153, y = 286331153, z = 4369}}, {RUST$ENUM$DISR = Case2, __0 = 0, __1 = 1229782938247303441, __2 = 4369}} |
| |
| // gdb-command:print univariant |
| // gdb-check:$3 = {{__0 = {x = 123, y = 456, z = 789}}} |
| |
| |
| // === LLDB TESTS ================================================================================== |
| |
| // lldb-command:run |
| |
| // lldb-command:print case1 |
| // lldb-check:[...]$0 = Case1(0, Struct { x: 2088533116, y: 2088533116, z: 31868 }) |
| // lldb-command:print case2 |
| // lldb-check:[...]$1 = Case2(0, 1229782938247303441, 4369) |
| |
| // lldb-command:print univariant |
| // lldb-check:[...]$2 = TheOnlyCase(Struct { x: 123, y: 456, z: 789 }) |
| |
| #![allow(unused_variables)] |
| #![feature(omit_gdb_pretty_printer_section)] |
| #![omit_gdb_pretty_printer_section] |
| |
| use self::Regular::{Case1, Case2}; |
| use self::Univariant::TheOnlyCase; |
| |
| struct Struct { |
| x: u32, |
| y: i32, |
| z: i16 |
| } |
| |
| // 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(u64, Struct), |
| Case2(u64, u64, i16) |
| } |
| |
| enum Univariant { |
| TheOnlyCase(Struct) |
| } |
| |
| 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(0, Struct { x: 2088533116, y: 2088533116, z: 31868 }); |
| |
| // 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441 |
| // 0b00010001000100010001000100010001 = 286331153 |
| // 0b0001000100010001 = 4369 |
| // 0b00010001 = 17 |
| let case2 = Case2(0, 1229782938247303441, 4369); |
| |
| let univariant = TheOnlyCase(Struct { x: 123, y: 456, z: 789 }); |
| |
| zzz(); // #break |
| } |
| |
| fn zzz() {()} |