94 lines
3.5 KiB
Rust
94 lines
3.5 KiB
Rust
// Require a gdb or lldb that can read DW_TAG_variant_part.
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//@ min-gdb-version: 8.2
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//@ needs-rust-lldb
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//@ compile-flags:-g
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// === GDB TESTS ===================================================================================
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// gdb-command:set print union on
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// gdb-command:run
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// gdb-command:print case1
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// gdbr-check:$1 = generic_tuple_style_enum::Regular<u16, u32, u64>::Case1(0, 31868, 31868, 31868, 31868)
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// gdb-command:print case2
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// gdbr-check:$2 = generic_tuple_style_enum::Regular<i16, i32, i64>::Case2(0, 286331153, 286331153)
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// gdb-command:print case3
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// gdbr-check:$3 = generic_tuple_style_enum::Regular<i16, i32, i64>::Case3(0, 6438275382588823897)
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// gdb-command:print univariant
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// gdbr-check:$4 = generic_tuple_style_enum::Univariant<i64>::TheOnlyCase(-1)
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// === LLDB TESTS ==================================================================================
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// lldb-command:run
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// lldb-command:v case1
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// lldbr-check:(generic_tuple_style_enum::Regular<u16, u32, u64>::Case1) case1 = { __0 = 0 __1 = 31868 __2 = 31868 __3 = 31868 __4 = 31868 }
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// lldb-command:v case2
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// lldbr-check:(generic_tuple_style_enum::Regular<i16, i32, i64>::Case2) case2 = Regular<i16, i32, i64>::Case2 { Case1: 0, Case2: 286331153, Case3: 286331153 }
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// lldb-command:v case3
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// lldbr-check:(generic_tuple_style_enum::Regular<i16, i32, i64>::Case3) case3 = Regular<i16, i32, i64>::Case3 { Case1: 0, Case2: 6438275382588823897 }
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// lldb-command:v univariant
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// lldbr-check:(generic_tuple_style_enum::Univariant<i64>) univariant = Univariant<i64> { TheOnlyCase: Univariant<i64>::TheOnlyCase(-1) }
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#![feature(omit_gdb_pretty_printer_section)]
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#![omit_gdb_pretty_printer_section]
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use self::Regular::{Case1, Case2, Case3};
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use self::Univariant::TheOnlyCase;
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// NOTE: This is a copy of the non-generic test case. The `Txx` type parameters have to be
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// substituted with something of size `xx` bits and the same alignment as an integer type of the
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// same size.
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// The first element is to ensure proper alignment, irrespective of the machines word size. Since
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// the size of the discriminant value is machine dependent, this has be taken into account when
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// datatype layout should be predictable as in this case.
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enum Regular<T16, T32, T64> {
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Case1(T64, T16, T16, T16, T16),
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Case2(T64, T32, T32),
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Case3(T64, T64)
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}
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enum Univariant<T64> {
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TheOnlyCase(T64)
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}
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fn main() {
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// In order to avoid endianness trouble all of the following test values consist of a single
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// repeated byte. This way each interpretation of the union should look the same, no matter if
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// this is a big or little endian machine.
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// 0b0111110001111100011111000111110001111100011111000111110001111100 = 8970181431921507452
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// 0b01111100011111000111110001111100 = 2088533116
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// 0b0111110001111100 = 31868
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// 0b01111100 = 124
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let case1: Regular<u16, u32, u64> = Case1(0_u64, 31868_u16, 31868_u16, 31868_u16, 31868_u16);
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// 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
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// 0b00010001000100010001000100010001 = 286331153
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// 0b0001000100010001 = 4369
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// 0b00010001 = 17
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let case2: Regular<i16, i32, i64> = Case2(0_i64, 286331153_i32, 286331153_i32);
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// 0b0101100101011001010110010101100101011001010110010101100101011001 = 6438275382588823897
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// 0b01011001010110010101100101011001 = 1499027801
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// 0b0101100101011001 = 22873
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// 0b01011001 = 89
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let case3: Regular<i16, i32, i64> = Case3(0_i64, 6438275382588823897_i64);
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let univariant = TheOnlyCase(-1_i64);
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zzz(); // #break
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}
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fn zzz() { () }
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