mirror of https://github.com/rust-lang/rust
92 lines
3.0 KiB
Rust
92 lines
3.0 KiB
Rust
// Require a gdb that can read DW_TAG_variant_part.
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//@ min-gdb-version: 8.2
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//@ min-lldb-version: 1800
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// LLDB (18.1+) now supports DW_TAG_variant_part, but there is some bug in either compiler or LLDB
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// with memory layout of discriminant for this particular enum
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// ensure that LLDB won't crash at least (like #57822).
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//@ compile-flags:-g
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// === GDB TESTS ===================================================================================
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// gdb-command:run
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// gdb-command:print b
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// gdb-check:$1 = coroutine_objects::main::{coroutine_env#0}::Unresumed{_ref__a: 0x[...]}
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// gdb-command:continue
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// gdb-command:print b
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// gdb-check:$2 = coroutine_objects::main::{coroutine_env#0}::Suspend0{c: 6, d: 7, _ref__a: 0x[...]}
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// gdb-command:continue
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// gdb-command:print b
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// gdb-check:$3 = coroutine_objects::main::{coroutine_env#0}::Suspend1{c: 7, d: 8, _ref__a: 0x[...]}
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// gdb-command:continue
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// gdb-command:print b
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// gdb-check:$4 = coroutine_objects::main::{coroutine_env#0}::Returned{_ref__a: 0x[...]}
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// === LLDB TESTS ==================================================================================
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// lldb-command:run
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// lldb-command:v b
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// lldb-check:(coroutine_objects::main::{coroutine_env#0}) b = { value = { _ref__a = 0x[...] } $discr$ = [...] }
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// === CDB TESTS ===================================================================================
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// cdb-command: g
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// cdb-command: dx b
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// cdb-check: b : Unresumed [Type: enum2$<coroutine_objects::main::coroutine_env$0>]
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// cdb-check: [+0x[...]] _ref__a : 0x[...] : 5 [Type: int *]
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// cdb-command: g
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// cdb-command: dx b
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// cdb-check: b : Suspend0 [Type: enum2$<coroutine_objects::main::coroutine_env$0>]
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// cdb-check: [+0x[...]] c : 6 [Type: int]
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// cdb-check: [+0x[...]] d : 7 [Type: int]
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// cdb-check: [+0x[...]] _ref__a : 0x[...] : 5 [Type: int *]
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// cdb-command: g
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// cdb-command: dx b
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// cdb-check: b : Suspend1 [Type: enum2$<coroutine_objects::main::coroutine_env$0>]
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// cdb-check: [+0x[...]] c : 7 [Type: int]
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// cdb-check: [+0x[...]] d : 8 [Type: int]
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// cdb-check: [+0x[...]] _ref__a : 0x[...] : 6 [Type: int *]
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// cdb-command: g
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// cdb-command: dx b
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// cdb-check: b : Returned [Type: enum2$<coroutine_objects::main::coroutine_env$0>]
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// cdb-check: [+0x[...]] _ref__a : 0x[...] : 6 [Type: int *]
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#![feature(omit_gdb_pretty_printer_section, coroutines, coroutine_trait, stmt_expr_attributes)]
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#![omit_gdb_pretty_printer_section]
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use std::ops::Coroutine;
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use std::pin::Pin;
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fn main() {
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let mut a = 5;
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let mut b = #[coroutine]
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|| {
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let mut c = 6;
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let mut d = 7;
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yield;
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a += 1;
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c += 1;
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d += 1;
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yield;
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println!("{} {} {}", a, c, d);
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};
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_zzz(); // #break
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Pin::new(&mut b).resume(());
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_zzz(); // #break
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Pin::new(&mut b).resume(());
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_zzz(); // #break
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Pin::new(&mut b).resume(());
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_zzz(); // #break
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}
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#[inline(never)]
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fn _zzz() {
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()
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}
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