Closed
Description
Code
struct S {
_: str
}
fn func(a: S)
{
let _x = a.f;
}
fn main() {}Meta
rustc --version --verbose:
rustc 1.78.0-dev
binary: rustc
commit-hash: unknown
commit-date: unknown
host: x86_64-pc-windows-msvc
release: 1.78.0-dev
LLVM version: 18.1.0
Error output
error[E0658]: unnamed fields are not yet fully implemented
--> ../121757-ice-self-is-struct.rs:21:5
|
21 | _: str
| ^
|
= note: see issue #49804 <https://github.com/rust-lang/rust/issues/49804> for more information
= help: add `#![feature(unnamed_fields)]` to the crate attributes to enable
error: struct with unnamed fields must have `#[repr(C)]` representation
--> ../121757-ice-self-is-struct.rs:20:1
|
20 | struct S {
| ^^^^^^^^ struct `S` defined here
|
note: unnamed field defined here
--> ../121757-ice-self-is-struct.rs:21:5
|
21 | _: str
| ^^^^^^
help: add `#[repr(C)]` to this struct
|
20 + #[repr(C)]
21 | struct S {
|
error: unnamed fields can only have struct or union types
--> ../121757-ice-self-is-struct.rs:21:5
|
21 | _: str
| ^^^^^^
Backtrace
thread 'rustc' panicked at compiler\rustc_hir_analysis\src\collect.rs:797:49:
expect Adt for unnamed field
stack backtrace:
0: 0x7ffdd1bed08b - std::backtrace_rs::backtrace::trace_unsynchronized::h43b35a566376d8c0
1: 0x7ffdd1bb9df6 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h69aa329c1eebdd12
2: 0x7ffdd1bff5fa - core::fmt::write::h43e911a4c8eeaf29
3: 0x7ffdd1be8b31 - std::io::Write::write_fmt::h8014a09f9dbe746f
4: 0x7ffdd1bb9c49 - std::sys_common::backtrace::print::h011c44e7584b6317
5: 0x7ffdd1bb3283 - std::panicking::default_hook::h180ba89712984d0e
6: 0x7ffdd1bb2ffa - std::panicking::default_hook::h180ba89712984d0e
7: 0x7ffd30696e0a - RNvXsL_NtCs6iaOUQgAX4G_5alloc5boxedINtB5_3BoxNCNvCsaaGoLZrJT1T_17rustc_driver_impl16install_ice_hook0EINtNtNtCsjpBzhLK3VS9_4core3ops8function2FnTRDG0_IB1D_TRL1_INtNtNtB1J_5panic10panic_info9PanicInfoL0_EEEp6OutputuNtNtB1J_6marker4SyncNtB3s_4SendEL_RB2z_EE
8: 0x7ffdd1bb36f6 - std::panicking::rust_panic_with_hook::h56cbb5b6fc35c3d1
9: 0x7ffdd1bb63d8 - std::sys_common::backtrace::__rust_end_short_backtrace::he5effd4f04252cad
10: 0x7ffdd1bb62ff - std::sys_common::backtrace::__rust_end_short_backtrace::he5effd4f04252cad
11: 0x7ffdd1bb3366 - rust_begin_unwind
12: 0x7ffdd1c30527 - core::panicking::panic_fmt::h26fb43be4a0382ff
13: 0x7ffdd1c3045c - core::option::expect_failed::h3577c8f3edbefcf8
14: 0x7ffd3295088c - RINvXs0_NtNtNtCsjpBzhLK3VS9_4core4iter8adapters3mapINtB6_3MapINtNtB8_9enumerate9EnumerateINtNtNtBc_5slice4iter4IterNtNtCsef3NXIzrFT9_12rustc_middle2ty8FieldDefEENCNvMNtCs329P7cL7PzQ_11rustc_index5sliceINtB2E_10IndexSliceNtNtCs3QpSQfzdkb7_12rustc_target3ab
15: 0x7ffd3284d89c - <rustc_hir_analysis[45b4dac900b2c2ce]::collect::ItemCtxt as rustc_hir_analysis[45b4dac900b2c2ce]::astconv::AstConv>::set_tainted_by_errors
16: 0x7ffd33a409f1 - rustc_query_impl[41ff65b64ab350b4]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[41ff65b64ab350b4]::query_impl::find_field::dynamic_query::{closure#2}::{closure#0}, rustc_middle[a5e56af6423dad19]::query::erase::Erased<[u8; 4usize]>>
17: 0x7ffd3398407f - rustc_query_impl[41ff65b64ab350b4]::query_impl::check_unsafety::encode_query_results
18: 0x7ffd33ae2ef3 - RINvMs2_NtNtCsebAyhQxexiU_3std6thread5localINtB6_8LocalKeyINtNtCsjpBzhLK3VS9_4core4cell4CellPuEE4withNCINvNtNtNtCsef3NXIzrFT9_12rustc_middle2ty7context3tls13enter_contextNCINvNtNtCs1E54DgIQnXd_18rustc_query_system5query8plumbing20execute_job_non_incrINtCs
19: 0x7ffd33912c3e - RINvNtNtCs1E54DgIQnXd_18rustc_query_system5query8plumbing17try_execute_queryINtCs5FiQgzJqBuW_16rustc_query_impl13DynamicConfigINtNtB4_6caches12DefaultCacheTNtNtCsjXm0eGRgiQS_10rustc_span6def_id5DefIdNtNtB2y_6symbol5IdentEINtNtNtCsef3NXIzrFT9_12rustc_middl
20: 0x7ffd3398d322 - rustc_query_impl[41ff65b64ab350b4]::query_impl::find_field::get_query_non_incr::__rust_end_short_backtrace
21: 0x7ffd325bd587 - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_for_missing_semi
22: 0x7ffd3262b252 - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_expr_kind
23: 0x7ffd325b58d7 - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_expr_coercible_to_type
24: 0x7ffd326292be - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_expr_with_expectation
25: 0x7ffd325d74df - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_decl_initializer
26: 0x7ffd325d7718 - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_decl_initializer
27: 0x7ffd325d7a95 - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_stmt
28: 0x7ffd326f0cf2 - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::with_breakable_ctxt::<<rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_block_with_expected::{closure#0}, ()>
29: 0x7ffd325d7d20 - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_block_no_value
30: 0x7ffd32629d52 - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_expr_kind
31: 0x7ffd325b58d7 - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_expr_coercible_to_type
32: 0x7ffd326292be - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_expr_with_expectation
33: 0x7ffd325b6e8c - <rustc_hir_typeck[40cfaf708e23f80b]::fn_ctxt::FnCtxt>::check_return_expr
34: 0x7ffd327aab3c - rustc_hir_typeck[40cfaf708e23f80b]::check::check_fn
35: 0x7ffd3268eaf2 - rustc_hir_typeck[40cfaf708e23f80b]::typeck_with_fallback::<rustc_hir_typeck[40cfaf708e23f80b]::inspect_typeck::{closure#0}>
36: 0x7ffd3259a33e - rustc_hir_typeck[40cfaf708e23f80b]::primary_body_of
37: 0x7ffd33a5bd2d - rustc_query_impl[41ff65b64ab350b4]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[41ff65b64ab350b4]::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[a5e56af6423dad19]::query::erase::Erased<[u8; 8usize]>>
38: 0x7ffd339605de - rustc_query_impl[41ff65b64ab350b4]::query_impl::promoted_mir::encode_query_results
39: 0x7ffd33ae2a44 - RINvMs2_NtNtCsebAyhQxexiU_3std6thread5localINtB6_8LocalKeyINtNtCsjpBzhLK3VS9_4core4cell4CellPuEE4withNCINvNtNtNtCsef3NXIzrFT9_12rustc_middle2ty7context3tls13enter_contextNCINvNtNtCs1E54DgIQnXd_18rustc_query_system5query8plumbing20execute_job_non_incrINtCs
40: 0x7ffd3392f122 - RINvNtNtCs1E54DgIQnXd_18rustc_query_system5query8plumbing17try_execute_queryINtCs5FiQgzJqBuW_16rustc_query_impl13DynamicConfigINtNtB4_6caches8VecCacheNtNtCsjXm0eGRgiQS_10rustc_span6def_id10LocalDefIdINtNtNtCsef3NXIzrFT9_12rustc_middle5query5erase6ErasedAh
41: 0x7ffd33960fe3 - rustc_query_impl[41ff65b64ab350b4]::query_impl::typeck::get_query_non_incr::__rust_end_short_backtrace
42: 0x7ffd32a2c103 - RINvNtCsebAyhQxexiU_3std9panicking3tryuINtNtNtCsjpBzhLK3VS9_4core5panic11unwind_safe16AssertUnwindSafeNCNCNCINvNtNtNtCs8bTriOcSdES_21rustc_data_structures4sync8parallel7enabled15par_for_each_inRNtNtCsjXm0eGRgiQS_10rustc_span6def_id10LocalDefIdRSB36_NCINvM
43: 0x7ffd32a2b880 - RINvNtCsebAyhQxexiU_3std9panicking3tryuINtNtNtCsjpBzhLK3VS9_4core5panic11unwind_safe16AssertUnwindSafeNCNCNCINvNtNtNtCs8bTriOcSdES_21rustc_data_structures4sync8parallel7enabled15par_for_each_inRNtNtCsjXm0eGRgiQS_10rustc_span6def_id10LocalDefIdRSB36_NCINvM
44: 0x7ffd329fdf32 - RINvMNtNtCs8bTriOcSdES_21rustc_data_structures4sync8parallelNtB3_13ParallelGuard3runuNCNCNCINvNtB3_7enabled15par_for_each_inRNtNtCsjXm0eGRgiQS_10rustc_span6def_id10LocalDefIdRSB1Z_NCINvMs1_NtNtCsef3NXIzrFT9_12rustc_middle3hir3mapNtB31_3Map15par_body_owner
45: 0x7ffd328e9ca2 - RINvNtNtNtCs8bTriOcSdES_21rustc_data_structures4sync8parallel7enabled15par_for_each_inRNtNtCsjXm0eGRgiQS_10rustc_span6def_id10LocalDefIdRSB1n_NCINvMs1_NtNtCsef3NXIzrFT9_12rustc_middle3hir3mapNtB2p_3Map15par_body_ownersNCNvCs5Z2QjRJ4hA0_18rustc_hir_analysi
46: 0x7ffd328196c9 - rustc_hir_analysis[45b4dac900b2c2ce]::check_crate
47: 0x7ffd308032f9 - rustc_interface[3eeae0d001a4b635]::passes::analysis
48: 0x7ffd33a5c15c - rustc_query_impl[41ff65b64ab350b4]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[41ff65b64ab350b4]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[a5e56af6423dad19]::query::erase::Erased<[u8; 1usize]>>
49: 0x7ffd3399955b - rustc_query_impl[41ff65b64ab350b4]::query_impl::instantiate_and_check_impossible_predicates::alloc_self_profile_query_strings
50: 0x7ffd33ae16bd - RINvMs2_NtNtCsebAyhQxexiU_3std6thread5localINtB6_8LocalKeyINtNtCsjpBzhLK3VS9_4core4cell4CellPuEE4withNCINvNtNtNtCsef3NXIzrFT9_12rustc_middle2ty7context3tls13enter_contextNCINvNtNtCs1E54DgIQnXd_18rustc_query_system5query8plumbing20execute_job_non_incrINtCs
51: 0x7ffd338b2f78 - RINvNtNtCs1E54DgIQnXd_18rustc_query_system5query8plumbing17try_execute_queryINtCs5FiQgzJqBuW_16rustc_query_impl13DynamicConfigINtNtB4_6caches11SingleCacheINtNtNtCsef3NXIzrFT9_12rustc_middle5query5erase6ErasedAhj1_EEKb0_KB3s_KB3s_ENtNtB1f_8plumbing9QueryCt
52: 0x7ffd33954ff1 - rustc_query_impl[41ff65b64ab350b4]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
53: 0x7ffd306cd676 - RINvMs2_NtNtCsebAyhQxexiU_3std6thread5localINtB6_8LocalKeyINtNtCsjpBzhLK3VS9_4core4cell4CellPuEE4withNCINvNtNtNtCsef3NXIzrFT9_12rustc_middle2ty7context3tls13enter_contextNCINvMs9_B1I_NtB1I_10GlobalCtxt5enterNCNCNCNvCsaaGoLZrJT1T_17rustc_driver_impl12run_c
54: 0x7ffd306c05ed - <rustc_middle[a5e56af6423dad19]::ty::context::GlobalCtxt>::enter::<rustc_driver_impl[767bba05edafb3bb]::run_compiler::{closure#0}::{closure#1}::{closure#3}, core[e21d7e5d074c18ab]::result::Result<(), rustc_span[e874984deae97828]::ErrorGuaranteed>>
55: 0x7ffd30687b5d - RINvMs5_NtCs5oUjEq15j35_15rustc_interface7queriesNtNtB8_9interface8Compiler5enterNCNCNvCsaaGoLZrJT1T_17rustc_driver_impl12run_compiler0s_0INtNtCsjpBzhLK3VS9_4core6result6ResultINtNtB2h_6option6OptionNtB6_6LinkerENtCsjXm0eGRgiQS_10rustc_span15ErrorGuarante
56: 0x7ffd306a635b - rustc_span[e874984deae97828]::set_source_map::<core[e21d7e5d074c18ab]::result::Result<(), rustc_span[e874984deae97828]::ErrorGuaranteed>, rustc_interface[3eeae0d001a4b635]::interface::run_compiler<core[e21d7e5d074c18ab]::result::Result<(), rustc_span[e874984deae97828]::ErrorGuaranteed>, rustc_driver_impl[767bba05edafb3bb]::run_compiler::{closure#0}>::{closure#0}::{closure#0}>
57: 0x7ffd306cf97b - RINvMs_CsgVCJzdmiPiq_10scoped_tlsINtB5_9ScopedKeyNtCsjXm0eGRgiQS_10rustc_span14SessionGlobalsE3setNCINvNtCs5oUjEq15j35_15rustc_interface4util31run_in_thread_pool_with_globalsNCINvNtB1F_9interface12run_compilerINtNtCsjpBzhLK3VS9_4core6result6ResultuNtBN_15
58: 0x7ffd306a6bf1 - RINvCsjXm0eGRgiQS_10rustc_span27create_session_globals_thenINtNtCsjpBzhLK3VS9_4core6result6ResultuNtB2_15ErrorGuaranteedENCINvNtCs5oUjEq15j35_15rustc_interface4util31run_in_thread_pool_with_globalsNCINvNtB22_9interface12run_compilerBV_NCNvCsaaGoLZrJT1T_17
59: 0x7ffd306c8c28 - RINvNtNtCsebAyhQxexiU_3std10sys_common9backtrace28___rust_begin_short_backtraceNCNCINvNtCs5oUjEq15j35_15rustc_interface4util26run_in_thread_with_globalsNCINvB1m_31run_in_thread_pool_with_globalsNCINvNtB1o_9interface12run_compilerINtNtCsjpBzhLK3VS9_4core6r
60: 0x7ffd3069e909 - RINvNtCsebAyhQxexiU_3std9panicking3tryINtNtCsjpBzhLK3VS9_4core6result6ResultuNtCsjXm0eGRgiQS_10rustc_span15ErrorGuaranteedEINtNtNtBF_5panic11unwind_safe16AssertUnwindSafeNCNCINvMNtB4_6threadNtB2Q_7Builder16spawn_unchecked_NCNCINvNtCs5oUjEq15j35_15rustc_in
61: 0x7ffd306cb7d0 - RINvNtCsebAyhQxexiU_3std6thread5spawnNCNCINvNtCs5oUjEq15j35_15rustc_interface4util31run_in_thread_pool_with_globalsNCINvNtBI_9interface12run_compilerINtNtCsjpBzhLK3VS9_4core6result6ResultuNtCsjXm0eGRgiQS_10rustc_span15ErrorGuaranteedENCNvCsaaGoLZrJT1T_17r
62: 0x7ffdd1be939b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h374ce232189b6f7d
63: 0x7ffdd1beee03 - std::sys::pal::windows::thread::Thread::new::h61d19b62b0a4eb25
64: 0x7ffe7668257d - BaseThreadInitThunk
65: 0x7ffe778eaa68 - RtlUserThreadStart
error: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: please attach the file at `D:\Projects\rust_dev\rustc\rust2\rustc-ice-2024-02-29T13_21_44-21284.txt` to your bug report
query stack during panic:
#0 [find_field] find the index of maybe nested field `f` in `S`
#1 [typeck] type-checking `func`
#2 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 3 previous errorsthread 'rustc' panicked at compiler\rustc_hir_analysis\src\collect.rs:797:49: