ice: entered unreachabe code

[matthiaskrgr]

struct S(u8, (u8, u8));

fn main() {
    let s = S(0, (0, 0));
    s.1e1; //~ ERROR no field `1e1` on type `S`
}

rust-analyzer symbols < ./fixed/float-field.rs

thread 'main' panicked at crates/parser/src/shortcuts.rs:218:21:
internal error: entered unreachable code
stack backtrace:
   0:     0x7fb9307e7806 - std::backtrace_rs::backtrace::libunwind::trace::hccd39fe91d56daec
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
   1:     0x7fb9307e7806 - std::backtrace_rs::backtrace::trace_unsynchronized::hb9c211c184511b77
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fb9307e7806 - std::sys_common::backtrace::_print_fmt::ha68911449431f29f
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/sys_common/backtrace.rs:68:5
   3:     0x7fb9307e7806 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h34c6aa4d9ef2549f
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fb930839f00 - core::fmt::rt::Argument::fmt::h97f0cd02ba3737ef
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/core/src/fmt/rt.rs:142:9
   5:     0x7fb930839f00 - core::fmt::write::heb4624e14e98aea7
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/core/src/fmt/mod.rs:1120:17
   6:     0x7fb9307db15f - std::io::Write::write_fmt::h25504a918ea5c052
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/io/mod.rs:1810:15
   7:     0x7fb9307e75e4 - std::sys_common::backtrace::_print::h16efe88e7fa25a23
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7fb9307e75e4 - std::sys_common::backtrace::print::h4f2dda7c938219d4
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7fb9307ea377 - std::panicking::default_hook::{{closure}}::hdfd96bdc522bbb15
  10:     0x7fb9307ea0d9 - std::panicking::default_hook::hf1cac0ca04453e02
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/panicking.rs:292:9
  11:     0x7fb9307ea938 - std::panicking::rust_panic_with_hook::hd39b254275236486
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/panicking.rs:779:13
  12:     0x7fb9307ea7d9 - std::panicking::begin_panic_handler::{{closure}}::h5bbe5cb47793ee20
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/panicking.rs:649:13
  13:     0x7fb9307e7d06 - std::sys_common::backtrace::__rust_end_short_backtrace::h464decb1e79e1351
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/sys_common/backtrace.rs:171:18
  14:     0x7fb9307ea570 - rust_begin_unwind
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/panicking.rs:645:5
  15:     0x7fb930836605 - core::panicking::panic_fmt::h679166b76d3d88f6
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/core/src/panicking.rs:72:14
  16:     0x7fb9308366c3 - core::panicking::panic::h63af6af8832e6e11
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/core/src/panicking.rs:144:5
  17:     0x555fe99ab377 - <parser[7b20a0df5f7d490f]::lexed_str::LexedStr>::intersperse_trivia
  18:     0x555fe99389a3 - syntax[93f6c363a9c02f46]::parsing::build_tree
  19:     0x555fe997b414 - <syntax[93f6c363a9c02f46]::ast::generated::nodes::SourceFile>::parse
  20:     0x555fe990f1dd - <base_db[ccb70c7332b7862c]::ParseQuery as salsa[1f70372cff72ab3f]::plumbing::QueryFunction>::execute
  21:     0x555fe98fb277 - <salsa[1f70372cff72ab3f]::derived::slot::Slot<base_db[ccb70c7332b7862c]::ParseQuery, salsa[1f70372cff72ab3f]::derived::AlwaysMemoizeValue>>::execute
  22:     0x555fe990dac9 - <_ as base_db[ccb70c7332b7862c]::SourceDatabase>::parse::__shim
  23:     0x555fe8e5b59d - <ide[c84991b3490e4885]::Analysis>::file_structure
  24:     0x555fe8ad401a - <rust_analyzer[1d698c3afe0c2f30]::cli::flags::Symbols>::run
  25:     0x555fe8979cbe - rust_analyzer[ea83a2a0fbc63401]::main
  26:     0x555fe8908b33 - std[4bc72880d5231e4c]::sys_common::backtrace::__rust_begin_short_backtrace::<fn() -> core[25a4dcbb3cee7009]::result::Result<(), anyhow[63f90c604b8a6a8d]::Error>, core[25a4dcbb3cee7009]::result::Result<(), anyhow[63f90c604b8a6a8d]::Error>>
  27:     0x555fe89659cd - std[4bc72880d5231e4c]::rt::lang_start::<core[25a4dcbb3cee7009]::result::Result<(), anyhow[63f90c604b8a6a8d]::Error>>::{closure#0}
  28:     0x7fb9307cba01 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hc6b0dae8727a4153
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/core/src/ops/function.rs:284:13
  29:     0x7fb9307cba01 - std::panicking::try::do_call::hea61ab072ac41e8e
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/panicking.rs:552:40
  30:     0x7fb9307cba01 - std::panicking::try::h5c21571bdf7e08ad
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/panicking.rs:516:19
  31:     0x7fb9307cba01 - std::panic::catch_unwind::h682719196f0777aa
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/panic.rs:142:14
  32:     0x7fb9307cba01 - std::rt::lang_start_internal::{{closure}}::hac3ffec90ad839c4
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/rt.rs:148:48
  33:     0x7fb9307cba01 - std::panicking::try::do_call::h1791f2ae1fcf40e6
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/panicking.rs:552:40
  34:     0x7fb9307cba01 - std::panicking::try::h4626756b2e85d8cd
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/panicking.rs:516:19
  35:     0x7fb9307cba01 - std::panic::catch_unwind::hae97474d5de51d0e
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/panic.rs:142:14
  36:     0x7fb9307cba01 - std::rt::lang_start_internal::h5018c9c91a53da4f
                               at /rustc/595bc6f00369475047538fdae1ff8cea692ac385/library/std/src/rt.rs:148:20
  37:     0x555fe897fa75 - main
  38:     0x7fb92a52ecd0 - <unknown>
  39:     0x7fb92a52ed8a - __libc_start_main
  40:     0x555fe88f88b9 - <unknown>
  41:                0x0 - <unknown>

rust-analyzer 1.77.0-nightly (595bc6f 2024-01-05)

[lnicola]

Better backtrace:

   0: rust_begin_unwind
             at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5
   1: core::panicking::panic_fmt
             at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14
   2: core::panicking::panic
             at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:144:5
   3: parser::shortcuts::Builder::float_split
   4: parser::shortcuts::<impl parser::lexed_str::LexedStr>::intersperse_trivia
   5: syntax::parsing::build_tree
   6: syntax::parsing::parse_text
   7: syntax::<impl syntax::ast::generated::nodes::SourceFile>::parse
   8: <base_db::ParseQuery as salsa::plumbing::QueryFunction>::execute
   9: salsa::Cycle::catch
  10: salsa::derived::slot::Slot<Q,MP>::execute
  11: salsa::derived::slot::Slot<Q,MP>::read
  12: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::fetch
  13: <DB as base_db::SourceDatabase>::parse::__shim
  14: ide_diagnostics::diagnostics
  15: salsa::Cancelled::catch
  16: ide::Analysis::diagnostics
  17: core::ops::function::impls::<impl core::ops::function::FnMut<A> for &mut F>::call_mut
  18: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter
  19: rust_analyzer::diagnostics::fetch_native_diagnostics

[matthiaskrgr]

smaller repro:

fn main() {
    s.1e1;
}