Closed
Description
Hi everyone!
When I was working on solving one of katas from codewars I did something silly. When I was implementing PartialOrd:
impl PartialOrd for Word {
fn partial_cmp(&self, other: &Word) -> Option<Ordering> {
match self.length.cmp(&other.length) {
Greater => Some(Less),
Less => Some(Greater),
Equal => Self(self.format().cmp(&other.format())),
}
}
}instead of writing (yes, now I know that I should just use .partial_cmp() instead of .cmp and then wrapping it into Some)
Some(self.format().cmp(&other.format()))by mistake I wrote:
Self(self.format().cmp(&other.format()))and I received error:
error: internal compiler error: src/librustc/hir/def.rs:267: attempted .def_id() on invalid def: SelfCtor(DefId(0/0:81 ~ codewars[7ad7]::katas[0]::strings_mix[0]::{{impl}}[2]))
thread 'main' panicked at 'Box<Any>', src/librustc_errors/lib.rs:600:9
stack backtrace:
0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
1: std::sys_common::backtrace::_print
2: std::panicking::default_hook::{{closure}}
3: std::panicking::default_hook
4: rustc::util::common::panic_hook
5: std::panicking::rust_panic_with_hook
6: std::panicking::begin_panic
7: rustc_errors::Handler::bug
8: rustc::util::bug::opt_span_bug_fmt::{{closure}}
9: rustc::ty::context::tls::with_opt::{{closure}}
10: rustc::ty::context::tls::with_context_opt
11: rustc::ty::context::tls::with_opt
12: rustc::util::bug::opt_span_bug_fmt
13: rustc::util::bug::bug_fmt
14: rustc::hir::def::Def::def_id::{{closure}}
15: rustc::hir::def::Def::def_id
16: rustc_typeck::check::callee::<impl rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx>>::confirm_builtin_call
17: rustc_typeck::check::FnCtxt::check_expr_kind
18: rustc_typeck::check::FnCtxt::check_expr_with_expectation_and_needs
19: rustc_typeck::check::FnCtxt::check_expr_kind
20: rustc_typeck::check::FnCtxt::check_expr_with_expectation_and_needs
21: rustc_typeck::check::FnCtxt::check_block_with_expected
22: rustc_typeck::check::FnCtxt::check_expr_kind
23: rustc_typeck::check::FnCtxt::check_expr_with_expectation_and_needs
24: rustc_typeck::check::FnCtxt::check_return_expr
25: rustc_typeck::check::check_fn
26: rustc::ty::context::tls::with_related_context
27: rustc::infer::InferCtxtBuilder::enter
28: rustc_typeck::check::typeck_tables_of
29: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::typeck_tables_of<'tcx>>::compute
30: rustc::ty::context::tls::with_context
31: rustc::dep_graph::graph::DepGraph::with_task_impl
32: <rustc::ty::query::plumbing::JobOwner<'a, 'tcx, Q>>::start
33: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
34: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
35: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::ensure_query
36: rustc::session::Session::track_errors
37: rustc_typeck::check::typeck_item_bodies
38: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::typeck_item_bodies<'tcx>>::compute
39: rustc::ty::context::tls::with_context
40: rustc::dep_graph::graph::DepGraph::with_task_impl
41: <rustc::ty::query::plumbing::JobOwner<'a, 'tcx, Q>>::start
42: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
43: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
44: rustc::util::common::time
45: rustc_typeck::check_crate
46: rustc::ty::context::tls::enter_context
47: <std::thread::local::LocalKey<T>>::with
48: rustc::ty::context::TyCtxt::create_and_enter
49: rustc_driver::driver::compile_input
50: rustc_driver::run_compiler_with_pool
51: <scoped_tls::ScopedKey<T>>::set
52: rustc_driver::run_compiler
53: syntax::with_globals
54: __rust_maybe_catch_panic
55: rustc_driver::run
56: rustc_driver::main
57: std::rt::lang_start::{{closure}}
58: std::panicking::try::do_call
59: __rust_maybe_catch_panic
60: std::rt::lang_start_internal
61: main
query stack during panic:
#0 [typeck_tables_of] processing `<katas::strings_mix::Word as std::cmp::PartialOrd>::partial_cmp`
#1 [typeck_item_bodies] type-checking all item bodies
end of query stack
error: aborting due to previous error
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
note: rustc 1.33.0-nightly (96d1334e5 2018-12-14) running on x86_64-apple-darwin
note: compiler flags: -C debuginfo=2 -C incremental
note: some of the compiler flags provided by cargo are hidden
as the error says, I'm opening this issue (even if it's just my silly mistake).