Closed
Description
auto-reduced (treereduce-rust):
#![feature(const_trait_impl, effects)]
#[const_trait]
trait Bar {
fn bar() -> u8;
}
#[const_trait]
trait Foo {
fn foo() -> u8
where
Self: ~const Bar,
{
<Self as Bar>::bar() * 6
}
}
struct Const;
impl const Bar for Const {
fn bar() -> u8 {
4
}
}
impl const Foo for Const {
fn foo() -> u8
where
Self: ~const Bar,
{
<Self as Bar>::bar() * 6
}
}
fn main() {}
original:
// run-pass
#![feature(const_trait_impl, effects)]
#[const_trait]
trait Bar {
fn bar() -> u8;
}
#[const_trait]
trait Foo {
fn foo() -> u8 where Self: ~const Bar {
<Self as Bar>::bar() * 6
}
}
struct NonConst;
struct Const;
impl Bar for NonConst {
fn bar() -> u8 {
3
}
}
impl Foo for NonConst {}
impl const Bar for Const {
fn bar() -> u8 {
4
}
}
impl const Foo for Const {
fn foo() -> u8 where Self: ~const Bar {
<Self as Bar>::bar() * 6
}
}
fn main() {
const ANS1: u8 = Const::foo();
let ans2 = NonConst::foo();
assert_eq!(ANS1 + ans2, 42);
}Version information
rustc 1.77.0-nightly (87e143089 2024-01-07)
binary: rustc
commit-hash: 87e1430893d55001034bd76c5dbe832d80bc50c3
commit-date: 2024-01-07
host: x86_64-unknown-linux-gnu
release: 1.77.0-nightly
LLVM version: 17.0.6
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc
Program output
error: internal compiler error: no errors encountered even though `span_delayed_bug` issued
error: internal compiler error: no host param id for call in const yet no errors reported
--> /tmp/icemaker_global_tempdir.MkEVVxxd8A0u/rustc_testrunner_tmpdir_reporting.Vb3DcJiRrH2h/mvce.rs:29:15
|
29 | Self: ~const Bar,
| ^^^^^^
|
note: delayed at compiler/rustc_ast_lowering/src/lib.rs:2617:31
0: <rustc_errors::DiagCtxtInner>::emit_diagnostic_without_consuming
1: <rustc_errors::DiagCtxt>::emit_diagnostic_without_consuming
2: <rustc_errors::DiagCtxt>::emit_diagnostic
3: <rustc_errors::DiagCtxt>::span_delayed_bug::<rustc_span::span_encoding::Span, &str>
4: <rustc_ast_lowering::LoweringContext>::lower_qpath
5: <rustc_ast_lowering::LoweringContext>::lower_param_bounds
6: <rustc_ast_lowering::LoweringContext>::lower_where_predicate
7: <rustc_ast_lowering::LoweringContext>::lower_method_sig
8: <rustc_ast_lowering::LoweringContext>::lower_assoc_item
9: <rustc_ast_lowering::item::ItemLowerer>::lower_node
10: rustc_ast_lowering::lower_to_hir
11: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::hir_crate::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
12: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
13: rustc_query_impl::query_impl::hir_crate::get_query_non_incr::__rust_end_short_backtrace
14: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::hir_attrs::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
15: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_hir::hir_id::OwnerId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
16: rustc_query_impl::query_impl::hir_attrs::get_query_non_incr::__rust_end_short_backtrace
17: <rustc_middle::hir::map::Map>::attrs
18: rustc_passes::entry::entry_fn
19: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::entry_fn::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 12]>>
20: <rustc_query_impl::query_impl::entry_fn::dynamic_query::{closure#2} as core::ops::function::FnOnce<(rustc_middle::ty::context::TyCtxt, ())>>::call_once
21: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 12]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
22: rustc_query_impl::query_impl::entry_fn::get_query_non_incr::__rust_end_short_backtrace
23: rustc_interface::passes::analysis
24: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 1]>>
25: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
26: rustc_query_impl::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
27: rustc_interface::interface::run_compiler::<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}
28: std::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>
29: <<std::thread::Builder>::spawn_unchecked_<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
30: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
at /rustc/87e1430893d55001034bd76c5dbe832d80bc50c3/library/alloc/src/boxed.rs:2016:9
31: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
at /rustc/87e1430893d55001034bd76c5dbe832d80bc50c3/library/alloc/src/boxed.rs:2016:9
32: std::sys::unix::thread::Thread::new::thread_start
at /rustc/87e1430893d55001034bd76c5dbe832d80bc50c3/library/std/src/sys/unix/thread.rs:108:17
33: <unknown>
34: <unknown>
--> /tmp/icemaker_global_tempdir.MkEVVxxd8A0u/rustc_testrunner_tmpdir_reporting.Vb3DcJiRrH2h/mvce.rs:29:15
|
29 | Self: ~const Bar,
| ^^^^^^
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: rustc 1.77.0-nightly (87e143089 2024-01-07) running on x86_64-unknown-linux-gnu
query stack during panic:
end of query stack
error: aborting due to 2 previous errors