Closed
Description
Code
extern "C" {
fn f(){;
fn g();
}Meta
rustc --version --verbose:
rustc 1.44.1 (c7087fe00 2020-06-17)
binary: rustc
commit-hash: c7087fe00d2ba919df1d813c040a5d47e43b0fe7
commit-date: 2020-06-17
host: x86_64-pc-windows-msvc
release: 1.44.1
LLVM version: 9.0
Also occurs on nightly at https://play.rust-lang.org/?version=nightly&mode=debug&edition=2018&gist=b87d0d902d835c40f300071f4976ee62
Error output
Compiling playground v0.0.1 (/playground)
error: this file contains an unclosed delimiter
--> src/lib.rs:4:3
|
1 | extern "C" {
| - unclosed delimiter
2 | fn f(){;
| - this delimiter might not be properly closed...
3 | fn g();
4 | }
| - ^
| |
| ...as it matches this but it has different indentation
error: incorrect function inside `extern` block
--> src/lib.rs:2:8
|
1 | extern "C" {
| ---------- `extern` blocks define existing foreign functions and functions inside of them cannot have a body
2 | fn f(){;
| ________^__-
| | |
| | cannot have a body
3 | | fn g();
4 | | }
| |_- help: remove the invalid body: `;`
|
= help: you might have meant to write a function accessible through FFI, which can be done by writing `extern fn` outside of the `extern` block
= note: for more information, visit https://doc.rust-lang.org/std/keyword.extern.html
error: free function without a body
--> src/lib.rs:3:5
|
3 | fn g();
| ^^^^^^-
| |
| help: provide a definition for the function: `{ <body> }`
warning: unnecessary trailing semicolon
--> src/lib.rs:2:12
|
2 | fn f(){;
| ^ help: remove this semicolon
|
= note: `#[warn(redundant_semicolons)]` on by default
thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', src/librustc_middle/hir/map/collector.rs:155:31
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
error: internal compiler error: unexpected panic
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 1.44.1 (c7087fe00 2020-06-17) running on x86_64-unknown-linux-gnu
note: compiler flags: -C codegen-units=1 -C debuginfo=2 --crate-type lib
note: some of the compiler flags provided by cargo are hidden
error: aborting due to 3 previous errors; 1 warning emitted
error: could not compile `playground`.
To learn more, run the command again with --verbose.
Backtrace
thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', src\librustc_middle\hir\map\collector.rs:155:31
stack backtrace:
0: 0x7fff11089bdf - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h72e337a2cec56afc
1: 0x7fff110b747b - core::fmt::write::h301a11378dba5c10
2: 0x7fff1107a3ac - <std::io::IoSliceMut as core::fmt::Debug>::fmt::h9e4d180d084072c2
3: 0x7fff1108f1fc - std::panicking::take_hook::h1017141a1333a573
4: 0x7fff1108ee3f - std::panicking::take_hook::h1017141a1333a573
5: 0x7ffeb1e9d61a - rustc_driver::report_ice::h3f0dba12da2a5809
6: 0x7fff1108fa98 - std::panicking::rust_panic_with_hook::h43d41cd5d682c22d
7: 0x7fff1108f5ef - rust_begin_unwind
8: 0x7fff110b3ed0 - core::panicking::panic_fmt::h7623003454911b6c
9: 0x7fff110b3e1c - core::panicking::panic::hb5a07a26965dd7fe
10: 0x7ffeb578da46 - ZN12rustc_middle2ty111_DERIVE_rustc_data_structures_stable_hasher_HashStable_rustc_middle_ich_StableHashingContext_ctx_FOR_SymbolName159_$LT$impl$u20$rustc_data_structures..stable_hasher..HashStable$LT$rustc_middle..ich..hcx..StableHashingContext$GT$$u20$
11: 0x7ffeb57bdd69 - <rustc_middle::hir::map::Map as rustc_hir::intravisit::Map>::impl_item::h29a5725cef6a6bc2
12: 0x7ffeb56476e6 - rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::debug_node::ha0b2381c3958984f
13: 0x7ffeb5ac3f6e - <rustc_middle::ty::sty::TypeAndMut as core::fmt::Debug>::fmt::h14510a0c43efcc1f
14: 0x7ffeb5a111aa - <rustc_middle::ty::sty::TypeAndMut as core::fmt::Debug>::fmt::h14510a0c43efcc1f
15: 0x7ffeb56c7a01 - <rustc_middle::ty::cast::CastKind as core::fmt::Debug>::fmt::h90b142d735531df6
16: 0x7ffeb56476e6 - rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::debug_node::ha0b2381c3958984f
17: 0x7ffeb5ab16ad - <rustc_middle::ty::sty::TypeAndMut as core::fmt::Debug>::fmt::h14510a0c43efcc1f
18: 0x7ffeb59e634e - <rustc_middle::ty::sty::TypeAndMut as core::fmt::Debug>::fmt::h14510a0c43efcc1f
19: 0x7ffeb57bb305 - rustc_middle::hir::map::Map::expect_item::h4affa69e9dd72ff8
20: 0x7ffeb463f102 - <rustc_passes::upvars::CaptureCollector as rustc_hir::intravisit::Visitor>::visit_expr::hd6e55112cd082a96
21: 0x7ffeb45b2994 - rustc_passes::hir_id_validator::check_crate::hc754549cd5db125d
22: 0x7ffeb2198782 - rustc_interface::passes::QueryContext::print_stats::h6d9e7b3318b13f88
23: 0x7ffeb1eb265b - rustc_errors::snippet::MultilineAnnotation::increase_depth::hc7cbc289ff11bb9b
24: 0x7ffeb202abb6 - rustc_driver::pretty::print_after_hir_lowering::h0533888ff42872ae
25: 0x7ffeb2017a43 - rustc_driver::pretty::print_after_hir_lowering::h0533888ff42872ae
26: 0x7ffeb1eb7192 - rustc_errors::snippet::MultilineAnnotation::increase_depth::hc7cbc289ff11bb9b
27: 0x7ffeb205976e - rustc_driver::pretty::print_after_hir_lowering::h0533888ff42872ae
28: 0x7ffeb202cccd - rustc_driver::pretty::print_after_hir_lowering::h0533888ff42872ae
29: 0x7ffeb1ea647e - <rustc_middle::ty::instance::InstanceDef as rustc_middle::ty::query::keys::Key>::query_crate::hfbc139b7b5e8d887
30: 0x7ffeb1ea3099 - <rustc_middle::ty::instance::InstanceDef as rustc_middle::ty::query::keys::Key>::query_crate::hfbc139b7b5e8d887
31: 0x7ffeb1eab934 - rustc_errors::snippet::MultilineAnnotation::increase_depth::hc7cbc289ff11bb9b
32: 0x7ffeb2031193 - rustc_driver::pretty::print_after_hir_lowering::h0533888ff42872ae
33: 0x7fff1109f222 - std::sys::windows::thread::Thread::new::he0eea534f2b6df4d
34: 0x7fff4f357bd4 - BaseThreadInitThunk
35: 0x7fff4f64ce51 - RtlUserThreadStart
error: internal compiler error: unexpected panic
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 1.44.1 (c7087fe00 2020-06-17) running on x86_64-pc-windows-msvc
note: compiler flags: -C debuginfo=2 -C incremental --crate-type bin
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
#0 [index_hir] index HIR
#1 [hir_owner] HIR owner of `{{misc}}#0`
#2 [analysis] running analysis passes on this crate
end of query stack
This issue has been assigned to @ayazhafiz via this comment.