thread 'main' panicked at 'bad span: .: ``', src/tools/rustfmt/src/source_map.rs:52:13 #5716
Description
#[derive(Debug)]
struct S(String);
#[derive(Debug)]
struct T(S);
fn no_ref_nested() {
let mut t = T(S());
let c = || {
println!("{:?}", t.0);
let mut c = move || {
t.0.10i32 = "new S".into();
println!("{:?}", t.0.0);
};
c();
};
c();
}
fn main() {
no_ref_nested();
}warning: suffixes on a tuple index are invalid
--> /tmp/im/2F2289E79BEA4CD52EB15181FD6F33470C0267578597C72C401DEA25348F0F1B.rs:13:15
|
13 | t.0.10i32 = "new S".into();
| ^^^^^^^ invalid suffix `i32`
|
= help: `i32` is *temporarily* accepted on tuple index fields as it was incorrectly accepted on stable for a few releases
= help: on proc macros, you'll want to use `syn::Index::from` or `proc_macro::Literal::*_unsuffixed` for code that will desugar to tuple field access
= help: see issue #60210 <https://github.com/rust-lang/rust/issues/60210> for more information
thread 'main' panicked at 'bad span: `.`: ``', src/tools/rustfmt/src/source_map.rs:52:13
stack backtrace:
0: rust_begin_unwind
at /rustc/ab654863c3d50482f260cf862647f1fe0ff5e010/library/std/src/panicking.rs:579:5
1: core::panicking::panic_fmt
at /rustc/ab654863c3d50482f260cf862647f1fe0ff5e010/library/core/src/panicking.rs:64:14
2: <rustfmt_nightly::visitor::SnippetProvider as rustfmt_nightly::source_map::SpanUtils>::span_before
3: rustfmt_nightly::chains::rewrite_chain
4: rustfmt_nightly::expr::format_expr
5: rustfmt_nightly::expr::rewrite_assignment
6: rustfmt_nightly::expr::format_expr
7: rustfmt_nightly::stmt::format_stmt
8: <rustfmt_nightly::visitor::FmtVisitor>::walk_stmts
9: <rustfmt_nightly::visitor::FmtVisitor>::visit_block
10: rustfmt_nightly::expr::rewrite_block_with_visitor
11: rustfmt_nightly::expr::rewrite_block
12: rustfmt_nightly::expr::format_expr
13: rustfmt_nightly::closures::rewrite_closure_expr
14: rustfmt_nightly::closures::rewrite_closure
15: rustfmt_nightly::expr::format_expr
16: rustfmt_nightly::expr::rewrite_assign_rhs_expr::<rustc_ast::ast::Expr>
17: rustfmt_nightly::expr::rewrite_assign_rhs_with::<alloc::string::String, rustc_ast::ast::Expr>
18: <rustc_ast::ast::Local as rustfmt_nightly::rewrite::Rewrite>::rewrite
19: rustfmt_nightly::stmt::format_stmt
20: <rustfmt_nightly::visitor::FmtVisitor>::walk_stmts
21: <rustfmt_nightly::visitor::FmtVisitor>::walk_stmts
22: <rustfmt_nightly::visitor::FmtVisitor>::visit_block
23: rustfmt_nightly::expr::rewrite_block_with_visitor
24: rustfmt_nightly::expr::rewrite_block
25: rustfmt_nightly::expr::format_expr
26: rustfmt_nightly::closures::rewrite_closure_expr
27: rustfmt_nightly::closures::rewrite_closure
28: rustfmt_nightly::expr::format_expr
29: rustfmt_nightly::expr::rewrite_assign_rhs_expr::<rustc_ast::ast::Expr>
30: rustfmt_nightly::expr::rewrite_assign_rhs_with::<alloc::string::String, rustc_ast::ast::Expr>
31: <rustc_ast::ast::Local as rustfmt_nightly::rewrite::Rewrite>::rewrite
32: rustfmt_nightly::stmt::format_stmt
33: <rustfmt_nightly::visitor::FmtVisitor>::walk_stmts
34: <rustfmt_nightly::visitor::FmtVisitor>::walk_stmts
35: <rustfmt_nightly::visitor::FmtVisitor>::visit_block
36: <rustfmt_nightly::visitor::FmtVisitor>::visit_fn
37: <rustfmt_nightly::visitor::FmtVisitor>::visit_item
38: <rustfmt_nightly::visitor::FmtVisitor>::visit_items_with_reordering
39: <rustfmt_nightly::visitor::FmtVisitor>::walk_mod_items
40: <rustfmt_nightly::visitor::FmtVisitor>::format_separate_mod
41: rustfmt_nightly::formatting::format_project::<rustfmt_nightly::Session<std::io::stdio::Stdout>>
42: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::with::<<rustfmt_nightly::Session<std::io::stdio::Stdout>>::format_input_inner::{closure#0}, core::result::Result<rustfmt_nightly::FormatReport, rustfmt_nightly::ErrorKind>>
43: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_span::create_session_if_not_set_then<core::result::Result<rustfmt_nightly::FormatReport, rustfmt_nightly::ErrorKind>, <rustfmt_nightly::Session<std::io::stdio::Stdout>>::format_input_inner::{closure#0}>::{closure#0}, core::result::Result<rustfmt_nightly::FormatReport, rustfmt_nightly::ErrorKind>>
44: <rustfmt_nightly::Session<std::io::stdio::Stdout>>::format
45: rustfmt::format_and_emit_report::<std::io::stdio::Stdout>
46: <rustfmt_nightly::Session<std::io::stdio::Stdout>>::override_config::<rustfmt::format::{closure#0}, ()>
47: rustfmt::execute
48: rustfmt::main
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
rustfmt 1.5.2-nightly (ab65486 2023-03-15)
bad_span.zip