println-empty-string chokes on , after arg #16167
Description
Using the following flags
--force-warn clippy::println-empty-string
this code:
fn main() {
println!(
"\
\
",
);
}caused the following diagnostics:
Checking _69a3a7cbaebf801147532861f00082a327b21dd9 v0.1.0 (/tmp/icemaker_global_tempdir.fzTw1TOrsbiL/icemaker_clippyfix_tempdir.SQdN0PQ0vdq3/_69a3a7cbaebf801147532861f00082a327b21dd9)
warning: empty string literal in `println!`
--> src/main.rs:2:5
|
2 | / println!(
3 | |/ "\
4 | || \
5 | || ",
| ||_____________- help: remove the empty string
6 | | );
| |______^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
= note: requested on the command line with `--force-warn clippy::println-empty-string`
warning: `_69a3a7cbaebf801147532861f00082a327b21dd9` (bin "_69a3a7cbaebf801147532861f00082a327b21dd9") generated 1 warning (run `cargo clippy --fix --bin "_69a3a7cbaebf801147532861f00082a327b21dd9" -p _69a3a7cbaebf801147532861f00082a327b21dd9` to apply 1 suggestion)
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
However after applying these diagnostics, the resulting code:
fn main() {
println!(
,
);
}no longer compiled:
Checking _69a3a7cbaebf801147532861f00082a327b21dd9 v0.1.0 (/tmp/icemaker_global_tempdir.fzTw1TOrsbiL/icemaker_clippyfix_tempdir.SQdN0PQ0vdq3/_69a3a7cbaebf801147532861f00082a327b21dd9)
error: expected expression, found `,`
--> src/main.rs:3:9
|
3 | ,
| ^ expected expression
error: could not compile `_69a3a7cbaebf801147532861f00082a327b21dd9` (bin "_69a3a7cbaebf801147532861f00082a327b21dd9") due to 1 previous error
warning: build failed, waiting for other jobs to finish...
error: could not compile `_69a3a7cbaebf801147532861f00082a327b21dd9` (bin "_69a3a7cbaebf801147532861f00082a327b21dd9" test) due to 1 previous error
Version:
rustc 1.93.0-nightly (f40a70d2b 2025-11-30)
binary: rustc
commit-hash: f40a70d2bcd830a4f1f8c7ca1a7f93f1d9d703d6
commit-date: 2025-11-30
host: x86_64-unknown-linux-gnu
release: 1.93.0-nightly
LLVM version: 21.1.5