semicolon-inside-block removes parens breaking code #15380
Description
Using the following flags
--force-warn clippy::semicolon-inside-block
this code:
// run-pass
#![allow(unused_comparisons)]
// Unsigned integer operations
pub fn main() {
0u16;
&mut 0u16;
( &mut 0u16);
( &mut 0u16);
{0;0};
(0u16);
&mut 0u16;
&mut 0u16;
&mut 0u16;
( &mut 0u16);
( &mut 0u16);
&mut 0u16;
0u16;
0u16;
&mut 0u16;
( {0;0});
&mut 0u16;
( &mut 0u16);
// 64-bit numbers have some flakiness yet. Not tested
}caused the following diagnostics:
Checking _11ab917c64e074c178a8d397db450a28703b1a98 v0.1.0 (/tmp/icemaker_global_tempdir.f0JXFBTcO4io/icemaker_clippyfix_tempdir.bWwkAtBDzZyQ/_11ab917c64e074c178a8d397db450a28703b1a98)
warning: consider moving the `;` inside the block for consistent formatting
--> src/main.rs:10:5
|
10 | {0;0};
| ^^^^^^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_inside_block
= note: requested on the command line with `--force-warn clippy::semicolon-inside-block`
help: put the `;` here
|
10 - {0;0};
10 + {0;0;}
|
warning: consider moving the `;` inside the block for consistent formatting
--> src/main.rs:21:5
|
21 | ( {0;0});
| ^^^^^^^^^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_inside_block
help: put the `;` here
|
21 - ( {0;0});
21 + ( {0;0;}
|
warning: `_11ab917c64e074c178a8d397db450a28703b1a98` (bin "_11ab917c64e074c178a8d397db450a28703b1a98") generated 2 warnings (run `cargo clippy --fix --bin "_11ab917c64e074c178a8d397db450a28703b1a98"` to apply 2 suggestions)
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
However after applying these diagnostics, the resulting code:
// run-pass
#![allow(unused_comparisons)]
// Unsigned integer operations
pub fn main() {
0u16;
&mut 0u16;
( &mut 0u16);
( &mut 0u16);
{0;0;}
(0u16);
&mut 0u16;
&mut 0u16;
&mut 0u16;
( &mut 0u16);
( &mut 0u16);
&mut 0u16;
0u16;
0u16;
&mut 0u16;
( {0;0;}
&mut 0u16;
( &mut 0u16);
// 64-bit numbers have some flakiness yet. Not tested
}no longer compiled:
Checking _11ab917c64e074c178a8d397db450a28703b1a98 v0.1.0 (/tmp/icemaker_global_tempdir.f0JXFBTcO4io/icemaker_clippyfix_tempdir.bWwkAtBDzZyQ/_11ab917c64e074c178a8d397db450a28703b1a98)
error: mismatched closing delimiter: `}`
--> src/main.rs:21:5
|
5 | pub fn main() {
| - closing delimiter possibly meant for this
...
21 | ( {0;0;}
| ^ unclosed delimiter
...
26 | }
| ^ mismatched closing delimiter
error: could not compile `_11ab917c64e074c178a8d397db450a28703b1a98` (bin "_11ab917c64e074c178a8d397db450a28703b1a98" test) due to 1 previous error
warning: build failed, waiting for other jobs to finish...
error: could not compile `_11ab917c64e074c178a8d397db450a28703b1a98` (bin "_11ab917c64e074c178a8d397db450a28703b1a98") due to 1 previous error
Version:
rustc 1.90.0-nightly (cc0a5b730 2025-07-31)
binary: rustc
commit-hash: cc0a5b73053c62a3df5f84b3ee85079c9b65fa87
commit-date: 2025-07-31
host: x86_64-unknown-linux-gnu
release: 1.90.0-nightly
LLVM version: 20.1.8