diff options
Diffstat (limited to 'src/tools/clippy/tests/ui/string_add_assign.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/string_add_assign.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/string_add_assign.rs b/src/tools/clippy/tests/ui/string_add_assign.rs new file mode 100644 index 000000000..644991945 --- /dev/null +++ b/src/tools/clippy/tests/ui/string_add_assign.rs @@ -0,0 +1,21 @@ +// run-rustfix + +#[allow(clippy::string_add, unused)] +#[warn(clippy::string_add_assign)] +fn main() { + // ignores assignment distinction + let mut x = "".to_owned(); + + for _ in 1..3 { + x = x + "."; + } + + let y = "".to_owned(); + let z = y + "..."; + + assert_eq!(&x, &z); + + let mut x = 1; + x = x + 1; + assert_eq!(2, x); +} |