diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/tools/clippy/tests/ui/no_effect_replace.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/tools/clippy/tests/ui/no_effect_replace.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/no_effect_replace.rs | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/no_effect_replace.rs b/src/tools/clippy/tests/ui/no_effect_replace.rs new file mode 100644 index 000000000..ad17d53f7 --- /dev/null +++ b/src/tools/clippy/tests/ui/no_effect_replace.rs @@ -0,0 +1,51 @@ +#![warn(clippy::no_effect_replace)] + +fn main() { + let _ = "12345".replace('1', "1"); + let _ = "12345".replace("12", "12"); + let _ = String::new().replace("12", "12"); + + let _ = "12345".replacen('1', "1", 1); + let _ = "12345".replacen("12", "12", 1); + let _ = String::new().replacen("12", "12", 1); + + let _ = "12345".replace("12", "22"); + let _ = "12345".replacen("12", "22", 1); + + let mut x = X::default(); + let _ = "hello".replace(&x.f(), &x.f()); + let _ = "hello".replace(&x.f(), &x.ff()); + + let _ = "hello".replace(&y(), &y()); + let _ = "hello".replace(&y(), &z()); + + let _ = Replaceme.replace("a", "a"); +} + +#[derive(Default)] +struct X {} + +impl X { + fn f(&mut self) -> String { + "he".to_string() + } + + fn ff(&mut self) -> String { + "hh".to_string() + } +} + +fn y() -> String { + "he".to_string() +} + +fn z() -> String { + "hh".to_string() +} + +struct Replaceme; +impl Replaceme { + pub fn replace(&mut self, a: &str, b: &str) -> Self { + Self + } +} |