diff options
Diffstat (limited to 'src/tools/clippy/tests/ui/string_extend.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/string_extend.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/string_extend.rs b/src/tools/clippy/tests/ui/string_extend.rs new file mode 100644 index 000000000..07d0baa1b --- /dev/null +++ b/src/tools/clippy/tests/ui/string_extend.rs @@ -0,0 +1,32 @@ +// run-rustfix + +#[derive(Copy, Clone)] +struct HasChars; + +impl HasChars { + fn chars(self) -> std::str::Chars<'static> { + "HasChars".chars() + } +} + +fn main() { + let abc = "abc"; + let def = String::from("def"); + let mut s = String::new(); + + s.push_str(abc); + s.extend(abc.chars()); + + s.push_str("abc"); + s.extend("abc".chars()); + + s.push_str(&def); + s.extend(def.chars()); + + s.extend(abc.chars().skip(1)); + s.extend("abc".chars().skip(1)); + s.extend(['a', 'b', 'c'].iter()); + + let f = HasChars; + s.extend(f.chars()); +} |