mirror of https://github.com/rust-lang/rust.git
56 lines
918 B
Rust
56 lines
918 B
Rust
#[warn(clippy::string_add)]
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#[allow(clippy::string_add_assign)]
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fn add_only() {
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// ignores assignment distinction
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let mut x = "".to_owned();
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for _ in 1..3 {
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x = x + ".";
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}
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let y = "".to_owned();
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let z = y + "...";
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assert_eq!(&x, &z);
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}
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#[warn(clippy::string_add_assign)]
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fn add_assign_only() {
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let mut x = "".to_owned();
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for _ in 1..3 {
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x = x + ".";
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}
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let y = "".to_owned();
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let z = y + "...";
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assert_eq!(&x, &z);
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}
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#[warn(clippy::string_add, clippy::string_add_assign)]
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fn both() {
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let mut x = "".to_owned();
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for _ in 1..3 {
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x = x + ".";
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}
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let y = "".to_owned();
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let z = y + "...";
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assert_eq!(&x, &z);
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}
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#[allow(clippy::assign_op_pattern)]
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fn main() {
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add_only();
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add_assign_only();
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both();
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// the add is only caught for `String`
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let mut x = 1;
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x = x + 1;
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assert_eq!(2, x);
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}
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