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avoid some &str to String conversions

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This commit is contained in:
Takayuki Maeda 2022-07-10 03:18:56 +09:00
parent fac8fa5672
commit bda83e6543
13 changed files with 23 additions and 34 deletions
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8
compiler/rustc_middle/src/mir/mod.rs
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@ -1929,12 +1929,10 @@ impl BorrowKind {
}
}
pub fn describe_mutability(&self) -> String {
pub fn describe_mutability(&self) -> &str {
match *self {
BorrowKind::Shared | BorrowKind::Shallow | BorrowKind::Unique => {
"immutable".to_string()
}
BorrowKind::Mut { .. } => "mutable".to_string(),
BorrowKind::Shared | BorrowKind::Shallow | BorrowKind::Unique => "immutable",
BorrowKind::Mut { .. } => "mutable",
}
}
}