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b3a47d9b6b
This commit desugars the drop and replace deriving from an assignment at MIR build, avoiding the construction of the DropAndReplace terminator (which will be removed in a followign PR) In order to retain the same error messages for replaces a new DesugaringKind::Replace variant is introduced.
28 lines
1.2 KiB
Rust
28 lines
1.2 KiB
Rust
fn test_drop_replace() {
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let b: Box<isize>;
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//~^ HELP consider making this binding mutable
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//~| SUGGESTION mut b
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b = Box::new(1); //~ NOTE first assignment
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b = Box::new(2); //~ ERROR cannot assign twice to immutable variable `b`
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//~| NOTE cannot assign twice to immutable
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//~| NOTE in this expansion of desugaring of drop and replace
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}
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fn test_call() {
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let b = Box::new(1); //~ NOTE first assignment
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//~| HELP consider making this binding mutable
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//~| SUGGESTION mut b
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b = Box::new(2); //~ ERROR cannot assign twice to immutable variable `b`
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//~| NOTE cannot assign twice to immutable
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//~| NOTE in this expansion of desugaring of drop and replace
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}
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fn test_args(b: Box<i32>) { //~ HELP consider making this binding mutable
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//~| SUGGESTION mut b
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b = Box::new(2); //~ ERROR cannot assign to immutable argument `b`
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//~| NOTE cannot assign to immutable argument
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//~| NOTE in this expansion of desugaring of drop and replace
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}
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fn main() {}
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