mirror of https://github.com/rust-lang/rust
33 lines
687 B
Rust
33 lines
687 B
Rust
struct MutType;
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pub trait MutTrait {
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fn function(&mut self)
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where
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Self: Sized;
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}
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impl MutTrait for MutType {
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fn function(&mut self) {}
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}
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struct Type;
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pub trait Trait {
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fn function(&self)
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where
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Self: Sized;
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}
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impl Trait for Type {
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fn function(&self) {}
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}
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fn main() {
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(&MutType as &dyn MutTrait).function();
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//~^ ERROR the `function` method cannot be invoked on `&dyn MutTrait`
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//~| HELP you need `&mut dyn MutTrait` instead of `&dyn MutTrait`
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(&mut Type as &mut dyn Trait).function();
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//~^ ERROR the `function` method cannot be invoked on `&mut dyn Trait`
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//~| HELP you need `&dyn Trait` instead of `&mut dyn Trait`
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}
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