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struct MutType;
pub trait MutTrait {
fn function(&mut self)
where
Self: Sized;
}
impl MutTrait for MutType {
fn function(&mut self) {}
}
struct Type;
pub trait Trait {
fn function(&self)
where
Self: Sized;
}
impl Trait for Type {
fn function(&self) {}
}
fn main() {
(&MutType as &dyn MutTrait).function();
//~^ ERROR the `function` method cannot be invoked on `&dyn MutTrait`
//~| HELP you need `&mut dyn MutTrait` instead of `&dyn MutTrait`
(&mut Type as &mut dyn Trait).function();
//~^ ERROR the `function` method cannot be invoked on `&mut dyn Trait`
//~| HELP you need `&dyn Trait` instead of `&mut dyn Trait`
}
|
