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https://github.com/rust-lang/rust
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45 lines
782 B
Rust
45 lines
782 B
Rust
//@ revisions: curr object_safe_for_dispatch
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#![cfg_attr(object_safe_for_dispatch, feature(object_safe_for_dispatch))]
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use std::rc::Rc;
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trait Foo {
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fn foo(self: &Rc<Self>) -> usize;
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}
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trait Bar {
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fn foo(self: &Rc<Self>) -> usize where Self: Sized;
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fn bar(self: Rc<Self>) -> usize;
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}
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impl Foo for usize {
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fn foo(self: &Rc<Self>) -> usize {
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**self
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}
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}
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impl Bar for usize {
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fn foo(self: &Rc<Self>) -> usize {
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**self
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}
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fn bar(self: Rc<Self>) -> usize {
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*self
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}
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}
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fn make_foo() {
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let x = Rc::new(5usize) as Rc<dyn Foo>;
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//[curr]~^ ERROR E0038
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//[curr]~| ERROR E0038
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//[object_safe_for_dispatch]~^^^ ERROR E0038
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}
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fn make_bar() {
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let x = Rc::new(5usize) as Rc<dyn Bar>;
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x.bar();
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}
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fn main() {}
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