900af2c6d9
This catches the case when a trait defines a default method that calls
itself, but on a type that isn't necessarily `Self`, e.g. there's no
reason that `T = Self` in the following, so the call isn't necessarily
recursive (`T` may override the call).
trait Bar {
fn method<T: Bar>(&self, x: &T) {
x.method(x)
}
}
Fixes #26333.
78 lines
1.7 KiB
Rust
78 lines
1.7 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![deny(unconditional_recursion)]
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#![allow(dead_code)]
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fn foo() { //~ ERROR function cannot return without recurring
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foo(); //~ NOTE recursive call site
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}
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fn bar() {
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if true {
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bar()
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}
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}
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fn baz() { //~ ERROR function cannot return without recurring
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if true {
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baz() //~ NOTE recursive call site
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} else {
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baz() //~ NOTE recursive call site
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}
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}
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fn qux() {
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loop {}
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}
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fn quz() -> bool { //~ ERROR function cannot return without recurring
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if true {
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while quz() {} //~ NOTE recursive call site
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true
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} else {
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loop { quz(); } //~ NOTE recursive call site
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}
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}
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trait Foo {
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fn bar(&self) { //~ ERROR function cannot return without recurring
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self.bar() //~ NOTE recursive call site
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}
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}
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impl Foo for Box<Foo+'static> {
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fn bar(&self) { //~ ERROR function cannot return without recurring
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loop {
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self.bar() //~ NOTE recursive call site
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}
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}
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}
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struct Baz;
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impl Baz {
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fn qux(&self) { //~ ERROR function cannot return without recurring
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self.qux(); //~ NOTE recursive call site
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}
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}
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fn all_fine() {
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let _f = all_fine;
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}
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// issue 26333
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trait Bar {
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fn method<T: Bar>(&self, x: &T) {
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x.method(x)
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}
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}
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fn main() {}
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