264c2013eb
The ExplicitSelf::determine function expects to be able to compare regions. However, when the compare_self_type error reporting code runs we haven't resolved bound regions yet. Thus we replace them with free regions first.
43 lines
1.2 KiB
Rust
43 lines
1.2 KiB
Rust
// Copyright 2018 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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// Regression test for issue #48276 - ICE when self type does not match what is
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// required by a trait and regions are involved.
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trait MyFrom<A> {
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fn from(a: A) -> Self;
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}
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struct A;
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impl<'a, 'b> MyFrom<A> for &'a str {
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fn from(self: &'a Self) -> &'b str {
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//~^ ERROR: method `from` has a `&self` declaration in the impl, but not in the trait
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"asdf"
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}
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}
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struct B;
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impl From<A> for B {
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fn from(&self) -> B {
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//~^ ERROR: method `from` has a `&self` declaration in the impl, but not in the trait
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B
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}
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}
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impl From<A> for &'static str {
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fn from(&self) -> &'static str {
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//~^ ERROR: method `from` has a `&self` declaration in the impl, but not in the trait
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""
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}
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}
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fn main(){}
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