1d99d37f87
Previously, Rebuilder did not visit type parameters when rebuilding generics and path, so in some cases the suggestion turns out to be erroneous.
70 lines
2.7 KiB
Rust
70 lines
2.7 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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// ignore-tidy-linelength
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struct Foo<'x> { bar: int }
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fn foo1(x: &Foo) -> &int {
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//~^ NOTE: consider using an explicit lifetime parameter as shown: fn foo1<'a>(x: &'a Foo) -> &'a int
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&x.bar //~ ERROR: cannot infer
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}
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fn foo2<'a, 'b>(x: &'a Foo) -> &'b int {
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//~^ NOTE: consider using an explicit lifetime parameter as shown: fn foo2<'c>(x: &'c Foo) -> &'c int
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&x.bar //~ ERROR: cannot infer
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}
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fn foo3(x: &Foo) -> (&int, &int) {
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//~^ NOTE: consider using an explicit lifetime parameter as shown: fn foo3<'a>(x: &'a Foo) -> (&'a int, &'a int)
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(&x.bar, &x.bar) //~ ERROR: cannot infer
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//~^ ERROR: cannot infer
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}
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fn foo4<'a, 'b>(x: &'a Foo) -> (&'b int, &'a int, &int) {
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//~^ NOTE: consider using an explicit lifetime parameter as shown: fn foo4<'c>(x: &'c Foo) -> (&'c int, &'c int, &'c int)
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(&x.bar, &x.bar, &x.bar) //~ ERROR: cannot infer
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//~^ ERROR: cannot infer
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}
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fn foo5(x: &int) -> &int {
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//~^ NOTE: consider using an explicit lifetime parameter as shown: fn foo5<'a>(x: &'a int) -> &'a int
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x //~ ERROR: mismatched types
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//~^ ERROR: cannot infer
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}
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struct Bar<'x, 'y, 'z> { bar: &'y int, baz: int }
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fn bar1(x: &Bar) -> (&int, &int, &int) {
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//~^ NOTE: consider using an explicit lifetime parameter as shown: fn bar1<'a, 'b, 'c, 'd>(x: &'d Bar<'b, 'a, 'c>) -> (&'a int, &'d int, &'d int)
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(x.bar, &x.baz, &x.baz) //~ ERROR: mismatched types
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//~^ ERROR: cannot infer
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//~^^ ERROR: cannot infer
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}
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fn bar2<'a, 'b, 'c>(x: &Bar<'a, 'b, 'c>) -> (&int, &int, &int) {
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//~^ NOTE: consider using an explicit lifetime parameter as shown: fn bar2<'d, 'e, 'a, 'c>(x: &'e Bar<'a, 'd, 'c>) -> (&'d int, &'e int, &'e int)
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(x.bar, &x.baz, &x.baz) //~ ERROR: mismatched types
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//~^ ERROR: cannot infer
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//~^^ ERROR: cannot infer
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}
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struct Cat<'x, T> { cat: &'x int, t: T }
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struct Dog<'y> { dog: &'y int }
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fn cat<'x>(x: Cat<'x, Dog>) -> &int {
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//~^ NOTE: consider using an explicit lifetime parameter as shown: fn cat<'a, 'x>(x: Cat<'x, Dog<'a>>) -> &'a int
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x.t.dog //~ ERROR: mismatched types
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}
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fn cat2<'x, 'y>(x: Cat<'x, Dog<'y>>) -> &int {
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//~^ NOTE: consider using an explicit lifetime parameter as shown: fn cat2<'a, 'x>(x: Cat<'x, Dog<'a>>) -> &'a int
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x.t.dog //~ ERROR: mismatched types
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}
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fn main() {}
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