Add UI tests for diagnostics comparing types
They highlight how types are displayed in those cases, and will show how the current output is altered by the next patch.
This commit is contained in:
Mike Hommey
parent
c946c2539e
commit
5336df7e3c
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@ -0,0 +1,86 @@
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// 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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trait Qux {}
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struct A;
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struct B;
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impl Qux for A {}
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impl Qux for B {}
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struct Foo<T, U: Qux = A, V: Qux = B>(T, U, V);
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struct foo;
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struct bar;
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fn want<T>(t: T) {}
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fn have_usize(f: usize) {
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want::<foo>(f); //~ ERROR mismatched types
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want::<bar>(f); //~ ERROR mismatched types
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want::<Foo<usize>>(f); //~ ERROR mismatched types
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want::<Foo<usize, B>>(f); //~ ERROR mismatched types
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want::<Foo<foo>>(f); //~ ERROR mismatched types
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want::<Foo<foo, B>>(f); //~ ERROR mismatched types
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want::<Foo<bar>>(f); //~ ERROR mismatched types
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want::<Foo<bar, B>>(f); //~ ERROR mismatched types
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}
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fn have_foo(f: foo) {
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want::<usize>(f); //~ ERROR mismatched types
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want::<bar>(f); //~ ERROR mismatched types
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want::<Foo<usize>>(f); //~ ERROR mismatched types
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want::<Foo<usize, B>>(f); //~ ERROR mismatched types
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want::<Foo<foo>>(f); //~ ERROR mismatched types
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want::<Foo<foo, B>>(f); //~ ERROR mismatched types
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want::<Foo<bar>>(f); //~ ERROR mismatched types
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want::<Foo<bar, B>>(f); //~ ERROR mismatched types
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}
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fn have_foo_foo(f: Foo<foo>) {
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want::<usize>(f); //~ ERROR mismatched types
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want::<foo>(f); //~ ERROR mismatched types
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want::<bar>(f); //~ ERROR mismatched types
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want::<Foo<usize>>(f); //~ ERROR mismatched types
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want::<Foo<usize, B>>(f); //~ ERROR mismatched types
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want::<Foo<foo, B>>(f); //~ ERROR mismatched types
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want::<Foo<bar>>(f); //~ ERROR mismatched types
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want::<Foo<bar, B>>(f); //~ ERROR mismatched types
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want::<&Foo<foo>>(f); //~ ERROR mismatched types
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want::<&Foo<foo, B>>(f); //~ ERROR mismatched types
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}
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fn have_foo_foo_b(f: Foo<foo, B>) {
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want::<usize>(f); //~ ERROR mismatched types
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want::<foo>(f); //~ ERROR mismatched types
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want::<bar>(f); //~ ERROR mismatched types
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want::<Foo<usize>>(f); //~ ERROR mismatched types
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want::<Foo<usize, B>>(f); //~ ERROR mismatched types
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want::<Foo<foo>>(f); //~ ERROR mismatched types
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want::<Foo<bar>>(f); //~ ERROR mismatched types
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want::<Foo<bar, B>>(f); //~ ERROR mismatched types
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want::<&Foo<foo>>(f); //~ ERROR mismatched types
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want::<&Foo<foo, B>>(f); //~ ERROR mismatched types
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}
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fn have_foo_foo_b_a(f: Foo<foo, B, A>) {
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want::<usize>(f); //~ ERROR mismatched types
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want::<foo>(f); //~ ERROR mismatched types
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want::<bar>(f); //~ ERROR mismatched types
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want::<Foo<usize>>(f); //~ ERROR mismatched types
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want::<Foo<usize, B>>(f); //~ ERROR mismatched types
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want::<Foo<foo>>(f); //~ ERROR mismatched types
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want::<Foo<foo, B>>(f); //~ ERROR mismatched types
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want::<Foo<bar>>(f); //~ ERROR mismatched types
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want::<Foo<bar, B>>(f); //~ ERROR mismatched types
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want::<&Foo<foo>>(f); //~ ERROR mismatched types
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want::<&Foo<foo, B>>(f); //~ ERROR mismatched types
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}
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fn main() {}
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@ -0,0 +1,432 @@
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:25:17
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LL | want::<foo>(f); //~ ERROR mismatched types
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| ^ expected struct `foo`, found usize
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= note: expected type `foo`
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found type `usize`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:26:17
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LL | want::<bar>(f); //~ ERROR mismatched types
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| ^ expected struct `bar`, found usize
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= note: expected type `bar`
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found type `usize`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:27:24
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LL | want::<Foo<usize>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found usize
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= note: expected type `Foo<usize>`
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found type `usize`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:28:27
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LL | want::<Foo<usize, B>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found usize
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= note: expected type `Foo<usize, B>`
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found type `usize`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:29:22
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LL | want::<Foo<foo>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found usize
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= note: expected type `Foo<foo>`
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found type `usize`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:30:25
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LL | want::<Foo<foo, B>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found usize
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= note: expected type `Foo<foo, B>`
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found type `usize`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:31:22
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LL | want::<Foo<bar>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found usize
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= note: expected type `Foo<bar>`
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found type `usize`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:32:25
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LL | want::<Foo<bar, B>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found usize
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= note: expected type `Foo<bar, B>`
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found type `usize`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:36:19
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LL | want::<usize>(f); //~ ERROR mismatched types
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| ^ expected usize, found struct `foo`
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= note: expected type `usize`
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found type `foo`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:37:17
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LL | want::<bar>(f); //~ ERROR mismatched types
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| ^ expected struct `bar`, found struct `foo`
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= note: expected type `bar`
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found type `foo`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:38:24
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LL | want::<Foo<usize>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found struct `foo`
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= note: expected type `Foo<usize>`
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found type `foo`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:39:27
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LL | want::<Foo<usize, B>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found struct `foo`
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= note: expected type `Foo<usize, B>`
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found type `foo`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:40:22
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LL | want::<Foo<foo>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found struct `foo`
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= note: expected type `Foo<foo, A, B>`
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found type `foo`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:41:25
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LL | want::<Foo<foo, B>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found struct `foo`
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= note: expected type `Foo<foo, B, B>`
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found type `foo`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:42:22
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LL | want::<Foo<bar>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found struct `foo`
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= note: expected type `Foo<bar>`
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found type `foo`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:43:25
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LL | want::<Foo<bar, B>>(f); //~ ERROR mismatched types
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| ^ expected struct `Foo`, found struct `foo`
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= note: expected type `Foo<bar, B>`
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found type `foo`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:47:19
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LL | want::<usize>(f); //~ ERROR mismatched types
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| ^ expected usize, found struct `Foo`
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= note: expected type `usize`
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found type `Foo<foo>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:48:17
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LL | want::<foo>(f); //~ ERROR mismatched types
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| ^ expected struct `foo`, found struct `Foo`
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= note: expected type `foo`
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found type `Foo<foo, A, B>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:49:17
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LL | want::<bar>(f); //~ ERROR mismatched types
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| ^ expected struct `bar`, found struct `Foo`
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= note: expected type `bar`
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found type `Foo<foo>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:50:24
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LL | want::<Foo<usize>>(f); //~ ERROR mismatched types
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| ^ expected usize, found struct `foo`
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= note: expected type `Foo<usize, _, _>`
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found type `Foo<foo, _, _>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:51:27
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LL | want::<Foo<usize, B>>(f); //~ ERROR mismatched types
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| ^ expected usize, found struct `foo`
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= note: expected type `Foo<usize, B, _>`
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found type `Foo<foo, A, _>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:52:25
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LL | want::<Foo<foo, B>>(f); //~ ERROR mismatched types
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| ^ expected struct `B`, found struct `A`
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= note: expected type `Foo<_, B, _>`
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found type `Foo<_, A, _>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:53:22
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LL | want::<Foo<bar>>(f); //~ ERROR mismatched types
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| ^ expected struct `bar`, found struct `foo`
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= note: expected type `Foo<bar, _, _>`
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found type `Foo<foo, _, _>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:54:25
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LL | want::<Foo<bar, B>>(f); //~ ERROR mismatched types
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| ^ expected struct `bar`, found struct `foo`
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= note: expected type `Foo<bar, B, _>`
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found type `Foo<foo, A, _>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:55:23
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LL | want::<&Foo<foo>>(f); //~ ERROR mismatched types
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| ^
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| |
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| expected &Foo<foo>, found struct `Foo`
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| help: consider borrowing here: `&f`
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= note: expected type `&Foo<foo>`
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found type `Foo<foo>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:56:26
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LL | want::<&Foo<foo, B>>(f); //~ ERROR mismatched types
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| ^ expected reference, found struct `Foo`
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= note: expected type `&Foo<foo, B>`
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found type `Foo<foo>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:60:19
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LL | want::<usize>(f); //~ ERROR mismatched types
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| ^ expected usize, found struct `Foo`
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= note: expected type `usize`
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found type `Foo<foo, B>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:61:17
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LL | want::<foo>(f); //~ ERROR mismatched types
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| ^ expected struct `foo`, found struct `Foo`
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= note: expected type `foo`
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found type `Foo<foo, B, B>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:62:17
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LL | want::<bar>(f); //~ ERROR mismatched types
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| ^ expected struct `bar`, found struct `Foo`
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= note: expected type `bar`
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found type `Foo<foo, B>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:63:24
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LL | want::<Foo<usize>>(f); //~ ERROR mismatched types
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| ^ expected usize, found struct `foo`
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= note: expected type `Foo<usize, A, _>`
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found type `Foo<foo, B, _>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:64:27
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LL | want::<Foo<usize, B>>(f); //~ ERROR mismatched types
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| ^ expected usize, found struct `foo`
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= note: expected type `Foo<usize, _, _>`
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found type `Foo<foo, _, _>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:65:22
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LL | want::<Foo<foo>>(f); //~ ERROR mismatched types
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| ^ expected struct `A`, found struct `B`
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= note: expected type `Foo<_, A, _>`
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found type `Foo<_, B, _>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:66:22
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LL | want::<Foo<bar>>(f); //~ ERROR mismatched types
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| ^ expected struct `bar`, found struct `foo`
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= note: expected type `Foo<bar, A, _>`
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found type `Foo<foo, B, _>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:67:25
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LL | want::<Foo<bar, B>>(f); //~ ERROR mismatched types
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| ^ expected struct `bar`, found struct `foo`
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= note: expected type `Foo<bar, _, _>`
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found type `Foo<foo, _, _>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:68:23
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LL | want::<&Foo<foo>>(f); //~ ERROR mismatched types
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| ^ expected &Foo<foo>, found struct `Foo`
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= note: expected type `&Foo<foo>`
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found type `Foo<foo, B>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:69:26
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LL | want::<&Foo<foo, B>>(f); //~ ERROR mismatched types
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| ^
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| |
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| expected reference, found struct `Foo`
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| help: consider borrowing here: `&f`
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= note: expected type `&Foo<foo, B>`
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found type `Foo<foo, B>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:73:19
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LL | want::<usize>(f); //~ ERROR mismatched types
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| ^ expected usize, found struct `Foo`
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= note: expected type `usize`
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found type `Foo<foo, B, A>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:74:17
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LL | want::<foo>(f); //~ ERROR mismatched types
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| ^ expected struct `foo`, found struct `Foo`
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= note: expected type `foo`
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found type `Foo<foo, B, A>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:75:17
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LL | want::<bar>(f); //~ ERROR mismatched types
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| ^ expected struct `bar`, found struct `Foo`
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= note: expected type `bar`
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found type `Foo<foo, B, A>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:76:24
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LL | want::<Foo<usize>>(f); //~ ERROR mismatched types
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| ^ expected usize, found struct `foo`
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= note: expected type `Foo<usize, A, B>`
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found type `Foo<foo, B, A>`
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error[E0308]: mismatched types
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--> $DIR/type-mismatch.rs:77:27
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||||
LL | want::<Foo<usize, B>>(f); //~ ERROR mismatched types
|
||||
| ^ expected usize, found struct `foo`
|
||||
|
|
||||
= note: expected type `Foo<usize, _, B>`
|
||||
found type `Foo<foo, _, A>`
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/type-mismatch.rs:78:22
|
||||
|
|
||||
LL | want::<Foo<foo>>(f); //~ ERROR mismatched types
|
||||
| ^ expected struct `A`, found struct `B`
|
||||
|
|
||||
= note: expected type `Foo<_, A, B>`
|
||||
found type `Foo<_, B, A>`
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/type-mismatch.rs:79:25
|
||||
|
|
||||
LL | want::<Foo<foo, B>>(f); //~ ERROR mismatched types
|
||||
| ^ expected struct `B`, found struct `A`
|
||||
|
|
||||
= note: expected type `Foo<_, _, B>`
|
||||
found type `Foo<_, _, A>`
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/type-mismatch.rs:80:22
|
||||
|
|
||||
LL | want::<Foo<bar>>(f); //~ ERROR mismatched types
|
||||
| ^ expected struct `bar`, found struct `foo`
|
||||
|
|
||||
= note: expected type `Foo<bar, A, B>`
|
||||
found type `Foo<foo, B, A>`
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/type-mismatch.rs:81:25
|
||||
|
|
||||
LL | want::<Foo<bar, B>>(f); //~ ERROR mismatched types
|
||||
| ^ expected struct `bar`, found struct `foo`
|
||||
|
|
||||
= note: expected type `Foo<bar, _, B>`
|
||||
found type `Foo<foo, _, A>`
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/type-mismatch.rs:82:23
|
||||
|
|
||||
LL | want::<&Foo<foo>>(f); //~ ERROR mismatched types
|
||||
| ^ expected &Foo<foo>, found struct `Foo`
|
||||
|
|
||||
= note: expected type `&Foo<foo>`
|
||||
found type `Foo<foo, B, A>`
|
||||
|
||||
error[E0308]: mismatched types
|
||||
--> $DIR/type-mismatch.rs:83:26
|
||||
|
|
||||
LL | want::<&Foo<foo, B>>(f); //~ ERROR mismatched types
|
||||
| ^ expected reference, found struct `Foo`
|
||||
|
|
||||
= note: expected type `&Foo<foo, B>`
|
||||
found type `Foo<foo, B, A>`
|
||||
|
||||
error: aborting due to 47 previous errors
|
||||
|
||||
For more information about this error, try `rustc --explain E0308`.
|
||||
Loading…
Reference in New Issue