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Rollup merge of rust-lang#53371 - estebank:tuple, r=nikomatsakis
Do not emit E0277 on incorrect tuple destructured binding Fix rust-lang#50333.
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// Copyright 2018 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
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// Hide irrelevant E0277 errors (#50333) | ||
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trait T {} | ||
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struct A; | ||
impl T for A {} | ||
impl A { | ||
fn new() -> Self { | ||
Self {} | ||
} | ||
} | ||
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fn main() { | ||
let (a, b, c) = (A::new(), A::new()); // This tuple is 2 elements, should be three | ||
//~^ ERROR mismatched types | ||
let ts: Vec<&T> = vec![&a, &b, &c]; | ||
// There is no E0277 error above, as `a`, `b` and `c` are `TyErr` | ||
} |
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error[E0308]: mismatched types | ||
--> $DIR/elide-errors-on-mismatched-tuple.rs:24:9 | ||
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LL | let (a, b, c) = (A::new(), A::new()); // This tuple is 2 elements, should be three | ||
| ^^^^^^^^^ expected a tuple with 2 elements, found one with 3 elements | ||
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= note: expected type `(A, A)` | ||
found type `(_, _, _)` | ||
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error: aborting due to previous error | ||
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For more information about this error, try `rustc --explain E0308`. |