Detect type inference failure when auto-dereferencing a pointer
check::autoderef() returns a ty_err when it fails to infer the type.
probe::probe() should respect this failure and fail together to prevent
further corruption.
Call stack: check::check_method_call() -> method::lookup() ->
probe::probe() + confirm::confirm()
Fixes #19692.
Fixes #19583.
Fixes #19297.
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2 changed files with 26 additions and 5 deletions
18
src/test/compile-fail/issue-19692.rs
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src/test/compile-fail/issue-19692.rs
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// 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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struct Homura;
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fn akemi(homura: Homura) {
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let Some(ref madoka) = Some(homura.kaname()); //~ ERROR does not implement any method
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madoka.clone(); //~ ERROR the type of this value must be known
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}
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fn main() { }
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