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.
This commit is contained in:
Barosl Lee 2014-12-13 23:22:04 +09:00
parent 95c2ed31ae
commit d9f306757d
2 changed files with 26 additions and 5 deletions

View file

@ -0,0 +1,18 @@
// Copyright 2014 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.
struct Homura;
fn akemi(homura: Homura) {
let Some(ref madoka) = Some(homura.kaname()); //~ ERROR does not implement any method
madoka.clone(); //~ ERROR the type of this value must be known
}
fn main() { }