ccaa2f855e
If the infcx has observed other errors, then suppress both default type parameter fallback (which can be unreliable, as the full constraint set is not available) and errors related to unresovled variables (annoyingly, integer type variables cannot currently be unified with error, so that has to be a separate mechanism). Also add a flag to `infcx` to allow us to independently indicate when we have observed an error and hence should trigger this suppression mode.
28 lines
897 B
Rust
28 lines
897 B
Rust
// Copyright 2012 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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// Test that we do not see uninformative region-related errors
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// when we get some basic type-checking failure. See #30580.
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pub struct Foo { a: u32 }
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pub struct Pass<'a, 'tcx: 'a>(&'a mut &'a (), &'a &'tcx ());
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impl<'a, 'tcx> Pass<'a, 'tcx>
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{
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pub fn tcx(&self) -> &'a &'tcx () { self.1 }
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fn lol(&mut self, b: &Foo)
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{
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b.c; //~ ERROR no field with that name was found
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self.tcx();
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}
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}
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fn main() {}
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