3046ac217f
to get the `Sized` error usable, since that hits new users frequently. Further work is needed for the error reporting for non-Sized cycle cases; those currently just fallback to the old path. Also adjust tests.
32 lines
1.2 KiB
Rust
32 lines
1.2 KiB
Rust
// 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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// Test the error message resulting from a cycle in solving `Foo:
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// Sized`. The specifics of the message will of course but the main
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// thing we want to preserve is that:
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//
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// 1. the message should appear attached to one of the structs
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// defined in this file;
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// 2. it should elaborate the steps that led to the cycle.
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struct Baz { q: Option<Foo> }
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struct Foo { q: Option<Baz> }
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//~^ ERROR recursive type `Foo` has infinite size
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//~| type `Foo` is embedded within `core::option::Option<Foo>`...
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//~| ...which in turn is embedded within `core::option::Option<Foo>`...
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//~| ...which in turn is embedded within `Baz`...
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//~| ...which in turn is embedded within `core::option::Option<Baz>`...
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//~| ...which in turn is embedded within `Foo`, completing the cycle.
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impl Foo { fn bar(&self) {} }
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fn main() {}
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