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auto merge of #19690 : barosl/rust/struct-variant-as-a-function-ice, …
…r=alexcrichton Unlike a tuple variant constructor which can be called as a function, a struct variant constructor is not a function, so cannot be called. If the user tries to assign the constructor to a variable, an ICE occurs, because there is no way to use it later. So we should stop the constructor from being used like that. A similar mechanism already exists for a normal struct, as it prohibits a struct from being resolved. This commit does the same for a struct variant. This commit also includes some changes to the existing tests. Fixes #19452.
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// 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. | ||
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enum Homura { | ||
Madoka { age: u32 } | ||
} | ||
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fn main() { | ||
let homura = Homura::Madoka; //~ ERROR uses it like a function | ||
} |