rust/tests/ui/imports/enum-variant-import-path-15774.rs

//! Regression test for https://github.com/rust-lang/rust/issues/15774

//@ edition: 2015
//@ run-pass

#![deny(warnings)]
#![allow(unused_imports)]

pub enum Foo { A }
mod bar {
    pub fn normal(x: ::Foo) {
        use Foo::A;
        match x {
            A => {}
        }
    }
    pub fn wrong(x: ::Foo) {
        match x {
            ::Foo::A => {}
        }
    }
}

pub fn main() {
    bar::normal(Foo::A);
    bar::wrong(Foo::A);
}
comments 2025-07-24 19:07:20 +05:00			`//! Regression test for https://github.com/rust-lang/rust/issues/15774`

Add missing 2015 edition directives These tests specifically test 2015 edition behavior, so ensure that they can only be run with this edition 2025-06-03 09:54:30 +02:00			`//@ edition: 2015`
Add `// run-pass` annotations to all the tests under `ui/run-pass/`. (I may have accidentally added it to some auxilliary crates as well; my emacs-macro-based methodology was pretty crude.) 2018-08-30 14:18:55 +02:00			`//@ run-pass`
rustdoc: Replace no-pretty-expanded with pretty-expanded Now that features must be declared expanded source often does not compile. This adds 'pretty-expanded' to a bunch of test cases that still work. 2015-03-22 13:13:15 -07:00
Parser: Global single-segment paths should be represented as PatEnum Fixed #15774. 2014-07-21 18:47:24 +02:00			`#![deny(warnings)]`
			`#![allow(unused_imports)]`

Fix private module loophole in the 'private type in public item' check 2015-03-12 10:44:56 +13:00			`pub enum Foo { A }`
Parser: Global single-segment paths should be represented as PatEnum Fixed #15774. 2014-07-21 18:47:24 +02:00			`mod bar {`
			`pub fn normal(x: ::Foo) {`
Switch to purely namespaced enums This breaks code that referred to variant names in the same namespace as their enum. Reexport the variants in the old location or alter code to refer to the new locations: ``` pub enum Foo { A, B } fn main() { let a = A; } ``` => ``` pub use self::Foo::{A, B}; pub enum Foo { A, B } fn main() { let a = A; } ``` or ``` pub enum Foo { A, B } fn main() { let a = Foo::A; } ``` [breaking-change] 2014-11-06 00:05:53 -08:00			`use Foo::A;`
Parser: Global single-segment paths should be represented as PatEnum Fixed #15774. 2014-07-21 18:47:24 +02:00			`match x {`
			`A => {}`
			`}`
			`}`
			`pub fn wrong(x: ::Foo) {`
			`match x {`
Switch to purely namespaced enums This breaks code that referred to variant names in the same namespace as their enum. Reexport the variants in the old location or alter code to refer to the new locations: ``` pub enum Foo { A, B } fn main() { let a = A; } ``` => ``` pub use self::Foo::{A, B}; pub enum Foo { A, B } fn main() { let a = A; } ``` or ``` pub enum Foo { A, B } fn main() { let a = Foo::A; } ``` [breaking-change] 2014-11-06 00:05:53 -08:00			`::Foo::A => {}`
Parser: Global single-segment paths should be represented as PatEnum Fixed #15774. 2014-07-21 18:47:24 +02:00			`}`
			`}`
			`}`

			`pub fn main() {`
Switch to purely namespaced enums This breaks code that referred to variant names in the same namespace as their enum. Reexport the variants in the old location or alter code to refer to the new locations: ``` pub enum Foo { A, B } fn main() { let a = A; } ``` => ``` pub use self::Foo::{A, B}; pub enum Foo { A, B } fn main() { let a = A; } ``` or ``` pub enum Foo { A, B } fn main() { let a = Foo::A; } ``` [breaking-change] 2014-11-06 00:05:53 -08:00			`bar::normal(Foo::A);`
			`bar::wrong(Foo::A);`
Parser: Global single-segment paths should be represented as PatEnum Fixed #15774. 2014-07-21 18:47:24 +02:00			`}`