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#![deny(unused_imports)]
#![allow(dead_code)]
use bar::c::cc as cal;
use std::mem::*; // shouldn't get errors for not using
// everything imported
use std::fmt::{};
//~^ ERROR unused import: `std::fmt::{}`
// Should get errors for both 'Some' and 'None'
use std::option::Option::{Some, None};
//~^ ERROR unused imports: `None`, `Some`
use test::A; //~ ERROR unused import: `test::A`
// Be sure that if we just bring some methods into scope that they're also
// counted as being used.
use test::B;
// But only when actually used: do not get confused by the method with the same name.
use test::B2; //~ ERROR unused import: `test::B2`
// Make sure this import is warned about when at least one of its imported names
// is unused
use test2::{foo, bar}; //~ ERROR unused import: `bar`
mod test2 {
pub fn foo() {}
pub fn bar() {}
}
mod test {
pub trait A { fn a(&self) {} }
pub trait B { fn b(&self) {} }
pub trait B2 { fn b(&self) {} }
pub struct C;
impl A for C {}
impl B for C {}
}
mod foo {
pub struct Point{pub x: isize, pub y: isize}
pub struct Square{pub p: Point, pub h: usize, pub w: usize}
}
mod bar {
// Don't ignore on 'pub use' because we're not sure if it's used or not
pub use std::cmp::PartialEq;
pub struct Square;
pub mod c {
use foo::Point;
use foo::Square; //~ ERROR unused import: `foo::Square`
pub fn cc(_p: Point) -> super::Square {
fn f() -> super::Square {
super::Square
}
f()
}
}
#[allow(unused_imports)]
mod foo {
use std::cmp::PartialEq;
}
}
fn g() {
use self::g; //~ ERROR unused import: `self::g`
//~^ ERROR the item `g` is imported redundantly
fn f() {
self::g();
}
}
// cf. issue #35135.
#[allow(unused_variables)]
fn h() {
use test2::foo; //~ ERROR unused import: `test2::foo`
//~^ ERROR the item `foo` is imported redundantly
let foo = 0;
}
fn main() {
cal(foo::Point{x:3, y:9});
let mut a = 3;
let mut b = 4;
swap(&mut a, &mut b);
test::C.b();
let _a = foo();
}
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