| #![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(); |
| } |