50 lines
1.3 KiB
Rust
50 lines
1.3 KiB
Rust
#![feature(plugin)]
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#![plugin(clippy)]
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#![allow(unknown_lints, unused, no_effect, redundant_closure_call)]
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#![deny(redundant_closure)]
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fn main() {
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let a = Some(1u8).map(|a| foo(a));
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//~^ ERROR redundant closure found
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//~| HELP remove closure as shown
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//~| SUGGESTION let a = Some(1u8).map(foo);
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meta(|a| foo(a));
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//~^ ERROR redundant closure found
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//~| HELP remove closure as shown
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//~| SUGGESTION meta(foo);
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let c = Some(1u8).map(|a| {1+2; foo}(a));
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//~^ ERROR redundant closure found
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//~| HELP remove closure as shown
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//~| SUGGESTION let c = Some(1u8).map({1+2; foo});
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let d = Some(1u8).map(|a| foo((|b| foo2(b))(a))); //is adjusted?
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all(&[1, 2, 3], &&2, |x, y| below(x, y)); //is adjusted
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unsafe {
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Some(1u8).map(|a| unsafe_fn(a)); // unsafe fn
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}
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// See #515
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let a: Option<Box<::std::ops::Deref<Target = [i32]>>> =
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Some(vec![1i32, 2]).map(|v| -> Box<::std::ops::Deref<Target = [i32]>> { Box::new(v) });
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}
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fn meta<F>(f: F) where F: Fn(u8) {
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f(1u8)
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}
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fn foo(_: u8) {
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}
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fn foo2(_: u8) -> u8 {
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1u8
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}
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fn all<X, F>(x: &[X], y: &X, f: F) -> bool
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where F: Fn(&X, &X) -> bool {
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x.iter().all(|e| f(e, y))
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}
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fn below(x: &u8, y: &u8) -> bool { x < y }
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unsafe fn unsafe_fn(_: u8) { }
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