mirror of https://github.com/rust-lang/rust.git
73 lines
1.7 KiB
Rust
73 lines
1.7 KiB
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(
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unused,
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clippy::no_effect,
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clippy::redundant_closure_call,
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clippy::many_single_char_names,
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clippy::needless_pass_by_value,
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clippy::option_map_unit_fn,
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clippy::trivially_copy_pass_by_ref
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)]
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#![warn(clippy::redundant_closure, clippy::needless_borrow)]
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fn main() {
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let a = Some(1u8).map(|a| foo(a));
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meta(|a| foo(a));
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let c = Some(1u8).map(|a| {1+2; foo}(a));
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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 #815
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let e = Some(1u8).map(|a| divergent(a));
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let e = Some(1u8).map(|a| generic(a));
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let e = Some(1u8).map(generic);
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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)
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where
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F: Fn(u8),
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{
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f(1u8)
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}
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fn foo(_: u8) {}
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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
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F: Fn(&X, &X) -> bool,
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{
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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 {
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x < y
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}
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unsafe fn unsafe_fn(_: u8) {}
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fn divergent(_: u8) -> ! {
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unimplemented!()
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}
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fn generic<T>(_: T) -> u8 {
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0
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}
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