114 lines
2.2 KiB
Rust
114 lines
2.2 KiB
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
#![warn(clippy::block_in_if_condition_expr)]
|
|
#![warn(clippy::block_in_if_condition_stmt)]
|
|
#![allow(unused, clippy::let_and_return)]
|
|
#![warn(clippy::nonminimal_bool)]
|
|
|
|
macro_rules! blocky {
|
|
() => {{
|
|
true
|
|
}};
|
|
}
|
|
|
|
macro_rules! blocky_too {
|
|
() => {{
|
|
let r = true;
|
|
r
|
|
}};
|
|
}
|
|
|
|
fn macro_if() {
|
|
if blocky!() {}
|
|
|
|
if blocky_too!() {}
|
|
}
|
|
|
|
fn condition_has_block() -> i32 {
|
|
if {
|
|
let x = 3;
|
|
x == 3
|
|
} {
|
|
6
|
|
} else {
|
|
10
|
|
}
|
|
}
|
|
|
|
fn condition_has_block_with_single_expression() -> i32 {
|
|
if { true } {
|
|
6
|
|
} else {
|
|
10
|
|
}
|
|
}
|
|
|
|
fn predicate<F: FnOnce(T) -> bool, T>(pfn: F, val: T) -> bool {
|
|
pfn(val)
|
|
}
|
|
|
|
fn pred_test() {
|
|
let v = 3;
|
|
let sky = "blue";
|
|
// this is a sneaky case, where the block isn't directly in the condition, but is actually
|
|
// inside a closure that the condition is using. same principle applies. add some extra
|
|
// expressions to make sure linter isn't confused by them.
|
|
if v == 3
|
|
&& sky == "blue"
|
|
&& predicate(
|
|
|x| {
|
|
let target = 3;
|
|
x == target
|
|
},
|
|
v,
|
|
)
|
|
{}
|
|
|
|
if predicate(
|
|
|x| {
|
|
let target = 3;
|
|
x == target
|
|
},
|
|
v,
|
|
) {}
|
|
}
|
|
|
|
fn condition_is_normal() -> i32 {
|
|
let x = 3;
|
|
if true && x == 3 {
|
|
6
|
|
} else {
|
|
10
|
|
}
|
|
}
|
|
|
|
fn closure_without_block() {
|
|
if predicate(|x| x == 3, 6) {}
|
|
}
|
|
|
|
fn condition_is_unsafe_block() {
|
|
let a: i32 = 1;
|
|
|
|
// this should not warn because the condition is an unsafe block
|
|
if unsafe { 1u32 == std::mem::transmute(a) } {
|
|
println!("1u32 == a");
|
|
}
|
|
}
|
|
|
|
fn main() {}
|
|
|
|
fn macro_in_closure() {
|
|
let option = Some(true);
|
|
|
|
if option.unwrap_or_else(|| unimplemented!()) {
|
|
unimplemented!()
|
|
}
|
|
}
|