64 lines
1.6 KiB
Rust
64 lines
1.6 KiB
Rust
#![feature(plugin)]
|
|
#![plugin(clippy)]
|
|
|
|
#![deny(block_in_if_condition_expr)]
|
|
#![deny(block_in_if_condition_stmt)]
|
|
#![allow(unused)]
|
|
|
|
fn condition_has_block() -> i32 {
|
|
|
|
if { //~ERROR in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
|
|
let x = 3;
|
|
x == 3
|
|
} {
|
|
6
|
|
} else {
|
|
10
|
|
}
|
|
}
|
|
|
|
fn condition_has_block_with_single_expression() -> i32 {
|
|
if { true } { //~ERROR omit braces around single expression condition
|
|
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) { //~ERROR in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
|
|
|
|
}
|
|
|
|
if predicate(|x| { let target = 3; x == target }, v) { //~ERROR in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
|
|
|
|
}
|
|
|
|
}
|
|
|
|
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 main() {
|
|
}
|