rust/tests/ui/blocks_in_if_conditions.rs
2020-05-15 18:27:11 +02:00

75 lines
1.1 KiB
Rust

// run-rustfix
#![warn(clippy::blocks_in_if_conditions)]
#![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 condition_is_normal() -> i32 {
let x = 3;
if true && x == 3 {
6
} else {
10
}
}
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 block_in_assert() {
let opt = Some(42);
assert!(opt
.as_ref()
.and_then(|val| {
let mut v = val * 2;
v -= 1;
Some(v * 3)
})
.is_some());
}
fn main() {}