rust/tests/compile-fail/collapsible_if.rs

67 lines
1.5 KiB
Rust

#![feature(plugin)]
#![plugin(clippy)]
#[deny(collapsible_if)]
fn main() {
let x = "hello";
let y = "world";
if x == "hello" { //~ERROR this if statement can be collapsed
if y == "world" {
println!("Hello world!");
}
}
if x == "hello" || x == "world" { //~ERROR this if statement can be collapsed
if y == "world" || y == "hello" {
println!("Hello world!");
}
}
// Collaspe `else { if .. }` to `else if ..`
if x == "hello" {
print!("Hello ");
} else { //~ERROR: this `else { if .. }`
//~| HELP try
//~| SUGGESTION else if y == "world"
if y == "world" {
println!("world!")
}
}
if x == "hello" {
print!("Hello ");
} else { //~ERROR this `else { if .. }`
//~| HELP try
//~| SUGGESTION else if y == "world"
if y == "world" {
println!("world")
}
else {
println!("!")
}
}
// Works because any if with an else statement cannot be collapsed.
if x == "hello" {
if y == "world" {
println!("Hello world!");
}
} else {
println!("Not Hello world");
}
if x == "hello" {
if y == "world" {
println!("Hello world!");
} else {
println!("Hello something else");
}
}
if x == "hello" {
print!("Hello ");
if y == "world" {
println!("world!")
}
}
}