rust/tests/ui/redundant_else.rs
Joshua Nelson ac9dd36856 Don't abort compilation after giving a lint error
The only reason to use `abort_if_errors` is when the program is so broken that either:
1. later passes get confused and ICE
2. any diagnostics from later passes would be noise

This is never the case for lints, because the compiler has to be able to deal with `allow`-ed lints.
So it can continue to lint and compile even if there are lint errors.
2021-11-08 01:22:28 +00:00

155 lines
2.8 KiB
Rust

#![warn(clippy::redundant_else)]
#![allow(clippy::needless_return, clippy::if_same_then_else)]
fn main() {
loop {
// break
if foo() {
println!("Love your neighbor;");
break;
} else {
println!("yet don't pull down your hedge.");
}
// continue
if foo() {
println!("He that lies down with Dogs,");
continue;
} else {
println!("shall rise up with fleas.");
}
// match block
if foo() {
match foo() {
1 => break,
_ => return,
}
} else {
println!("You may delay, but time will not.");
}
}
// else if
if foo() {
return;
} else if foo() {
return;
} else {
println!("A fat kitchen makes a lean will.");
}
// let binding outside of block
let _ = {
if foo() {
return;
} else {
1
}
};
// else if with let binding outside of block
let _ = {
if foo() {
return;
} else if foo() {
return;
} else {
2
}
};
// inside if let
let _ = if let Some(1) = foo() {
let _ = 1;
if foo() {
return;
} else {
1
}
} else {
1
};
//
// non-lint cases
//
// sanity check
if foo() {
let _ = 1;
} else {
println!("Who is wise? He that learns from every one.");
}
// else if without else
if foo() {
return;
} else if foo() {
foo()
};
// nested if return
if foo() {
if foo() {
return;
}
} else {
foo()
};
// match with non-breaking branch
if foo() {
match foo() {
1 => foo(),
_ => return,
}
} else {
println!("Three may keep a secret, if two of them are dead.");
}
// let binding
let _ = if foo() {
return;
} else {
1
};
// assign
let mut a;
a = if foo() {
return;
} else {
1
};
// assign-op
a += if foo() {
return;
} else {
1
};
// if return else if else
if foo() {
return;
} else if foo() {
1
} else {
2
};
// if else if return else
if foo() {
1
} else if foo() {
return;
} else {
2
};
// else if with let binding
let _ = if foo() {
return;
} else if foo() {
return;
} else {
2
};
// inside function call
Box::new(if foo() {
return;
} else {
1
});
}
fn foo<T>() -> T {
unimplemented!("I'm not Santa Claus")
}