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rust-clippy/tests/ui/comparison_chain.rs

206 lines
3 KiB
Rust

#![allow(dead_code)]
#![warn(clippy::comparison_chain)]
fn a() {}
fn b() {}
fn c() {}
fn f(x: u8, y: u8, z: u8) {
// Ignored: Only one branch
if x > y {
a()
}
if x > y {
a()
} else if x < y {
b()
}
// Ignored: Only one explicit conditional
if x > y {
a()
} else {
b()
}
if x > y {
a()
} else if x < y {
b()
} else {
c()
}
if x > y {
a()
} else if y > x {
b()
} else {
c()
}
if x > 1 {
a()
} else if x < 1 {
b()
} else if x == 1 {
c()
}
// Ignored: Binop args are not equivalent
if x > 1 {
a()
} else if y > 1 {
b()
} else {
c()
}
// Ignored: Binop args are not equivalent
if x > y {
a()
} else if x > z {
b()
} else if y > z {
c()
}
// Ignored: Not binary comparisons
if true {
a()
} else if false {
b()
} else {
c()
}
}
#[allow(clippy::float_cmp)]
fn g(x: f64, y: f64, z: f64) {
// Ignored: f64 doesn't implement Ord
if x > y {
a()
} else if x < y {
b()
}
// Ignored: f64 doesn't implement Ord
if x > y {
a()
} else if x < y {
b()
} else {
c()
}
// Ignored: f64 doesn't implement Ord
if x > y {
a()
} else if y > x {
b()
} else {
c()
}
// Ignored: f64 doesn't implement Ord
if x > 1.0 {
a()
} else if x < 1.0 {
b()
} else if x == 1.0 {
c()
}
}
fn h<T: Ord>(x: T, y: T, z: T) {
if x > y {
a()
} else if x < y {
b()
}
if x > y {
a()
} else if x < y {
b()
} else {
c()
}
if x > y {
a()
} else if y > x {
b()
} else {
c()
}
}
// The following uses should be ignored
mod issue_5212 {
use super::{a, b, c};
fn foo() -> u8 {
21
}
fn same_operation_equals() {
// operands are fixed
if foo() == 42 {
a()
} else if foo() == 42 {
b()
}
if foo() == 42 {
a()
} else if foo() == 42 {
b()
} else {
c()
}
// operands are transposed
if foo() == 42 {
a()
} else if 42 == foo() {
b()
}
}
fn same_operation_not_equals() {
// operands are fixed
if foo() > 42 {
a()
} else if foo() > 42 {
b()
}
if foo() > 42 {
a()
} else if foo() > 42 {
b()
} else {
c()
}
if foo() < 42 {
a()
} else if foo() < 42 {
b()
}
if foo() < 42 {
a()
} else if foo() < 42 {
b()
} else {
c()
}
}
}
fn main() {}