mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-05 02:50:32 +00:00
152 lines
3 KiB
Rust
152 lines
3 KiB
Rust
// run-rustfix
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#![allow(clippy::assertions_on_constants)]
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#[rustfmt::skip]
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#[warn(clippy::collapsible_if)]
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fn main() {
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let x = "hello";
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let y = "world";
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if x == "hello" {
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if y == "world" {
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println!("Hello world!");
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}
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}
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if x == "hello" || x == "world" {
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if y == "world" || y == "hello" {
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println!("Hello world!");
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}
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}
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if x == "hello" && x == "world" {
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if y == "world" || y == "hello" {
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println!("Hello world!");
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}
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}
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if x == "hello" || x == "world" {
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if y == "world" && y == "hello" {
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println!("Hello world!");
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}
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}
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if x == "hello" && x == "world" {
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if y == "world" && y == "hello" {
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println!("Hello world!");
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}
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}
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if 42 == 1337 {
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if 'a' != 'A' {
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println!("world!")
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}
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}
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// Works because any if with an else statement cannot be collapsed.
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if x == "hello" {
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if y == "world" {
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println!("Hello world!");
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}
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} else {
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println!("Not Hello world");
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}
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if x == "hello" {
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if y == "world" {
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println!("Hello world!");
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} else {
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println!("Hello something else");
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}
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}
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if x == "hello" {
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print!("Hello ");
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if y == "world" {
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println!("world!")
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}
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}
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if true {
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} else {
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assert!(true); // assert! is just an `if`
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}
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// The following tests check for the fix of https://github.com/rust-lang/rust-clippy/issues/798
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if x == "hello" {// Not collapsible
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if y == "world" {
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println!("Hello world!");
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}
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}
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if x == "hello" { // Not collapsible
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if y == "world" {
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println!("Hello world!");
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}
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}
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if x == "hello" {
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// Not collapsible
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if y == "world" {
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println!("Hello world!");
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}
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}
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if x == "hello" {
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if y == "world" { // Collapsible
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println!("Hello world!");
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}
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}
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if x == "hello" {
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print!("Hello ");
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} else {
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// Not collapsible
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if y == "world" {
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println!("world!")
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}
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}
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if x == "hello" {
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print!("Hello ");
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} else {
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// Not collapsible
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if let Some(42) = Some(42) {
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println!("world!")
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}
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}
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if x == "hello" {
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/* Not collapsible */
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if y == "world" {
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println!("Hello world!");
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}
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}
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if x == "hello" { /* Not collapsible */
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if y == "world" {
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println!("Hello world!");
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}
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}
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// Test behavior wrt. `let_chains`.
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// None of the cases below should be collapsed.
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fn truth() -> bool { true }
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// Prefix:
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if let 0 = 1 {
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if truth() {}
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}
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// Suffix:
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if truth() {
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if let 0 = 1 {}
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}
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// Midfix:
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if truth() {
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if let 0 = 1 {
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if truth() {}
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}
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}
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}
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