216 lines
3.6 KiB
Rust
216 lines
3.6 KiB
Rust
// run-rustfix
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// edition:2018
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#![feature(let_else)]
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#![allow(unused)]
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#![allow(
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clippy::if_same_then_else,
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clippy::single_match,
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clippy::needless_bool,
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clippy::equatable_if_let
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)]
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#![warn(clippy::needless_return)]
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macro_rules! the_answer {
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() => {
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42
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};
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}
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fn test_end_of_fn() -> bool {
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if true {
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// no error!
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return true;
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}
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return true;
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}
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fn test_no_semicolon() -> bool {
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return true;
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}
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fn test_if_block() -> bool {
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if true {
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return true;
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} else {
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return false;
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}
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}
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fn test_match(x: bool) -> bool {
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match x {
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true => return false,
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false => {
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return true;
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},
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}
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}
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fn test_closure() {
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let _ = || {
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return true;
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};
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let _ = || return true;
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}
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fn test_macro_call() -> i32 {
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return the_answer!();
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}
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fn test_void_fun() {
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return;
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}
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fn test_void_if_fun(b: bool) {
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if b {
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return;
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} else {
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return;
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}
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}
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fn test_void_match(x: u32) {
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match x {
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0 => (),
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_ => return,
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}
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}
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fn read_line() -> String {
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use std::io::BufRead;
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let stdin = ::std::io::stdin();
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return stdin.lock().lines().next().unwrap().unwrap();
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}
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fn borrows_but_not_last(value: bool) -> String {
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if value {
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use std::io::BufRead;
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let stdin = ::std::io::stdin();
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let _a = stdin.lock().lines().next().unwrap().unwrap();
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return String::from("test");
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} else {
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return String::new();
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}
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}
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macro_rules! needed_return {
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($e:expr) => {
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if $e > 3 {
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return;
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}
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};
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}
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fn test_return_in_macro() {
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// This will return and the macro below won't be executed. Removing the `return` from the macro
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// will change semantics.
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needed_return!(10);
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needed_return!(0);
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}
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mod issue6501 {
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fn foo(bar: Result<(), ()>) {
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bar.unwrap_or_else(|_| return)
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}
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fn test_closure() {
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let _ = || {
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return;
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};
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let _ = || return;
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}
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struct Foo;
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#[allow(clippy::unnecessary_lazy_evaluations)]
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fn bar(res: Result<Foo, u8>) -> Foo {
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res.unwrap_or_else(|_| return Foo)
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}
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}
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async fn async_test_end_of_fn() -> bool {
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if true {
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// no error!
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return true;
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}
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return true;
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}
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async fn async_test_no_semicolon() -> bool {
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return true;
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}
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async fn async_test_if_block() -> bool {
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if true {
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return true;
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} else {
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return false;
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}
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}
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async fn async_test_match(x: bool) -> bool {
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match x {
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true => return false,
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false => {
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return true;
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},
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}
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}
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async fn async_test_closure() {
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let _ = || {
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return true;
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};
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let _ = || return true;
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}
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async fn async_test_macro_call() -> i32 {
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return the_answer!();
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}
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async fn async_test_void_fun() {
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return;
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}
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async fn async_test_void_if_fun(b: bool) {
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if b {
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return;
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} else {
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return;
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}
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}
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async fn async_test_void_match(x: u32) {
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match x {
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0 => (),
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_ => return,
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}
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}
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async fn async_read_line() -> String {
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use std::io::BufRead;
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let stdin = ::std::io::stdin();
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return stdin.lock().lines().next().unwrap().unwrap();
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}
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async fn async_borrows_but_not_last(value: bool) -> String {
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if value {
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use std::io::BufRead;
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let stdin = ::std::io::stdin();
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let _a = stdin.lock().lines().next().unwrap().unwrap();
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return String::from("test");
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} else {
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return String::new();
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}
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}
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async fn async_test_return_in_macro() {
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needed_return!(10);
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needed_return!(0);
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}
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fn let_else() {
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let Some(1) = Some(1) else { return };
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}
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fn main() {}
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