55 lines
1.3 KiB
Rust
55 lines
1.3 KiB
Rust
#![warn(clippy::unnecessary_literal_unwrap)]
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#![allow(clippy::unnecessary_lazy_evaluations)]
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#![allow(unreachable_code)]
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fn unwrap_option_some() {
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let val = Some(1);
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let _val2 = val.unwrap();
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let _val2 = val.expect("this never happens");
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}
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fn unwrap_option_none() {
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let val = None::<usize>;
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val.unwrap();
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val.expect("this always happens");
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}
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fn unwrap_result_ok() {
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let val = Ok::<usize, ()>(1);
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let _val2 = val.unwrap();
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let _val2 = val.expect("this never happens");
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val.unwrap_err();
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val.expect_err("this always happens");
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}
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fn unwrap_result_err() {
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let val = Err::<(), usize>(1);
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let _val2 = val.unwrap_err();
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let _val2 = val.expect_err("this never happens");
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val.unwrap();
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val.expect("this always happens");
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}
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fn unwrap_methods_option() {
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let val = Some(1);
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let _val2 = val.unwrap_or(2);
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let _val2 = val.unwrap_or_default();
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let _val2 = val.unwrap_or_else(|| 2);
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}
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fn unwrap_methods_result() {
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let val = Ok::<usize, ()>(1);
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let _val2 = val.unwrap_or(2);
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let _val2 = val.unwrap_or_default();
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let _val2 = val.unwrap_or_else(|_| 2);
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}
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fn main() {
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unwrap_option_some();
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unwrap_option_none();
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unwrap_result_ok();
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unwrap_result_err();
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unwrap_methods_option();
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unwrap_methods_result();
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}
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