mirror of https://github.com/rust-lang/rust.git
45 lines
1.2 KiB
Rust
45 lines
1.2 KiB
Rust
#![warn(clippy::unwrap_in_result)]
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struct A;
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impl A {
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// should not be detected
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fn good_divisible_by_3(i_str: String) -> Result<bool, String> {
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// checks whether a string represents a number divisible by 3
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let i_result = i_str.parse::<i32>();
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match i_result {
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Err(_e) => Err("Not a number".to_string()),
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Ok(i) => {
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if i % 3 == 0 {
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return Ok(true);
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}
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Err("Number is not divisible by 3".to_string())
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},
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}
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}
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// should be detected
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fn bad_divisible_by_3(i_str: String) -> Result<bool, String> {
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// checks whether a string represents a number divisible by 3
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let i = i_str.parse::<i32>().unwrap();
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if i % 3 == 0 {
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Ok(true)
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} else {
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Err("Number is not divisible by 3".to_string())
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}
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}
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fn example_option_expect(i_str: String) -> Option<bool> {
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let i = i_str.parse::<i32>().expect("not a number");
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if i % 3 == 0 {
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return Some(true);
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}
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None
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}
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}
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fn main() {
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A::bad_divisible_by_3("3".to_string());
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A::good_divisible_by_3("3".to_string());
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}
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