rust/tests/ui/result_map_unwrap_or_else.rs
2019-01-08 21:46:39 +01:00

24 lines
710 B
Rust

// aux-build:option_helpers.rs
//! Checks implementation of `RESULT_MAP_UNWRAP_OR_ELSE`
#![warn(clippy::result_map_unwrap_or_else)]
#[macro_use]
extern crate option_helpers;
fn result_methods() {
let res: Result<i32, ()> = Ok(1);
// Check RESULT_MAP_UNWRAP_OR_ELSE
// single line case
let _ = res.map(|x| x + 1).unwrap_or_else(|e| 0); // should lint even though this call is on a separate line
// multi line cases
let _ = res.map(|x| x + 1).unwrap_or_else(|e| 0);
let _ = res.map(|x| x + 1).unwrap_or_else(|e| 0);
// macro case
let _ = opt_map!(res, |x| x + 1).unwrap_or_else(|e| 0); // should not lint
}
fn main() {}