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add map_expect for stream

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Signed-off-by: Jason Volk <jason@zemos.net>
This commit is contained in:
Jason Volk 2024-11-02 04:54:28 +00:00
parent 8742437036
commit f191b4bad4
2 changed files with 12 additions and 7 deletions
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8
src/core/utils/result/map_expect.rs
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@ -2,14 +2,14 @@ use std::fmt::Debug;
use super::Result;
pub trait MapExpect<T> {
pub trait MapExpect<'a, T> {
/// Calls expect(msg) on the mapped Result value. This is similar to
/// map(Result::unwrap) but composes an expect call and message without
/// requiring a closure.
fn map_expect(self, msg: &str) -> Option<T>;
fn map_expect(self, msg: &'a str) -> T;
}
impl<T, E: Debug> MapExpect<T> for Option<Result<T, E>> {
impl<'a, T, E: Debug> MapExpect<'a, Option<T>> for Option<Result<T, E>> {
#[inline]
fn map_expect(self, msg: &str) -> Option<T> { self.map(|result| result.expect(msg)) }
fn map_expect(self, msg: &'a str) -> Option<T> { self.map(|result| result.expect(msg)) }
}