16 lines
443 B
Rust
16 lines
443 B
Rust
use std::fmt::Debug;
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use super::Result;
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pub trait MapExpect<T> {
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/// Calls expect(msg) on the mapped Result value. This is similar to
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/// map(Result::unwrap) but composes an expect call and message without
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/// requiring a closure.
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fn map_expect(self, msg: &str) -> Option<T>;
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}
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impl<T, E: Debug> MapExpect<T> for Option<Result<T, E>> {
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#[inline]
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fn map_expect(self, msg: &str) -> Option<T> { self.map(|result| result.expect(msg)) }
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}
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