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Diffstat (limited to 'crates/mbe/src/lib.rs')
| -rw-r--r-- | crates/mbe/src/lib.rs | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/crates/mbe/src/lib.rs b/crates/mbe/src/lib.rs index 936cf178f0..76fdac097f 100644 --- a/crates/mbe/src/lib.rs +++ b/crates/mbe/src/lib.rs @@ -374,6 +374,13 @@ impl<T, E> ValueResult<T, E> { ValueResult { value: f(self.value), err: self.err } } + pub fn as_ref(&self) -> ValueResult<&T, E> + where + E: Clone, + { + ValueResult { value: &self.value, err: self.err.clone() } + } + pub fn map_err<E2>(self, f: impl FnOnce(E) -> E2) -> ValueResult<T, E2> { ValueResult { value: self.value, err: self.err.map(f) } } |