diff options
author | Matthias Beyer <mail@beyermatthias.de> | 2021-03-07 18:12:33 +0100 |
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committer | Matthias Beyer <mail@beyermatthias.de> | 2021-03-07 18:12:33 +0100 |
commit | 1fb98e5cecc740a0475d6263bb91724cc13bea03 (patch) | |
tree | 593f9e66e00d1241de21bf1d4eedfb0ff5193284 /src/lib.rs | |
parent | 539527361a60ee6cdf515e85faf839629d533e34 (diff) |
Add inspect variant for errors
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Diffstat (limited to 'src/lib.rs')
-rw-r--r-- | src/lib.rs | 39 |
1 files changed, 39 insertions, 0 deletions
@@ -38,3 +38,42 @@ impl<F, T, E> ResultInspectRef<F, T> for Result<T, E> } } } + + +pub trait ResultInspectErr<F, E> + where F: FnOnce(&E), + E: Sized +{ + fn inspect_err(self, f: F) -> Self; +} + +pub trait ResultInspectErrRef<F, E> + where F: FnOnce(&E), + E: Sized +{ + fn inspect_err(&self, f: F); +} + +impl<F, T, E> ResultInspectErr<F, E> for Result<T, E> + where F: FnOnce(&E), + E: Sized +{ + fn inspect_err(self, f: F) -> Self { + if let Err(ref e) = self.as_ref() { + (f)(&e); + } + + self + } +} + +impl<F, T, E> ResultInspectErrRef<F, E> for Result<T, E> + where F: FnOnce(&E), + E: Sized +{ + fn inspect_err(&self, f: F) { + if let Err(ref e) = self { + (f)(&e); + } + } +} |