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add find last function (#821)

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This commit is contained in:
Léa Narzis
2023-02-13 11:53:22 +00:00
committed by GitHub
parent b623749dcd
commit 1092e8b26e
1 changed files with 6 additions and 0 deletions
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subxt/src/events/events_type.rs
+6
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@@ -187,6 +187,12 @@ impl<T: Config> Events<T> {
self.find::<Ev>().next().transpose() self.find::<Ev>().next().transpose()
} }
/// Iterate through the events using metadata to dynamically decode and skip
/// them, and return the last event found which decodes to the provided `Ev` type.
pub fn find_last<Ev: StaticEvent>(&self) -> Result<Option<Ev>, Error> {
self.find::<Ev>().last().transpose()
}
/// Find an event that decodes to the type provided. Returns true if it was found. /// Find an event that decodes to the type provided. Returns true if it was found.
pub fn has<Ev: StaticEvent>(&self) -> Result<bool, Error> { pub fn has<Ev: StaticEvent>(&self) -> Result<bool, Error> {
Ok(self.find::<Ev>().next().transpose()?.is_some()) Ok(self.find::<Ev>().next().transpose()?.is_some())