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Make collation an optional return (#1787)

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This pr changes the collator interface function to return an optional
collation instead of a collation. This is required as the parachain
itself can fail to generate a valid collation for various reason. Now if
the collation fails it will return `None`.

Besides that the pr adds some `RuntimeDebug` derive for `ValidationData`
and removes some whitespaces.
This commit is contained in:
Bastian Köcher
2020-10-06 11:57:10 +02:00
committed by GitHub
parent 22e7d54f4d
commit a4662104db
7 changed files with 51 additions and 34 deletions
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polkadot/node/overseer/src/lib.rs
+1 -1
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@@ -1883,7 +1883,7 @@ mod tests {
struct TestCollator;
impl Future for TestCollator {
type Output = Collation;
type Output = Option<Collation>;
fn poll(self: Pin<&mut Self>, _cx: &mut futures::task::Context) -> Poll<Self::Output> {
panic!("at the Disco")