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Expose information about the extrinsic in the metadata (#4774)

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* Expose information about the extrinsic in the metadata

This pr exposes some information about the extrinsic used in the runtime
via metadata. The following information are exposed:

- Version of the extrinsic
- List of all signed extensions used by the extrinsic.

* Increment `spec_version`
This commit is contained in:
Bastian Köcher
2020-01-30 16:41:03 +01:00
committed by GitHub
parent 6272b8d2c7
commit 45938d8033
13 changed files with 269 additions and 141 deletions
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substrate/frame/example/src/lib.rs
+1
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@@ -603,6 +603,7 @@ impl<T: Trait + Send + Sync> sp_std::fmt::Debug for WatchDummy<T> {
}
impl<T: Trait + Send + Sync> SignedExtension for WatchDummy<T> {
const IDENTIFIER: &'static str = "WatchDummy";
type AccountId = T::AccountId;
// Note that this could also be assigned to the top-level call enum. It is passed into the
// balances module directly and since `Trait: pallet_balances::Trait`, you could also use `T::Call`.