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Move create_inherents into the block-builder (#6553)

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* Move `create_inherents` into the block-builder

This moves the `create_inherents` call into the block-builder. This has
the advantage that `create_inherents` will be able to reuse the same
context that will be used when applying the extrinsics and we also save
one call to `on_initialize`. To make sure that `create_inherents` does
not modify any state, we execute it in a transaction that is
rolled-back after doing the runtime call.

* Feedback and build fix

* Update primitives/runtime/src/lib.rs

Co-authored-by: Sergei Shulepov <sergei@parity.io>

* Update client/block-builder/src/lib.rs

Co-authored-by: Sergei Shulepov <sergei@parity.io>
This commit is contained in:
Bastian Köcher
2020-07-02 15:17:14 +02:00
committed by GitHub
parent e1d0f84c67
commit 4f7f312be5
9 changed files with 78 additions and 48 deletions
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substrate/frame/support/src/storage/mod.rs
+1 -8
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@@ -21,6 +21,7 @@ use sp_std::{prelude::*, marker::PhantomData};
use codec::{FullCodec, FullEncode, Encode, EncodeLike, Decode};
use crate::hash::{Twox128, StorageHasher};
use sp_runtime::generic::{Digest, DigestItem};
pub use sp_runtime::TransactionOutcome;
pub mod unhashed;
pub mod hashed;
@@ -29,14 +30,6 @@ pub mod child;
pub mod generator;
pub mod migration;
/// Describes whether a storage transaction should be committed or rolled back.
pub enum TransactionOutcome<T> {
/// Transaction should be committed.
Commit(T),
/// Transaction should be rolled back.
Rollback(T),
}
/// Execute the supplied function in a new storage transaction.
///
/// All changes to storage performed by the supplied function are discarded if the returned