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DigestItem trait (v3) (#687)

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* DigestItem v4

* tests

* wording
This commit is contained in:
Svyatoslav Nikolsky
2018-09-10 19:34:51 +03:00
committed by Gav Wood
parent 153439aeea
commit 0e1023ae42
18 changed files with 417 additions and 131 deletions
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substrate/demo/primitives/src/lib.rs
+2 -15
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@@ -40,7 +40,7 @@ use rstd::prelude::*;
use runtime_primitives::generic;
#[cfg(feature = "std")]
use primitives::bytes;
use runtime_primitives::traits::{BlakeTwo256, DigestItem};
use runtime_primitives::traits::BlakeTwo256;
/// An index to a block.
pub type BlockNumber = u64;
@@ -73,25 +73,12 @@ pub type Signature = runtime_primitives::Ed25519Signature;
pub type Timestamp = u64;
/// Header type.
pub type Header = generic::Header<BlockNumber, BlakeTwo256, Log>;
pub type Header = generic::Header<BlockNumber, BlakeTwo256, generic::DigestItem<()>>;
/// Block type.
pub type Block = generic::Block<Header, UncheckedExtrinsic>;
/// Block ID.
pub type BlockId = generic::BlockId<Block>;
/// A log entry in the block.
#[derive(PartialEq, Eq, Clone, Default, Encode, Decode)]
#[cfg_attr(feature = "std", derive(Serialize, Deserialize, Debug))]
pub struct Log(#[cfg_attr(feature = "std", serde(with="bytes"))] pub Vec<u8>);
//TODO: remove this. Generic primitives should not require DigestItem
impl DigestItem for Log {
type AuthoritiesChange = ();
fn as_authorities_change(&self) -> Option<&()> {
unreachable!()
}
}
/// Opaque, encoded, unchecked extrinsic.
#[derive(PartialEq, Eq, Clone, Default, Encode, Decode)]
#[cfg_attr(feature = "std", derive(Serialize, Deserialize, Debug))]