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simplify ethcore machine by removing redundant traits (#10454)

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This commit is contained in:
Marek Kotewicz
2019-03-11 11:37:48 +01:00
committed by Andrew Jones
parent ab27848dc4
commit 23d977ecce
6 changed files with 20 additions and 76 deletions
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33
machine/src/lib.rs
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@@ -40,37 +40,6 @@ pub trait Header {
fn number(&self) -> u64;
}
/// A header with an associated score (difficulty in PoW terms)
pub trait ScoredHeader: Header {
type Value;
/// Get the score of this header.
fn score(&self) -> &Self::Value;
/// Set the score of this header.
fn set_score(&mut self, score: Self::Value);
}
/// A header with associated total score.
pub trait TotalScoredHeader: Header {
type Value;
/// Get the total score of this header.
fn total_score(&self) -> Self::Value;
}
/// A header with finalized information.
pub trait FinalizableHeader: Header {
/// Get whether this header is considered finalized, so that it will never be replaced in reorganization.
fn is_finalized(&self) -> bool;
}
/// A header with metadata information.
pub trait WithMetadataHeader: Header {
/// Get the current header metadata.
fn metadata(&self) -> Option<&[u8]>;
}
/// A "live" block is one which is in the process of the transition.
/// The state of this block can be mutated by arbitrary rules of the
/// state transition function.
@@ -101,8 +70,6 @@ pub trait Machine: for<'a> LocalizedMachine<'a> {
type Header: Header;
/// The live block type.
type LiveBlock: LiveBlock<Header=Self::Header>;
/// Block header with metadata information.
type ExtendedHeader: Header;
/// A handle to a blockchain client for this machine.
type EngineClient: ?Sized;
/// A description of needed auxiliary data.