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Remove InvalidParentHash in favor of assert! (#8300)

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* Remove InvalidParentHash in favor of assert!

* Typo: assert test true case
This commit is contained in:
Wei Tang 2018-04-05 17:03:25 +08:00 committed by André Silva
parent 9d3771458d
commit e4168c2985
2 changed files with 3 additions and 7 deletions
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4
ethcore/src/error.rs
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@ -86,9 +86,6 @@ pub enum BlockError {
TemporarilyInvalid(OutOfBounds<u64>),
/// Log bloom header field is invalid.
InvalidLogBloom(Mismatch<Bloom>),
/// Parent hash field of header is invalid; this is an invalid error indicating a logic flaw in the codebase.
/// TODO: remove and favour an assert!/panic!.
InvalidParentHash(Mismatch<H256>),
/// Number field of header is invalid.
InvalidNumber(Mismatch<BlockNumber>),
/// Block number isn't sensible.
@ -131,7 +128,6 @@ impl fmt::Display for BlockError {
InvalidTimestamp(ref oob) => format!("Invalid timestamp in header: {}", oob),
TemporarilyInvalid(ref oob) => format!("Future timestamp in header: {}", oob),
InvalidLogBloom(ref oob) => format!("Invalid log bloom in header: {}", oob),
InvalidParentHash(ref mis) => format!("Invalid parent hash: {}", mis),
InvalidNumber(ref mis) => format!("Invalid number in header: {}", mis),
RidiculousNumber(ref oob) => format!("Implausible block number. {}", oob),
UnknownParent(ref hash) => format!("Unknown parent: {}", hash),

6
ethcore/src/verification/verification.rs
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@ -304,11 +304,11 @@ pub fn verify_header_params(header: &Header, engine: &EthEngine, is_full: bool)
/// Check header parameters agains parent header.
fn verify_parent(header: &Header, parent: &Header, engine: &EthEngine) -> Result<(), Error> {
assert!(header.parent_hash().is_zero() || &parent.hash() == header.parent_hash(),
"Parent hash should already have been verified; qed");
let gas_limit_divisor = engine.params().gas_limit_bound_divisor;
if !header.parent_hash().is_zero() && &parent.hash() != header.parent_hash() {
return Err(From::from(BlockError::InvalidParentHash(Mismatch { expected: parent.hash(), found: header.parent_hash().clone() })))
}
if !engine.is_timestamp_valid(header.timestamp(), parent.timestamp()) {
return Err(From::from(BlockError::InvalidTimestamp(OutOfBounds { max: None, min: Some(parent.timestamp() + 1), found: header.timestamp() })))
}