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add hash() to tip for safety (#2145)

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Antioch Peverell 2018-12-13 13:44:50 +00:00 committed by GitHub
parent df62fd6d95
commit 7ae22eff2b
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1 changed files with 7 additions and 2 deletions
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9
chain/src/types.rs
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@ -64,8 +64,7 @@ pub struct Tip {
} }
impl Tip { impl Tip {
/// TODO - why do we have Tip when we could just use a block header? /// Creates a new tip based on provided header.
/// Creates a new tip based on header.
pub fn from_header(header: &BlockHeader) -> Tip { pub fn from_header(header: &BlockHeader) -> Tip {
Tip { Tip {
height: header.height, height: header.height,
@ -74,6 +73,12 @@ impl Tip {
total_difficulty: header.total_difficulty(), total_difficulty: header.total_difficulty(),
} }
} }
/// *Really* easy to accidentally call hash() on a tip (thinking its a header).
/// So lets make hash() do the right thing here.
pub fn hash(&self) -> Hash {
self.last_block_h
}
} }
impl Default for Tip { impl Default for Tip {