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Add docstrings to BeaconStateBuilder

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This commit is contained in:
Paul Hauner 2019-02-26 22:34:41 +13:00
parent 3ff8f6ebb3
commit c2fb095759
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1 changed files with 16 additions and 1 deletions
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17
eth2/types/src/beacon_state/builder.rs
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@ -46,6 +46,10 @@ impl BeaconStateBuilder {
}
}
/// Builds a `BeaconState` using the `BeaconState::genesis(..)` function.
///
/// Each validator is assigned a unique, randomly-generated keypair and all
/// proof-of-possessions are verified during genesis.
pub fn build(&mut self) -> Result<(), BeaconStateError> {
self.keypairs = (0..self.validator_count)
.collect::<Vec<usize>>()
@ -53,7 +57,8 @@ impl BeaconStateBuilder {
.map(|_| Keypair::random())
.collect();
let initial_validator_deposits = self.keypairs
let initial_validator_deposits = self
.keypairs
.iter()
.map(|keypair| Deposit {
branch: vec![], // branch verification is not specified.
@ -82,6 +87,16 @@ impl BeaconStateBuilder {
Ok(())
}
/// Builds a `BeaconState` using the `BeaconState::genesis(..)` function, without supplying any
/// validators. Instead validators are added to the state post-genesis.
///
/// One keypair is randomly generated and all validators are assigned this same keypair.
/// Proof-of-possessions are not created (or validated).
///
/// This function runs orders of magnitude faster than `Self::build()`, however it will be
/// erroneous for functions which use a validators public key as an identifier (e.g.,
/// deposits).
/// proof-of-possessions are verified during genesis.
pub fn build_fast(&mut self) -> Result<(), BeaconStateError> {
let common_keypair = Keypair::random();