Function makeHeader

core/chain_makers.go:227–249

(chain consensus.ChainReader, parent *types.Block, state *state.StateDB, engine consensus.Engine)

}

func makeHeader(chain consensus.ChainReader, parent *types.Block, state *state.StateDB, engine consensus.Engine) *types.Header {
	var time *big.Int
	if parent.Time() == nil {
		time = big.NewInt(10)
	} else {
		time = new(big.Int).Add(parent.Time(), big.NewInt(10)) // block time is fixed at 10 seconds
	}

	header := &types.Header{}

	header.Number = new(big.Int).Add(parent.Number(), common.Big1)
	header.ParentHash = parent.Hash()

	_ = engine.PrepareBlock(chain, header)

	header.StateRoot = state.IntermediateRoot(true)
	header.Coinbase = parent.Coinbase()
	header.GasLimit = CalcGasLimit(parent)

	header.Time = time

	return header
}

// makeHeaderChain creates a deterministic chain of headers rooted at parent.
func makeHeaderChain(parent *types.Header, n int, engine consensus.Engine, db database.Database, seed int) []*types.Header {