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core: clean up variables definition

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This commit is contained in:
rjl493456442 2018-05-09 18:34:22 +08:00
parent a3bc74f0c8
commit 76e01aa6e7
1 changed files with 5 additions and 4 deletions
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9
core/chain_makers.go
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@ -256,11 +256,12 @@ func makeHeader(chain consensus.ChainReader, parent *types.Block, state *state.S
// chain. Depending on the full flag, if creates either a full block chain or a
// header only chain.
func newCanonical(engine consensus.Engine, n int, full bool) (ethdb.Database, *BlockChain, error) {
// Initialize a fresh chain with only a genesis block
gspec := new(Genesis)
db := ethdb.NewMemDatabase()
genesis := gspec.MustCommit(db)
var (
db = ethdb.NewMemDatabase()
genesis = new(Genesis).MustCommit(db)
)
// Initialize a fresh chain with only a genesis block
blockchain, _ := NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{})
// Create and inject the requested chain
if n == 0 {