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all: get rid of error when creating memory database (#16716)

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* all: get rid of error when create mdb

* core: clean up variables definition

* all: inline mdb definition
This commit is contained in:
gary rong
2018-05-09 20:24:25 +08:00
committed by Péter Szilágyi
parent 5dbd8b42a9
commit 7beccb29be
48 changed files with 172 additions and 230 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 {