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core/state: access trie through Database interface, track errors (#14589)

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With this commit, core/state's access to the underlying key/value database is
mediated through an interface. Database errors are tracked in StateDB and
returned by CommitTo or the new Error method.

Motivation for this change: We can remove the light client's duplicated copy of
core/state. The light client now supports node iteration, so tracing and storage
enumeration can work with the light client (not implemented in this commit).
This commit is contained in:
Felix Lange
2017-06-27 15:57:06 +02:00
committed by GitHub
parent bb366271fe
commit 9e5f03b6c4
49 changed files with 810 additions and 1664 deletions
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6
eth/bind.go
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@ -54,14 +54,12 @@ func NewContractBackend(apiBackend ethapi.Backend) *ContractBackend {
// CodeAt retrieves any code associated with the contract from the local API.
func (b *ContractBackend) CodeAt(ctx context.Context, contract common.Address, blockNum *big.Int) ([]byte, error) {
out, err := b.bcapi.GetCode(ctx, contract, toBlockNumber(blockNum))
return common.FromHex(out), err
return b.bcapi.GetCode(ctx, contract, toBlockNumber(blockNum))
}
// CodeAt retrieves any code associated with the contract from the local API.
func (b *ContractBackend) PendingCodeAt(ctx context.Context, contract common.Address) ([]byte, error) {
out, err := b.bcapi.GetCode(ctx, contract, rpc.PendingBlockNumber)
return common.FromHex(out), err
return b.bcapi.GetCode(ctx, contract, rpc.PendingBlockNumber)
}
// ContractCall implements bind.ContractCaller executing an Ethereum contract