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| author | Péter Szilágyi <peterke@gmail.com> | 2016-04-27 21:29:13 +0800 |
|---|---|---|
| committer | Péter Szilágyi <peterke@gmail.com> | 2016-04-27 22:15:23 +0800 |
| commit | cdcbb2f16014077597e5901c0f328920c904409e (patch) | |
| tree | c0b750618d97a278f73ccfd7bbf380b40f1d3a0f /eth/api.go | |
| parent | db62979514c69574aefdcf8c2ed9099aa0cd1abe (diff) | |
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accounts/abi/bind, eth: add contract non-existent error
Diffstat (limited to 'eth/api.go')
| -rw-r--r-- | eth/api.go | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/eth/api.go b/eth/api.go index a0b1f8ac2..02b34541f 100644 --- a/eth/api.go +++ b/eth/api.go @@ -51,6 +51,15 @@ import ( "golang.org/x/net/context" ) +// ErrNoCode is returned by call and transact operations for which the requested +// recipient contract to operate on does not exist in the state db or does not +// have any code associated with it (i.e. suicided). +// +// Please note, this error string is part of the RPC API and is expected by the +// native contract bindings to signal this particular error. Do not change this +// as it will break all dependent code! +var ErrNoCode = errors.New("no contract code at given address") + const defaultGas = uint64(90000) // blockByNumber is a commonly used helper function which retrieves and returns @@ -694,6 +703,12 @@ func (s *PublicBlockChainAPI) doCall(args CallArgs, blockNr rpc.BlockNumber) (st } stateDb = stateDb.Copy() + // If there's no code to interact with, respond with an appropriate error + if args.To != nil { + if code := stateDb.GetCode(*args.To); len(code) == 0 { + return "0x", nil, ErrNoCode + } + } // Retrieve the account state object to interact with var from *state.StateObject if args.From == (common.Address{}) { |