all: seperate consensus error and evm internal error (#20830)

* all: seperate consensus error and evm internal error

There are actually two types of error will be returned when
a tranaction/message call is executed: (a) consensus error
(b) evm internal error. The former should be converted to
a consensus issue, e.g. The sender doesn't enough asset to
purchase the gas it specifies. The latter is allowed since
evm itself is a blackbox and internal error is allowed to happen.

This PR emphasizes the difference by introducing a executionResult
structure. The evm error is embedded inside. So if any error
returned, it indicates consensus issue happens.

And also this PR improve the `EstimateGas` API to return the concrete
revert reason if the transaction always fails

* all: polish

* accounts/abi/bind/backends: add tests

* accounts/abi/bind/backends, internal: cleanup error message

* all: address comments

* core: fix lint

* accounts, core, eth, internal: address comments

* accounts, internal: resolve revert reason if possible

* accounts, internal: address comments
This commit is contained in:
gary rong
2020-04-22 16:25:36 +08:00
committed by GitHub
parent c60c0c97e7
commit b9df7ecdc3
33 changed files with 550 additions and 238 deletions

View File

@ -198,8 +198,8 @@ func odrContractCall(ctx context.Context, db ethdb.Database, bc *core.BlockChain
context := core.NewEVMContext(msg, header, chain, nil)
vmenv := vm.NewEVM(context, st, config, vm.Config{})
gp := new(core.GasPool).AddGas(math.MaxUint64)
ret, _, _, _ := core.ApplyMessage(vmenv, msg, gp)
res = append(res, ret...)
result, _ := core.ApplyMessage(vmenv, msg, gp)
res = append(res, result.Return()...)
if st.Error() != nil {
return res, st.Error()
}