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

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* 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
Download Patch File Download Diff File Expand all files Collapse all files

14
eth/api_tracer.go
View File

@@ -502,7 +502,7 @@ func (api *PrivateDebugAPI) traceBlock(ctx context.Context, block *types.Block,
vmctx := core.NewEVMContext(msg, block.Header(), api.eth.blockchain, nil)
vmenv := vm.NewEVM(vmctx, statedb, api.eth.blockchain.Config(), vm.Config{})
if _, _, _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(msg.Gas())); err != nil {
if _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(msg.Gas())); err != nil {
failed = err
break
}
@@ -596,7 +596,7 @@ func (api *PrivateDebugAPI) standardTraceBlockToFile(ctx context.Context, block
}
// Execute the transaction and flush any traces to disk
vmenv := vm.NewEVM(vmctx, statedb, api.eth.blockchain.Config(), vmConf)
_, _, _, err = core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(msg.Gas()))
_, err = core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(msg.Gas()))
if writer != nil {
writer.Flush()
}
@@ -758,7 +758,7 @@ func (api *PrivateDebugAPI) traceTx(ctx context.Context, message core.Message, v
// Run the transaction with tracing enabled.
vmenv := vm.NewEVM(vmctx, statedb, api.eth.blockchain.Config(), vm.Config{Debug: true, Tracer: tracer})
ret, gas, failed, err := core.ApplyMessage(vmenv, message, new(core.GasPool).AddGas(message.Gas()))
result, err := core.ApplyMessage(vmenv, message, new(core.GasPool).AddGas(message.Gas()))
if err != nil {
return nil, fmt.Errorf("tracing failed: %v", err)
}
@@ -766,9 +766,9 @@ func (api *PrivateDebugAPI) traceTx(ctx context.Context, message core.Message, v
switch tracer := tracer.(type) {
case *vm.StructLogger:
return &ethapi.ExecutionResult{
Gas: gas,
Failed: failed,
ReturnValue: fmt.Sprintf("%x", ret),
Gas: result.UsedGas,
Failed: result.Failed(),
ReturnValue: fmt.Sprintf("%x", result.Return()),
StructLogs: ethapi.FormatLogs(tracer.StructLogs()),
}, nil
@@ -812,7 +812,7 @@ func (api *PrivateDebugAPI) computeTxEnv(blockHash common.Hash, txIndex int, ree
}
// Not yet the searched for transaction, execute on top of the current state
vmenv := vm.NewEVM(context, statedb, api.eth.blockchain.Config(), vm.Config{})
if _, _, _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.Gas())); err != nil {
if _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.Gas())); err != nil {
return nil, vm.Context{}, nil, fmt.Errorf("transaction %#x failed: %v", tx.Hash(), err)
}
// Ensure any modifications are committed to the state