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core, core/vm: implemented a generic environment (#3348)

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Environment is now a struct (not an interface). This
reduces a lot of tech-debt throughout the codebase where a virtual
machine environment had to be implemented in order to test or run it.

The new environment is suitable to be used en the json tests, core
consensus and light client.
This commit is contained in:
Jeffrey Wilcke
2016-12-06 02:16:03 +01:00
committed by Felix Lange
parent 7f79d249a6
commit 3fc7c97827
39 changed files with 961 additions and 1262 deletions
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8
eth/api.go
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@ -515,9 +515,11 @@ func (api *PrivateDebugAPI) TraceTransaction(ctx context.Context, txHash common.
if err != nil {
return nil, fmt.Errorf("sender retrieval failed: %v", err)
}
context := core.NewEVMContext(msg, block.Header(), api.eth.BlockChain())
// Mutate the state if we haven't reached the tracing transaction yet
if uint64(idx) < txIndex {
vmenv := core.NewEnv(stateDb, api.config, api.eth.BlockChain(), msg, block.Header(), vm.Config{})
vmenv := vm.NewEnvironment(context, stateDb, api.config, vm.Config{})
_, _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.Gas()))
if err != nil {
return nil, fmt.Errorf("mutation failed: %v", err)
@ -525,8 +527,8 @@ func (api *PrivateDebugAPI) TraceTransaction(ctx context.Context, txHash common.
stateDb.DeleteSuicides()
continue
}
// Otherwise trace the transaction and return
vmenv := core.NewEnv(stateDb, api.config, api.eth.BlockChain(), msg, block.Header(), vm.Config{Debug: true, Tracer: tracer})
vmenv := vm.NewEnvironment(context, stateDb, api.config, vm.Config{Debug: true, Tracer: tracer})
ret, gas, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.Gas()))
if err != nil {
return nil, fmt.Errorf("tracing failed: %v", err)