internal/ethapi: add block overrides to eth_call (#26414)

Adds an optional config parameter to eth_call which allows users to override block context fields (same functionality that was added to traceCall in #24871)

---------

Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit is contained in:
Sina Mahmoodi
2023-05-02 04:28:43 -04:00
committed by GitHub
co-authored by Martin Holst Swende
parent 52c246fac3
commit ae66009640
11 changed files with 674 additions and 40 deletions
+7 -2
View File
@@ -246,12 +246,17 @@ func (b *EthAPIBackend) GetTd(ctx context.Context, hash common.Hash) *big.Int {
return nil
}
func (b *EthAPIBackend) GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config) (*vm.EVM, func() error, error) {
func (b *EthAPIBackend) GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockCtx *vm.BlockContext) (*vm.EVM, func() error, error) {
if vmConfig == nil {
vmConfig = b.eth.blockchain.GetVMConfig()
}
txContext := core.NewEVMTxContext(msg)
context := core.NewEVMBlockContext(header, b.eth.BlockChain(), nil)
var context vm.BlockContext
if blockCtx != nil {
context = *blockCtx
} else {
context = core.NewEVMBlockContext(header, b.eth.BlockChain(), nil)
}
return vm.NewEVM(context, txContext, state, b.eth.blockchain.Config(), *vmConfig), state.Error, nil
}
+1 -25
View File
@@ -100,34 +100,10 @@ func NewAPI(backend Backend) *API {
return &API{backend: backend}
}
type chainContext struct {
api *API
ctx context.Context
}
func (context *chainContext) Engine() consensus.Engine {
return context.api.backend.Engine()
}
func (context *chainContext) GetHeader(hash common.Hash, number uint64) *types.Header {
header, err := context.api.backend.HeaderByNumber(context.ctx, rpc.BlockNumber(number))
if err != nil {
return nil
}
if header.Hash() == hash {
return header
}
header, err = context.api.backend.HeaderByHash(context.ctx, hash)
if err != nil {
return nil
}
return header
}
// chainContext constructs the context reader which is used by the evm for reading
// the necessary chain context.
func (api *API) chainContext(ctx context.Context) core.ChainContext {
return &chainContext{api: api, ctx: ctx}
return ethapi.NewChainContext(ctx, api.backend)
}
// blockByNumber is the wrapper of the chain access function offered by the backend.