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create ToMessage method

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This commit is contained in:
William Morriss 2020-04-01 20:06:59 -07:00
parent f15849cf00
commit 56462e721a
1 changed files with 37 additions and 32 deletions
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69
internal/ethapi/api.go
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@ -739,6 +739,42 @@ type CallArgs struct {
Data *hexutil.Bytes `json:"data"`
}
func (args *CallArgs) ToMessage(globalGasCap *big.Int) types.Message {
// Set sender address or use zero address if none specified.
var addr common.Address
if args.From != nil {
addr = *args.From
}
// Set default gas & gas price if none were set
gas := uint64(math.MaxUint64 / 2)
if args.Gas != nil {
gas = uint64(*args.Gas)
}
if globalGasCap != nil && globalGasCap.Uint64() < gas {
log.Warn("Caller gas above allowance, capping", "requested", gas, "cap", globalGasCap)
gas = globalGasCap.Uint64()
}
gasPrice := new(big.Int)
if args.GasPrice != nil {
gasPrice = args.GasPrice.ToInt()
}
value := new(big.Int)
if args.Value != nil {
value = args.Value.ToInt()
}
var data []byte
if args.Data != nil {
data = []byte(*args.Data)
}
// Create new call message
msg := types.NewMessage(addr, args.To, 0, value, gas, gasPrice, data, false)
return msg
}
// account indicates the overriding fields of account during the execution of
// a message call.
// Note, state and stateDiff can't be specified at the same time. If state is
@ -761,12 +797,6 @@ func DoCall(ctx context.Context, b Backend, args CallArgs, blockNrOrHash rpc.Blo
return nil, 0, false, err
}
// Set sender address or use zero address if none specified.
var addr common.Address
if args.From != nil {
addr = *args.From
}
// Override the fields of specified contracts before execution.
for addr, account := range overrides {
// Override account nonce.
@ -795,32 +825,6 @@ func DoCall(ctx context.Context, b Backend, args CallArgs, blockNrOrHash rpc.Blo
}
}
}
// Set default gas & gas price if none were set
gas := uint64(math.MaxUint64 / 2)
if args.Gas != nil {
gas = uint64(*args.Gas)
}
if globalGasCap != nil && globalGasCap.Uint64() < gas {
log.Warn("Caller gas above allowance, capping", "requested", gas, "cap", globalGasCap)
gas = globalGasCap.Uint64()
}
gasPrice := new(big.Int)
if args.GasPrice != nil {
gasPrice = args.GasPrice.ToInt()
}
value := new(big.Int)
if args.Value != nil {
value = args.Value.ToInt()
}
var data []byte
if args.Data != nil {
data = []byte(*args.Data)
}
// Create new call message
msg := types.NewMessage(addr, args.To, 0, value, gas, gasPrice, data, false)
// Setup context so it may be cancelled the call has completed
// or, in case of unmetered gas, setup a context with a timeout.
@ -835,6 +839,7 @@ func DoCall(ctx context.Context, b Backend, args CallArgs, blockNrOrHash rpc.Blo
defer cancel()
// Get a new instance of the EVM.
msg := args.ToMessage(globalGasCap)
evm, vmError, err := b.GetEVM(ctx, msg, state, header)
if err != nil {
return nil, 0, false, err