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cmd/evm: added --create flag indicating the exec code is to be created

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This fixes an issue if you wanted to test out code deployment rather
than running a piece of code with an argument. This solves it by adding
a --create flag that indicates the Create function should be used rather
than the Call function.

This also adds a statedb.commit call so that the proper state can be
dumped when requested using the --dump flag.
This commit is contained in:
Jeffrey Wilcke 2016-06-14 16:09:27 +02:00
parent 970f4c06e1
commit e5165aeb27
1 changed files with 34 additions and 11 deletions
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45
cmd/evm/main.go
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@ -84,11 +84,16 @@ var (
Name: "verbosity",
Usage: "sets the verbosity level",
}
CreateFlag = cli.BoolFlag{
Name: "create",
Usage: "indicates the action should be create rather than call",
}
)
func init() {
app = utils.NewApp("0.2", "the evm command line interface")
app.Flags = []cli.Flag{
CreateFlag,
DebugFlag,
VerbosityFlag,
ForceJitFlag,
@ -111,8 +116,6 @@ func run(ctx *cli.Context) error {
db, _ := ethdb.NewMemDatabase()
statedb, _ := state.New(common.Hash{}, db)
sender := statedb.CreateAccount(common.StringToAddress("sender"))
receiver := statedb.CreateAccount(common.StringToAddress("receiver"))
receiver.SetCode(common.Hex2Bytes(ctx.GlobalString(CodeFlag.Name)))
vmenv := NewEnv(statedb, common.StringToAddress("evmuser"), common.Big(ctx.GlobalString(ValueFlag.Name)), vm.Config{
Debug: ctx.GlobalBool(DebugFlag.Name),
@ -121,17 +124,37 @@ func run(ctx *cli.Context) error {
})
tstart := time.Now()
ret, e := vmenv.Call(
sender,
receiver.Address(),
common.Hex2Bytes(ctx.GlobalString(InputFlag.Name)),
common.Big(ctx.GlobalString(GasFlag.Name)),
common.Big(ctx.GlobalString(PriceFlag.Name)),
common.Big(ctx.GlobalString(ValueFlag.Name)),
var (
ret []byte
err error
)
if ctx.GlobalBool(CreateFlag.Name) {
input := append(common.Hex2Bytes(ctx.GlobalString(CodeFlag.Name)), common.Hex2Bytes(ctx.GlobalString(InputFlag.Name))...)
ret, _, err = vmenv.Create(
sender,
input,
common.Big(ctx.GlobalString(GasFlag.Name)),
common.Big(ctx.GlobalString(PriceFlag.Name)),
common.Big(ctx.GlobalString(ValueFlag.Name)),
)
} else {
receiver := statedb.CreateAccount(common.StringToAddress("receiver"))
receiver.SetCode(common.Hex2Bytes(ctx.GlobalString(CodeFlag.Name)))
ret, err = vmenv.Call(
sender,
receiver.Address(),
common.Hex2Bytes(ctx.GlobalString(InputFlag.Name)),
common.Big(ctx.GlobalString(GasFlag.Name)),
common.Big(ctx.GlobalString(PriceFlag.Name)),
common.Big(ctx.GlobalString(ValueFlag.Name)),
)
}
vmdone := time.Since(tstart)
if ctx.GlobalBool(DumpFlag.Name) {
statedb.Commit()
fmt.Println(string(statedb.Dump()))
}
vm.StdErrFormat(vmenv.StructLogs())
@ -150,8 +173,8 @@ num gc: %d
}
fmt.Printf("OUT: 0x%x", ret)
if e != nil {
fmt.Printf(" error: %v", e)
if err != nil {
fmt.Printf(" error: %v", err)
}
fmt.Println()
return nil