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cmd/evm: accept --input for disasm command #20548

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Merged
merged 1 commit into from
Jan 27, 2020
Merged

cmd/evm: accept --input for disasm command #20548

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23 changes: 14 additions & 9 deletions cmd/evm/disasm.go
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Original file line number Diff line number Diff line change
Expand Up @@ -34,17 +34,22 @@ var disasmCommand = cli.Command{
}

func disasmCmd(ctx *cli.Context) error {
if len(ctx.Args().First()) == 0 {
return errors.New("filename required")
var in string
switch {
case len(ctx.Args().First()) > 0:
fn := ctx.Args().First()
input, err := ioutil.ReadFile(fn)
if err != nil {
return err
}
in = string(input)
case ctx.GlobalIsSet(InputFlag.Name):
in = ctx.GlobalString(InputFlag.Name)
default:
return errors.New("Missing filename or --input value")
}

fn := ctx.Args().First()
in, err := ioutil.ReadFile(fn)
if err != nil {
return err
}

code := strings.TrimSpace(string(in))
code := strings.TrimSpace(in)
fmt.Printf("%v\n", code)
return asm.PrintDisassembled(code)
}