Function MakeScriptTokenizer

txscript/tokenizer.go:194–209

MakeScriptTokenizer returns a new instance of a script tokenizer. Passing an unsupported script version will result in the returned tokenizer immediately having an err set accordingly. See the docs for ScriptTokenizer for more details.

(scriptVersion uint16, script []byte)

//
// See the docs for ScriptTokenizer for more details.
func MakeScriptTokenizer(scriptVersion uint16, script []byte) ScriptTokenizer {
	// Only version 0 scripts are currently supported.
	var err error
	if scriptVersion != 0 {
		str := fmt.Sprintf("script version %d is not supported", scriptVersion)
		err = scriptError(ErrUnsupportedScriptVersion, str)

	}
	return ScriptTokenizer{
		version: scriptVersion,
		script:  script,
		err:     err,
		// We use a value of negative 1 here so the first op code has a value of 0.
		opcodePos: -1,
	}
}