Method DisasmScript

txscript/engine.go:905–923

DisasmScript returns the disassembly string for the script at the requested offset index. Index 0 is the signature script and 1 is the public key script. In the case of pay-to-script-hash, index 2 is the redeem script once the execution has progressed far enough to have successfully verified scrip

(idx int)

// the execution has progressed far enough to have successfully verified script
// hash and thus add the script to the scripts to execute.
func (vm *Engine) DisasmScript(idx int) (string, error) {
	if idx >= len(vm.scripts) {
		str := fmt.Sprintf("script index %d >= total scripts %d", idx,
			len(vm.scripts))
		return "", scriptError(ErrInvalidIndex, str)
	}

	var disbuf strings.Builder
	script := vm.scripts[idx]
	tokenizer := MakeScriptTokenizer(vm.version, script)
	var opcodeIdx int
	for tokenizer.Next() {
		disbuf.WriteString(fmt.Sprintf("%02x:%04x: ", idx, opcodeIdx))
		disasmOpcode(&disbuf, tokenizer.op, tokenizer.Data(), false)
		disbuf.WriteByte('\n')
		opcodeIdx++
	}
	return disbuf.String(), tokenizer.Err()
}

// CheckErrorCondition returns nil if the running script has ended and was
// successful, leaving a a true boolean on the stack.  An error otherwise,