Method AddData

txscript/scriptbuilder.go:224–252

AddData pushes the passed data to the end of the script. It automatically chooses canonical opcodes depending on the length of the data. A zero length buffer will lead to a push of empty data onto the stack (OP_0) and any push of data greater than MaxScriptElementSize will not modify the script si

(data []byte)

// modified if pushing the data would cause the script to exceed the maximum
// allowed script engine size.
func (b *ScriptBuilder) AddData(data []byte) *ScriptBuilder {
	if b.err != nil {
		return b
	}

	// Pushes that would cause the script to exceed the largest allowed
	// script size would result in a non-canonical script.
	dataSize := canonicalDataSize(data)
	if len(b.script)+dataSize > MaxScriptSize {
		str := fmt.Sprintf("adding %d bytes of data would exceed the "+
			"maximum allowed canonical script length of %d",
			dataSize, MaxScriptSize)
		b.err = ErrScriptNotCanonical(str)
		return b
	}

	// Pushes larger than the max script element size would result in a
	// script that is not canonical.
	dataLen := len(data)
	if dataLen > MaxScriptElementSize {
		str := fmt.Sprintf("adding a data element of %d bytes would "+
			"exceed the maximum allowed script element size of %d",
			dataLen, MaxScriptElementSize)
		b.err = ErrScriptNotCanonical(str)
		return b
	}

	return b.addData(data)
}

// AddInt64 pushes the passed integer to the end of the script.  The script will
// not be modified if pushing the data would cause the script to exceed the