func (p *printer) cachedWriteError() error {
	_, err := p.Write(nil)
	return err
}

func (p *printer) writeIndent(depthDelta int) {
	if len(p.prefix) == 0 && len(p.indent) == 0 {
		return
	}
	if depthDelta < 0 {
		p.depth--
		if p.indentedIn {
			p.indentedIn = false
			return
		}
		p.indentedIn = false
	}
	if p.putNewline {