package parser

import "asciigoat.org/core/lexer"

func (p *Parser) emitError(content string, err error) (lexer.StateFn, error) {
	err2 := p.OnError(p.pos, content, err)
	switch {
	case err2 != nil:
		// return wrapped error
		return nil, err2
	default:
		// return original error
		return nil, err
	}
}

func (p *Parser) emitInvalidRune(r rune) (lexer.StateFn, error) {
	return p.emitError(string([]rune{r}), lexer.ErrUnacceptableRune)
}