Method matchDecorator

sup/parser-values.go:107–122

We pass both any and val in here to avoid having to backtrack. If we had proper backtracking, this would look a little more sensible.

(any ast.Any, val ast.Value)

// We pass both any and val in here to avoid having to backtrack.
// If we had proper backtracking, this would look a little more sensible.
func (p *Parser) matchDecorator(any ast.Any, val ast.Value) (ast.Value, bool, error) {
	l := p.lexer
	// If there isn't a decorator, just return.  A decorator cannot start
	// with ":::" so we check this condition which arises when an IP6 address or net
	// with a "::" prefix follows a map key (and so we are checking for a decorator
	// here after the key value but before the key colon).
	if lookahead, err := l.peek3(); err != nil || lookahead == "" || lookahead[:2] != "::" || lookahead == ":::" {
		return nil, false, err
	}
	l.skip(2)
	val, err := p.parseDecorator(any, val)
	if noEOF(err) != nil {
		return nil, false, err
	}
	return val, true, nil
}

func (p *Parser) parseDecorator(any ast.Any, val ast.Value) (ast.Value, error) {
	l := p.lexer