Method expect

package_text.go:88–96

(tok rune)

}

func (p *gc_parser) expect(tok rune) string {
	lit := p.lit
	if p.tok != tok {
		p.errorf("expected %s, got %s (%q)", scanner.TokenString(tok),
			scanner.TokenString(p.tok), lit)
	}
	p.next()
	return lit
}

func (p *gc_parser) expect_keyword(keyword string) {
	lit := p.expect(scanner.Ident)