Choice7<I, O> constructor
Choice7<I, O> ()
Implementation
Choice7(this.p1, this.p2, this.p3, this.p4, this.p5, this.p6, this.p7) {
label = '(${[p1, p2, p3, p4, p5, p6, p7].map(Parser.quote).join(' | ')})';
}