20     defaultCompletion(args, argv, current, done) {  argument
33         this.commandCompletions(completions, args, current);
34         this.optionCompletions(completions, args, argv, current);
35         this.choicesCompletions(completions, args, argv, current);
38     commandCompletions(completions, args, current) {  argument
42         if (!current.match(/^-/) &&
43             parentCommands[parentCommands.length - 1] !== current &&
59     optionCompletions(completions, args, argv, current) {  argument
60         if ((current.match(/^-/) || (current === '' && completions.length === 0)) &&
70                     this.completeOptionKey(key, completions, current);
72                         this.completeOptionKey(`no-${key}`, completions, current);
77     choicesCompletions(completions, args, argv, current) {  argument
120     completeOptionKey(key, completions, current) {  argument
124         const dashes = !startsByTwoDashes(current) && isShortOption(key) ? '-' : '--';
134     customCompletion(args, argv, current, done) {  argument
137             const result = this.customCompletionFunction(current, argv);
154 …eturn this.customCompletionFunction(current, argv, (onCompleted = done) => this.defaultCompletion(…
159             return this.customCompletionFunction(current, argv, completions => {
165         const current = args.length ? args[args.length - 1] : '';
168             ? (argv) => this.customCompletion(args, argv, current, done)
169             : (argv) => this.defaultCompletion(args, argv, current, done);