20     defaultCompletion(args, argv, current, done) {  argument
22         for (let i = 0, ii = args.length; i < ii; ++i) {
23             if (handlers[args[i]] && handlers[args[i]].builder) {
24                 const builder = handlers[args[i]].builder;
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
44             !this.previousArgHasChoices(args)) {
47                 if (args.indexOf(commandName) === -1) {
59     optionCompletions(completions, args, argv, current) {  argument
61             !this.previousArgHasChoices(args)) {
69                     !this.argsContainKey(args, argv, key, negable)) {
77     choicesCompletions(completions, args, argv, current) {  argument
78         if (this.previousArgHasChoices(args)) {
79             const choices = this.getPreviousArgChoices(args);
85     getPreviousArgChoices(args) {  argument
86         if (args.length < 1)
88         let previousArg = args[args.length - 1];
90         if (!previousArg.startsWith('--') && args.length > 1) {
92             previousArg = args[args.length - 2];
103     previousArgHasChoices(args) {  argument
104         const choices = this.getPreviousArgChoices(args);
107     argsContainKey(args, argv, key, negable) {  argument
108         if (args.indexOf(`--${key}`) !== -1)
110         if (negable && args.indexOf(`--no-${key}`) !== -1)
134     customCompletion(args, argv, current, done) {  argument
154 …ionFunction(current, argv, (onCompleted = done) => this.defaultCompletion(args, argv, current, onC…
164     getCompletion(args, done) {  argument
165         const current = args.length ? args[args.length - 1] : '';
166         const argv = this.yargs.parse(args, true);
168             ? (argv) => this.customCompletion(args, argv, current, done)
169             : (argv) => this.defaultCompletion(args, argv, current, done);