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@ -294,9 +294,13 @@ export type StreamMessages = {
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//#endregion
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// API event definitions
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type EventsDictionary = { [x in keyof StreamMessages]: { [y in StreamMessages[x]['name']]: (e: StreamMessages[x]['spec']) => void } };
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type Events<D> = (D extends any ? (k: D) => void : never) extends ((k: infer E) => void) ? E : never;
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export type StreamEventEmitter = Emitter<EventEmitter, Events<EventsDictionary[keyof StreamMessages]>>;
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// ストリームごとのEmitterの辞書を用意
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type EventsDictionary = { [x in keyof StreamMessages]: Emitter<EventEmitter, { [y in StreamMessages[x]['name']]: (e: StreamMessages[x]['spec']) => void }> };
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// 共用体型を交差型にする型 https://stackoverflow.com/questions/54938141/typescript-convert-union-to-intersection
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type UnionToIntersection<U> = (U extends any ? (k: U) => void : never) extends ((k: infer I) => void) ? I : never;
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// Emitter辞書をストリームごとに共用体型にし、UnionToIntersectionで交差型にする
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export type StreamEventEmitter = UnionToIntersection<EventsDictionary[keyof StreamMessages]>;
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// そうしないとなぜかユニオン型が増えまくり、ts(2590)にひっかかる
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// provide stream channels union
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export type StreamChannels = StreamMessages[keyof StreamMessages]['name'] | 'notesStream';
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