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clean up?

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tamaina 2021-09-12 23:49:21 +09:00
parent 9f4ad3c873
commit 2a591861e7
1 changed files with 12 additions and 11 deletions
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23
src/server/api/stream/types.ts
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@ -17,14 +17,6 @@ import { Signin } from '@/models/entities/signin';
import { Page } from '@/models/entities/page'; import { Page } from '@/models/entities/page';
import { Packed } from '@/misc/schema'; import { Packed } from '@/misc/schema';
// 辞書(interface or type)から{ type, body }ユニオンを定義
// https://stackoverflow.com/questions/49311989/can-i-infer-the-type-of-a-value-using-extends-keyof-type
type EventUnions<T extends object> = { [K in keyof T]: { type: K; body: T[K]; } };
type EventUnionFromDictionary<
T extends object,
U = EventUnions<T>
> = U[keyof U];
//#region Stream type-body definitions //#region Stream type-body definitions
export interface InternalStreamTypes { export interface InternalStreamTypes {
antennaCreated: Antenna; antennaCreated: Antenna;
@ -217,6 +209,15 @@ export interface AdminStreamTypes {
} }
//#endregion //#endregion
// 辞書(interface or type)から{ type, body }ユニオンを定義
// https://stackoverflow.com/questions/49311989/can-i-infer-the-type-of-a-value-using-extends-keyof-type
// VS Codeの展開を防止するためにEvents型を定義
type Events<T extends object> = { [K in keyof T]: { type: K; body: T[K]; } };
type EventUnionFromDictionary<
T extends object,
U = Events<T>
> = U[keyof U];
// name/messages(spec) pairs dictionary // name/messages(spec) pairs dictionary
export type StreamMessages = { export type StreamMessages = {
internal: { internal: {
@ -287,11 +288,11 @@ export type StreamMessages = {
// API event definitions // API event definitions
// ストリームごとのEmitterの辞書を用意 // ストリームごとのEmitterの辞書を用意
type EventsDictionary = { [x in keyof StreamMessages]: Emitter<EventEmitter, { [y in StreamMessages[x]['name']]: (e: StreamMessages[x]['spec']) => void }> }; type EventEmitterDictionary = { [x in keyof StreamMessages]: Emitter<EventEmitter, { [y in StreamMessages[x]['name']]: (e: StreamMessages[x]['spec']) => void }> };
// 共用体型を交差型にする型 https://stackoverflow.com/questions/54938141/typescript-convert-union-to-intersection // 共用体型を交差型にする型 https://stackoverflow.com/questions/54938141/typescript-convert-union-to-intersection
type UnionToIntersection<U> = (U extends any ? (k: U) => void : never) extends ((k: infer I) => void) ? I : never; type UnionToIntersection<U> = (U extends any ? (k: U) => void : never) extends ((k: infer I) => void) ? I : never;
// 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 // Emitter辞書から共用体型を作り、UnionToIntersectionで交差型にする
export type StreamEventEmitter = UnionToIntersection<EventsDictionary[keyof StreamMessages]>; export type StreamEventEmitter = UnionToIntersection<EventEmitterDictionary[keyof StreamMessages]>;
// { [y in name]: (e: spec) => void }をまとめてその交差型をEmitterにかけるとts(2590)にひっかかる // { [y in name]: (e: spec) => void }をまとめてその交差型をEmitterにかけるとts(2590)にひっかかる
// provide stream channels union // provide stream channels union