FoundKey/packages/backend/src/misc/schema.ts
tamaina 065324d30b
Fix #8535 Excessive stack ... 'SchemaTypeDef<?>' (#8547)
* Fix #8535 Excessive stack ... 'SchemaTypeDef<?>'

Co-authored-by: acid-chicken <root@acid-chicken.com>

* add comment

* clean up

Co-authored-by: acid-chicken <root@acid-chicken.com>
2022-04-27 10:49:00 +09:00

172 lines
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TypeScript
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import {
packedUserLiteSchema,
packedUserDetailedNotMeOnlySchema,
packedMeDetailedOnlySchema,
packedUserDetailedNotMeSchema,
packedMeDetailedSchema,
packedUserDetailedSchema,
packedUserSchema,
} from '@/models/schema/user.js';
import { packedNoteSchema } from '@/models/schema/note.js';
import { packedUserListSchema } from '@/models/schema/user-list.js';
import { packedAppSchema } from '@/models/schema/app.js';
import { packedMessagingMessageSchema } from '@/models/schema/messaging-message.js';
import { packedNotificationSchema } from '@/models/schema/notification.js';
import { packedDriveFileSchema } from '@/models/schema/drive-file.js';
import { packedDriveFolderSchema } from '@/models/schema/drive-folder.js';
import { packedFollowingSchema } from '@/models/schema/following.js';
import { packedMutingSchema } from '@/models/schema/muting.js';
import { packedBlockingSchema } from '@/models/schema/blocking.js';
import { packedNoteReactionSchema } from '@/models/schema/note-reaction.js';
import { packedHashtagSchema } from '@/models/schema/hashtag.js';
import { packedPageSchema } from '@/models/schema/page.js';
import { packedUserGroupSchema } from '@/models/schema/user-group.js';
import { packedNoteFavoriteSchema } from '@/models/schema/note-favorite.js';
import { packedChannelSchema } from '@/models/schema/channel.js';
import { packedAntennaSchema } from '@/models/schema/antenna.js';
import { packedClipSchema } from '@/models/schema/clip.js';
import { packedFederationInstanceSchema } from '@/models/schema/federation-instance.js';
import { packedQueueCountSchema } from '@/models/schema/queue.js';
import { packedGalleryPostSchema } from '@/models/schema/gallery-post.js';
import { packedEmojiSchema } from '@/models/schema/emoji.js';
export const refs = {
UserLite: packedUserLiteSchema,
UserDetailedNotMeOnly: packedUserDetailedNotMeOnlySchema,
MeDetailedOnly: packedMeDetailedOnlySchema,
UserDetailedNotMe: packedUserDetailedNotMeSchema,
MeDetailed: packedMeDetailedSchema,
UserDetailed: packedUserDetailedSchema,
User: packedUserSchema,
UserList: packedUserListSchema,
UserGroup: packedUserGroupSchema,
App: packedAppSchema,
MessagingMessage: packedMessagingMessageSchema,
Note: packedNoteSchema,
NoteReaction: packedNoteReactionSchema,
NoteFavorite: packedNoteFavoriteSchema,
Notification: packedNotificationSchema,
DriveFile: packedDriveFileSchema,
DriveFolder: packedDriveFolderSchema,
Following: packedFollowingSchema,
Muting: packedMutingSchema,
Blocking: packedBlockingSchema,
Hashtag: packedHashtagSchema,
Page: packedPageSchema,
Channel: packedChannelSchema,
QueueCount: packedQueueCountSchema,
Antenna: packedAntennaSchema,
Clip: packedClipSchema,
FederationInstance: packedFederationInstanceSchema,
GalleryPost: packedGalleryPostSchema,
Emoji: packedEmojiSchema,
};
export type Packed<x extends keyof typeof refs> = SchemaType<typeof refs[x]>;
type TypeStringef = 'null' | 'boolean' | 'integer' | 'number' | 'string' | 'array' | 'object' | 'any';
type StringDefToType<T extends TypeStringef> =
T extends 'null' ? null :
T extends 'boolean' ? boolean :
T extends 'integer' ? number :
T extends 'number' ? number :
T extends 'string' ? string | Date :
T extends 'array' ? ReadonlyArray<any> :
T extends 'object' ? Record<string, any> :
any;
// https://swagger.io/specification/?sbsearch=optional#schema-object
type OfSchema = {
readonly anyOf?: ReadonlyArray<Schema>;
readonly oneOf?: ReadonlyArray<Schema>;
readonly allOf?: ReadonlyArray<Schema>;
}
export interface Schema extends OfSchema {
readonly type?: TypeStringef;
readonly nullable?: boolean;
readonly optional?: boolean;
readonly items?: Schema;
readonly properties?: Obj;
readonly required?: ReadonlyArray<Extract<keyof NonNullable<this['properties']>, string>>;
readonly description?: string;
readonly example?: any;
readonly format?: string;
readonly ref?: keyof typeof refs;
readonly enum?: ReadonlyArray<string>;
readonly default?: (this['type'] extends TypeStringef ? StringDefToType<this['type']> : any) | null;
readonly maxLength?: number;
readonly minLength?: number;
readonly maximum?: number;
readonly minimum?: number;
readonly pattern?: string;
}
type RequiredPropertyNames<s extends Obj> = {
[K in keyof s]:
// K is not optional
s[K]['optional'] extends false ? K :
// K has default value
s[K]['default'] extends null | string | number | boolean | Record<string, unknown> ? K :
never
}[keyof s];
export type Obj = Record<string, Schema>;
// https://github.com/misskey-dev/misskey/issues/8535
// To avoid excessive stack depth error,
// deceive TypeScript with UnionToIntersection (or more precisely, `infer` expression within it).
export type ObjType<s extends Obj, RequiredProps extends keyof s> =
UnionToIntersection<
{ -readonly [R in RequiredPropertyNames<s>]-?: SchemaType<s[R]> } &
{ -readonly [R in RequiredProps]-?: SchemaType<s[R]> } &
{ -readonly [P in keyof s]?: SchemaType<s[P]> }
>;
type NullOrUndefined<p extends Schema, T> =
| (p['nullable'] extends true ? null : never)
| (p['optional'] extends true ? undefined : never)
| T;
// https://stackoverflow.com/questions/54938141/typescript-convert-union-to-intersection
// Get intersection from union
type UnionToIntersection<U> = (U extends any ? (k: U) => void : never) extends ((k: infer I) => void) ? I : never;
// https://github.com/misskey-dev/misskey/pull/8144#discussion_r785287552
// To get union, we use `Foo extends any ? Hoge<Foo> : never`
type UnionSchemaType<a extends readonly any[], X extends Schema = a[number]> = X extends any ? SchemaType<X> : never;
type ArrayUnion<T> = T extends any ? Array<T> : never;
export type SchemaTypeDef<p extends Schema> =
p['type'] extends 'null' ? null :
p['type'] extends 'integer' ? number :
p['type'] extends 'number' ? number :
p['type'] extends 'string' ? (
p['enum'] extends readonly string[] ?
p['enum'][number] :
p['format'] extends 'date-time' ? string : // Dateにする
string
) :
p['type'] extends 'boolean' ? boolean :
p['type'] extends 'object' ? (
p['ref'] extends keyof typeof refs ? Packed<p['ref']> :
p['properties'] extends NonNullable<Obj> ? ObjType<p['properties'], NonNullable<p['required']>[number]> :
p['anyOf'] extends ReadonlyArray<Schema> ? UnionSchemaType<p['anyOf']> & Partial<UnionToIntersection<UnionSchemaType<p['anyOf']>>> :
p['allOf'] extends ReadonlyArray<Schema> ? UnionToIntersection<UnionSchemaType<p['allOf']>> :
any
) :
p['type'] extends 'array' ? (
p['items'] extends OfSchema ? (
p['items']['anyOf'] extends ReadonlyArray<Schema> ? UnionSchemaType<NonNullable<p['items']['anyOf']>>[] :
p['items']['oneOf'] extends ReadonlyArray<Schema> ? ArrayUnion<UnionSchemaType<NonNullable<p['items']['oneOf']>>> :
p['items']['allOf'] extends ReadonlyArray<Schema> ? UnionToIntersection<UnionSchemaType<NonNullable<p['items']['allOf']>>>[] :
never
) :
p['items'] extends NonNullable<Schema> ? SchemaTypeDef<p['items']>[] :
any[]
) :
p['oneOf'] extends ReadonlyArray<Schema> ? UnionSchemaType<p['oneOf']> :
any;
export type SchemaType<p extends Schema> = NullOrUndefined<p, SchemaTypeDef<p>>;