From 065324d30bddd2cf1ec48cb539cbb4b43c7b4169 Mon Sep 17 00:00:00 2001 From: tamaina Date: Wed, 27 Apr 2022 10:49:00 +0900 Subject: [PATCH] Fix #8535 Excessive stack ... 'SchemaTypeDef' (#8547) * Fix #8535 Excessive stack ... 'SchemaTypeDef' Co-authored-by: acid-chicken * add comment * clean up Co-authored-by: acid-chicken --- packages/backend/src/misc/schema.ts | 35 ++++++++++++++++------------- 1 file changed, 20 insertions(+), 15 deletions(-) diff --git a/packages/backend/src/misc/schema.ts b/packages/backend/src/misc/schema.ts index 9da13d599b..fdecc278d4 100644 --- a/packages/backend/src/misc/schema.ts +++ b/packages/backend/src/misc/schema.ts @@ -98,6 +98,9 @@ export interface Schema extends OfSchema { readonly default?: (this['type'] extends TypeStringef ? StringDefToType : any) | null; readonly maxLength?: number; readonly minLength?: number; + readonly maximum?: number; + readonly minimum?: number; + readonly pattern?: string; } type RequiredPropertyNames = { @@ -105,24 +108,26 @@ type RequiredPropertyNames = { // K is not optional s[K]['optional'] extends false ? K : // K has default value - s[K]['default'] extends null | string | number | boolean | Record ? K : never + s[K]['default'] extends null | string | number | boolean | Record ? K : + never }[keyof s]; -export interface Obj { [key: string]: Schema; } +export type Obj = Record; +// 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 = - { -readonly [P in keyof s]?: SchemaType } & - { -readonly [P in RequiredProps]: SchemaType } & - { -readonly [P in RequiredPropertyNames]: SchemaType }; + UnionToIntersection< + { -readonly [R in RequiredPropertyNames]-?: SchemaType } & + { -readonly [R in RequiredProps]-?: SchemaType } & + { -readonly [P in keyof s]?: SchemaType } + >; type NullOrUndefined

= - p['nullable'] extends true - ? p['optional'] extends true - ? (T | null | undefined) - : (T | null) - : p['optional'] extends true - ? (T | undefined) - : 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 @@ -139,9 +144,9 @@ export type SchemaTypeDef

= 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['enum'][number] : + p['format'] extends 'date-time' ? string : // Dateにする?? + string ) : p['type'] extends 'boolean' ? boolean : p['type'] extends 'object' ? (