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| author | Eleanor Eng <eleanor_eng@brown.edu> | 2019-06-04 10:29:02 -0400 |
|---|---|---|
| committer | Eleanor Eng <eleanor_eng@brown.edu> | 2019-06-04 10:29:02 -0400 |
| commit | 376ebd44a16dfa04aacd3582e87767aed1a01f36 (patch) | |
| tree | 3a9e623cf6689e1ea6975954596bf5bda6303249 /src/new_fields/Types.ts | |
| parent | 8f14e688220096ccecfd1aa0dd54b00e48f92270 (diff) | |
| parent | 6f49d067b58caf6297f7ae7687cf05b627c27a1d (diff) | |
merge with master
Diffstat (limited to 'src/new_fields/Types.ts')
| -rw-r--r-- | src/new_fields/Types.ts | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/src/new_fields/Types.ts b/src/new_fields/Types.ts index 60f08dc90..c04dd5e6d 100644 --- a/src/new_fields/Types.ts +++ b/src/new_fields/Types.ts @@ -1,12 +1,14 @@ -import { Field, Opt, FieldResult } from "./Doc"; +import { Field, Opt, FieldResult, Doc } from "./Doc"; import { List } from "./List"; +import { RefField } from "./RefField"; -export type ToType<T extends ToConstructor<Field> | ListSpec<Field>> = +export type ToType<T extends ToConstructor<Field> | ListSpec<Field> | DefaultFieldConstructor<Field>> = T extends "string" ? string : T extends "number" ? number : T extends "boolean" ? boolean : T extends ListSpec<infer U> ? List<U> : // T extends { new(...args: any[]): infer R } ? (R | Promise<R>) : never; + T extends DefaultFieldConstructor<infer _U> ? never : T extends { new(...args: any[]): List<Field> } ? never : T extends { new(...args: any[]): infer R } ? R : never; @@ -18,12 +20,17 @@ export type ToConstructor<T extends Field> = new (...args: any[]) => T; export type ToInterface<T extends Interface> = { - [P in Exclude<keyof T, "proto">]: FieldResult<ToType<T[P]>>; + [P in Exclude<keyof T, "proto">]: T[P] extends DefaultFieldConstructor<infer F> ? Exclude<FieldResult<F>, undefined> : FieldResult<ToType<T[P]>>; }; // type ListSpec<T extends Field[]> = { List: ToContructor<Head<T>> | ListSpec<Tail<T>> }; export type ListSpec<T extends Field> = { List: ToConstructor<T> }; +export type DefaultFieldConstructor<T extends Field> = { + type: ToConstructor<T>, + defaultVal: T +}; + // type ListType<U extends Field[]> = { 0: List<ListType<Tail<U>>>, 1: ToType<Head<U>> }[HasTail<U> extends true ? 0 : 1]; export type Head<T extends any[]> = T extends [any, ...any[]] ? T[0] : never; @@ -33,7 +40,7 @@ export type HasTail<T extends any[]> = T extends ([] | [any]) ? false : true; //TODO Allow you to optionally specify default values for schemas, which should then make that field not be partial export interface Interface { - [key: string]: ToConstructor<Field> | ListSpec<Field>; + [key: string]: ToConstructor<Field> | ListSpec<Field> | DefaultFieldConstructor<Field>; // [key: string]: ToConstructor<Field> | ListSpec<Field[]>; } @@ -71,7 +78,7 @@ export function BoolCast(field: FieldResult, defaultVal: boolean | null = null) return Cast(field, "boolean", defaultVal); } -type WithoutList<T extends Field> = T extends List<infer R> ? R[] : T; +type WithoutList<T extends Field> = T extends List<infer R> ? (R extends RefField ? (R | Promise<R>)[] : R[]) : T; export function FieldValue<T extends Field, U extends WithoutList<T>>(field: FieldResult<T>, defaultValue: U): WithoutList<T>; export function FieldValue<T extends Field>(field: FieldResult<T>): Opt<T>; |
