383 lines
11 KiB
TypeScript
383 lines
11 KiB
TypeScript
/**
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* @since 2.0.0
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*/
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import type * as _Cache from "./Cache.js";
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import type { Cause } from "./Cause.js";
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import type { Deferred } from "./Deferred.js";
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import type { DurationInput } from "./Duration.js";
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import type * as Effect from "./Effect.js";
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import type * as Exit from "./Exit.js";
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import type { FiberId } from "./FiberId.js";
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import type * as Option from "./Option.js";
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import type * as Types from "./Types.js";
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/**
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* @since 2.0.0
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* @category symbols
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*/
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export declare const RequestTypeId: unique symbol;
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/**
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* @since 2.0.0
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* @category symbols
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*/
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export type RequestTypeId = typeof RequestTypeId;
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/**
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* A `Request<A, E>` is a request from a data source for a value of type `A`
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* that may fail with an `E`.
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*
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* @since 2.0.0
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* @category models
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*/
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export interface Request<out A, out E = never> extends Request.Variance<A, E> {
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}
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/**
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* @since 2.0.0
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*/
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export declare namespace Request {
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/**
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* @since 2.0.0
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* @category models
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*/
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interface Variance<out A, out E> {
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readonly [RequestTypeId]: {
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readonly _A: Types.Covariant<A>;
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readonly _E: Types.Covariant<E>;
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};
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}
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/**
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* @since 2.0.0
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* @category models
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*/
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interface Constructor<R extends Request<any, any>, T extends keyof R = never> {
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(args: Omit<R, T | keyof (Request.Variance<Request.Success<R>, Request.Error<R>>)>): R;
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}
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/**
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* A utility type to extract the error type from a `Request`.
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*
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* @since 2.0.0
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* @category type-level
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*/
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type Error<T extends Request<any, any>> = [T] extends [Request<infer _A, infer _E>] ? _E : never;
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/**
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* A utility type to extract the value type from a `Request`.
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*
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* @since 2.0.0
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* @category type-level
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*/
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type Success<T extends Request<any, any>> = [T] extends [Request<infer _A, infer _E>] ? _A : never;
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/**
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* A utility type to extract the result type from a `Request`.
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*
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* @since 2.0.0
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* @category type-level
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*/
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type Result<T extends Request<any, any>> = T extends Request<infer A, infer E> ? Exit.Exit<A, E> : never;
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/**
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* A utility type to extract the optional result type from a `Request`.
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*
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* @since 2.0.0
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* @category type-level
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*/
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type OptionalResult<T extends Request<any, any>> = T extends Request<infer A, infer E> ? Exit.Exit<Option.Option<A>, E> : never;
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}
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/**
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* Returns `true` if the specified value is a `Request`, `false` otherwise.
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*
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* @since 2.0.0
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* @category refinements
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*/
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export declare const isRequest: (u: unknown) => u is Request<unknown, unknown>;
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/**
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* Constructs a new `Request`.
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*
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* @since 2.0.0
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* @category constructors
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*/
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export declare const of: <R extends Request<any, any>>() => Request.Constructor<R>;
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/**
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* Constructs a new `Request`.
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*
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* @since 2.0.0
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* @category constructors
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*/
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export declare const tagged: <R extends Request<any, any> & {
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_tag: string;
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}>(tag: R["_tag"]) => Request.Constructor<R, "_tag">;
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/**
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* Provides a constructor for a Request Class.
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*
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* @example
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* ```ts
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* import { Request } from "effect"
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*
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* type Success = string
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* type Error = never
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*
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* class MyRequest extends Request.Class<Success, Error, {
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* readonly id: string
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* }> {}
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* ```
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*
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* @since 2.0.0
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* @category constructors
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*/
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export declare const Class: new <Success, Error, A extends Record<string, any>>(args: Types.Equals<Omit<A, keyof Request<unknown, unknown>>, {}> extends true ? void : {
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readonly [P in keyof A as P extends keyof Request<unknown, unknown> ? never : P]: A[P];
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}) => Request<Success, Error> & Readonly<A>;
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/**
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* Provides a Tagged constructor for a Request Class.
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*
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* @example
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* ```ts
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* import { Request } from "effect"
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*
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* type Success = string
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* type Error = never
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*
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* class MyRequest extends Request.TaggedClass("MyRequest")<Success, Error, {
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* readonly name: string
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* }> {}
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* ```
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*
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* @since 2.0.0
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* @category constructors
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*/
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export declare const TaggedClass: <Tag extends string>(tag: Tag) => new <Success, Error, A extends Record<string, any>>(args: Types.Equals<Omit<A, keyof Request<unknown, unknown>>, {}> extends true ? void : {
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readonly [P in keyof A as P extends "_tag" | keyof Request<unknown, unknown> ? never : P]: A[P];
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}) => Request<Success, Error> & Readonly<A> & {
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readonly _tag: Tag;
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};
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/**
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* Complete a `Request` with the specified result.
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*
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* @since 2.0.0
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* @category request completion
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*/
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export declare const complete: {
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/**
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* Complete a `Request` with the specified result.
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*
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* @since 2.0.0
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* @category request completion
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*/
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<A extends Request<any, any>>(result: Request.Result<A>): (self: A) => Effect.Effect<void>;
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/**
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* Complete a `Request` with the specified result.
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*
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* @since 2.0.0
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* @category request completion
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*/
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<A extends Request<any, any>>(self: A, result: Request.Result<A>): Effect.Effect<void>;
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};
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/**
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* Interrupts the child effect when requests are no longer needed
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*
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* @since 2.0.0
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* @category request completion
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*/
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export declare const interruptWhenPossible: {
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/**
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* Interrupts the child effect when requests are no longer needed
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*
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* @since 2.0.0
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* @category request completion
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*/
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(all: Iterable<Request<any, any>>): <A, E, R>(self: Effect.Effect<A, E, R>) => Effect.Effect<void, E, R>;
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/**
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* Interrupts the child effect when requests are no longer needed
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*
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* @since 2.0.0
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* @category request completion
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*/
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<A, E, R>(self: Effect.Effect<A, E, R>, all: Iterable<Request<any, any>>): Effect.Effect<void, E, R>;
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};
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/**
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* Complete a `Request` with the specified effectful computation, failing the
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* request with the error from the effect workflow if it fails, and completing
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* the request with the value of the effect workflow if it succeeds.
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*
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* @since 2.0.0
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* @category request completion
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*/
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export declare const completeEffect: {
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/**
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* Complete a `Request` with the specified effectful computation, failing the
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* request with the error from the effect workflow if it fails, and completing
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* the request with the value of the effect workflow if it succeeds.
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*
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* @since 2.0.0
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* @category request completion
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*/
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<A extends Request<any, any>, R>(effect: Effect.Effect<Request.Success<A>, Request.Error<A>, R>): (self: A) => Effect.Effect<void, never, R>;
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/**
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* Complete a `Request` with the specified effectful computation, failing the
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* request with the error from the effect workflow if it fails, and completing
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* the request with the value of the effect workflow if it succeeds.
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*
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* @since 2.0.0
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* @category request completion
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*/
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<A extends Request<any, any>, R>(self: A, effect: Effect.Effect<Request.Success<A>, Request.Error<A>, R>): Effect.Effect<void, never, R>;
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};
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/**
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* Complete a `Request` with the specified error.
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*
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* @since 2.0.0
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* @category request completion
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*/
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export declare const fail: {
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/**
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* Complete a `Request` with the specified error.
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*
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* @since 2.0.0
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* @category request completion
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*/
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<A extends Request<any, any>>(error: Request.Error<A>): (self: A) => Effect.Effect<void>;
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/**
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* Complete a `Request` with the specified error.
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*
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* @since 2.0.0
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* @category request completion
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*/
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<A extends Request<any, any>>(self: A, error: Request.Error<A>): Effect.Effect<void>;
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};
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/**
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* Complete a `Request` with the specified cause.
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*
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* @since 2.0.0
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* @category request completion
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*/
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export declare const failCause: {
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/**
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* Complete a `Request` with the specified cause.
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*
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* @since 2.0.0
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* @category request completion
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*/
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<A extends Request<any, any>>(cause: Cause<Request.Error<A>>): (self: A) => Effect.Effect<void>;
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/**
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* Complete a `Request` with the specified cause.
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*
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* @since 2.0.0
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* @category request completion
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*/
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<A extends Request<any, any>>(self: A, cause: Cause<Request.Error<A>>): Effect.Effect<void>;
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};
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/**
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* Complete a `Request` with the specified value.
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*
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* @since 2.0.0
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* @category request completion
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*/
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export declare const succeed: {
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/**
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* Complete a `Request` with the specified value.
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*
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* @since 2.0.0
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* @category request completion
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*/
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<A extends Request<any, any>>(value: Request.Success<A>): (self: A) => Effect.Effect<void>;
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/**
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* Complete a `Request` with the specified value.
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*
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* @since 2.0.0
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* @category request completion
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*/
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<A extends Request<any, any>>(self: A, value: Request.Success<A>): Effect.Effect<void>;
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};
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/**
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* @category models
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* @since 2.0.0
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*/
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export interface Listeners {
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readonly count: number;
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readonly observers: Set<(count: number) => void>;
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interrupted: boolean;
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addObserver(f: (count: number) => void): void;
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removeObserver(f: (count: number) => void): void;
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increment(): void;
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decrement(): void;
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}
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/**
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* @category models
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* @since 2.0.0
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*/
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export interface Cache extends _Cache.ConsumerCache<Request<any, any>, {
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listeners: Listeners;
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handle: Deferred<unknown, unknown>;
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}> {
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}
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/**
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* @since 2.0.0
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* @category models
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*/
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export declare const makeCache: (options: {
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readonly capacity: number;
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readonly timeToLive: DurationInput;
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}) => Effect.Effect<Cache>;
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/**
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* @since 2.0.0
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* @category symbols
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*/
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export declare const EntryTypeId: unique symbol;
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/**
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* @since 2.0.0
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* @category symbols
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*/
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export type EntryTypeId = typeof EntryTypeId;
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/**
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* A `Entry<A>` keeps track of a request of type `A` along with a
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* `Ref` containing the result of the request, existentially hiding the result
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* type. This is used internally by the library to support data sources that
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* return different result types for different requests while guaranteeing that
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* results will be of the type requested.
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*
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* @since 2.0.0
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* @category models
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*/
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export interface Entry<out R> extends Entry.Variance<R> {
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readonly request: R;
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readonly result: Deferred<[
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R
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] extends [Request<infer _A, infer _E>] ? _A : never, [
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R
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] extends [Request<infer _A, infer _E>] ? _E : never>;
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readonly listeners: Listeners;
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readonly ownerId: FiberId;
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readonly state: {
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completed: boolean;
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};
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}
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/**
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* @since 2.0.0
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* @category models
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*/
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export declare namespace Entry {
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/**
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* @since 2.0.0
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* @category models
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*/
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interface Variance<out R> {
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readonly [EntryTypeId]: {
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readonly _R: Types.Covariant<R>;
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};
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}
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}
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/**
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* @since 2.0.0
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* @category guards
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*/
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export declare const isEntry: (u: unknown) => u is Entry<unknown>;
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/**
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* @since 2.0.0
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* @category constructors
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*/
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export declare const makeEntry: <A extends Request<any, any>>(options: {
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readonly request: A;
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readonly result: Deferred<Request.Success<A>, Request.Error<A>>;
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readonly listeners: Listeners;
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readonly ownerId: FiberId;
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readonly state: {
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completed: boolean;
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};
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}) => Entry<A>;
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//# sourceMappingURL=Request.d.ts.map
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