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ospab.host/node_modules/effect/dist/dts/Scope.d.ts
2025-09-15 18:10:26 +03:00

194 lines
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TypeScript

/**
* @since 2.0.0
*/
import type * as Context from "./Context.js";
import type * as Effect from "./Effect.js";
import type * as ExecutionStrategy from "./ExecutionStrategy.js";
import type * as Exit from "./Exit.js";
import type { Pipeable } from "./Pipeable.js";
/**
* A unique identifier for the `Scope` type.
*
* @since 2.0.0
* @category symbols
*/
export declare const ScopeTypeId: unique symbol;
/**
* The type of the unique identifier for `Scope`.
*
* @since 2.0.0
* @category symbols
*/
export type ScopeTypeId = typeof ScopeTypeId;
/**
* A unique identifier for the `CloseableScope` type.
*
* @since 2.0.0
* @category symbols
*/
export declare const CloseableScopeTypeId: unique symbol;
/**
* The type of the unique identifier for `CloseableScope`.
*
* @since 2.0.0
* @category symbols
*/
export type CloseableScopeTypeId = typeof CloseableScopeTypeId;
/**
* Represents a scope that manages finalizers and can fork child scopes.
*
* @since 2.0.0
* @category models
*/
export interface Scope extends Pipeable {
readonly [ScopeTypeId]: ScopeTypeId;
/**
* The execution strategy for running finalizers in this scope.
*/
readonly strategy: ExecutionStrategy.ExecutionStrategy;
}
/**
* A scope that can be explicitly closed with a specified exit value.
*
* @since 2.0.0
* @category models
*/
export interface CloseableScope extends Scope, Pipeable {
readonly [CloseableScopeTypeId]: CloseableScopeTypeId;
}
/**
* A tag representing the current `Scope` in the environment.
*
* @since 2.0.0
* @category context
*/
export declare const Scope: Context.Tag<Scope, Scope>;
/**
* @since 2.0.0
*/
export declare namespace Scope {
/**
* A finalizer function that takes an `Exit` value and returns an `Effect`.
*
* @since 2.0.0
* @category model
*/
type Finalizer = (exit: Exit.Exit<unknown, unknown>) => Effect.Effect<void>;
/**
* A closeable scope that can be explicitly closed.
*
* @since 2.0.0
* @category model
*/
type Closeable = CloseableScope;
}
/**
* Adds a finalizer to this scope. The finalizer is guaranteed to be run when
* the scope is closed. Use this when the finalizer does not need to know the
* `Exit` value that the scope is closed with.
*
* @see {@link addFinalizerExit}
*
* @since 2.0.0
* @category utils
*/
export declare const addFinalizer: (self: Scope, finalizer: Effect.Effect<unknown>) => Effect.Effect<void>;
/**
* Adds a finalizer to this scope. The finalizer receives the `Exit` value
* when the scope is closed, allowing it to perform different actions based
* on the exit status.
*
* @see {@link addFinalizer}
*
* @since 2.0.0
* @category utils
*/
export declare const addFinalizerExit: (self: Scope, finalizer: Scope.Finalizer) => Effect.Effect<void>;
/**
* Closes this scope with the specified exit value, running all finalizers that
* have been added to the scope.
*
* @since 2.0.0
* @category destructors
*/
export declare const close: (self: CloseableScope, exit: Exit.Exit<unknown, unknown>) => Effect.Effect<void>;
/**
* Extends the scope of an `Effect` that requires a scope into this scope.
* It provides this scope to the effect but does not close the scope when the
* effect completes execution. This allows extending a scoped value into a
* larger scope.
*
* @since 2.0.0
* @category utils
*/
export declare const extend: {
/**
* Extends the scope of an `Effect` that requires a scope into this scope.
* It provides this scope to the effect but does not close the scope when the
* effect completes execution. This allows extending a scoped value into a
* larger scope.
*
* @since 2.0.0
* @category utils
*/
(scope: Scope): <A, E, R>(effect: Effect.Effect<A, E, R>) => Effect.Effect<A, E, Exclude<R, Scope>>;
/**
* Extends the scope of an `Effect` that requires a scope into this scope.
* It provides this scope to the effect but does not close the scope when the
* effect completes execution. This allows extending a scoped value into a
* larger scope.
*
* @since 2.0.0
* @category utils
*/
<A, E, R>(effect: Effect.Effect<A, E, R>, scope: Scope): Effect.Effect<A, E, Exclude<R, Scope>>;
};
/**
* Forks a new child scope with the specified execution strategy. The child scope
* will automatically be closed when this scope is closed.
*
* @since 2.0.0
* @category utils
*/
export declare const fork: (self: Scope, strategy: ExecutionStrategy.ExecutionStrategy) => Effect.Effect<CloseableScope>;
/**
* Provides this closeable scope to an `Effect` that requires a scope,
* guaranteeing that the scope is closed with the result of that effect as
* soon as the effect completes execution, whether by success, failure, or
* interruption.
*
* @since 2.0.0
* @category destructors
*/
export declare const use: {
/**
* Provides this closeable scope to an `Effect` that requires a scope,
* guaranteeing that the scope is closed with the result of that effect as
* soon as the effect completes execution, whether by success, failure, or
* interruption.
*
* @since 2.0.0
* @category destructors
*/
(scope: CloseableScope): <A, E, R>(effect: Effect.Effect<A, E, R>) => Effect.Effect<A, E, Exclude<R, Scope>>;
/**
* Provides this closeable scope to an `Effect` that requires a scope,
* guaranteeing that the scope is closed with the result of that effect as
* soon as the effect completes execution, whether by success, failure, or
* interruption.
*
* @since 2.0.0
* @category destructors
*/
<A, E, R>(effect: Effect.Effect<A, E, R>, scope: CloseableScope): Effect.Effect<A, E, Exclude<R, Scope>>;
};
/**
* Creates a new closeable scope where finalizers will run according to the
* specified `ExecutionStrategy`. If no execution strategy is provided, `sequential`
* will be used by default.
*
* @since 2.0.0
* @category constructors
*/
export declare const make: (executionStrategy?: ExecutionStrategy.ExecutionStrategy) => Effect.Effect<CloseableScope>;
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