<E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>
readonly onSuccess: (a: A) => Effect<A3, E3, R3>
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
<A, E, R, A2, E2, R2, A3, E3, R3>(
self: Effect<A, E, R>,
options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>
readonly onSuccess: (a: A) => Effect<A3, E3, R3>
}
): Effect<A2 | A3, E2 | E3, R2 | R3 | R>Handles success or failure eagerly with effectful handlers when the effect is already resolved.
When to use
Use when you need effectful success and cause-aware failure handlers for
Effect inputs that may already be resolved.
Details
If the effect is an Exit, the matching handler runs immediately; otherwise it behaves like
matchCauseEffect.
export const const matchCauseEffectEager: {
<E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (
cause: Cause.Cause<E>
) => Effect<A2, E2, R2>
readonly onSuccess: (
a: A
) => Effect<A3, E3, R3>
}): <R>(
self: Effect<A, E, R>
) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
<A, E, R, A2, E2, R2, A3, E3, R3>(
self: Effect<A, E, R>,
options: {
readonly onFailure: (
cause: Cause.Cause<E>
) => Effect<A2, E2, R2>
readonly onSuccess: (
a: A
) => Effect<A3, E3, R3>
}
): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
}
Handles success or failure eagerly with effectful handlers when the effect is already resolved.
When to use
Use when you need effectful success and cause-aware failure handlers for
Effect inputs that may already be resolved.
Details
If the effect is an Exit, the matching handler runs immediately; otherwise it behaves like
matchCauseEffectEager: {
<function (type parameter) E in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) A2 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E2 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R2 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) A in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) A3 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E3 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R3 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
options: {
readonly onFailure: (
cause: Cause.Cause<E>
) => Effect<A2, E2, R2>
readonly onSuccess: (a: A) => Effect<A3, E3, R3>
}
onFailure: (
cause: Cause.Cause<E>
) => Effect<A2, E2, R2>
cause: Cause.Cause<E>(parameter) cause: {
reasons: ReadonlyArray<Reason<E>>;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
import CauseCause.type Cause.Cause = /*unresolved*/ anyCause<function (type parameter) E in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A2 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E2 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R2 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
onSuccess: (a: A) => Effect<A3, E3, R3>onSuccess: (a: Aa: function (type parameter) A in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A3 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E3 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R3 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R in <R>(self: Effect<A, E, R>): Effect<A2 | A3, E2 | E3, R2 | R3 | R>R>(self: Effect<A, E, R>(parameter) self: {
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R in <R>(self: Effect<A, E, R>): Effect<A2 | A3, E2 | E3, R2 | R3 | R>R>) => interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A2 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) A3 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E2 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E3 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R2 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R3 in <E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): <R>(self: Effect<A, E, R>) => Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R in <R>(self: Effect<A, E, R>): Effect<A2 | A3, E2 | E3, R2 | R3 | R>R>
<function (type parameter) A in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) A2 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E2 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R2 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) A3 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E3 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R3 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
self: Effect<A, E, R>(parameter) self: {
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
options: {
readonly onFailure: (
cause: Cause.Cause<E>
) => Effect<A2, E2, R2>
readonly onSuccess: (a: A) => Effect<A3, E3, R3>
}
onFailure: (
cause: Cause.Cause<E>
) => Effect<A2, E2, R2>
cause: Cause.Cause<E>(parameter) cause: {
reasons: ReadonlyArray<Reason<E>>;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
import CauseCause.type Cause.Cause = /*unresolved*/ anyCause<function (type parameter) E in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A2 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E2 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R2 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
onSuccess: (a: A) => Effect<A3, E3, R3>onSuccess: (a: Aa: function (type parameter) A in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A3 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E3 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R3 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A2 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) A3 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E2 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) E3 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R2 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R3 in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
function (type parameter) R in <A, E, R, A2, E2, R2, A3, E3, R3>(self: Effect<A, E, R>, options: {
readonly onFailure: (cause: Cause.Cause<E>) => Effect<A2, E2, R2>;
readonly onSuccess: (a: A) => Effect<A3, E3, R3>;
}): Effect<A2 | A3, E2 | E3, R2 | R3 | R>
import internalinternal.const matchCauseEffectEager: {
<E, A2, E2, R2, A, A3, E3, R3>(options: {
readonly onFailure: (
cause: Cause.Cause<E>
) => Effect.Effect<A2, E2, R2>
readonly onSuccess: (
a: A
) => Effect.Effect<A3, E3, R3>
}): <R>(
self: Effect.Effect<A, E, R>
) => Effect.Effect<
A2 | A3,
E2 | E3,
R2 | R3 | R
>
<A, E, R, A2, E2, R2, A3, E3, R3>(
self: Effect.Effect<A, E, R>,
options: {
readonly onFailure: (
cause: Cause.Cause<E>
) => Effect.Effect<A2, E2, R2>
readonly onSuccess: (
a: A
) => Effect.Effect<A3, E3, R3>
}
): Effect.Effect<A2 | A3, E2 | E3, R2 | R3 | R>
}