scope library

Functional-style helpers for transforming values and managing scope.

Use let to transform a value, also to observe it without changing it, and use to pair synchronous work with cleanup. use runs its disposer in a finally block and does not manage asynchronous resource lifetimes.

Extensions

AlsoExtension on T

Extension for executing side effects while returning the original value.

ApplyExtension on T

Extension for conditionally transforming values.

LetExtension on T

Extension for transforming values using a block function.

TakeExtension on T

Extension for conditionally filtering values.

Functions

run<R extends Object?>(R block()) → R

Executes a code block and returns its result.

use<R extends Object?, T extends Object?>(T value, R block(T value), {void dispose(T value)?}) → R

Executes a block with a value and ensures cleanup via disposal.