Interface Result<T>

Result of an asynchronous function that may be available immediately or some time later. Similar to Deferred.

interface Result<T> {
    get(): T;
    isPending(): boolean;
    then(callback: (p1: T) => void): void;
    thenAsync<T1>(callback: (p1: T) => Result<T1>): Result<T1>;
    thenFinish(frame: Frame<T>): void;
    thenReturn<T1>(result: T1): Result<T1>;
}

Type Parameters

T

Implemented by

Index

Methods

get isPending then thenAsync thenFinish thenReturn

Methods

get

get(): T
If this Result is resolved, return the value that it holds.

Returns T
- Defined in src/vivliostyle/task.ts:88

isPending

isPending(): boolean
Check if this Result is still pending.

Returns boolean
- Defined in src/vivliostyle/task.ts:83

then

then(callback: (p1: T) => void): void
Call the given function when asynchronous function is finished. Callback is executed in the task's context.
Parameters
- callback: (p1: T) => void
Returns void
- Defined in src/vivliostyle/task.ts:59

thenAsync

thenAsync<T1>(callback: (p1: T) => Result<T1>): Result<T1>
Call the given asynchronous function when some asynchronous function is finished. Callback is executed in the task's context.
Type Parameters
- T1
Parameters
- callback: (p1: T) => Result<T1>
Returns Result<T1>
- Defined in src/vivliostyle/task.ts:66

thenFinish

thenFinish(frame: Frame<T>): void
Finish given frame with the result value when result becomes ready.
Parameters
- frame: Frame<T>
Returns void
- Defined in src/vivliostyle/task.ts:78

thenReturn

thenReturn<T1>(result: T1): Result<T1>
Produce a Result that resolves to the given value when this Result is resolved.
Type Parameters
- T1
Parameters
- result: T1
Returns Result<T1>
- Defined in src/vivliostyle/task.ts:73