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1export interface Thenable <R> {
2 then <U> (onFulfilled?: (value: R) => U | Thenable<U>, onRejected?: (error: any) => U | Thenable<U>): Thenable<U>;
3 then <U> (onFulfilled?: (value: R) => U | Thenable<U>, onRejected?: (error: any) => void): Thenable<U>;
4}
5
6export class Promise <R> implements Thenable <R> {
7 /**
8 * If you call resolve in the body of the callback passed to the constructor,
9 * your promise is fulfilled with result object passed to resolve.
10 * If you call reject your promise is rejected with the object passed to resolve.
11 * For consistency and debugging (eg stack traces), obj should be an instanceof Error.
12 * Any errors thrown in the constructor callback will be implicitly passed to reject().
13 */
14 constructor (callback: (resolve : (value?: R | Thenable<R>) => void, reject: (error?: any) => void) => void);
15
16 /**
17 * onFulfilled is called when/if "promise" resolves. onRejected is called when/if "promise" rejects.
18 * Both are optional, if either/both are omitted the next onFulfilled/onRejected in the chain is called.
19 * Both callbacks have a single parameter , the fulfillment value or rejection reason.
20 * "then" returns a new promise equivalent to the value you return from onFulfilled/onRejected after being passed through Promise.resolve.
21 * If an error is thrown in the callback, the returned promise rejects with that error.
22 *
23 * @param onFulfilled called when/if "promise" resolves
24 * @param onRejected called when/if "promise" rejects
25 */
26 then <U> (onFulfilled?: (value: R) => U | Thenable<U>, onRejected?: (error: any) => U | Thenable<U>): Promise<U>;
27 then <U> (onFulfilled?: (value: R) => U | Thenable<U>, onRejected?: (error: any) => void): Promise<U>;
28
29 /**
30 * Sugar for promise.then(undefined, onRejected)
31 *
32 * @param onRejected called when/if "promise" rejects
33 */
34 catch <U> (onRejected?: (error: any) => U | Thenable<U>): Promise<U>;
35
36 /**
37 * onSettled is invoked when/if the "promise" settles (either rejects or fulfills).
38 * The returned promise is settled when the `Thenable` returned by `onFinally` settles;
39 * it is rejected if `onFinally` throws or rejects; otherwise it assumes the state of the
40 * original Promise.
41 *
42 * @param onFinally called when/if "promise" settles
43
44 */
45 finally (onFinally?: () => any | Thenable<any>): Promise<R>;
46
47 /**
48 * Make a new promise from the thenable.
49 * A thenable is promise-like in as far as it has a "then" method.
50 */
51 static resolve (): Promise<void>;
52 static resolve <R> (value: R | Thenable<R>): Promise<R>;
53
54 /**
55 * Make a promise that rejects to obj. For consistency and debugging (eg stack traces), obj should be an instanceof Error
56 */
57 static reject <R> (error: any): Promise<R>;
58
59 /**
60 * Make a promise that fulfills when every item in the array fulfills, and rejects if (and when) any item rejects.
61 * the array passed to all can be a mixture of promise-like objects and other objects.
62 * The fulfillment value is an array (in order) of fulfillment values. The rejection value is the first rejection value.
63 */
64 static all<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(values: [T1 | Thenable<T1>, T2 | Thenable<T2>, T3 | Thenable<T3>, T4 | Thenable <T4>, T5 | Thenable<T5>, T6 | Thenable<T6>, T7 | Thenable<T7>, T8 | Thenable<T8>, T9 | Thenable<T9>, T10 | Thenable<T10>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]>;
65 static all<T1, T2, T3, T4, T5, T6, T7, T8, T9>(values: [T1 | Thenable<T1>, T2 | Thenable<T2>, T3 | Thenable<T3>, T4 | Thenable <T4>, T5 | Thenable<T5>, T6 | Thenable<T6>, T7 | Thenable<T7>, T8 | Thenable<T8>, T9 | Thenable<T9>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9]>;
66 static all<T1, T2, T3, T4, T5, T6, T7, T8>(values: [T1 | Thenable<T1>, T2 | Thenable<T2>, T3 | Thenable<T3>, T4 | Thenable <T4>, T5 | Thenable<T5>, T6 | Thenable<T6>, T7 | Thenable<T7>, T8 | Thenable<T8>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8]>;
67 static all<T1, T2, T3, T4, T5, T6, T7>(values: [T1 | Thenable<T1>, T2 | Thenable<T2>, T3 | Thenable<T3>, T4 | Thenable <T4>, T5 | Thenable<T5>, T6 | Thenable<T6>, T7 | Thenable<T7>]): Promise<[T1, T2, T3, T4, T5, T6, T7]>;
68 static all<T1, T2, T3, T4, T5, T6>(values: [T1 | Thenable<T1>, T2 | Thenable<T2>, T3 | Thenable<T3>, T4 | Thenable <T4>, T5 | Thenable<T5>, T6 | Thenable<T6>]): Promise<[T1, T2, T3, T4, T5, T6]>;
69 static all<T1, T2, T3, T4, T5>(values: [T1 | Thenable<T1>, T2 | Thenable<T2>, T3 | Thenable<T3>, T4 | Thenable <T4>, T5 | Thenable<T5>]): Promise<[T1, T2, T3, T4, T5]>;
70 static all<T1, T2, T3, T4>(values: [T1 | Thenable<T1>, T2 | Thenable<T2>, T3 | Thenable<T3>, T4 | Thenable <T4>]): Promise<[T1, T2, T3, T4]>;
71 static all<T1, T2, T3>(values: [T1 | Thenable<T1>, T2 | Thenable<T2>, T3 | Thenable<T3>]): Promise<[T1, T2, T3]>;
72 static all<T1, T2>(values: [T1 | Thenable<T1>, T2 | Thenable<T2>]): Promise<[T1, T2]>;
73 static all<T1>(values: [T1 | Thenable<T1>]): Promise<[T1]>;
74 static all<TAll>(values: Array<TAll | Thenable<TAll>>): Promise<TAll[]>;
75
76 /**
77 * Make a Promise that fulfills when any item fulfills, and rejects if any item rejects.
78 */
79 static race <R> (promises: (R | Thenable<R>)[]): Promise<R>;
80}
81
82/**
83 * The polyfill method will patch the global environment (in this case to the Promise name) when called.
84 */
85export function polyfill (): void;
86
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