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feat: add WeakRef interface

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eric_wang 2022-06-12 18:01:46 +08:00
parent 335c5ee25f
commit 4fe89357fc
3 changed files with 98 additions and 2 deletions
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4
source/index.ts
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@ -612,8 +612,8 @@ export const assert: Assert = {
}, },
buffer: (value: unknown): asserts value is Buffer => assertType(is.buffer(value), 'Buffer', value), buffer: (value: unknown): asserts value is Buffer => assertType(is.buffer(value), 'Buffer', value),
blob: (value: unknown): asserts value is Blob => assertType(is.blob(value), 'Blob', value), blob: (value: unknown): asserts value is Blob => assertType(is.blob(value), 'Blob', value),
nullOrUndefined: /* eslint-disable-line @typescript-eslint/ban-types */ (value: unknown): asserts value is null | undefined => assertType(is.nullOrUndefined(value), AssertionTypeDescription.nullOrUndefined, value), nullOrUndefined: (value: unknown): asserts value is null | undefined => assertType(is.nullOrUndefined(value), AssertionTypeDescription.nullOrUndefined, value),
object: (value: unknown): asserts value is Record<string, unknown> => assertType(is.object(value), 'Object', value), object: (value: unknown): asserts value is object => assertType(is.object(value), 'Object', value),
iterable: <T = unknown>(value: unknown): asserts value is Iterable<T> => assertType(is.iterable(value), AssertionTypeDescription.iterable, value), iterable: <T = unknown>(value: unknown): asserts value is Iterable<T> => assertType(is.iterable(value), AssertionTypeDescription.iterable, value),
asyncIterable: <T = unknown>(value: unknown): asserts value is AsyncIterable<T> => assertType(is.asyncIterable(value), AssertionTypeDescription.asyncIterable, value), asyncIterable: <T = unknown>(value: unknown): asserts value is AsyncIterable<T> => assertType(is.asyncIterable(value), AssertionTypeDescription.asyncIterable, value),
generator: (value: unknown): asserts value is Generator => assertType(is.generator(value), 'Generator', value), generator: (value: unknown): asserts value is Generator => assertType(is.generator(value), 'Generator', value),

10
source/types.ts
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@ -49,3 +49,13 @@ export interface ObservableLike {
// eslint-disable-next-line @typescript-eslint/ban-types // eslint-disable-next-line @typescript-eslint/ban-types
export type Falsy = false | 0 | 0n | '' | null | undefined; export type Falsy = false | 0 | 0n | '' | null | undefined;
export interface WeakRef<T extends object> {
readonly [Symbol.toStringTag]: "WeakRef";
/**
* Returns the WeakRef instance's target object, or undefined if the target object has been
* reclaimed.
*/
deref(): T | undefined;
}