tslib.d.ts

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/**
 * Used to shim class extends.
 *
 * @param d The derived class.
 * @param b The base class.
 */
export declare function __extends(d: Function, b: Function): void;

/**
 * Copy the values of all of the enumerable own properties from one or more source objects to a
 * target object. Returns the target object.
 *
 * @param t The target object to copy to.
 * @param sources One or more source objects from which to copy properties
 */
export declare function __assign(t: any, ...sources: any[]): any;

/**
 * Performs a rest spread on an object.
 *
 * @param t The source value.
 * @param propertyNames The property names excluded from the rest spread.
 */
export declare function __rest(t: any, propertyNames: (string | symbol)[]): any;

/**
 * Applies decorators to a target object
 *
 * @param decorators The set of decorators to apply.
 * @param target The target object.
 * @param key If specified, the own property to apply the decorators to.
 * @param desc The property descriptor, defaults to fetching the descriptor from the target object.
 * @experimental
 */
export declare function __decorate(decorators: Function[], target: any, key?: string | symbol, desc?: any): any;

/**
 * Creates an observing function decorator from a parameter decorator.
 *
 * @param paramIndex The parameter index to apply the decorator to.
 * @param decorator The parameter decorator to apply. Note that the return value is ignored.
 * @experimental
 */
export declare function __param(paramIndex: number, decorator: Function): Function;

/**
 * Applies decorators to a class or class member, following the native ECMAScript decorator specification.
 * @param ctor For non-field class members, the class constructor. Otherwise, `null`.
 * @param descriptorIn The `PropertyDescriptor` to use when unable to look up the property from `ctor`.
 * @param decorators The decorators to apply
 * @param contextIn The `DecoratorContext` to clone for each decorator application.
 * @param initializers An array of field initializer mutation functions into which new initializers are written.
 * @param extraInitializers An array of extra initializer functions into which new initializers are written.
 */
export declare function __esDecorate(ctor: Function | null, descriptorIn: object | null, decorators: Function[], contextIn: object, initializers: Function[] | null, extraInitializers: Function[]): void;

/**
 * Runs field initializers or extra initializers generated by `__esDecorate`.
 * @param thisArg The `this` argument to use.
 * @param initializers The array of initializers to evaluate.
 * @param value The initial value to pass to the initializers.
 */
export declare function __runInitializers(thisArg: unknown, initializers: Function[], value?: any): any;

/**
 * Converts a computed property name into a `string` or `symbol` value.
 */
export declare function __propKey(x: any): string | symbol;

/**
 * Assigns the name of a function derived from the left-hand side of an assignment.
 * @param f The function to rename.
 * @param name The new name for the function.
 * @param prefix A prefix (such as `"get"` or `"set"`) to insert before the name.
 */
export declare function __setFunctionName(f: Function, name: string | symbol, prefix?: string): Function;

/**
 * Creates a decorator that sets metadata.
 *
 * @param metadataKey The metadata key
 * @param metadataValue The metadata value
 * @experimental
 */
export declare function __metadata(metadataKey: any, metadataValue: any): Function;

/**
 * Converts a generator function into a pseudo-async function, by treating each `yield` as an `await`.
 *
 * @param thisArg The reference to use as the `this` value in the generator function
 * @param _arguments The optional arguments array
 * @param P The optional promise constructor argument, defaults to the `Promise` property of the global object.
 * @param generator The generator function
 */
export declare function __awaiter(thisArg: any, _arguments: any, P: Function, generator: Function): any;

/**
 * Creates an Iterator object using the body as the implementation.
 *
 * @param thisArg The reference to use as the `this` value in the function
 * @param body The generator state-machine based implementation.
 *
 * @see [./docs/generator.md]
 */
export declare function __generator(thisArg: any, body: Function): any;

/**
 * Creates bindings for all enumerable properties of `m` on `exports`
 *
 * @param m The source object
 * @param o The `exports` object.
 */
export declare function __exportStar(m: any, o: any): void;

/**
 * Creates a value iterator from an `Iterable` or `ArrayLike` object.
 *
 * @param o The object.
 * @throws {TypeError} If `o` is neither `Iterable`, nor an `ArrayLike`.
 */
export declare function __values(o: any): any;

/**
 * Reads values from an `Iterable` or `ArrayLike` object and returns the resulting array.
 *
 * @param o The object to read from.
 * @param n The maximum number of arguments to read, defaults to `Infinity`.
 */
export declare function __read(o: any, n?: number): any[];

/**
 * Creates an array from iterable spread.
 *
 * @param args The Iterable objects to spread.
 * @deprecated since TypeScript 4.2 - Use `__spreadArray`
 */
export declare function __spread(...args: any[][]): any[];

/**
 * Creates an array from array spread.
 *
 * @param args The ArrayLikes to spread into the resulting array.
 * @deprecated since TypeScript 4.2 - Use `__spreadArray`
 */
export declare function __spreadArrays(...args: any[][]): any[];

/**
 * Spreads the `from` array into the `to` array.
 *
 * @param pack Replace empty elements with `undefined`.
 */
export declare function __spreadArray(to: any[], from: any[], pack?: boolean): any[];

/**
 * Creates an object that signals to `__asyncGenerator` that it shouldn't be yielded,
 * and instead should be awaited and the resulting value passed back to the generator.
 *
 * @param v The value to await.
 */
export declare function __await(v: any): any;

/**
 * Converts a generator function into an async generator function, by using `yield __await`
 * in place of normal `await`.
 *
 * @param thisArg The reference to use as the `this` value in the generator function
 * @param _arguments The optional arguments array
 * @param generator The generator function
 */
export declare function __asyncGenerator(thisArg: any, _arguments: any, generator: Function): any;

/**
 * Used to wrap a potentially async iterator in such a way so that it wraps the result
 * of calling iterator methods of `o` in `__await` instances, and then yields the awaited values.
 *
 * @param o The potentially async iterator.
 * @returns A synchronous iterator yielding `__await` instances on every odd invocation
 *          and returning the awaited `IteratorResult` passed to `next` every even invocation.
 */
export declare function __asyncDelegator(o: any): any;

/**
 * Creates a value async iterator from an `AsyncIterable`, `Iterable` or `ArrayLike` object.
 *
 * @param o The object.
 * @throws {TypeError} If `o` is neither `AsyncIterable`, `Iterable`, nor an `ArrayLike`.
 */
export declare function __asyncValues(o: any): any;

/**
 * Creates a `TemplateStringsArray` frozen object from the `cooked` and `raw` arrays.
 *
 * @param cooked The cooked possibly-sparse array.
 * @param raw The raw string content.
 */
export declare function __makeTemplateObject(cooked: string[], raw: string[]): TemplateStringsArray;

/**
 * Used to shim default and named imports in ECMAScript Modules transpiled to CommonJS.
 *
 * ```js
 * import Default, { Named, Other } from "mod";
 * // or
 * import { default as Default, Named, Other } from "mod";
 * ```
 *
 * @param mod The CommonJS module exports object.
 */
export declare function __importStar<T>(mod: T): T;

/**
 * Used to shim default imports in ECMAScript Modules transpiled to CommonJS.
 *
 * ```js
 * import Default from "mod";
 * ```
 *
 * @param mod The CommonJS module exports object.
 */
export declare function __importDefault<T>(mod: T): T | { default: T };

/**
 * Emulates reading a private instance field.
 *
 * @param receiver The instance from which to read the private field.
 * @param state A WeakMap containing the private field value for an instance.
 * @param kind Either `"f"` for a field, `"a"` for an accessor, or `"m"` for a method.
 *
 * @throws {TypeError} If `state` doesn't have an entry for `receiver`.
 */
export declare function __classPrivateFieldGet<T extends object, V>(
    receiver: T,
    state: { has(o: T): boolean, get(o: T): V | undefined },
    kind?: "f"
): V;

/**
 * Emulates reading a private static field.
 *
 * @param receiver The object from which to read the private static field.
 * @param state The class constructor containing the definition of the static field.
 * @param kind Either `"f"` for a field, `"a"` for an accessor, or `"m"` for a method.
 * @param f The descriptor that holds the static field value.
 *
 * @throws {TypeError} If `receiver` is not `state`.
 */
export declare function __classPrivateFieldGet<T extends new (...args: any[]) => unknown, V>(
    receiver: T,
    state: T,
    kind: "f",
    f: { value: V }
): V;

/**
 * Emulates evaluating a private instance "get" accessor.
 *
 * @param receiver The instance on which to evaluate the private "get" accessor.
 * @param state A WeakSet used to verify an instance supports the private "get" accessor.
 * @param kind Either `"f"` for a field, `"a"` for an accessor, or `"m"` for a method.
 * @param f The "get" accessor function to evaluate.
 *
 * @throws {TypeError} If `state` doesn't have an entry for `receiver`.
 */
export declare function __classPrivateFieldGet<T extends object, V>(
    receiver: T,
    state: { has(o: T): boolean },
    kind: "a",
    f: () => V
): V;

/**
 * Emulates evaluating a private static "get" accessor.
 *
 * @param receiver The object on which to evaluate the private static "get" accessor.
 * @param state The class constructor containing the definition of the static "get" accessor.
 * @param kind Either `"f"` for a field, `"a"` for an accessor, or `"m"` for a method.
 * @param f The "get" accessor function to evaluate.
 *
 * @throws {TypeError} If `receiver` is not `state`.
 */
export declare function __classPrivateFieldGet<T extends new (...args: any[]) => unknown, V>(
    receiver: T,
    state: T,
    kind: "a",
    f: () => V
): V;

/**
 * Emulates reading a private instance method.
 *
 * @param receiver The instance from which to read a private method.
 * @param state A WeakSet used to verify an instance supports the private method.
 * @param kind Either `"f"` for a field, `"a"` for an accessor, or `"m"` for a method.
 * @param f The function to return as the private instance method.
 *
 * @throws {TypeError} If `state` doesn't have an entry for `receiver`.
 */
export declare function __classPrivateFieldGet<T extends object, V extends (...args: any[]) => unknown>(
    receiver: T,
    state: { has(o: T): boolean },
    kind: "m",
    f: V
): V;

/**
 * Emulates reading a private static method.
 *
 * @param receiver The object from which to read the private static method.
 * @param state The class constructor containing the definition of the static method.
 * @param kind Either `"f"` for a field, `"a"` for an accessor, or `"m"` for a method.
 * @param f The function to return as the private static method.
 *
 * @throws {TypeError} If `receiver` is not `state`.
 */
export declare function __classPrivateFieldGet<T extends new (...args: any[]) => unknown, V extends (...args: any[]) => unknown>(
    receiver: T,
    state: T,
    kind: "m",
    f: V
): V;

/**
 * Emulates writing to a private instance field.
 *
 * @param receiver The instance on which to set a private field value.
 * @param state A WeakMap used to store the private field value for an instance.
 * @param value The value to store in the private field.
 * @param kind Either `"f"` for a field, `"a"` for an accessor, or `"m"` for a method.
 *
 * @throws {TypeError} If `state` doesn't have an entry for `receiver`.
 */
export declare function __classPrivateFieldSet<T extends object, V>(
    receiver: T,
    state: { has(o: T): boolean, set(o: T, value: V): unknown },
    value: V,
    kind?: "f"
): V;

/**
 * Emulates writing to a private static field.
 *
 * @param receiver The object on which to set the private static field.
 * @param state The class constructor containing the definition of the private static field.
 * @param value The value to store in the private field.
 * @param kind Either `"f"` for a field, `"a"` for an accessor, or `"m"` for a method.
 * @param f The descriptor that holds the static field value.
 *
 * @throws {TypeError} If `receiver` is not `state`.
 */
export declare function __classPrivateFieldSet<T extends new (...args: any[]) => unknown, V>(
    receiver: T,
    state: T,
    value: V,
    kind: "f",
    f: { value: V }
): V;

/**
 * Emulates writing to a private instance "set" accessor.
 *
 * @param receiver The instance on which to evaluate the private instance "set" accessor.
 * @param state A WeakSet used to verify an instance supports the private "set" accessor.
 * @param value The value to store in the private accessor.
 * @param kind Either `"f"` for a field, `"a"` for an accessor, or `"m"` for a method.
 * @param f The "set" accessor function to evaluate.
 *
 * @throws {TypeError} If `state` doesn't have an entry for `receiver`.
 */
export declare function __classPrivateFieldSet<T extends object, V>(
    receiver: T,
    state: { has(o: T): boolean },
    value: V,
    kind: "a",
    f: (v: V) => void
): V;

/**
 * Emulates writing to a private static "set" accessor.
 *
 * @param receiver The object on which to evaluate the private static "set" accessor.
 * @param state The class constructor containing the definition of the static "set" accessor.
 * @param value The value to store in the private field.
 * @param kind Either `"f"` for a field, `"a"` for an accessor, or `"m"` for a method.
 * @param f The "set" accessor function to evaluate.
 *
 * @throws {TypeError} If `receiver` is not `state`.
 */
export declare function __classPrivateFieldSet<T extends new (...args: any[]) => unknown, V>(
    receiver: T,
    state: T,
    value: V,
    kind: "a",
    f: (v: V) => void
): V;

/**
 * Checks for the existence of a private field/method/accessor.
 *
 * @param state The class constructor containing the static member, or the WeakMap or WeakSet associated with a private instance member.
 * @param receiver The object for which to test the presence of the private member.
 */
export declare function __classPrivateFieldIn(
    state: (new (...args: any[]) => unknown) | { has(o: any): boolean },
    receiver: unknown,
): boolean;

/**
 * Creates a re-export binding on `object` with key `objectKey` that references `target[key]`.
 *
 * @param object The local `exports` object.
 * @param target The object to re-export from.
 * @param key The property key of `target` to re-export.
 * @param objectKey The property key to re-export as. Defaults to `key`.
 */
export declare function __createBinding(object: object, target: object, key: PropertyKey, objectKey?: PropertyKey): void;

/**
 * Adds a disposable resource to a resource-tracking environment object.
 * @param env A resource-tracking environment object.
 * @param value Either a Disposable or AsyncDisposable object, `null`, or `undefined`.
 * @param async When `true`, `AsyncDisposable` resources can be added. When `false`, `AsyncDisposable` resources cannot be added.
 * @returns The {@link value} argument.
 *
 * @throws {TypeError} If {@link value} is not an object, or if either `Symbol.dispose` or `Symbol.asyncDispose` are not
 * defined, or if {@link value} does not have an appropriate `Symbol.dispose` or `Symbol.asyncDispose` method.
 */
export declare function __addDisposableResource<T>(env: { stack: { value?: unknown, dispose?: Function, async: boolean }[]; error: unknown; hasError: boolean; }, value: T, async: boolean): T;

/**
 * Disposes all resources in a resource-tracking environment object.
 * @param env A resource-tracking environment object.
 * @returns A {@link Promise} if any resources in the environment were marked as `async` when added; otherwise, `void`.
 *
 * @throws {SuppressedError} if an error thrown during disposal would have suppressed a prior error from disposal or the
 * error recorded in the resource-tracking environment object.
 * @seealso {@link __addDisposableResource}
 */
export declare function __disposeResources(env: { stack: { value?: unknown, dispose?: Function, async: boolean }[]; error: unknown; hasError: boolean; }): any;

/**
 * Transforms a relative import specifier ending in a non-declaration TypeScript file extension to its JavaScript file extension counterpart.
 * @param path The import specifier.
 * @param preserveJsx Causes '*.tsx' to transform to '*.jsx' instead of '*.js'. Should be true when `--jsx` is set to `preserve`.
 */
export declare function __rewriteRelativeImportExtension(path: string, preserveJsx?: boolean): string;