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Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
/// <reference no-default-lib="true"/>
interface ProxyHandler<T extends object> {
/**
* A trap method for a function call.
* @param target The original callable object which is being proxied.
*/
apply?(target: T, thisArg: any, argArray: any[]): any;
/**
* A trap for the `new` operator.
* @param target The original object which is being proxied.
* @param newTarget The constructor that was originally called.
*/
construct?(target: T, argArray: any[], newTarget: Function): object;
/**
* A trap for `Object.defineProperty()`.
* @param target The original object which is being proxied.
* @returns A `Boolean` indicating whether or not the property has been defined.
*/
defineProperty?(target: T, property: string | symbol, attributes: PropertyDescriptor): boolean;
/**
* A trap for the `delete` operator.
* @param target The original object which is being proxied.
* @param p The name or `Symbol` of the property to delete.
* @returns A `Boolean` indicating whether or not the property was deleted.
*/
deleteProperty?(target: T, p: string | symbol): boolean;
/**
* A trap for getting a property value.
* @param target The original object which is being proxied.
* @param p The name or `Symbol` of the property to get.
* @param receiver The proxy or an object that inherits from the proxy.
*/
get?(target: T, p: string | symbol, receiver: any): any;
/**
* A trap for `Object.getOwnPropertyDescriptor()`.
* @param target The original object which is being proxied.
* @param p The name of the property whose description should be retrieved.
*/
getOwnPropertyDescriptor?(target: T, p: string | symbol): PropertyDescriptor | undefined;
/**
* A trap for the `[[GetPrototypeOf]]` internal method.
* @param target The original object which is being proxied.
*/
getPrototypeOf?(target: T): object | null;
/**
* A trap for the `in` operator.
* @param target The original object which is being proxied.
* @param p The name or `Symbol` of the property to check for existence.
*/
has?(target: T, p: string | symbol): boolean;
/**
* A trap for `Object.isExtensible()`.
* @param target The original object which is being proxied.
*/
isExtensible?(target: T): boolean;
/**
* A trap for `Reflect.ownKeys()`.
* @param target The original object which is being proxied.
*/
ownKeys?(target: T): ArrayLike<string | symbol>;
/**
* A trap for `Object.preventExtensions()`.
* @param target The original object which is being proxied.
*/
preventExtensions?(target: T): boolean;
/**
* A trap for setting a property value.
* @param target The original object which is being proxied.
* @param p The name or `Symbol` of the property to set.
* @param receiver The object to which the assignment was originally directed.
* @returns A `Boolean` indicating whether or not the property was set.
*/
set?(target: T, p: string | symbol, newValue: any, receiver: any): boolean;
/**
* A trap for `Object.setPrototypeOf()`.
* @param target The original object which is being proxied.
* @param newPrototype The object's new prototype or `null`.
*/
setPrototypeOf?(target: T, v: object | null): boolean;
}
interface ProxyConstructor {
/**
* Creates a revocable Proxy object.
* @param target A target object to wrap with Proxy.
* @param handler An object whose properties define the behavior of Proxy when an operation is attempted on it.
*/
revocable<T extends object>(target: T, handler: ProxyHandler<T>): { proxy: T; revoke: () => void; };
/**
* Creates a Proxy object. The Proxy object allows you to create an object that can be used in place of the
* original object, but which may redefine fundamental Object operations like getting, setting, and defining
* properties. Proxy objects are commonly used to log property accesses, validate, format, or sanitize inputs.
* @param target A target object to wrap with Proxy.
* @param handler An object whose properties define the behavior of Proxy when an operation is attempted on it.
*/
new <T extends object>(target: T, handler: ProxyHandler<T>): T;
}
declare var Proxy: ProxyConstructor;
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