@wordpress/interactivity/build-module/proxies/registry.mjs.map

Package that provides a standard and simple way to handle the frontend interactivity of Gutenberg blocks.

{
  "version": 3,
  "sources": ["../../src/proxies/registry.ts"],
  "sourcesContent": ["/**\n * Proxies for each object.\n */\nconst objToProxy = new WeakMap< object, object >();\nconst proxyToObj = new WeakMap< object, object >();\n\n/**\n * Namespaces for each created proxy.\n */\nconst proxyToNs = new WeakMap< object, string >();\n\n/**\n * Object types that can be proxied.\n */\nconst supported = new Set( [ Object, Array ] );\n\n/**\n * Returns a proxy to the passed object with the given handlers, assigning the\n * specified namespace to it. If a proxy for the passed object was created\n * before, that proxy is returned.\n *\n * @param namespace The namespace that will be associated to this proxy.\n * @param obj       The object to proxify.\n * @param handlers  Handlers that the proxy will use.\n *\n * @throws Error if the object cannot be proxified. Use {@link shouldProxy} to\n *         check if a proxy can be created for a specific object.\n *\n * @return The created proxy.\n */\nexport const createProxy = < T extends object >(\n\tnamespace: string,\n\tobj: T,\n\thandlers: ProxyHandler< T >\n): T => {\n\tif ( ! shouldProxy( obj ) ) {\n\t\tthrow Error( 'This object cannot be proxified.' );\n\t}\n\tif ( ! objToProxy.has( obj ) ) {\n\t\tconst proxy = new Proxy( obj, handlers );\n\t\tobjToProxy.set( obj, proxy );\n\t\tproxyToObj.set( proxy, obj );\n\t\tproxyToNs.set( proxy, namespace );\n\t}\n\treturn objToProxy.get( obj ) as T;\n};\n\n/**\n * Returns the proxy for the given object. If there is no associated proxy, the\n * function returns `undefined`.\n *\n * @param obj Object from which to know the proxy.\n * @return Associated proxy or `undefined`.\n */\nexport const getProxyFromObject = < T extends object >(\n\tobj: T\n): T | undefined => objToProxy.get( obj ) as T;\n\n/**\n * Gets the namespace associated with the given proxy.\n *\n * Proxies have a namespace assigned upon creation. See {@link createProxy}.\n *\n * @param proxy Proxy.\n * @return Namespace.\n */\nexport const getNamespaceFromProxy = ( proxy: object ): string =>\n\tproxyToNs.get( proxy )!;\n\n/**\n * Checks if a given object can be proxied.\n *\n * @param candidate Object to know whether it can be proxied.\n * @return True if the passed instance can be proxied.\n */\nexport const shouldProxy = (\n\tcandidate: any\n): candidate is Object | Array< unknown > => {\n\tif ( typeof candidate !== 'object' || candidate === null ) {\n\t\treturn false;\n\t}\n\treturn (\n\t\t! proxyToNs.has( candidate ) && supported.has( candidate.constructor )\n\t);\n};\n\n/**\n * Returns the target object for the passed proxy. If the passed object is not a registered proxy, the\n * function returns `undefined`.\n *\n * @param proxy Proxy from which to know the target.\n * @return The target object or `undefined`.\n */\nexport const getObjectFromProxy = < T extends object >(\n\tproxy: T\n): T | undefined => proxyToObj.get( proxy ) as T;\n"],
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  "names": []
}