Module proxyhandler

Utilities for the implementation of JSAPI proxy handlers.

Structs

• CrossOriginProperties 🔒
  Property and method specs that correspond to the elements of CrossOriginProperties(O).

Constants

• ALLOWLISTED_SYMBOL_CODES 🔒

Functions

• append_cross_origin_allowlisted_prop_keys 🔒
  Append « "then", @@toStringTag, @@hasInstance, @@isConcatSpreadable » to props. This is used to implement CrossOriginOwnPropertyKeys.
• cross_origin_get 🔒
  Implementation of CrossOriginGet.
• cross_origin_get_own_property_helper 🔒
  Implementation of CrossOriginGetOwnPropertyHelper.
• cross_origin_has_own 🔒 ^⚠
  Evaluate CrossOriginGetOwnPropertyHelper(proxy, id) != null. SpiderMonkey-specific.
• cross_origin_own_property_keys 🔒
  Implementation of CrossOriginOwnPropertyKeys.
• cross_origin_property_fallback 🔒
  Implementation of CrossOriginPropertyFallback.
• cross_origin_set 🔒 ^⚠
  Implementation of CrossOriginSet.
• define_property 🔒 ^⚠
  Defines an expando on the given proxy.
• delete 🔒 ^⚠
  Deletes an expando off the given proxy.
• ensure_cross_origin_property_holder 🔒
  Get the holder for cross-origin properties for the current global of the JSContext, creating one and storing it in a slot of the proxy object if it doesn’t exist yet.
• ensure_expando_object 🔒 ^⚠
  Get the expando object, or create it if it doesn’t exist yet. Fails on JSAPI failure.
• get_expando_object 🔒
  Get the expando object, or null if there is none.
• get_getter_object 🔒
• get_prototype_if_ordinary 🔒 ^⚠
  If proxy (underneath any functionally-transparent wrapper proxies) has as its [[GetPrototypeOf]] trap the ordinary [[GetPrototypeOf]] behavior defined for ordinary objects, set *is_ordinary to true and store obj’s prototype in proto. Otherwise set *isOrdinary to false. In case of error, both outparams have unspecified value.
• get_setter_object 🔒
• id_to_source 🔒
• init
  Initialize the infrastructure for DOM proxy objects.
• is_accessor_descriptor 🔒
  https://tc39.es/ecma262/#sec-isaccessordescriptor
• is_cross_origin_allowlisted_prop 🔒
• is_data_descriptor 🔒
  https://tc39.es/ecma262/#sec-isdatadescriptor
• is_extensible 🔒 ^⚠
  Reports whether the object is Extensible
• maybe_cross_origin_get_prototype 🔒
  Implementation of [[GetPrototypeOf]] for Location.
• maybe_cross_origin_get_prototype_if_ordinary_rawcx 🔒 ^⚠
  Safety
• maybe_cross_origin_set_prototype_rawcx 🔒 ^⚠
  Implementation of [[SetPrototypeOf]] for Location and WindowProxy.
• maybe_cross_origin_set_rawcx 🔒 ^⚠
  Implementation of [[Set]] for Location.
• prevent_extensions 🔒 ^⚠
  Controls whether the Extensible bit can be changed
• report_cross_origin_denial 🔒
  Report a cross-origin denial for a property, Always returns false, so it can be used as return report_cross_origin_denial(...);.
• set_property_descriptor
  Set the property descriptor’s object to obj and set it to enumerable, and writable if readonly is true.
• shadow_check_callback 🔒 ^⚠
  Determine if this id shadows any existing properties for this proxy.