Meziantou.Framework.WebPlatform.Scripting namespace

Classes

Name	Description
ClassicScript	A classic script (https://html.spec.whatwg.org/multipage/webappapis.html#classic-script) that the library asks the `ScriptEngine` to run: the script of a `script` element, a `javascript:` URL, or a string passed to `setTimeout()` or `setInterval()`.
ConsoleMessage	A message printed by the `console` namespace of a window (the Printer operation of the Console Standard, https://console.spec.whatwg.org/#printer), given to `BrowsingContextOptions.ConsoleMessage`.
EventHandlerCallback	The value of an event handler (https://html.spec.whatwg.org/multipage/webappapis.html#event-handlers) that is a callback of a script engine: an `EventHandler`, `OnErrorEventHandler` or `OnBeforeUnloadEventHandler` callback function. The library invokes it with the event handler processing algorithm and processes its return value (e.g. `return false` cancels the event).
EventHandlerSource	An event handler content attribute to compile (https://html.spec.whatwg.org/multipage/webappapis.html#getting-the-current-value-of-the-event-handler): the body of a function whose parameters are `EventHandlerSource.Parameters`, whose scope chain is the global environment of the realm of `EventHandlerSource.Window`, then `EventHandlerSource.Document`, `EventHandlerSource.Form` and `EventHandlerSource.Element` (when they are not null), and whose `this` value is the current target of the event.
ModuleFetchOptions	The options of the fetches of the module scripts (https://html.spec.whatwg.org/multipage/webappapis.html#script-fetch-options).
ModuleScript	A module script (https://html.spec.whatwg.org/multipage/webappapis.html#module-script): the root of a module graph, the script of a `<script type="module">` element, whose descendants are loaded and that is run by the `ScriptEngine` (see `ScriptEngine.LoadModuleScriptGraph` and `ScriptEngine.ExecuteModuleScript`).
NullValue	The value null, for the members whose type is `any` (whose .NET null value is `undefined`), e.g. the `ErrorEvent.Error` of the error event of a worker.
RejectedPromise	A promise rejected with a reason (e.g. the exception thrown by a callback whose return type is a promise), given to `ScriptEngine.WaitForAll`.
ScriptEngine	A JavaScript engine plugged into the browsing contexts (`BrowsingContextOptions.ScriptEngine`). The library never executes scripts by itself: it implements the processing model of the HTML Standard (script elements, event handlers, `javascript:` URLs, error reporting, the event loop) and calls the engine at the points the standard defines, so the engine only runs code.
ScriptError	The information of an exception reported by the library (https://html.spec.whatwg.org/multipage/webappapis.html#extract-error): the attributes of the `ErrorEvent` fired at the window.
UndefinedValue	The value undefined, returned by the members whose type is `any` and whose .NET null value is null.
WebIdlAgent<TAdapter, TValue>	The WebIDL bindings of the DOM for a JavaScript engine (an agent: the similar-origin window agent, or the agent of a worker): the realms of the global objects, and the JavaScript objects of the .NET objects. A platform object has a single JavaScript object, whichever realm accesses it, so the wrappers and the callbacks are shared by the realms.
WebIdlRealm<TAdapter, TValue>	The realm of a global object (https://html.spec.whatwg.org/multipage/webappapis.html#realms-settings-objects-global-objects): its global object is a window or the global object of a worker, and its interface objects expose the interfaces of the platform that are exposed in the global object. The interface objects of a realm are created on first use.

Structs

Name	Description
JsErrorInformation	The information of an error value (https://html.spec.whatwg.org/multipage/webappapis.html#extract-error).
JsPropertyDescriptor<TValue>	A property descriptor (https://tc39.es/ecma262/#sec-property-descriptor-specification-type).
ScriptLocation	A location in the source of a running script (see `ScriptEngine.GetCurrentScriptLocation`): the source file, line number and column number of the violations of the content security policies (https://w3c.github.io/webappsec-csp/#create-violation-for-global, step 2).

Interfaces

Name	Description
IJsAdapter<TValue>	The primitives of a JavaScript engine used by the WebIDL bindings (`WebIdlAgent<TAdapter, TValue>`). An engine exposes the DOM by implementing this interface with a struct: the bindings are generic over the adapter (`where TAdapter : struct, IJsAdapter<TValue>`), so the JIT specializes them for each engine (no boxing, no interface dispatch).
IJsCrossOriginObjectHandler<TValue>	The operations of a cross-origin object (https://html.spec.whatwg.org/multipage/nav-history-apis.html#cross-origin-objects): a `Location` object, or the `Window` of a WindowProxy (`IJsWindowProxyHandler<TValue>`). The engine implements the internal methods of the object with them (see `IJsAdapter<TValue>.CreateCrossOriginPlatformObject`): the ordinary internal methods when `IJsCrossOriginObjectHandler<TValue>.IsSameOrigin` is true, else the cross-origin ones.
IJsHostObjectHandler<TValue>	The internal methods of a host exotic object created by `IJsAdapter<TValue>.CreatePlatformObject` (the legacy platform objects, https://webidl.spec.whatwg.org/#es-legacy-platform-objects). Each method returns true when it handled the operation; otherwise the adapter performs the ordinary internal method.
IJsLazyAccessor<TValue>	Creates the functions of a lazy accessor property (`IJsAdapter<TValue>.DefineLazyAccessorProperty`): one object per property, which the adapter can give to the engine as the state of shared callbacks, instead of closures and their delegates.
IJsLazyValue<TValue>	Creates the value of a lazy data property (`IJsAdapter<TValue>.DefineLazyDataProperty`): one object per property, which the adapter can give to the engine as the state of a shared callback, instead of a closure and its delegate.
IJsWindowProxyHandler<TValue>	The operations of a WindowProxy exotic object (https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-windowproxy-exotic-object), created by `IJsAdapter<TValue>.CreateWindowProxy`. Its internal methods are the ones of the specification: the indexed properties are the WindowProxy objects of the child navigables, the other properties are the properties of the global object of `IJsWindowProxyHandler<TValue>.Window` (same origin) or the cross-origin properties.
IWebIdlHost	The services the WebIDL bindings need from the script engine that uses them: error reporting, and the bookkeeping of the JavaScript execution context stack around the callbacks.

Enums

Name	Description
ConsoleMessageLevel	The severity of a `ConsoleMessage`: the log levels of the WebDriver BiDi log entries (https://w3c.github.io/webdriver-bidi/#types-log-logentry).
JsBufferKind	The JavaScript objects of the buffer source types (https://webidl.spec.whatwg.org/#idl-buffer-source-types).
JsInternalSlot	The internal slots of the built-in objects read by the structured serialization (`IJsAdapter<TValue>.HasInternalSlot`).
JsPropertyFlags	The fields and attributes of a `JsPropertyDescriptor<TValue>`.
JsWellKnownSymbol	The well-known symbols used by the bindings.
ModuleType	The type of a module (https://html.spec.whatwg.org/multipage/webappapis.html#module-type-from-module-request).
PromiseRejectionOperation	The operation of the HostPromiseRejectionTracker abstract operation (https://tc39.es/ecma262/#sec-host-promise-rejection-tracker).

Delegates

Name	Description
JsHostConstructor<TValue>	A built-in constructor implemented in .NET (`IJsAdapter<TValue>.CreateConstructor`): `newTarget` is undefined when it is called without `new`.
JsHostFunction<TValue>	A built-in function implemented in .NET: returns the result of a call with `thisValue` and `arguments`.