JS_BindCallable 编辑

This article covers features introduced in SpiderMonkey 17

Bind the given callable to use the given object as this.

Syntax

JSObject*
JS_BindCallable(JSContext *cx, JS::Handle<JSObject*> callable,
                JS::Handle<JSObject*> newThis);

Name	Type	Description
`cx`	`JSContext *`	Pointer to a JS context from which to derive runtime information. Requires request. In a `JS_THREADSAFE` build, the caller must be in a request on this `JSContext`.
`callable`	`JS::Handle<JSObject*>`	Pointer to the function object to bind new `this`.
`newThis`	`JS::Handle<JSObject*>`	Pointer to the new `this` value for `callable`.

JS_BindCallable binds the given callable to use the given object as this.

If callable is not callable, will throw and return nullptr.