Type Alias ul_next_sys::JSObjectGetPropertyCallback

pub type JSObjectGetPropertyCallback = Option<unsafe extern "C" fn(ctx: JSContextRef, object: JSObjectRef, propertyName: JSStringRef, exception: *mut JSValueRef) -> JSValueRef>;

@typedef JSObjectGetPropertyCallback @abstract The callback invoked when getting a property’s value. @param ctx The execution context to use. @param object The JSObject to search for the property. @param propertyName A JSString containing the name of the property to get. @param exception A pointer to a JSValueRef in which to return an exception, if any. @result The property’s value if object has the property, otherwise NULL. @discussion If you named your function GetProperty, you would declare it like this:

JSValueRef GetProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef* exception);

If this function returns NULL, the get request forwards to object’s statically declared properties, then its parent class chain (which includes the default object class), then its prototype chain.

Aliased Type

enum JSObjectGetPropertyCallback {
    None,
    Some(unsafe extern "C" fn(_: *const OpaqueJSContext, _: *mut OpaqueJSValue, _: *mut OpaqueJSString, _: *mut *const OpaqueJSValue) -> *const OpaqueJSValue),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *const OpaqueJSContext, _: *mut OpaqueJSValue, _: *mut OpaqueJSString, _: *mut *const OpaqueJSValue) -> *const OpaqueJSValue)

Some value of type T.