Type Alias JSObjectDeletePropertyCallback

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

The callback invoked when deleting a property.

• ctx: The execution context to use.
• object: The JSObjectRef in which to delete the property.
• propertyName: A JSStringRef containing the name of the property to delete.
• exception: A pointer to a JSValueRef in which to return an exception, if any.

Returns true if propertyName was successfully deleted, otherwise false.

If you named your function DeleteProperty, you would declare it like this:

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

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

See also

• JSClassDefinition::deleteProperty
• JSObjectGetPropertyCallback
• JSObjectHasPropertyCallback
• JSObjectSetPropertyCallback
• JSObjectDeleteProperty()

Aliased Type

pub enum JSObjectDeletePropertyCallback {
    None,
    Some(unsafe extern "C" fn(*const OpaqueJSContext, *mut OpaqueJSValue, *mut OpaqueJSString, *mut *const OpaqueJSValue) -> bool),
}

Variants

None

No value.

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

Some value of type T.