Attempt to generate an object from a virtual class

Reports a problem when you create an object of the VIRTUAL class.

Example:

setClass('MyClass', slots = c('aa', 'bb'), contains = "VIRTUAL")
new('MyClass')

The most common usage of a VIRTUALl class is the class union, a virtual class that is defined in a call to setClassUnion() rather than a call to setClass().

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

RInstanceOfVirtualS4ClassInspection

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | R

Inspection ID: RInstanceOfVirtualS4ClassInspection

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection RInstanceOfVirtualS4ClassInspection

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

DataSpell 2025.2

Inspection Details
By default bundled with:	DataSpell 2025.2,
Can be installed with plugin:	R Language, 252.26661.0

Last modified: 18 September 2025