qvtimperative

The Package for an Imperative QVT transformation.

An Imperative QVT trabsformation is expected to be created by an autogenerator that observes the following run-time restrictions:

A mapping that my be re-invoked must have MappingCall.isInfinite set for every possible invocation.

A mapping that reads object slots before they are guaranteed to have been assigned must declare the slots property in a corresponding ImperativeArea.checkedProperties entry.

A mapping that assigns an object slot that any mapping may access before assignment is guaranteed must declare declare the slots property in a corresponding ImperativeArea.enforcedProperties entry.

All reads by Functions/Queries must be guaranteed to succeed; i.e. the invoking mapping must check readiness before calling the query.

All writes to multi-valued properties must be guaranteed to occur before any read of the property.