Question

A traverse object of type vpiTrvsObj is related to its parent object; it is a means to access the value data of said object. An object can have several traverse objects each pointing and moving in a different way along the value data horizon. This is shown graphically in the model diagram below. The traversable class is a representational grouping consisting of any object that:

• Has a name
• Can take on a value accessible with vpi_get_value(), the value must be variable over time (i.e. necessitates creation of a traverse object to access the value over time).

The class includes nets, net arrays, regs, reg arrays, variables, memory, primitive, primitive arrays, concurrent assertions, and parameters. It also includes part selects of all the design object types that can have part selects.

Figure 30-3 — Model diagram of traverse object

A collection object of type vpiObjCollection groups together a set of design objects Obj (of any type). A traverse collection object of type vpiTrvsCollection groups together a set of traverse objects trvsObj of type vpiTrvsObj.

Figure 30-4 — Model diagram of collection