Type Derived From is one of the interactive graphs Understand can draw of your code — call trees, dependencies, control flow, and more.
Type Derived From
Languages: AdaTargets: Types
Variants: Classic, Cluster, Compare, Relationship, Simplified
Show the Ada types a selected type is directly or indirectly derived from.
For a selected Ada tagged type, this shows an edge to the type it directly derives from, then recurses upward into that type’s own parent, building a multi-level ancestry chain.
Rooted at Calibrated_Sensor below, the graph shows an edge to its parent, Analog_Sensor, then continues up to Sensor. The inverse graph, Type Tree, shows the reverse relationship — everything derived from the selected type, directly or indirectly.
See the following code and corresponding graph
package Sensors is
type Sensor is tagged record
Id : Positive := 1;
Active : Boolean := False;
end record;
end Sensors;
with Sensors;
package Analog is
type Analog_Sensor is new Sensors.Sensor with record
Raw_Value : Float := 0.0;
Min_Range : Float := 0.0;
Max_Range : Float := 1.0;
end record;
end Analog;
with Analog;
package Calibrated is
type Calibrated_Sensor is new Analog.Analog_Sensor with record
Offset : Float := 0.0;
Scale : Float := 1.0;
end record;
end Calibrated;
Type Derived From - Classic
The Classic variant is similar to the Simplified variant, showing all relationships in a simple tree, but it uses a custom layout algorithm instead of Graphviz.
Type Derived From - Cluster
The Cluster variant groups entities by their containing class/file/architecture.
Type Derived From - Compare
The Compare variant shows how the graph has changed relative to the project's comparison database.
Type Derived From - Relationship
The Relationship variant filters the graph to only paths connecting the two entities.
Type Derived From - Simplified
The Simplified variant shows all relationships in a simple tree (no clusters)
