Symbol resolution fails for primitive return value types

[phdmakk]

In the following example:

module test
{
 
    type component SOME_CT
    {
    //  var integer vg_someVar := 0;
    }
 
    function f()
    runs on SOME_CT
    return integer
    {
        return vg_someVar;
    }
 
}

Trying to resolve vg_someVar results in a crash while trying to find a corresponding enumerated value when the symbol cannot be resolved otherwise, producing

Exception in thread "main" java.lang.NullPointerException
        at de.ugoe.cs.swe.trex.core.analyzer.rfparser.symboltable.Scope.resolveEnumeratedReturnType(Scope.java:564)
        at de.ugoe.cs.swe.trex.core.analyzer.rfparser.symboltable.Scope.resolveEnumeratedValueNode(Scope.java:682)
        at de.ugoe.cs.swe.trex.core.analyzer.rfparser.symboltable.Scope.resolve(Scope.java:484)
        at org.etsi.t3d.visitor.VisitorCommonFunctions.getDeclarationNodeFromIdentifier(Unknown Source)
        at org.etsi.t3d.visitor.VisitorCommonFunctions.getDecLocationFromIdentifier(Unknown Source)
        at org.etsi.t3d.visitor.VisitorCommonFunctions.getReferences(Unknown Source)
        at org.etsi.t3d.visitor.VisitorCommonFunctions.getBehaviour(Unknown Source)
        at org.etsi.t3d.visitor.T3DVisitor.getModDefListBehaviour(Unknown Source)
        at org.etsi.t3d.visitor.T3DVisitor.getModuleBehaviour(Unknown Source)
        at org.etsi.t3d.visitor.T3DVisitor.visitTTCN3Module(Unknown Source)
        at org.etsi.t3d.visitor.AbstractVisitor.visit(Unknown Source)
        at org.etsi.t3d.visitor.AbstractVisitor.searchASTDepthFirst(Unknown Source)
        at org.etsi.t3d.visitor.AbstractVisitor.searchASTDepthFirst(Unknown Source)
        at org.etsi.t3d.visitor.AbstractVisitor.acceptDFS(Unknown Source)
        at org.etsi.t3d.T3D.run(Unknown Source)
        at org.etsi.t3d.T3D.main(Unknown Source)

Reported by Gustaf Johansson (Ericsson)

[phdmakk]

This issue affects both T3D and T3Q. It is an upstream issue in TRex resulting from an unchecked case where the return type is a primitive type.