UsageTracker

[thosakwe]

Should definitely be an extends FrayBaseVisitor<List<TrackedSymbol>>.

SymbolUsage.java:

public class SymbolUsage {
  public ParserRuleContext getSource();
}

TrackedSymbol.java:

public class TrackedSymbol {
  public String getName();
  public List<SymbolUsage> getUsages();
}

UsageTracker.java:

public class UsageTracker extends FrayBaseVisitor<List<TrackedSymbol>> {}

[thosakwe]

Ok, I lied.

But the tracker should use the above three classes.

[thosakwe]

Usage subclass include:

• val read, write
• method invocation
• constructor invocation
• interp counts as read
• used as annotation
• type referenced