private import rust

predicate toBeTested(Element e) {
  not e instanceof CrateElement and
  not e instanceof Builtin and
  (
    not e instanceof Locatable
    or
    e.(Locatable).fromSource()
  )
}

class CrateElement extends Element {
  CrateElement() {
    this instanceof Crate or
    this instanceof NamedCrate
  }
}

class Builtin extends AstNode {
  Builtin() { this.getFile().getAbsolutePath().matches("%/builtins/%.rs") }
}