Copyright (C) 1994, Digital Equipment Corp. INTERFACEGEFInternal ; IMPORT GEF, GraphVBT; TYPE ArcEdge = GraphVBT.Edge OBJECT arc: GEF.Arc; END; Edges = REF ARRAY OF ArcEdge; ArcInternal = GEF.ArcPublic BRANDED OBJECT edges: Edges; END; REVEAL GEF.Arc <: ArcInternal; END GEFInternal.