1 // Copyright 2013 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package bug 6 7 type Node interface { 8 Eval(s *Scene) 9 } 10 11 type plug struct { 12 node Node 13 } 14 15 type Scene struct { 16 changed map[plug]bool 17 } 18