func transformPermission(node1 *permissionNode, node2 *permissionNode) (tnode1, tnode2 *permissionNode, err os.Error) {
p1 := *node1
p2 := *node2
p1.Permission, p2.Permission, err = ot.TransformPermission(node1.Permission, node2.Permission)
tnode1 = &p1
tnode2 = &p2
return
}
func transform(node1 otNode, node2 otNode) (tnode1, tnode2 otNode, err os.Error) {
tnode1 = node1
tnode2 = node2
switch node1.(type) {
case *mutationNode:
switch node2.(type) {
case *mutationNode:
m1 := *(node1.(*mutationNode))
m2 := *(node2.(*mutationNode))
m1.mutation, m2.mutation, err = ot.Transform(node1.(*mutationNode).mutation, node2.(*mutationNode).mutation)
tnode1 = &m1
tnode2 = &m2
case *permissionNode, *keepNode:
// Do nothing by intention
default:
panic("Unknown node type")
}
case *permissionNode:
switch node2.(type) {
case *mutationNode, *keepNode:
// Do nothing by intention
case *permissionNode:
p1 := *(node1.(*permissionNode))
p2 := *(node2.(*permissionNode))
p1.permission, p2.permission, err = ot.TransformPermission(node1.(*permissionNode).permission, node2.(*permissionNode).permission)
tnode1 = &p1
tnode2 = &p2
default:
panic("Unknown node type")
}
case *keepNode:
// Do nothing by intention
default:
panic("Unknown node type")
}
return
}