func NodeNew(name string, ntype bh.NodeTypeIf, context bh.SignalGraphTypeIf) (ret *node, err error) {
for _, n := range context.Nodes() {
if n.Name() == name {
err = fmt.Errorf("NodeNew error: node '%s' already exists in context.", name)
return
}
}
if len(ntype.InPorts())+len(ntype.OutPorts()) == 0 {
err = fmt.Errorf("NodeNew error: type '%s' has no ports.", ntype.TypeName())
return
}
ret = &node{*gr.PathModePositionerObjectNew(), context, name, ntype,
portListInit(), portListInit(), nil, false}
for _, p := range ntype.InPorts() {
ret.addInPort(p)
}
for _, p := range ntype.OutPorts() {
ret.addOutPort(p)
}
ntype.(*nodeType).addInstance(ret)
return
}
// TODO: Create namedPortType object first and hand it here?
func newPort(pt bh.PortTypeIf, n bh.NodeIf) *port {
return &port{*gr.PathModePositionerObjectNew(), pt, portListInit(), nil, n}
}