Function next

gen/spec.go:293–310

type-switch dispatch to the correct method given the type of 'e'

(t traversal, e Elem)

// type-switch dispatch to the correct
// method given the type of 'e'
func next(t traversal, e Elem) {
	switch e := e.(type) {
	case *Map:
		t.gMap(e)
	case *Struct:
		t.gStruct(e)
	case *Slice:
		t.gSlice(e)
	case *Array:
		t.gArray(e)
	case *Ptr:
		t.gPtr(e)
	case *BaseElem:
		t.gBase(e)
	default:
		panic("bad element type")
	}
}

// possibly-immutable method receiver
func imutMethodReceiver(p Elem) string {