// If there is no such path, the result is nil.
func findPath(objMap map[Object]*declInfo, from, to Object, seen map[Object]bool) []Object {
	if seen[from] {
		return nil
	}
	seen[from] = true

	for d := range objMap[from].deps {
		if d == to {
			return []Object{d}
		}
		if P := findPath(objMap, d, to, seen); P != nil {
			return append(P, d)
		}
	}

	return nil
}

// If there is no such path, the result is nil.
func findPath(objMap map[Object]*declInfo, from, to Object, seen map[Object]bool) []Object {
	if seen[from] {
		return nil
	}
	seen[from] = true

	for d := range objMap[from].deps {
		if d == to {
			return []Object{d}
		}
		if P := findPath(objMap, d, to, seen); P != nil {
			return append(P, d)
		}
	}

	return nil
}

			mapKey := genGatewayMapKey(sGWSelector, sPortNumber)
			if _, exits := gwConflictingMap[mapKey]; !exits {
				objMap := make(map[string][]string)
				objMap[gwName] = server.GetHosts()
				gwConflictingMap[mapKey] = objMap
			} else {
				gwConflictingMap[mapKey][gwName] = server.GetHosts()
			}
		}
		return true
	})
	return gwConflictingMap
}

func declsFromParser(file *ast.File) map[token.Pos]token.Pos {
	objmap := map[token.Pos]token.Pos{}
	ast.Inspect(file, func(node ast.Node) bool {
		// Ignore blank identifiers to reduce noise.
		if ident, _ := node.(*ast.Ident); ident != nil && ident.Obj != nil && ident.Name != "_" {
			objmap[ident.Pos()] = ident.Obj.Pos()
		}
		return true
	})
	return objmap
}

}

// append appends an object to o.
func (o *ObjectSet) append(obj *object.K8sObject) {
	h := obj.Hash()
	o.objSlice = append(o.objSlice, obj)
	if o.objMap == nil {
		o.objMap = make(map[string]*object.K8sObject)
	}
	o.objMap[h] = obj
	o.keySlice = append(o.keySlice, h)
}

// size reports the length of o.
func (o *ObjectSet) size() int {
	return len(o.keySlice)
}

		check.error(ident, InvalidMainDecl, "cannot declare main - must be func")
		return
	}

	check.declare(check.pkg.scope, ident, obj, nopos)
	check.objMap[obj] = d
	obj.setOrder(uint32(len(check.objMap)))
}

// filename returns a filename suitable for debugging output.
func (check *Checker) filename(fileNo int) string {
	file := check.files[fileNo]
	if pos := file.Pos(); pos.IsKnown() {

		check.error(ident, InvalidMainDecl, "cannot declare main - must be func")
		return
	}

	check.declare(check.pkg.scope, ident, obj, nopos)
	check.objMap[obj] = d
	obj.setOrder(uint32(len(check.objMap)))
}

// filename returns a filename suitable for debugging output.
func (check *Checker) filename(fileNo int) string {
	file := check.files[fileNo]
	if pos := file.Pos(); pos.IsValid() {

	if debug {
		info := check.objMap[obj]
		inObjMap := info != nil && (info.fdecl == nil || info.fdecl.Recv == nil) // exclude methods
		isPkgObj := obj.Parent() == check.pkg.scope
		if isPkgObj != inObjMap {
			check.dump("%v: inconsistent object map for %s (isPkgObj = %v, inObjMap = %v)", obj.Pos(), obj, isPkgObj, inObjMap)
			panic("unreachable")
		}
	}

	// Count cycle objects.

	pkg  *Package
	*Info
	version goVersion              // accepted language version
	nextID  uint64                 // unique Id for type parameters (first valid Id is 1)
	objMap  map[Object]*declInfo   // maps package-level objects and (non-interface) methods to declaration info
	impMap  map[importKey]*Package // maps (import path, source directory) to (complete or fake) package
	// see TODO in validtype.go

	if debug {
		info := check.objMap[obj]
		inObjMap := info != nil && (info.fdecl == nil || info.fdecl.Recv == nil) // exclude methods
		isPkgObj := obj.Parent() == check.pkg.scope
		if isPkgObj != inObjMap {
			check.dump("%v: inconsistent object map for %s (isPkgObj = %v, inObjMap = %v)", obj.Pos(), obj, isPkgObj, inObjMap)
			panic("unreachable")
		}
	}

	// Count cycle objects.