graph

type ResourceGraph interface {
	// Add a node into ResourceGraph.
	AddNode(node ResourceUID)

	// Add a edge into ResourceGraph, where dstNode depends on srcNode.
	AddEdge(srcNode ResourceUID, dstNode ResourceUID)

	// Nodes returns all nodes in ResourceGraph.
	Nodes() []ResourceUID

	// OutEdgeNodes returns all nodes that depends on this node.
	OutEdgeNodes(node ResourceUID) []ResourceUID
}

type ResourceUID struct {
	ResType reflect.Type
	ResID   string
}