Method walk

util/jsonpath/jsonpath.go:139–168

walk visits tree rooted at the given node in DFS order

(value []reflect.Value, node Node)

// walk visits tree rooted at the given node in DFS order
func (j *JSONPath) walk(value []reflect.Value, node Node) ([]reflect.Value, error) {
	switch node := node.(type) {
	case *ListNode:
		return j.evalList(value, node)
	case *TextNode:
		return []reflect.Value{reflect.ValueOf(node.Text)}, nil
	case *FieldNode:
		return j.evalField(value, node)
	case *ArrayNode:
		return j.evalArray(value, node)
	case *FilterNode:
		return j.evalFilter(value, node)
	case *IntNode:
		return j.evalInt(value, node)
	case *BoolNode:
		return j.evalBool(value, node)
	case *FloatNode:
		return j.evalFloat(value, node)
	case *WildcardNode:
		return j.evalWildcard(value, node)
	case *RecursiveNode:
		return j.evalRecursive(value, node)
	case *UnionNode:
		return j.evalUnion(value, node)
	case *IdentifierNode:
		return j.evalIdentifier(value, node)
	default:
		return value, fmt.Errorf("unexpected Node %v", node)
	}
}

// evalInt evaluates IntNode
func (j *JSONPath) evalInt(input []reflect.Value, node *IntNode) ([]reflect.Value, error) {