inject

Documentation

Index

• func Extract(name, tag string) (found bool, value string, err error)
• func Populate(values ...interface{}) error
• type Graph
  • func (g *Graph) GetObjectByName(name string) (interface{}, error)
  • func (g *Graph) Objects() []*Object
  • func (g *Graph) Populate() error
  • func (g *Graph) Provide(objects ...*Object) error
• type Logger
• type Object
  • func (o *Object) String() string

Functions

func Extract

func Extract(name, tag string) (found bool, value string, err error)

Extract the quoted value for the given name returning it if it is found. The found boolean helps differentiate between the "empty and found" vs "empty and not found" nature of default empty strings.

func Populate

func Populate(values ...interface{}) error

Populate is a short-hand for populating a graph with the given incomplete object values.

Types

type Graph

type Graph struct {
	Logger Logger // Optional, will trigger debug logging.
	// contains filtered or unexported fields
}

The Graph of Objects.

func (*Graph) GetObjectByName

func (g *Graph) GetObjectByName(name string) (interface{}, error)

GetObjectByName 根据name获取对象

func (*Graph) Objects

func (g *Graph) Objects() []*Object

Objects returns all known objects, named as well as unnamed. The returned elements are not in a stable order.

func (*Graph) Populate

func (g *Graph) Populate() error

Populate the incomplete Objects.

func (*Graph) Provide

func (g *Graph) Provide(objects ...*Object) error

Provide objects to the Graph. The Object documentation describes the impact of various fields.

type Logger

type Logger interface {
	Debugf(format string, v ...interface{})
}

Logger allows for simple logging as inject traverses and populates the object graph.

type Object

type Object struct {
	Value    interface{}
	Name     string             // Optional
	Complete bool               // If true, the Value will be considered complete
	Fields   map[string]*Object // Populated with the field names that were injected and their corresponding *Object.
	// contains filtered or unexported fields
}

An Object in the Graph.

func (*Object) String

func (o *Object) String() string

String representation suitable for human consumption.