metadata

Documentation

Index

• type Meta
  • func WithValue(parent *Meta, key, value interface{}) *Meta
  • func (c *Meta) Value(key interface{}) interface{}

Types

type Meta

type Meta struct {
	// contains filtered or unexported fields
}

Meta represents a metadata store capable of holding values that extend a given struct through a context Value like approach.

func WithValue

func WithValue(parent *Meta, key, value interface{}) *Meta

WithValue returns a copy of parent in which the value associated with key is val.

func (*Meta) Value

func (c *Meta) Value(key interface{}) interface{}

Value compares the given key with the value key inside the given meta object. If the keys match is the value returned. If the keys do not match is the parent object called.