FirebasePerformance Framework Reference

PerformanceAttributable

protocol PerformanceAttributable : NSObjectProtocol

Defines the interface that allows adding/removing attributes to any object.

• attributes

  List of attributes.

  Declaration

  Swift

  var attributes: [String : String] { get }

• setValue(_:forAttribute:)

  Sets a value as a string for the specified attribute. Updates the value of the attribute if a value had already existed.

  Declaration

  Swift

  func setValue(_ value: String, forAttribute attribute: String)

  Parameters

  value	The value that needs to be set/updated for an attribute. If the length of the value exceeds the maximum allowed, the value will be truncated to the maximum allowed.
  attribute	The name of the attribute. If the length of the value exceeds the maximum allowed, the value will be truncated to the maximum allowed.

• value(forAttribute:)

  Reads the value for the specified attribute. If the attribute does not exist, returns nil.

  Declaration

  Swift

  func value(forAttribute attribute: String) -> String?

  Parameters

  attribute

  The name of the attribute.

  Return Value

  The value for the attribute. Returns nil if the attribute does not exist.

• removeAttribute(_:)

  Removes an attribute from the list. Does nothing if the attribute does not exist.

  Declaration

  Swift

  func removeAttribute(_ attribute: String)

  Parameters

  attribute

  The name of the attribute.