Crate flowcore

flowcore defines core structs and traits used by other flow libraries and implementations

Modules

• content
  contains the file and http content provider implementations Content provider trait. It defines methods for for getting content of flows from files, http or library references.
• deserializers
  a set of serializers to read definition files from various text formats based on file extension deserializer modules provides a number of deserializers from different formats and also help methods to get a deserializer based on the file extension of a file referred to by a Url
• errors
  contains Error that other modules in this crate will use errors::*; to get access to everything error_chain creates.
• model
  defines many of the core data structures used across libraries and binaries model module defines a number of core data structures that are used across the compiler and the runtime and macros.
• provider
  is a trait definition that providers of content must implement
• url_helper
  Utility functions related to Urls

Constants

• DONT_RUN_AGAIN
  Use DONT_RUN_AGAIN to indicate that a function should not be executed more times
• RUN_AGAIN
  Use RUN_AGAIN to indicate that a function can be executed more times

Traits

• Implementation
  A function’s implementation must implement this trait with a single run() method that takes as input an array of values and it returns a Result tuple with an Optional output Value plus a RunAgain indicating if it should be run again. i.e. it has not “completed”, in which case it should not be called again.

Type Aliases

• RunAgain
  Implementations should return a value of type RunAgain to indicate if it should be executed more times in the future.