Completion

GtkSourceCompletion - Main Completion Object
GtkSourceCompletionContext - The context of a completion
GtkSourceCompletionInfo - Calltips object
GtkSourceCompletionItem - Simple implementation of GtkSourceCompletionProposal
GtkSourceCompletionProposal - Completion proposal interface
GtkSourceCompletionProvider - Completion provider interface
GtkSourceCompletionWords - A GtkSourceCompletionProvider for the completion of words