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Added new label instance which can handle n numbers of keys and values #43

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@jarnura jarnura commented Apr 30, 2019

Added global vector register so access vectors globally

Added global vector register so access vectors globally
@@ -23,11 +27,15 @@ import qualified Control.Concurrent.STM as STM
-- | A 'Registry' is a list of all registered metrics, currently represented by
-- their sampling functions.
type Registry = [IO [SampleGroup]]
type VectorRegistry l m = [IO [(l,(Vector l m))]]
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What does the vector registry provide that the standard registry does not?

@@ -32,6 +32,9 @@ type Label0 = ()
instance Label () where
labelPairs () () = []

instance Label [Text] where
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The downside to using a list is that you don't get compile time checking that the number of values match the number of labels.

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