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Add Data.Text.Lazy.Builder.toText #295

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5 changes: 5 additions & 0 deletions src/Data/Text/Internal/Builder.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,7 @@ module Data.Text.Internal.Builder
Builder
, toLazyText
, toLazyTextWith
, toText

-- ** Constructing Builders
, singleton
Expand Down Expand Up @@ -231,6 +232,10 @@ toLazyTextWith :: Int -> Builder -> L.Text
toLazyTextWith chunkSize m = L.fromChunks (runST $
newBuffer chunkSize >>= runBuilder (m `append` flush) (const (return [])))

-- | /O(n)./ Extract a strict @Text@ from a @Builder@.
toText :: Builder -> Text
toText = L.toStrict . toLazyText

-- | /O(1)./ Pop the strict @Text@ we have constructed so far, if any,
-- yielding a new chunk in the result lazy @Text@.
flush :: Builder
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1 change: 1 addition & 0 deletions src/Data/Text/Lazy/Builder.hs
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Expand Up @@ -43,6 +43,7 @@ module Data.Text.Lazy.Builder
Builder
, toLazyText
, toLazyTextWith
, toText

-- * Constructing Builders
, singleton
Expand Down