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Add onceDrain #28

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Add onceDrain #28

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8 changes: 8 additions & 0 deletions src/Node/Stream.js
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,14 @@ exports.onDataEitherImpl = function (readChunk) {
};
};

exports.onceDrain = function (s) {
return function (f) {
return function () {
s.once("drain", f);
};
};
};

exports.onEnd = function (s) {
return function (f) {
return function () {
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7 changes: 7 additions & 0 deletions src/Node/Stream.purs
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Expand Up @@ -192,6 +192,13 @@ foreign import onReadable
-> Effect Unit
-> Effect Unit

-- | Listen for `drain` event only once.
foreign import onceDrain
:: forall w
. Readable w
-> Effect Unit
-> Effect Unit

-- | Listen for `end` events.
foreign import onEnd
:: forall w
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