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'use strict' |
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var abortCb = require('../util/abort-cb') |
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module.exports = function once (value, onAbort) { |
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return function (abort, cb) { |
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if(abort) |
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return abortCb(cb, abort, onAbort) |
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if(value != null) { |
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var _value = value; value = null |
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cb(null, _value) |
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} else |
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cb(true) |
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} |
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} |
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