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27 lines
705 B
27 lines
705 B
5 years ago
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var pull = require('pull-stream')
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var defer = require('pull-defer/source')
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// Currently this uses pull streams,
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// and not levelup's readstream, but in theory
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// I should be able pretty much just drop that in.
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module.exports = function pullReadStream (options, makeData) {
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var stream = defer()
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stream.setIterator = function (iterator) {
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stream.resolve(function (end, cb) {
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if(!end) iterator.next(function (err, key, value) {
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if(err) return cb(err)
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if(key === undefined || value === undefined)
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return cb(true)
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cb(null, makeData(key, value))
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})
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else
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iterator.end(cb)
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})
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}
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return stream
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}
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