pull-generate

A pull-stream source that produces data on state transitions

Simple Example

var generate = require('pull-generate')
var pull = require('pull-stream')

pull(
    generate(0, function(state, cb) {
        cb(state>3 ? true : null, 1<<state, state + 1)
    }),
    pull.log()
)

// ==> 1 2 4 8

Usage

generate(initialState, expand [, onAbort])

• expand: function that is called with initialstate and a callback.
  • the callback has the following signature: callback(err, data, newState)
    • err
      • null to pass data downstream (normal operation)
      • true indicates the end of the stream
      • everything else is treated as an error
    • data is send downstream (only if err === null)
    • newState is used as state in the next call to expand.
• onAbort: optional function that is called after the stream ended
  • is called with null or an error object

License

MIT