arch-stream

ArchStream

Modular stream for domain and data oriented program architecture design.

API

dist/arch-stream.d.ts

• ArchStream
• Proxy
• Message

Install

$ npm i arch-stream
$ bower install arch-stream

Usage

Message and Thenable data cannot send directly.

Modular stream

import { A as ArchStream } from 'arch-stream';

const add1 =
  ArchStream<number>()
    .trans(n => ++n)
    .export(),
      add2 =
  ArchStream<number>()
    .import(add1)
    .import(add1)
    .export(),
      add3 =
  ArchStream<number>()
    .import(add1)
    .import(add2)
    .export();

ArchStream<number>()
  .import(add1)
  .import(add2)
  .import(add3)
  .export()
  .read(n => console.log(n))
  .write(0)  // => 6
  .write(9); // => 15

Thenable

import { A as ArchStream } from 'arch-stream';

ArchStream<any>()
  .trans(n => new Promise(resolve => setTimeout(_ => resolve(n / 10), 100 - n)))
  .export()
  .read(n => console.log(n))
  .write(10)  // => 1
  .write(20); // => 2

Proxy

Unable use on TypeScript because untyped.

State

import { A as ArchStream } from 'arch-stream';

ArchStream<number>()
  .proxy(A.Proxy.State({index: [0, 1], indexer: n => n % 2, void: false}))
  .trans(n => n, n => -n)
  .export()
  .read(n => console.log(n))
  .write(1)  // => -1
  .write(2); // =>  2

Custom

Call order constraints (Type constraint)

Possible

• trans > trans
• trans > export
• trans > proxy
• proxy > trans
• proxy > proxy
• import > import
• import > export
• export > read
• read > write

Impossible

• trans > import
• trans > read
• export > trans
• export > import
• import > trans
• import > read
• read > read
• write > read

Browser

• Chrome
• Firefox
• IE9+
• Phantomjs

Test

$ npm i && grunt install
$ grunt test
$ grunt perf