purelogic-ts

PureLogic-TS is an embedded DSL for describing map-reduce logic on TypeScript.

Bag Types

• Input
• One
• FlatMap
• DisjointUnion
• GroupBy. The key is always a string. ES6 Map shouldn't be used because some back-ends may serialize objects.
• Product

Bag Methods

See iterable-ts, lazy.js, lodash and underscore.

Back-ends

• Sync Memory
• Async Memory
• Event-based in Memory

Data And Data Operation Requirements

• Serializable. All data should be serializable.
• Immutable. All data operations (functions) should not change input data.

Serialazable Data

Use TypeScript interfaces instead of classes. The interface should contain properties and no functions.

Serialazible Union Type

interface MyUnion
{
    numberValue: number|undefined;
    stringValue: string|undefined;
}

For Developers

Required

• Node.js 6.7.0 or higher

Optional

• Visual Studio Code
• TypeScript npm install typescript@beta -g

Getting Started

• install dependencies npm install.
• run unit test and coverage npm test.

Cloud9

Run nvm install 6.7.0 && nvm use 6.7.0 in Cloud9 workspace.

Conventions And Rules

• Don't use class inheritance. Use interfaces and sealed classes.
• Print margin column (line width) is 100 symbols.
• Keep object properties immutable, see also https://github.com/Microsoft/TypeScript/pull/6532
• Keep object properties non-nullable, see also https://github.com/Microsoft/TypeScript/pull/7140

ES6

The project targets "ES6" because TypeScript 2.0 supports async only for "ES6" and above. According to ES6 Compatibility Table, we can use ES6 for

• Edge 14+ (Windows 10, Windows 10 Mobile, Xbox One),
• FireFox 48+,
• Chrome 53+ (including Android 4.2+),
• Node 6+,
• Safari 10 (OS X 10.12 Sierra, iOS 10 iPhone 5+).