jashkenas/coffeescript

Grammar, Nodes: Class fields/class property initializers

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#4,552 opened on May 16, 2017

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 (24 comments) (1 reaction) (0 assignees)CoffeeScript (1,982 forks)batch import
enhancementhelp wanted

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Description

We should be able to write the equivalent of

class C {
  b = 3;
  c = () => 4;
}

Can it be

class C
  b: 3
  c: () => 4;

or does the b property have different semantics?

Contributor guide

Research direction
Investigate how CoffeeScript's class body currently works and implement support for property initializers with assignment syntax (e.g., b = 3) or colon syntax, ensuring semantics match JavaScript class fields where appropriate.
Tech stack
javascript
Domain
compilers
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaScriptCoffeeScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30