jashkenas/coffeescript

Proposal: allow super in object literals

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#5,075 opened on May 23, 2018

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 (13 comments) (0 reactions) (0 assignees)CoffeeScript (1,980 forks)batch import
enhancementhelp wanted

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Description

As seen on MDN.

obj1 = ->
  method1: ->
    console.log 'method1'

obj2 =
  method2: ->
    super.method1()

Object.setPrototypeOf obj2, obj1
obj2.method2() # logs "method1"

The obj2 variable would transpile to:

obj2 = {
  method2() {
    super.method1();
  }
};

Contributor guide

Research direction
Investigate how CoffeeScript's parser and code generator handle super in classes, then design a similar approach for object literals, ensuring proper binding and compatibility.
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.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
CoffeeScriptJavaScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40