Feature Request: Allow composition of computed decorators

[mwpastore]

For feature parity with ember-macro-helpers and ember-awesome-macros.

This works:

import EmberObject from 'ember-object';

import or from 'ember-awesome-macros/or';
import computed from 'ember-macro-helpers/computed';

export default EmberObject.extend({
  foo: computed(or('bar', 'qux'), function(barOrQux) {
  })
});

This, sadly, does not:

import EmberObject from 'ember-object';

import computed, { or } from 'ember-computed-decorators';

export default EmberObject.extend({
  @computed @or('bar', 'qux') // or @computed(or(..))
  foo(barOrQux) {
  }
});

This works (with kellyselden/ember-awesome-macros#348):

import EmberObject from 'ember-object';

import mapBy from 'ember-awesome-macros/array/map-by';
import sum from 'ember-awesome-macros/sum';
import raw from 'ember-macro-helpers/raw';

export default EmberObject.extend({
  items: [],
  
  totalQuantity: sum(mapBy('items', raw('quantity')))
});

This, sadly, does not:

import EmberObject from 'ember-object';

import { mapBy, sum } from 'ember-computed-decorators';

export default EmberObject.extend({
  items: [],

  @sum @mapBy('items', 'quantity') // or @sum(mapBy(..))
  totalQuantity
});

[rwjblue]

Thank you for opening the issue with detailed examples! I think that we can make this work...

[pzuraq]

Reopened on the auto-computed decorator repo: ember-decorators/auto-computed#4