Extendo property feature plans

Summary

The __extendo_map_ property feature is planned which will extend style properties with an arbitrary number of keys and values in a named map.

Purpose

Extendo maps should be very handy for quickly creating similar selectors.

Example

Consider the following selector definition:

  _mixin_map_ : {
    _fred_map_ : {
      _background_ : '_xfff_',
      _margin_     : '_0_'
    },
    _default_font_ : 'arial,sans'
  }

  _style_list_ = [
    { _selector_str_ : '#pcss-_switch_',
      _rule_map_     : {
        _color_        : '_x888_',
        _font_         : '_default_font_',
        __extendo_map_ : '_fred_map_'
      }
    }
  ];

The resulting CSS should be:

#pcss-_switch_{background:#fff;margin:000;color:#888;font:arial,sans}

Requirements

The __extendo_map_ key (or more appropriate alternate) should be reserved and will need to be interpreted as such:

Search for the specified anywhere in the cascade, and if found add the
properties of that map to the closure. If a map value for the provided key
(_fred_map_ in this example) is not found ignore this directive.

Status

This is currently WIP and is held in reserve. Prior implementation needs to be rethought.

Last updated

2017-07-05 mmikowski