can-reflect

Reflect allows you to reflection on unknown data types.

By looking for symbols in [can-symbol], can-reflect lets someone act upon any data type without having to have prior knowledge of it.

var Thing = function(){

};
Thing.prototype.method = function(){}

var canReflect = require("can-reflect");
canReflect.isConstructorLike(Thing) //-> true

The different reflections you can use are grouped by reflection type as follows:

• Type Reflections - Tell you what the value is.
  • .isConstructorLike
  • .isFunctionLike
  • .isIteratorLike
  • .isListLike
  • .isMapLike
  • .isMoreListThanMapLike (lists can often still be maps)
  • .isObservableLike
  • .isValueLike
  • .isSymbolLike
• Shape Reflections - Give you information about the value.
  • own and enumerable
    • .eachIndex
    • .eachKey
    • .each
    • .getOwnEnumerableKeys (aka .keys)
    • .toArray
  • own
    • .getOwnKeys
    • .getOwnKeyDescriptor
  • all (pending)
• Getter / Setter Reflections - get or set some value on another value.
  • .getKeyValue, .setKeyValue, .deleteKeyValue - for maps (get, set, and delete are aliases)
  • .getValue, .setValue - for things like computes
  • .splice, .addKeys(keyValues[,index]), .removeKeys(keysOrValues[,index]) (PENDING?)
• Function Reflections - call functions or create instances
  • .call
  • .apply
  • .new
• Observe Reflections - listen to when things change
  • .onKeyValue, .offKeyValue
  • .onKeys - when anything changes
  • .onKeysAdded, .onKeysRemoved
  • .getKeyDependencies - for debugging
  • .keyHasDependencies
  • .onValue, .offValue
  • .getValueDependencies
  • .valueHasDependencies
  • .onEvent, .offEvent - listen to an event on something

TODO:

• .deleteKeyValue, .get and .set aliases
• addKeys / removeKeys
• isInitializing