mixin.md

function Class() {}
Class.prototype = mixin({
  // M3
  m3: function() {}
})

function mixin(obj) {
  obj.m1 = m1
  obj.m2 = m2
  return obj
}

// M1
function m1() {}
// M2
function m2() {}

function OtherClass() {}
OtherClass.prototype = mixin({
  // M4
  m4: function() {}
})

let c = new Class

c.m1 //doc: M1
c.m2 //doc: M2
c.m3 //doc: M3
c.m4 //: ?

let oc = new OtherClass

oc.m1 //doc: M1
oc.m3 //: ?
oc.m4 //doc: M4

mixin(new Date) //: Date
mixin("foo") //: string

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    "id": "0a6f7d71-7aef-11e6-853a-a34102e927ea",
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    "addr": "/oc/",
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      "!type": "+OtherClass",
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  }
]

Class	__DIR__/mixin.js	/Class/;"	f	lineno:1	type:void function()
prototype	__DIR__/mixin.js	/prototype/;"	v	lineno:2	namespace:Class
m3	__DIR__/mixin.js	/m3/;"	f	lineno:4	namespace:Class.prototype	type:void function()
mixin	__DIR__/mixin.js	/mixin/;"	f	lineno:7	type:!0 function(Class.prototype|string)
m1	__DIR__/mixin.js	/m1/;"	f	lineno:14	namespace:Class.prototype	type:void function()
m1	__DIR__/mixin.js	/m1/;"	f	lineno:14	type:void function()
m1	__DIR__/mixin.js	/m1/;"	f	lineno:14	namespace:OtherClass.prototype	type:void function()
m2	__DIR__/mixin.js	/m2/;"	f	lineno:16	type:void function()
m2	__DIR__/mixin.js	/m2/;"	f	lineno:16	namespace:OtherClass.prototype	type:void function()
m2	__DIR__/mixin.js	/m2/;"	f	lineno:16	namespace:Class.prototype	type:void function()
OtherClass	__DIR__/mixin.js	/OtherClass/;"	f	lineno:18	type:void function()
prototype	__DIR__/mixin.js	/prototype/;"	v	lineno:19	namespace:OtherClass
m4	__DIR__/mixin.js	/m4/;"	f	lineno:21	namespace:OtherClass.prototype	type:void function()
c	__DIR__/mixin.js	/c/;"	v	lineno:24	type:Class
oc	__DIR__/mixin.js	/oc/;"	v	lineno:31	type:OtherClass