jsctags/examples/class.md

jsctags generator

```js
class Point2 {
  constructor(x, y) { this.x = x; this.y = y }
  plus(pt) {
    this //: Point2
    pt //: Point2
    return new Point2(this.x + pt.x, this.y + pt.y)
  }
  get xx() { return this.x }
  quux() { return 1 }
  static origin() { return new Point2(0, 0) }
}

class Point4 extends Point3 {
  constructor(x, y, z, u) { super(x, y, z); this.u = u }
  argh() { return 2 }
}

var Point3 = class extends Point2 {
  constructor(x, y, z) { super(x, y); this.z = z }
  foobar() { return true }
}

var p1 = new Point2(1, 2)
p1.x //: number
p1 //: Point2
var p2 = Point2.origin()
p2 //: Point2
p1.plus(p2) //: Point2
p1.foobar() //: ?
p1.xx //: number

var p3 = new Point3(0, 0, 5)
p3 //: Point3
p3.quux() //: number
p3.foobar() //: bool

var p4 = new Point4(1, 2, 3, 4)
p4 //: Point4
p4.argh() //: number
p4.foobar() //: bool
p4.quux() //: number
```
```json
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    "name": "Point2",
    "addr": "/Point2/",
    "kind": "f",
    "type": "void function(number, number)",
    "lineno": 1,
    "origin": {
      "!span": "6[0:6]-12[0:12]",
      "!type": "fn(x: number, y: number)",
      "!data": {
        "isConstructor": true,
        "type": "Function.prototype"
      }
    },
    "tagfile": "__DIR__/class.js"
  },
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    "name": "prototype",
    "addr": "/class Point2 \{/",
    "kind": "v",
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    "namespace": "Point2",
    "parent": "e55a14f0-7aee-11e6-87ea-6121cd12970c",
    "origin": {
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    "lineno": 2,
    "namespace": "Point4",
    "parent": "e55de584-7aee-11e6-87ea-6121cd12970c",
    "origin": {
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  },
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  },
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      }
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    "tagfile": "__DIR__/class.js"
  },
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    "name": "p4",
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    "origin": {
      "!span": "742[36:4]-744[36:6]",
      "!type": "+Point4",
      "!data": {
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        "type": "Point4.prototype"
      }
    },
    "tagfile": "__DIR__/class.js"
  }
]
```
```ctags
Point2	__DIR__/class.js	/Point2/;"	f	lineno:1	type:void function(number, number)
prototype	__DIR__/class.js	/class Point2 \{/;"	v	lineno:1	namespace:Point2
x	__DIR__/class.js	/x/;"	v	lineno:2	namespace:Point4	type:number
x	__DIR__/class.js	/x/;"	v	lineno:2	namespace:Point2.prototype.plus.pt	type:number
y	__DIR__/class.js	/y/;"	v	lineno:2	namespace:Point2.prototype.plus.pt	type:number
y	__DIR__/class.js	/y/;"	v	lineno:2	namespace:Point4	type:number
y	__DIR__/class.js	/y/;"	v	lineno:2	namespace:Point2	type:number
x	__DIR__/class.js	/x/;"	v	lineno:2	namespace:Point2	type:number
plus	__DIR__/class.js	/plus/;"	f	lineno:3	namespace:Point2.prototype	type:Point2 function(+Point2)
pt	__DIR__/class.js	/pt/;"	v	lineno:3	namespace:Point2.prototype.plus	type:Point2
xx	__DIR__/class.js	/xx/;"	v	lineno:8	namespace:Point2.prototype	type:number
quux	__DIR__/class.js	/quux/;"	f	lineno:9	namespace:Point2.prototype	type:number function()
origin	__DIR__/class.js	/origin/;"	f	lineno:10	namespace:Point2	type:Point2 function()
Point4	__DIR__/class.js	/Point4/;"	f	lineno:13	type:void function(number, number, number, number)
prototype	__DIR__/class.js	/class Point4 extends Point3 \{/;"	v	lineno:13	namespace:Point4
u	__DIR__/class.js	/u/;"	v	lineno:14	namespace:Point4	type:number
argh	__DIR__/class.js	/argh/;"	f	lineno:15	namespace:Point4.prototype	type:number function()
Point3	__DIR__/class.js	/Point3/;"	f	lineno:18	type:void function(number, number, number)
prototype	__DIR__/class.js	/class extends Point2 \{/;"	v	lineno:18	namespace:Point3
x	__DIR__/class.js	/x/;"	v	lineno:19	namespace:Point3	type:number
y	__DIR__/class.js	/y/;"	v	lineno:19	namespace:Point3	type:number
z	__DIR__/class.js	/z/;"	v	lineno:19	namespace:Point3	type:number
z	__DIR__/class.js	/z/;"	v	lineno:19	namespace:Point4	type:number
foobar	__DIR__/class.js	/foobar/;"	f	lineno:20	namespace:Point3.prototype	type:boolean function()
p1	__DIR__/class.js	/p1/;"	v	lineno:23	type:Point2
p2	__DIR__/class.js	/p2/;"	v	lineno:26	type:Point2
p3	__DIR__/class.js	/p3/;"	v	lineno:32	type:Point3
p4	__DIR__/class.js	/p4/;"	v	lineno:37	type:Point4
```