how-to-get-arbitrary-type-from-tern

fabio@thinkpadlel ♥  node
> var infer = require('tern/lib/infer')
> infer.parse
[Function]
> var parsed = infer.parse('var x=[1,2,3]')
undefined
> var ctx = new infer.Context()
undefined
> var nodeState; infer.withContext(ctx, () => { nodeState = infer.expressionType({ node: parsed.body[0].declarations[0].init, state: ctx.topScope }) })
undefined
> nodeState
{ props:
   { '<i>':
      { types: [Object],
        forward: null,
        maxWeight: 100,
        propertyOf: [Circular],
        propertyName: '<i>',
        originNode: undefined,
        origin: null } },
  proto:
   { props: {}, 
     proto:
      { props: {},
        proto: null,
        name: 'Object.prototype',
        maybeProps: null,
        origin: 'ecma5' },
     name: 'Array.prototype',
     maybeProps: null,
     origin: 'ecma5' },
  name: 'Array', 
  maybeProps: null,
  origin: null,
  tuple: 0 }
> 
(To exit, press ^C again or type .exit)
>
fabio@thinkpadlel ♥