strictNullChecks fails to prevent undefined assignments

[start]

TypeScript Version: 2.4.0 / nightly (2.5.0-dev.201xxxxx)

This example currently compiles in the TypeScript playground with strictNullChecks enabled.

Code

With strictNullChecks enabled:

class Widget {
  price: number

  // This example compiles with and without a constructor
  constructor() { }
}

const widget = new Widget()
const somePrice: number = widget.price

Expected behavior:

I expect a compilation error. Widget's price field is not nullable, but every constructed widget will have an undefined price.

The constructor should ensure price is non-null.

Actual behavior:

The code compiles. Two non-nullable numbers are set to undefined: somePrice and widget.price.

P.S. I'm in love with TypeScript. Thank you for your amazing work!

[RyanCavanaugh]

Duplicate of #8476

[start]

Oops. Sorry about that!

[mhegazy]

Automatically closing this issue for housekeeping purposes. The issue labels indicate that it is unactionable at the moment or has already been addressed.