What is type context?

Question

I'm currently stuck to understand which variables are considered to be local, and which are global.

In docs we can read that:

Global variables are variables that are defined outside of any function, method, closure, or type context.

I'm guessing that: variables defined in type context == type/instance variables defined inside class/struct?

For example:

var foo = "foo" // global variable

class Foobar {
  static var foo = "foo" // local variable -> declared inside Foobar type context
  var bar = "bar" // local variable -> declared inside Foobar type context

  func foobar() {
    var foo = "" // local variable -> declared inside method
  }
}

Answer 1

You are absolutely correct, variables defined inside class context become either instance variables or type variables.cVariables defined inside the context of a function, method, or a closure become local variables.

A declaration of a global variable must be at the top level, outside of classes, functions, and so on.