struct Data {
	name ?string
}

fn f() ?string {
	return none
}

fn g() ?int {
	return none
}

_ = '' + f()
_ = f() + ''
_ = f() + f()

_ = 4 + g()
_ = int(0) + g()
_ = g() + int(3)
_ = g() + 3

// binary operands
_ = 1 && 2
_ = true || 2

// boolean expressions
_ = 1 == 1 && 2 == 2 || 3 == 3
_ = 1 == 1 && 2 == 2 || 3 == 3 && 4 == 4
_ = 1 + println('')

// struct members
data := Data {
  'a name'
}
name := 'a name'
_ := data.name == 'a name'
_ := 'a name' == data.name
_ := data.name == name
_ := name == data.name

// these should not error
_ := data.name == none
_ := none == data.name