swift - Cannot convert value of type 'Foo!' to expected argument type 'Foo!' -


i'm baffled i've run couple of times. errors similar following

cannot convert value of type 'foo!' expected argument type 'foo!

'

i've searched so, haven't found explains why foo! isn't same foo!.

here's example:

// fooviewmodel.swift class fooviewmodel: baseviewmodel {     fileprivate var foo: foo!     fileprivate var bar: bar = bar()      init!(model: foo!) {         super.init()         foo = model     }      override init() {         super.init()     }      func setfoomodel(_ model: foo!) {         self.foo = model     }      func getfoomodel() -> foo! {         return self.foo     }      func getbar() -> bar {         return bar     }      func getblah() -> string {         return "blah"     } }

here unit test generates error:

import xctest @testable import woohoo  class fooviewmodeltests: xctestcase {      override func setup() {         super.setup()     }      override func teardown() {         super.teardown()     }      func testgetbar() {         var foo = foo()         let vm = fooviewmodel()          // following line generates error         vm.setfoomodel(foo)          xctassertequal("tell foo bar program.", vm.getblah())     } }

i've tried number of variations vm.setfoomodel(foo) no avail, e.g. vm.setfoomodel(foo!) or declaring foo var foo: foo! = foo().

edit: note code above illustrating issue i'm running , not operational code.

i figured out. view model part of tests target. after set run target only, issue resolved. fyi.


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