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// RUN: %target-typecheck-verify-swift
func statement_starts() {
var f : (Int) -> ()
f = { (x : Int) -> () in }
f(0)
f (0)
f // expected-warning{{variable is unused}}
(0) // expected-warning {{integer literal is unused}}
var a = [1,2,3]
a[0] = 1
a [0] = 1
a // expected-warning{{variable is unused}}
[0, 1, 2] // expected-warning {{expression of type '[Int]' is unused}}
}
// Within a function
func test(i: inout Int, j: inout Int) {
// Okay
let q : Int; i = j; j = i; _ = q
if i != j { i = j }
// Errors
i = j j = i // expected-error{{consecutive statements}} {{8-8=;}}
let r : Int i = j // expected-error{{consecutive statements}} {{14-14=;}}
let s : Int let t : Int // expected-error{{consecutive statements}} {{14-14=;}}
_ = r; _ = s; _ = t
}
struct X {
// In a sequence of declarations.
var a, b : Int func d() -> Int {} // expected-error{{consecutive declarations}} {{17-17=;}}
var prop : Int { return 4
} var other : Float // expected-error{{consecutive declarations}} {{4-4=;}}
// Within property accessors
subscript(i: Int) -> Float {
get {
var x = i x = i + x return Float(x) // expected-error{{consecutive statements}} {{16-16=;}} expected-error{{consecutive statements}} {{26-26=;}}
}
set {
var x = i x = i + 1 // expected-error{{consecutive statements}} {{16-16=;}}
_ = x
}
}
}
class C {
// In a sequence of declarations.
var a, b : Int func d() -> Int {} // expected-error{{consecutive declarations}} {{17-17=;}}
init() {
a = 0
b = 0
}
}
protocol P {
func a() func b() // expected-error{{consecutive declarations}} {{11-11=;}}
}
enum Color {
case Red case Blue // expected-error{{consecutive declarations}} {{11-11=;}}
func a() {} func b() {} // expected-error{{consecutive declarations}} {{14-14=;}}
}
// At the top level
var i, j : Int i = j j = i // expected-error{{consecutive statements}} {{15-15=;}} expected-error{{consecutive statements}} {{21-21=;}}
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