| //===--- MixedTypeArithmeticsDiagnostics4.swift ---------------------------===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| // RUN: %target-typecheck-verify-swift -swift-version 4 |
| |
| |
| func mixedTypeArithemtics() { |
| _ = (42 as Int64) + (0 as Int) // expected-error {{'+' is unavailable}} |
| |
| do { |
| var x = Int8() |
| x += (42 as Int) // expected-error {{'+=' is unavailable}} |
| } |
| |
| _ = (42 as Int32) - (0 as Int) // expected-error {{'-' is unavailable}} |
| |
| do { |
| var x = Int16() |
| x -= (42 as Int) // expected-error {{'-=' is unavailable}} |
| } |
| |
| // With Int on both sides should NOT result in warning |
| do { |
| var x = Int() |
| x += (42 as Int) |
| } |
| } |
| |
| func radar31909031() { |
| let x = UInt64() |
| let y = UInt64() |
| _ = (x - y) < UInt64(42) // should not produce a mixed-type warning |
| } |
