Files
swift-mirror/test/Interpreter/capture_top_level.swift
David Farler 3f635d04c7 Reinstante var bindings in refutable patterns, except function parameters.
This reverts commits: b96e06da44,
                      8f2fbdc93a,
                      93b6962478,
                      64024118f4,
                      a759ca9141,
                      3434f9642b,
                      9f33429891,
                      47c043e8a6.

This commit leaves 'var' on function parameters as a warning to be
merged into Swift 2.2. For Swift 3, this will be an error, to be
converted in a follow-up.
2016-01-29 15:27:08 -08:00

48 lines
1.0 KiB
Swift

// RUN: %target-run-simple-swift | FileCheck %s
// RUN: %target-build-swift -DVAR %s -o %t-var
// RUN: %target-run %t-var | FileCheck %s
// RUN: %target-build-swift -DVAR_UPDATE %s -o %t-var
// RUN: %target-run %t-var | FileCheck %s
// REQUIRES: executable_test
#if VAR_UPDATE
guard var x = Optional(0) else { fatalError() }
#elseif VAR
guard var x = Optional(42) else { fatalError() }
#else
guard let x = Optional(42) else { fatalError() }
#endif
_ = 0 // intervening code
func function() {
print("function: \(x)")
}
let closure: () -> Void = {
print("closure: \(x)")
}
defer {
print("deferred: \(x)")
}
#if VAR_UPDATE
x = 42
#endif
let closureCapture: () -> Void = { [x] in
// Must come after the assignment because of the capture by value.
print("closure-capture: \(x)")
}
print("go! \(x)") // CHECK-LABEL: go! 42
function() // CHECK-NEXT: function: 42
closure() // CHECK-NEXT: closure: 42
closureCapture() // CHECK-NEXT: closure-capture: 42
print("done?") // CHECK-NEXT: done?
// CHECK-NEXT: deferred: 42