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// RUN: %target-typecheck-verify-swift -disable-availability-checking -enable-experimental-feature SendingArgsAndResults -strict-concurrency=complete -enable-upcoming-feature RegionBasedIsolation
// REQUIRES: asserts
func testArg(_ x: sending String) {
}
func testResult() -> sending String {
""
}
func testArgResult(_ x: sending String) -> sending String {
}
func testVarDeclDoesntWork() {
var x: sending String // expected-error {{'sending' may only be used on parameter}}
}
func testVarDeclTupleElt() -> (sending String, String) {} // expected-error {{'sending' cannot be applied to tuple elements}}
func testVarDeclTuple2(_ x: (sending String)) {}
func testVarDeclTuple2(_ x: (sending String, String)) {} // expected-error {{'sending' cannot be applied to tuple elements}}
func testArgWithConsumingWrongOrder(_ x: sending consuming String, _ y: sending inout String) {}
// expected-error @-1 {{'sending' must be placed after specifier 'consuming'}}
// expected-error @-2 {{'sending' must be placed after specifier 'inout'}}
func testArgWithConsumingWrongOrderType(_ x: (sending consuming String, sending inout String) -> ()) {}
// expected-error @-1 {{'sending' must be placed after specifier 'consuming'}}
// expected-error @-2 {{'sending' must be placed after specifier 'inout'}}
func testBorrowSending(_ x: borrowing sending String) {}
// expected-error @-1 {{'sending' cannot be used together with 'borrowing'}}
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