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// RUN: %target-swift-frontend -emit-sil -verify %s
func consume<T>(_: consuming T) {}
func testSingleBlock<T>(x: inout T, y: T) {
defer { x = y }
consume(consume x)
}
func cond() -> Bool { fatalError() }
// TODO: should be accepted
func testAlwaysReinitAfterConditional<T>(x: inout T, y: T) { // not-really expected-error{{used after consume}}
defer {
if cond() { }
x = y // not-really expected-note{{}}
}
consume(consume x) // not-really expected-note{{}}
}
// TODO: should be accepted
func testAlwaysReinitBeforeConditional<T>(x: inout T, y: T) { // not-really expected-error{{used after consume}}
defer {
x = y // not-really expected-note{{}}
if cond() { }
}
consume(consume x) // not-really expected-note{{}}
}
// TODO: should be accepted
func testAlwaysReinitInBothBranchesOfConditional<T>(x: inout T, y: T) { // not-really expected-error{{used after consume}}
defer {
if cond() {
x = y // not-really expected-note{{}}
} else {
x = y
}
}
consume(consume x) // not-really expected-note{{}}
}
// TODO: should raise an error about inout not being reinitialized on all paths
func testSometimesReinitInConditional<T>(x: inout T, y: T) { // not-really expected-error{{used after consume}}
defer {
if cond() {
x = y // not-really expected-note{{}}
} else {
// ex/pected-note {{not initialized on this path}}
}
}
consume(consume x) // not-really expected-note{{}}
}
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