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|
// RUN: %target-typecheck-verify-swift -enable-invalid-ephemeralness-as-error -disable-objc-interop
// Test availability attributes on UnsafePointer initializers.
// Assume the original source contains no UnsafeRawPointer types.
func unsafePointerConversionAvailability(
mrp: UnsafeMutableRawPointer,
rp: UnsafeRawPointer,
umpv: UnsafeMutablePointer<Void>, // expected-warning {{UnsafeMutablePointer<Void> has been replaced by UnsafeMutableRawPointer}}
upv: UnsafePointer<Void>, // expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
umpi: UnsafeMutablePointer<Int>,
upi: UnsafePointer<Int>,
umps: UnsafeMutablePointer<String>,
ups: UnsafePointer<String>) {
let omrp: UnsafeMutableRawPointer? = mrp
let orp: UnsafeRawPointer? = rp
let oumpv: UnsafeMutablePointer<Void> = umpv // expected-warning {{UnsafeMutablePointer<Void> has been replaced by UnsafeMutableRawPointer}}
let oupv: UnsafePointer<Void>? = upv // expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
let oumpi: UnsafeMutablePointer<Int>? = umpi
let oupi: UnsafePointer<Int>? = upi
let oumps: UnsafeMutablePointer<String>? = umps
let oups: UnsafePointer<String>? = ups
_ = UnsafeMutableRawPointer(mrp)
_ = UnsafeMutableRawPointer(rp) // expected-error {{'init(_:)' has been renamed to 'init(mutating:)'}}
_ = UnsafeMutableRawPointer(umpv)
_ = UnsafeMutableRawPointer(upv) // expected-error {{'init(_:)' has been renamed to 'init(mutating:)'}}
_ = UnsafeMutableRawPointer(umpi)
_ = UnsafeMutableRawPointer(upi) // expected-error {{'init(_:)' has been renamed to 'init(mutating:)'}}
_ = UnsafeMutableRawPointer(umps)
_ = UnsafeMutableRawPointer(ups) // expected-error {{'init(_:)' has been renamed to 'init(mutating:)'}}
_ = UnsafeMutableRawPointer(omrp)
_ = UnsafeMutableRawPointer(orp) // expected-error {{'init(_:)' has been renamed to 'init(mutating:)'}}
_ = UnsafeMutableRawPointer(oumpv)
_ = UnsafeMutableRawPointer(oupv) // expected-error {{'init(_:)' has been renamed to 'init(mutating:)'}}
_ = UnsafeMutableRawPointer(oumpi)
_ = UnsafeMutableRawPointer(oupi) // expected-error {{'init(_:)' has been renamed to 'init(mutating:)'}}
_ = UnsafeMutableRawPointer(oumps)
_ = UnsafeMutableRawPointer(oups) // expected-error {{'init(_:)' has been renamed to 'init(mutating:)'}}
// These all correctly pass with no error.
_ = UnsafeRawPointer(mrp)
_ = UnsafeRawPointer(rp)
_ = UnsafeRawPointer(umpv)
_ = UnsafeRawPointer(upv)
_ = UnsafeRawPointer(umpi)
_ = UnsafeRawPointer(upi)
_ = UnsafeRawPointer(umps)
_ = UnsafeRawPointer(ups)
_ = UnsafeRawPointer(omrp)
_ = UnsafeRawPointer(orp)
_ = UnsafeRawPointer(oumpv)
_ = UnsafeRawPointer(oupv)
_ = UnsafeRawPointer(oumpi)
_ = UnsafeRawPointer(oupi)
_ = UnsafeRawPointer(oumps)
_ = UnsafeRawPointer(oups)
_ = UnsafePointer<Int>(upi)
_ = UnsafePointer<Int>(oumpi)
_ = UnsafePointer<Int>(oupi)
_ = UnsafeMutablePointer<Int>(umpi)
_ = UnsafeMutablePointer<Int>(oumpi)
_ = UnsafeMutablePointer<Void>(rp) // expected-error {{cannot convert value of type 'UnsafeRawPointer' to expected argument type 'UnsafeMutablePointer<Void>'}} expected-warning {{UnsafeMutablePointer<Void> has been replaced by UnsafeMutableRawPointer}}
_ = UnsafeMutablePointer<Void>(mrp) // expected-error {{cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'UnsafeMutablePointer<Void>'}} expected-warning {{UnsafeMutablePointer<Void> has been replaced by UnsafeMutableRawPointer}}
_ = UnsafeMutablePointer<Void>(umpv) // expected-warning {{UnsafeMutablePointer<Void> has been replaced by UnsafeMutableRawPointer}}
_ = UnsafeMutablePointer<Void>(umpi) // expected-warning {{UnsafeMutablePointer<Void> has been replaced by UnsafeMutableRawPointer}}
_ = UnsafeMutablePointer<Void>(umps) // expected-warning {{UnsafeMutablePointer<Void> has been replaced by UnsafeMutableRawPointer}}
_ = UnsafePointer<Void>(rp) // expected-error {{cannot convert value of type 'UnsafeRawPointer' to expected argument type 'UnsafePointer<Void>'}} expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
_ = UnsafePointer<Void>(mrp) // expected-error {{cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'UnsafePointer<Void>'}} expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
_ = UnsafePointer<Void>(umpv) // expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
_ = UnsafePointer<Void>(upv) // expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
_ = UnsafePointer<Void>(umpi) // expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
_ = UnsafePointer<Void>(upi) // expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
_ = UnsafePointer<Void>(umps) // expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
_ = UnsafePointer<Void>(ups) // expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
_ = UnsafeMutablePointer<Int>(rp) // expected-error {{cannot convert value of type 'UnsafeRawPointer' to expected argument type 'UnsafeMutablePointer<Int>'}}
_ = UnsafeMutablePointer<Int>(mrp) // expected-error {{cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'UnsafeMutablePointer<Int>'}}
_ = UnsafeMutablePointer<Int>(orp) // expected-error {{cannot convert value of type 'UnsafeRawPointer?' to expected argument type 'UnsafeMutablePointer<Int>'}}
_ = UnsafeMutablePointer<Int>(omrp) // expected-error {{cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'UnsafeMutablePointer<Int>'}}
_ = UnsafePointer<Int>(rp) // expected-error {{cannot convert value of type 'UnsafeRawPointer' to expected argument type 'UnsafePointer<Int>'}}
_ = UnsafePointer<Int>(mrp) // expected-error {{cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'UnsafePointer<Int>'}}
_ = UnsafePointer<Int>(orp) // expected-error {{cannot convert value of type 'UnsafeRawPointer' to expected argument type 'UnsafePointer<Int>'}}
_ = UnsafePointer<Int>(omrp) // expected-error {{cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'UnsafePointer<Int>'}}
_ = UnsafePointer<Int>(ups) // expected-error {{cannot convert value of type 'UnsafePointer<String>' to expected argument type 'UnsafePointer<Int>'}}
// expected-note@-1 {{arguments to generic parameter 'Pointee' ('String' and 'Int') are expected to be equal}}
_ = UnsafeMutablePointer<Int>(umps) // expected-error {{cannot convert value of type 'UnsafeMutablePointer<String>' to expected argument type 'UnsafeMutablePointer<Int>'}}
// expected-note@-1 {{arguments to generic parameter 'Pointee' ('String' and 'Int') are expected to be equal}}
_ = UnsafePointer<String>(upi) // expected-error {{cannot convert value of type 'UnsafePointer<Int>' to expected argument type 'UnsafePointer<String>'}}
// expected-note@-1 {{arguments to generic parameter 'Pointee' ('Int' and 'String') are expected to be equal}}
_ = UnsafeMutablePointer<String>(umpi) // expected-error {{cannot convert value of type 'UnsafeMutablePointer<Int>' to expected argument type 'UnsafeMutablePointer<String>'}}
// expected-note@-1 {{arguments to generic parameter 'Pointee' ('Int' and 'String') are expected to be equal}}
}
func unsafeRawBufferPointerConversions(
mrp: UnsafeMutableRawPointer,
rp: UnsafeRawPointer,
mrbp: UnsafeMutableRawBufferPointer,
rbp: UnsafeRawBufferPointer,
mbpi: UnsafeMutableBufferPointer<Int>,
bpi: UnsafeBufferPointer<Int>) {
let omrp: UnsafeMutableRawPointer? = mrp
let orp: UnsafeRawPointer? = rp
_ = UnsafeMutableRawBufferPointer(start: mrp, count: 1)
_ = UnsafeRawBufferPointer(start: mrp, count: 1)
_ = UnsafeMutableRawBufferPointer(start: rp, count: 1) // expected-error {{cannot convert value of type 'UnsafeRawPointer' to expected argument type 'UnsafeMutableRawPointer?'}}
_ = UnsafeRawBufferPointer(start: rp, count: 1)
_ = UnsafeMutableRawBufferPointer(mrbp)
_ = UnsafeRawBufferPointer(mrbp)
_ = UnsafeMutableRawBufferPointer(rbp) // expected-error {{missing argument label 'mutating:' in call}}
_ = UnsafeRawBufferPointer(rbp)
_ = UnsafeMutableRawBufferPointer(mbpi)
_ = UnsafeRawBufferPointer(mbpi)
_ = UnsafeMutableRawBufferPointer(bpi) // expected-error {{cannot convert value of type 'UnsafeBufferPointer<Int>' to expected argument type 'UnsafeMutableRawBufferPointer'}}
_ = UnsafeRawBufferPointer(bpi)
_ = UnsafeMutableRawBufferPointer(start: omrp, count: 1)
_ = UnsafeRawBufferPointer(start: omrp, count: 1)
_ = UnsafeMutableRawBufferPointer(start: orp, count: 1) // expected-error {{cannot convert value of type 'UnsafeRawPointer?' to expected argument type 'UnsafeMutableRawPointer?'}}
_ = UnsafeRawBufferPointer(start: orp, count: 1)
}
// https://github.com/apple/swift/issues/52224
struct S_52224 {
func foo(_: UnsafePointer<CChar>) {}
func foo(_: UnsafePointer<UInt8>) {}
func ambiguityTest(buf: UnsafeMutablePointer<CChar>) {
foo(UnsafePointer(buf)) // this call should be unambiguous
}
}
// Test that we get a custom diagnostic for an ephemeral conversion to non-ephemeral param for an Unsafe[Mutable][Raw][Buffer]Pointer init.
func unsafePointerInitEphemeralConversions() {
class C {}
var foo = 0
var str = ""
var arr = [0]
var optionalArr: [Int]? = [0]
var c: C?
_ = UnsafePointer(&foo) // expected-error {{initialization of 'UnsafePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafePointer<Int>' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use 'withUnsafePointer' in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafePointer(&foo + 1) // expected-error {{cannot use inout expression here; argument #1 must be a pointer that outlives the call to '+'}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafePointer<Int>' produces a pointer valid only for the duration of the call to '+'}}
// expected-note@-2 {{use 'withUnsafePointer' in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafePointer.init(&foo) // expected-error {{initialization of 'UnsafePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafePointer<Int>' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use 'withUnsafePointer' in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafePointer<Int8>("") // expected-error {{initialization of 'UnsafePointer<Int8>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'String' to 'UnsafePointer<Int8>' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withCString' method on String in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafePointer<Int8>.init("") // expected-error {{initialization of 'UnsafePointer<Int8>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'String' to 'UnsafePointer<Int8>' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withCString' method on String in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafePointer<Int8>(str) // expected-error {{initialization of 'UnsafePointer<Int8>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'String' to 'UnsafePointer<Int8>' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withCString' method on String in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafePointer([0]) // expected-error {{initialization of 'UnsafePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafePointer<Int>' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withUnsafeBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafePointer(arr) // expected-error {{initialization of 'UnsafePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafePointer<Int>' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withUnsafeBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafePointer(&arr) // expected-error {{initialization of 'UnsafePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafePointer<Int>' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withUnsafeBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafePointer(optionalArr) // expected-error {{initialization of 'UnsafePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]?' to 'UnsafePointer<Int>?' produces a pointer valid only for the duration of the call to 'init(_:)'}}
_ = UnsafeMutablePointer(&foo) // expected-error {{initialization of 'UnsafeMutablePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafeMutablePointer<Int>' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use 'withUnsafeMutablePointer' in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeMutablePointer(&arr) // expected-error {{initialization of 'UnsafeMutablePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeMutablePointer<Int>' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withUnsafeMutableBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeMutablePointer(&arr + 2) // expected-error {{cannot use inout expression here; argument #1 must be a pointer that outlives the call to '+'}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeMutablePointer<Int>' produces a pointer valid only for the duration of the call to '+'}}
// expected-note@-2 {{use the 'withUnsafeMutableBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeMutablePointer(mutating: &foo) // expected-error {{initialization of 'UnsafeMutablePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafePointer<Int>' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
// expected-note@-2 {{use 'withUnsafePointer' in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeMutablePointer<Int8>(mutating: "") // expected-error {{initialization of 'UnsafeMutablePointer<Int8>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'String' to 'UnsafePointer<Int8>' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
// expected-note@-2 {{use the 'withCString' method on String in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeMutablePointer<Int8>(mutating: str) // expected-error {{initialization of 'UnsafeMutablePointer<Int8>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'String' to 'UnsafePointer<Int8>' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
// expected-note@-2 {{use the 'withCString' method on String in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeMutablePointer(mutating: [0]) // expected-error {{initialization of 'UnsafeMutablePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafePointer<Int>' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
// expected-note@-2 {{use the 'withUnsafeBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeMutablePointer(mutating: arr) // expected-error {{initialization of 'UnsafeMutablePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafePointer<Int>' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
// expected-note@-2 {{use the 'withUnsafeBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeMutablePointer(mutating: &arr) // expected-error {{initialization of 'UnsafeMutablePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafePointer<Int>' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
// expected-note@-2 {{use the 'withUnsafeBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeMutablePointer(mutating: optionalArr) // expected-error {{initialization of 'UnsafeMutablePointer<Int>' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]?' to 'UnsafePointer<Int>?' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
_ = UnsafeRawPointer(&foo) // expected-error {{initialization of 'UnsafeRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafeMutableRawPointer' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use 'withUnsafeMutableBytes' in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeRawPointer(str) // expected-error {{initialization of 'UnsafeRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'String' to 'UnsafeRawPointer' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withCString' method on String in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeRawPointer(arr) // expected-error {{initialization of 'UnsafeRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeRawPointer' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withUnsafeBytes' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeRawPointer(&arr) // expected-error {{initialization of 'UnsafeRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeMutableRawPointer' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withUnsafeMutableBytes' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeRawPointer(optionalArr) // expected-error {{initialization of 'UnsafeRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]?' to 'UnsafeRawPointer?' produces a pointer valid only for the duration of the call to 'init(_:)'}}
_ = UnsafeMutableRawPointer(&foo) // expected-error {{initialization of 'UnsafeMutableRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafeMutableRawPointer' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use 'withUnsafeMutableBytes' in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeMutableRawPointer(&arr) // expected-error {{initialization of 'UnsafeMutableRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeMutableRawPointer' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withUnsafeMutableBytes' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeMutableRawPointer(mutating: &foo) // expected-error {{initialization of 'UnsafeMutableRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafeRawPointer' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
// expected-note@-2 {{use 'withUnsafeBytes' in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeMutableRawPointer(mutating: str) // expected-error {{initialization of 'UnsafeMutableRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'String' to 'UnsafeRawPointer' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
// expected-note@-2 {{use the 'withCString' method on String in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeMutableRawPointer(mutating: arr) // expected-error {{initialization of 'UnsafeMutableRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeRawPointer' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
// expected-note@-2 {{use the 'withUnsafeBytes' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeMutableRawPointer(mutating: &arr) // expected-error {{initialization of 'UnsafeMutableRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeRawPointer' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
// expected-note@-2 {{use the 'withUnsafeBytes' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeMutableRawPointer(mutating: optionalArr) // expected-error {{initialization of 'UnsafeMutableRawPointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]?' to 'UnsafeRawPointer?' produces a pointer valid only for the duration of the call to 'init(mutating:)}}
_ = UnsafeBufferPointer(start: &foo, count: 0) // expected-error {{initialization of 'UnsafeBufferPointer<Int>' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafePointer<Int>?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use 'withUnsafePointer' in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeBufferPointer.init(start: &foo, count: 0) // expected-error {{initialization of 'UnsafeBufferPointer<Int>' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafePointer<Int>?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use 'withUnsafePointer' in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeBufferPointer<Int8>(start: str, count: 0) // expected-error {{initialization of 'UnsafeBufferPointer<Int8>' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from 'String' to 'UnsafePointer<Int8>?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use the 'withCString' method on String in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeBufferPointer<Int8>.init(start: str, count: 0) // expected-error {{initialization of 'UnsafeBufferPointer<Int8>' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from 'String' to 'UnsafePointer<Int8>?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use the 'withCString' method on String in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeBufferPointer(start: arr, count: 0) // expected-error {{initialization of 'UnsafeBufferPointer<Int>' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafePointer<Int>?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use the 'withUnsafeBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeBufferPointer(start: &arr, count: 0) // expected-error {{initialization of 'UnsafeBufferPointer<Int>' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafePointer<Int>?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use the 'withUnsafeBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeBufferPointer(start: optionalArr, count: 0) // expected-error {{initialization of 'UnsafeBufferPointer<Int>' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]?' to 'UnsafePointer<Int>?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
_ = UnsafeMutableBufferPointer(start: &foo, count: 0) // expected-error {{initialization of 'UnsafeMutableBufferPointer<Int>' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafeMutablePointer<Int>?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use 'withUnsafeMutablePointer' in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeMutableBufferPointer(start: &arr, count: 0) // expected-error {{initialization of 'UnsafeMutableBufferPointer<Int>' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeMutablePointer<Int>?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use the 'withUnsafeMutableBufferPointer' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeRawBufferPointer(start: &foo, count: 0) // expected-error {{initialization of 'UnsafeRawBufferPointer' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafeRawPointer?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use 'withUnsafeBytes' in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeRawBufferPointer(start: str, count: 0) // expected-error {{initialization of 'UnsafeRawBufferPointer' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from 'String' to 'UnsafeRawPointer?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use the 'withCString' method on String in order to explicitly convert argument to pointer valid for a defined scope}}
_ = UnsafeRawBufferPointer(start: arr, count: 0) // expected-error {{initialization of 'UnsafeRawBufferPointer' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeRawPointer?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use the 'withUnsafeBytes' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeRawBufferPointer(start: &arr, count: 0) // expected-error {{initialization of 'UnsafeRawBufferPointer' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeRawPointer?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use the 'withUnsafeBytes' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeRawBufferPointer(start: optionalArr, count: 0) // expected-error {{initialization of 'UnsafeRawBufferPointer' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]?' to 'UnsafeRawPointer?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
_ = UnsafeMutableRawBufferPointer(start: &foo, count: 0) // expected-error {{initialization of 'UnsafeMutableRawBufferPointer' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from 'Int' to 'UnsafeMutableRawPointer?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use 'withUnsafeMutableBytes' in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = UnsafeMutableRawBufferPointer(start: &arr, count: 0) // expected-error {{initialization of 'UnsafeMutableRawBufferPointer' results in a dangling buffer pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeMutableRawPointer?' produces a pointer valid only for the duration of the call to 'init(start:count:)'}}
// expected-note@-2 {{use the 'withUnsafeMutableBytes' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
// FIXME: This is currently ambiguous.
_ = OpaquePointer(&foo) // expected-error {{no exact matches in call to initializer}}
// FIXME: This is currently ambiguous.
_ = OpaquePointer(&arr) // expected-error {{no exact matches in call to initializer}}
_ = OpaquePointer(arr) // expected-error {{initialization of 'OpaquePointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from '[Int]' to 'UnsafeRawPointer' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withUnsafeBytes' method on Array in order to explicitly convert argument to buffer pointer valid for a defined scope}}
_ = OpaquePointer(str) // expected-error {{initialization of 'OpaquePointer' results in a dangling pointer}}
// expected-note@-1 {{implicit argument conversion from 'String' to 'UnsafeRawPointer' produces a pointer valid only for the duration of the call to 'init(_:)'}}
// expected-note@-2 {{use the 'withCString' method on String in order to explicitly convert argument to pointer valid for a defined scope}}
}
var global = 0
// Test that we allow non-ephemeral conversions, such as inout-to-pointer for globals.
func unsafePointerInitNonEphemeralConversions() {
_ = UnsafePointer(&global)
_ = UnsafeMutablePointer(&global)
_ = UnsafeRawPointer(&global)
_ = UnsafeMutableRawPointer(&global)
_ = UnsafeBufferPointer(start: &global, count: 0)
_ = UnsafeMutableBufferPointer(start: &global, count: 0)
_ = UnsafeRawBufferPointer(start: &global, count: 0)
_ = UnsafeMutableRawBufferPointer(start: &global, count: 0)
// FIXME: This is currently ambiguous.
_ = OpaquePointer(&global) // expected-error {{ambiguous use of 'init(_:)'}}
}
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