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// RUN: %target-swiftc_driver -O -Rpass-missed=sil-assembly-vision-remark-gen -Xfrontend -enable-copy-propagation=requested-passes-only -Xfrontend -enable-lexical-lifetimes=false -Xllvm -sil-disable-pass=FunctionSignatureOpts -emit-sil %s -o /dev/null -Xfrontend -verify
// REQUIRES: optimized_stdlib
// REQUIRES: swift_stdlib_no_asserts
///////////////////
// Generic Casts //
///////////////////
public func forcedCast<NS, T>(_ ns: NS) -> T {
// Make sure the colon info is right so that the arrow is under the a.
return ns as! T // expected-remark @:13 {{unconditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-3:33 {{of 'ns'}}
}
public func forcedCast2<NS, T>(_ ns: NS) -> T {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow.
let x = ns
return x as! T // expected-remark @:12 {{unconditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-7:34 {{of 'ns'}}
}
public func forcedCast3<NS, T>(_ ns: NS) -> T {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow.
var x = ns // expected-warning {{variable 'x' was never mutated}}
return x as! T // expected-remark @:12 {{unconditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-7:34 {{of 'ns'}}
}
public func forcedCast4<NS, T>(_ ns: NS, _ ns2: NS) -> T {
// Make sure the colon info is right so that the arrow is under the a.
var x = ns
x = ns2
return x as! T // expected-remark @:12 {{unconditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-5:44 {{of 'ns2'}}
// expected-note @-4:7 {{of 'x'}}
}
public func condCast<NS, T>(_ ns: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
return ns as? T // expected-remark @:13 {{conditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-3:31 {{of 'ns'}}
}
public func condCast2<NS, T>(_ ns: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow.
let x = ns
return x as? T // expected-remark @:12 {{conditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-7:32 {{of 'ns'}}
}
public func condCast3<NS, T>(_ ns: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow.
var x = ns // expected-warning {{variable 'x' was never mutated}}
return x as? T // expected-remark @:12 {{conditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-7:32 {{of 'ns'}}
}
public func condCast4<NS, T>(_ ns: NS, _ ns2: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
var x = ns
x = ns2
return x as? T // expected-remark @:12 {{conditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-5:42 {{of 'ns2'}}
// expected-note @-4:7 {{of 'x'}}
}
public func condCast5<NS, T>(_ ns: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we lose that x was assigned.
if let x = ns as? T { // expected-remark @:17 {{conditional runtime cast of value with type 'NS' to 'T'}}
return x // expected-note @-5:32 {{of 'ns'}}
}
return nil
}
public func condCast6<NS, T>(_ ns: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we lose that x was assigned.
guard let x = ns as? T else { // expected-remark @:20 {{conditional runtime cast of value with type 'NS' to 'T'}}
return nil // expected-note @-5:32 {{of 'ns'}}
}
return x
}
//////////////////////////////////
// Any Object Constrained Casts //
//////////////////////////////////
public func forcedCast<NS: AnyObject, T: AnyObject>(_ ns: NS) -> T {
// Make sure the colon info is right so that the arrow is under the a.
//
// TODO: We should also note the retain as being on 'ns'.
return ns as! T // expected-remark @:13 {{unconditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-5:55 {{of 'ns'}}
// expected-remark @-2 {{retain of type 'NS'}}
}
public func forcedCast2<NS: AnyObject, T: AnyObject>(_ ns: NS) -> T {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow. We should also note the retain as being on 'ns'
let x = ns
return x as! T // expected-remark @:12 {{unconditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-7:56 {{of 'ns'}}
// expected-remark @-2 {{retain of type 'NS'}}
}
public func forcedCast3<NS: AnyObject, T: AnyObject>(_ ns: NS) -> T {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow.
var x = ns // expected-warning {{variable 'x' was never mutated}}
return x as! T // expected-remark @:12 {{unconditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-7:56 {{of 'ns'}}
// expected-remark @-2 {{retain of type 'NS'}}
}
// Interestingly today, with AnyObject codegen, we do not lose the assignment to
// x and say the cast is on ns2!
public func forcedCast4<NS: AnyObject, T: AnyObject>(_ ns: NS, _ ns2: NS) -> T {
// Make sure the colon info is right so that the arrow is under the a.
var x = ns
x = ns2
return x as! T // expected-remark @:12 {{unconditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-5:66 {{of 'ns2'}}
// expected-remark @-2 {{retain of type 'NS'}}
}
public func condCast<NS: AnyObject, T: AnyObject>(_ ns: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
return ns as? T // expected-remark @:13 {{conditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-3:53 {{of 'ns'}}
// expected-remark @-2 {{retain of type 'NS'}}
}
public func condCast2<NS: AnyObject, T: AnyObject>(_ ns: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow.
let x = ns
return x as? T // expected-remark @:12 {{conditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-7:54 {{of 'ns'}}
// expected-remark @-2 {{retain of type 'NS'}}
}
public func condCast3<NS: AnyObject, T: AnyObject>(_ ns: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow.
var x = ns // expected-warning {{variable 'x' was never mutated}}
return x as? T // expected-remark @:12 {{conditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-7:54 {{of 'ns'}}
// expected-remark @-2 {{retain of type 'NS'}}
}
public func condCast4<NS: AnyObject, T: AnyObject>(_ ns: NS, _ ns2: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
var x = ns
x = ns2
return x as? T // expected-remark @:12 {{conditional runtime cast of value with type 'NS' to 'T'}}
// expected-note @-5:64 {{of 'ns2'}}
// expected-remark @-2 {{retain of type 'NS'}}
}
public func condCast5<NS: AnyObject, T: AnyObject>(_ ns: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we lose that x was assigned.
if let x = ns as? T { // expected-remark @:17 {{conditional runtime cast of value with type 'NS' to 'T'}}
return x // expected-note @-5:54 {{of 'ns'}}
} // expected-remark @-2 {{retain of type 'NS'}}
return nil
}
public func condCast6<NS: AnyObject, T: AnyObject>(_ ns: NS) -> T? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we lose that x was assigned.
guard let x = ns as? T else { // expected-remark @:20 {{conditional runtime cast of value with type 'NS' to 'T'}}
return nil // expected-note @-5:54 {{of 'ns'}}
} // expected-remark @-2 {{retain of type 'NS'}}
return x
}
/////////////////////////
// Existential Casting //
/////////////////////////
public protocol Existential1 {
}
public protocol Existential2 {
}
public func forcedCast(_ ns: Existential1) -> Existential2 {
// Make sure the colon info is right so that the arrow is under the a.
//
// TODO: We should also note the retain as being on 'ns'.
return ns as! Existential2 // expected-remark @:13 {{unconditional runtime cast of value with type 'any Existential1' to 'any Existential2'}}
// expected-note @-5:26 {{of 'ns'}}
}
public func forcedCast2(_ ns: Existential1) -> Existential2 {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow. We should also note the retain as being on 'ns'
let x = ns
return x as! Existential2 // expected-remark @:12 {{unconditional runtime cast of value with type 'any Existential1' to 'any Existential2'}}
// expected-note @-7:27 {{of 'ns'}}
}
public func forcedCast3(_ ns: Existential1) -> Existential2 {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow.
var x = ns // expected-warning {{variable 'x' was never mutated}}
return x as! Existential2 // expected-remark @:12 {{unconditional runtime cast of value with type 'any Existential1' to 'any Existential2'}}
// expected-note @-7:27 {{of 'ns'}}
}
// TODO: We should be able to identify NS2 in this case with opaque values.
public func forcedCast4(_ ns: Existential1, _ ns2: Existential1) -> Existential2 {
// Make sure the colon info is right so that the arrow is under the a.
var x = ns
x = ns2
return x as! Existential2 // expected-remark @:12 {{unconditional runtime cast of value with type 'any Existential1' to 'any Existential2'}}
// expected-note @-5:47 {{of 'ns2'}}
// expected-note @-4:7 {{of 'x'}}
}
public func condCast(_ ns: Existential1) -> Existential2? {
// Make sure the colon info is right so that the arrow is under the a.
return ns as? Existential2 // expected-remark @:13 {{conditional runtime cast of value with type 'any Existential1' to 'any Existential2'}}
// expected-note @-3:24 {{of 'ns'}}
}
public func condCast2(_ ns: Existential1) -> Existential2? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow.
let x = ns
return x as? Existential2 // expected-remark @:12 {{conditional runtime cast of value with type 'any Existential1' to 'any Existential2'}}
// expected-note @-7:25 {{of 'ns'}}
}
public func condCast3(_ ns: Existential1) -> Existential2? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we seem to completely eliminate 'x' here in the debug info. TODO:
// Maybe we can recover this info somehow.
var x = ns // expected-warning {{variable 'x' was never mutated}}
return x as? Existential2 // expected-remark @:12 {{conditional runtime cast of value with type 'any Existential1' to 'any Existential2'}}
// expected-note @-7:25 {{of 'ns'}}
}
// TODO: We should be able to identify NS2 here!
public func condCast4(_ ns: Existential1, _ ns2: Existential1) -> Existential2? {
// Make sure the colon info is right so that the arrow is under the a.
var x = ns
x = ns2
return x as? Existential2 // expected-remark @:12 {{conditional runtime cast of value with type 'any Existential1' to 'any Existential2'}}
// expected-note @-5:45 {{of 'ns2'}}
// expected-note @-4:7 {{of 'x'}}
}
public func condCast5(_ ns: Existential1) -> Existential2? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we lose that x was assigned.
if let x = ns as? Existential2 { // expected-remark @:17 {{conditional runtime cast of value with type 'any Existential1' to 'any Existential2'}}
return x // expected-note @-5:25 {{of 'ns'}}
}
return nil
}
public func condCast6(_ ns: Existential1) -> Existential2? {
// Make sure the colon info is right so that the arrow is under the a.
//
// Today, we lose that x was assigned.
guard let x = ns as? Existential2 else { // expected-remark @:20 {{conditional runtime cast of value with type 'any Existential1' to 'any Existential2'}}
return nil // expected-note @-5:25 {{of 'ns'}}
}
return x
}
|
