Merge pull request #2379 from rudkx/unreachable

Author: swift-ci

stdlib/public/core/Algorithm.swift

@@ -128,14 +128,14 @@ public struct EnumerateSequence<Base : Sequence> {}
 extension EnumeratedIterator {
   @available(*, unavailable, message: "use the 'enumerated()' method on the sequence")
   public init(_ base: Base) {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 
 extension EnumeratedSequence {
   @available(*, unavailable, message: "use the 'enumerated()' method on the sequence")
   public init(_ base: Base) {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 

stdlib/public/core/Arrays.swift.gyb

@@ -2057,19 +2057,19 @@ extension ContiguousArray {
 extension ${Self} {
   @available(*, unavailable, message: "Please use init(repeating:count:) instead")
   init(count: Int, repeatedValue: Element) {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 
   @available(*, unavailable, renamed: "remove")
   public mutating func removeAtIndex(_ index: Int) -> Element {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 
   @available(*, unavailable, renamed: "replaceSubrange")
   public mutating func replaceRange<
     C : Collection where C.Iterator.Element == _Buffer.Element
   >(_ subRange: Range<Int>, with newElements: C) {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 
   @available(*, unavailable, renamed: "append(contentsOf:)")
@@ -2078,7 +2078,7 @@ extension ${Self} {
     where
     S.Iterator.Element == Element
   >(_ newElements: S) {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 %end

stdlib/public/core/BridgeObjectiveC.swift

@@ -530,12 +530,12 @@ extension AutoreleasingUnsafeMutablePointer {
 
   @available(*, unavailable, renamed: "pointee")
   public var memory: Pointee {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 
   @available(*, unavailable, message: "Removed in Swift 3. Please use nil literal instead.")
   public init() {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 #endif

stdlib/public/core/Builtin.swift

@@ -204,7 +204,7 @@ public func unsafeAddress(of object: AnyObject) -> UnsafePointer<Void> {
 
 @available(*, unavailable, renamed: "unsafeAddress(of:)")
 public func unsafeAddressOf(_ object: AnyObject) -> UnsafePointer<Void> {
-  fatalError("unavailable function can't be called")
+  Builtin.unreachable()
 }
 
 /// Converts a reference of type `T` to a reference of type `U` after
@@ -594,5 +594,5 @@ func _isOptional<T>(_ type: T.Type) -> Bool {
 
 @available(*, unavailable, message: "Removed in Swift 3. Please use Optional.unsafelyUnwrapped instead.")
 public func unsafeUnwrap<T>(_ nonEmpty: T?) -> T {
-  fatalError("unavailable function can't be called")
+  Builtin.unreachable()
 }

stdlib/public/core/CString.swift

@@ -94,14 +94,14 @@ extension String {
   @available(*, unavailable, message: "Please use String.init?(validatingUTF8:) instead. Note that it no longer accepts NULL as a valid input. Also consider using String(cString:), that will attempt to repair ill-formed code units.")
   @warn_unused_result
   public static func fromCString(_ cs: UnsafePointer<CChar>) -> String? {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 
   @available(*, unavailable, message: "Please use String.init(cString:) instead. Note that it no longer accepts NULL as a valid input. See also String.decodeCString if you need more control.")
   @warn_unused_result
   public static func fromCStringRepairingIllFormedUTF8(
     _ cs: UnsafePointer<CChar>
   ) -> (String?, hadError: Bool) {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }

stdlib/public/core/Collection.swift

@@ -1468,12 +1468,12 @@ extension Collection {
 
   @available(*, unavailable, renamed: "makeIterator")
   public func generate() -> Iterator {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 
   @available(*, unavailable, message: "Removed in Swift 3. Please use underestimatedCount property.")
   public func underestimateCount() -> Int {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 
   @available(*, unavailable, message: "Please use split(maxSplits:omittingEmptySubsequences:isSeparator:) instead")
@@ -1482,7 +1482,7 @@ extension Collection {
     allowEmptySlices: Bool = false,
     isSeparator: @noescape (Iterator.Element) throws -> Bool
   ) rethrows -> [SubSequence] {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 
@@ -1493,7 +1493,7 @@ extension Collection where Iterator.Element : Equatable {
     maxSplit: Int = Int.max,
     allowEmptySlices: Bool = false
   ) -> [SubSequence] {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 

stdlib/public/core/CollectionAlgorithms.swift.gyb

@@ -642,7 +642,7 @@ extension MutableCollection where Self : RandomAccessCollection {
     _ range: Range<Index>,
     isOrderedBefore: (${IElement}, ${IElement}) -> Bool
   ) -> Index {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 
@@ -651,7 +651,7 @@ extension MutableCollection
 
   @available(*, unavailable, message: "slice the collection using the range, and call partition()")
   public mutating func partition(_ range: Range<Index>) -> Index {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 
@@ -662,7 +662,7 @@ extension MutableCollection
 
   @available(*, unavailable, renamed: "sort")
   public mutating func sortInPlace() {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 
@@ -671,15 +671,15 @@ extension MutableCollection where Self : RandomAccessCollection {
   public mutating func sortInPlace(
     _ isOrderedBefore: @noescape (Iterator.Element, Iterator.Element) -> Bool
   ) {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 
 extension Collection where ${IElement} : Equatable {
   @available(*, unavailable, renamed: "index(of:)")
   @warn_unused_result
   public func indexOf(_ element: ${IElement}) -> Index? {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 
@@ -689,6 +689,6 @@ extension Collection {
   public func indexOf(
     _ predicate: @noescape (${IElement}) throws -> Bool
   ) rethrows -> Index? {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }

stdlib/public/core/CollectionOfOne.swift

@@ -106,6 +106,6 @@ public struct GeneratorOfOne<Element> {}
 extension IteratorOverOne {
   @available(*, unavailable, renamed: "makeIterator")
   public func generate() -> IteratorOverOne<Element> {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }

stdlib/public/core/EmptyCollection.swift

@@ -162,6 +162,6 @@ public struct EmptyGenerator<Element> {}
 extension EmptyIterator {
   @available(*, unavailable, renamed: "makeIterator")
   public func generate() -> EmptyIterator<Element> {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }

stdlib/public/core/ExistentialCollection.swift.gyb

@@ -1106,7 +1106,7 @@ public struct AnyGenerator<Element> {}
 extension AnyIterator {
   @available(*, unavailable, renamed: "makeIterator")
   public func generate() -> AnyIterator<Element> {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 
@@ -1115,7 +1115,7 @@ extension Any${Kind} {
 
   @available(*, unavailable, message: "Please use underestimatedCount property instead.")
   public var underestimateCount: Int {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }
 %end
@@ -1126,6 +1126,6 @@ public typealias AnyCollectionType = AnyCollectionProtocol
 extension AnyCollectionProtocol {
   @available(*, unavailable, renamed: "makeIterator")
   public func generate() -> AnyIterator<Iterator.Element> {
-    fatalError("unavailable function can't be called")
+    Builtin.unreachable()
   }
 }