Merge pull request #71802 from tshortli/typed-throws-in-inlinable-code

stdlib: Avoid condfails resulting from typed throws adoption

Author: tshortli

stdlib/public/core/ArrayCast.swift

@@ -49,7 +49,11 @@ public func _arrayForceCast<SourceElement, TargetElement>(
     return Array(_immutableCocoaArray: source._buffer._asCocoaArray())
   }
 #endif
+#if $TypedThrows
   return source.map { $0 as! TargetElement }
+#else
+  return try! source.__rethrows_map { $0 as! TargetElement }
+#endif
 }
 
 /// Called by the casting machinery.

stdlib/public/core/ExistentialCollection.swift

@@ -526,7 +526,11 @@ internal final class _SequenceBox<S: Sequence>: _AnySequenceBox<S.Element> {
   internal override func _map<T>(
     _ transform: (Element) throws -> T
   ) throws -> [T] {
+#if $TypedThrows
     try _base.map(transform)
+#else
+    try _base.__rethrows_map(transform)
+#endif
   }
   @inlinable
   internal override func _filter(
@@ -619,7 +623,11 @@ internal final class _CollectionBox<S: Collection>: _AnyCollectionBox<S.Element>
   internal override func _map<T>(
     _ transform: (Element) throws -> T
   ) throws -> [T] {
+#if $TypedThrows
     try _base.map(transform)
+#else
+    try _base.__rethrows_map(transform)
+#endif
   }
   @inlinable
   internal override func _filter(
@@ -814,7 +822,11 @@ internal final class _BidirectionalCollectionBox<S: BidirectionalCollection>
   internal override func _map<T>(
     _ transform: (Element) throws -> T
   ) throws -> [T] {
+#if $TypedThrows
     try _base.map(transform)
+#else
+    try _base.__rethrows_map(transform)
+#endif
   }
   @inlinable
   internal override func _filter(
@@ -1027,7 +1039,11 @@ internal final class _RandomAccessCollectionBox<S: RandomAccessCollection>
   internal override func _map<T>(
     _ transform: (Element) throws -> T
   ) throws -> [T] {
+#if $TypedThrows
     try _base.map(transform)
+#else
+    try _base.__rethrows_map(transform)
+#endif
   }
   @inlinable
   internal override func _filter(

stdlib/public/core/UnsafeRawPointer.swift

@@ -1332,6 +1332,7 @@ public struct UnsafeMutableRawPointer: _Pointer {
   ) {
     _debugPrecondition(_isPOD(T.self))
 
+#if $TypedThrows
     withUnsafePointer(to: value) { source in
       // FIXME: to be replaced by _memcpy when conversions are implemented.
       Builtin.int_memcpy_RawPointer_RawPointer_Int64(
@@ -1341,6 +1342,17 @@ public struct UnsafeMutableRawPointer: _Pointer {
         /*volatile:*/ false._value
       )
     }
+#else
+    try! __abi_withUnsafePointer(to: value) { source in
+      // FIXME: to be replaced by _memcpy when conversions are implemented.
+      Builtin.int_memcpy_RawPointer_RawPointer_Int64(
+        (self + offset)._rawValue,
+        source._rawValue,
+        UInt64(MemoryLayout<T>.size)._value,
+        /*volatile:*/ false._value
+      )
+    }
+#endif
   }
 
   // This unavailable implementation uses the expected mangled name