[temporary] disable spans over inline elements

Author: glessard

stdlib/public/core/CollectionOfOne.swift

@@ -168,6 +168,7 @@ extension CollectionOfOne {
     get {
       let pointer = unsafe UnsafePointer<Element>(Builtin.addressOfBorrow(self))
       let span = unsafe Span(_unsafeStart: pointer, count: 1)
+      fatalError("Span over CollectionOfOne is not supported yet.")
       return unsafe _overrideLifetime(span, borrowing: self)
     }
   }

stdlib/public/core/InlineArray.swift

@@ -456,6 +456,7 @@ extension InlineArray where Element: ~Copyable {
     borrowing get {
       let pointer = _address
       let span = unsafe Span(_unsafeStart: pointer, count: count)
+      fatalError("Span over InlineArray is not supported yet.")
       return unsafe _overrideLifetime(span, borrowing: self)
     }
   }

test/stdlib/Span/InlineSpanProperties.swift

@@ -23,6 +23,7 @@ var suite = TestSuite("Span properties backed by inline storage")
 defer { runAllTests() }
 
 suite.test("CollectionOfOne.span property")
+.skip(.wasiAny(reason: "Trap tests aren't supported on WASI."))
 .skip(.custom(
   { if #available(SwiftStdlib 6.2, *) { false } else { true } },
   reason: "Requires Swift 6.2's standard library"
@@ -34,13 +35,15 @@ suite.test("CollectionOfOne.span property")
   let u = Array(s.utf8)
   let c = CollectionOfOne(consume s)
   s = ""
+  expectCrashLater()
   let span = c.span
   expectEqual(span.count, 1)
   let v = Array(span[0].utf8)
   expectEqual(u, v)
 }
 
 suite.test("CollectionOfOne.span property (simple)")
+.skip(.wasiAny(reason: "Trap tests aren't supported on WASI."))
 .skip(.custom(
   { if #available(SwiftStdlib 6.2, *) { false } else { true } },
   reason: "Requires Swift 6.2's standard library"
@@ -49,6 +52,7 @@ suite.test("CollectionOfOne.span property (simple)")
   guard #available(SwiftStdlib 6.2, *) else { return }
 
   let c = CollectionOfOne(Int.random(in: 0..<100000))
+  expectCrashLater()
   let span = c.span
   expectEqual(span.count, c.indices.count)
   expectEqual(span[0], c[0])
@@ -59,6 +63,7 @@ struct Padded: BitwiseCopyable {
 }
 
 suite.test("CollectionOfOne.span stride test")
+.skip(.wasiAny(reason: "Trap tests aren't supported on WASI."))
 .skip(.custom(
   { if #available(SwiftStdlib 6.2, *) { false } else { true } },
   reason: "Requires Swift 6.2's standard library"
@@ -67,12 +72,14 @@ suite.test("CollectionOfOne.span stride test")
   guard #available(SwiftStdlib 6.2, *) else { return }
 
   let c = CollectionOfOne(Padded(storage: (-1, 1)))
+  expectCrashLater()
   let span = c.span
   let bytes = span.bytes
   expectEqual(bytes.byteCount, MemoryLayout.size(ofValue: c))
 }
 
 suite.test("InlineArray.span property")
+.skip(.wasiAny(reason: "Trap tests aren't supported on WASI."))
 .skip(.custom(
   { if #available(SwiftStdlib 6.2, *) { false } else { true } },
   reason: "Requires Swift 6.2's standard library"
@@ -82,6 +89,7 @@ suite.test("InlineArray.span property")
 
   var s = InlineArray<5, Int>(repeating: 0)
   s[3] = .random(in: 0..<1000)
+  expectCrashLater()
   let span = s.span
   expectEqual(span.count, s.count)
   for i in s.indices {
@@ -90,6 +98,7 @@ suite.test("InlineArray.span property")
 }
 
 suite.test("InlineArray.span property (String)")
+.skip(.wasiAny(reason: "Trap tests aren't supported on WASI."))
 .skip(.custom(
   { if #available(SwiftStdlib 6.2, *) { false } else { true } },
   reason: "Requires Swift 6.2's standard library"
@@ -99,6 +108,7 @@ suite.test("InlineArray.span property (String)")
 
   var s = InlineArray<5, String>(repeating: "0")
   s[3] = String(Int.random(in: 0..<1000))
+  expectCrashLater()
   let span = s.span
   expectEqual(span.count, s.count)
   for i in s.indices {