Remove conditional lazy conformance from Chain2

apple · Oct 23, 2020 · 4c89606 · 4c89606
1 parent 268452f
commit 4c89606
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Showing 3 changed files with 1 addition and 7 deletions.
diff --git a/Guides/Chain.md b/Guides/Chain.md
@@ -31,8 +31,7 @@ public func chain<S1, S2>(_ s1: S1, _ s2: S2) -> Chain2<S1, S2>
 
 The resulting `Chain2` type is a sequence, with conditional conformance to
 `Collection`, `BidirectionalCollection`, and `RandomAccessCollection` when both
-the first and second arguments conform. `Chain2` also conforms to
-`LazySequenceProtocol` when the first argument conforms.
+the first and second arguments conform.
 
 ### Naming
 

diff --git a/Sources/Algorithms/Chain.swift b/Sources/Algorithms/Chain.swift
@@ -272,7 +272,6 @@ extension Chain2: BidirectionalCollection
 
 extension Chain2: RandomAccessCollection
   where Base1: RandomAccessCollection, Base2: RandomAccessCollection {}
-extension Chain2: LazySequenceProtocol where Base1: LazySequenceProtocol {}
 
 extension Chain2: Equatable where Base1: Equatable, Base2: Equatable {}
 extension Chain2: Hashable where Base1: Hashable, Base2: Hashable {}

diff --git a/Tests/SwiftAlgorithmsTests/ChainTests.swift b/Tests/SwiftAlgorithmsTests/ChainTests.swift
@@ -136,8 +136,4 @@ final class ChainTests: XCTestCase {
       XCTAssertEqual(c.distance(from: start, to: end), distance)
     }
   }
-
-  func testChainLazy() {
-    XCTAssertLazy(chain([1, 2, 3].lazy, [4, 5, 6]))
-  }
 }