Account for Substring update

airspeedswift · Ben Cohen · commit d852ff9ce65a · 2017-04-28T12:09:58.000-07:00
diff --git a/stdlib/public/core/Substring.swift.gyb b/stdlib/public/core/Substring.swift.gyb
@@ -32,8 +32,8 @@ public struct Substring : RangeReplaceableCollection, BidirectionalCollection {
     _slice = RangeReplaceableBidirectionalSlice(base: base, bounds: bounds)
   }
 
-  internal init(_base base: String, _ bounds: ClosedRange<Index>) {
-    self.init(_base: base, base._makeHalfOpen(bounds))
+  internal init<R: RangeExpression>(_base base: String, _ bounds: R) where R.Bound == Index {
+    self.init(_base: base, bounds.relative(to: base))
   }
 
   public var startIndex: Index { return _slice.startIndex }

Original file line number	Diff line number	Diff line change
`@@ -32,8 +32,8 @@ public struct Substring : RangeReplaceableCollection, BidirectionalCollection {`
`32`	`32`	`_slice = RangeReplaceableBidirectionalSlice(base: base, bounds: bounds)`
`33`	`33`	`}`
`34`	`34`
`35`		`- internal init(_base base: String, _ bounds: ClosedRange<Index>) {`
`36`		`- self.init(_base: base, base._makeHalfOpen(bounds))`
	`35`	`+ internal init<R: RangeExpression>(_base base: String, _ bounds: R) where R.Bound == Index {`
	`36`	`+ self.init(_base: base, bounds.relative(to: base))`
`37`	`37`	`}`
`38`	`38`
`39`	`39`	`public var startIndex: Index { return _slice.startIndex }`