Merge pull request #20926 from harlanhaskins/never-give-up

Harlan Haskins · web-flow · commit 44f0b0519fcf · 2018-11-30T16:11:14.000-08:00
[stdlib] Silence warnings related to uninhabited types
diff --git a/stdlib/public/core/Policy.swift b/stdlib/public/core/Policy.swift
@@ -34,8 +34,6 @@ extension Never: Equatable {}
 
 extension Never: Comparable {
   public static func < (lhs: Never, rhs: Never) -> Bool {
-    switch (lhs, rhs) {
-    }
   }
 }
 
diff --git a/stdlib/public/core/Range.swift b/stdlib/public/core/Range.swift
@@ -772,7 +772,7 @@ public enum UnboundedRange_ {
   /// The unbounded range operator (`...`) is valid only within a collection's
   /// subscript.
   public static postfix func ... (_: UnboundedRange_) -> () {
-    fatalError("uncallable")
+    // This function is uncallable
   }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -34,8 +34,6 @@ extension Never: Equatable {}`
`34`	`34`
`35`	`35`	`extension Never: Comparable {`
`36`	`36`	`public static func < (lhs: Never, rhs: Never) -> Bool {`
`37`		`- switch (lhs, rhs) {`
`38`		`- }`
`39`	`37`	`}`
`40`	`38`	`}`
`41`	`39`
Original file line number	Diff line number	Diff line change
`@@ -772,7 +772,7 @@ public enum UnboundedRange_ {`
`772`	`772`	/// The unbounded range operator (`...`) is valid only within a collection's
`773`	`773`	`/// subscript.`
`774`	`774`	`public static postfix func ... (_: UnboundedRange_) -> () {`
`775`		`- fatalError("uncallable")`
	`775`	`+ // This function is uncallable`
`776`	`776`	`}`
`777`	`777`	`}`
`778`	`778`