[test] avoid using array conversion for String-from-C-string

glessard · glessard · commit 490b4ec0c119 · 2022-04-21T19:13:48.000-06:00
diff --git a/test/Prototypes/PatternMatching.swift b/test/Prototypes/PatternMatching.swift
@@ -302,7 +302,9 @@ extension Collection where Iterator.Element == UTF8.CodeUnit {
     a.reserveCapacity(count + 1)
     a.append(contentsOf: self)
     a.append(0)
-    return String(reflecting: String(cString: a))
+    return a.withUnsafeBufferPointer {
+      String(reflecting: String(cString: $0.baseAddress!))
+    }
   }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -302,7 +302,9 @@ extension Collection where Iterator.Element == UTF8.CodeUnit {`
`302`	`302`	`a.reserveCapacity(count + 1)`
`303`	`303`	`a.append(contentsOf: self)`
`304`	`304`	`a.append(0)`
`305`		`- return String(reflecting: String(cString: a))`
	`305`	`+ return a.withUnsafeBufferPointer {`
	`306`	`+ String(reflecting: String(cString: $0.baseAddress!))`
	`307`	`+ }`
`306`	`308`	`}`
`307`	`309`	`}`
`308`	`310`