Do a fast NFC check over the slice instead of guts

Azoy · Azoy · commit aadf4a13a226 · 2024-02-08T10:50:03.000-08:00
diff --git a/stdlib/public/core/String.swift b/stdlib/public/core/String.swift
@@ -1169,7 +1169,7 @@ extension _StringGutsSlice {
   }
 
   internal func _fastNFCCheck(_ isNFCQC: inout Bool, _ prevCCC: inout UInt8) {
-    _guts.withFastUTF8 { utf8 in
+    withFastUTF8 { utf8 in
       var position = 0
 
       while position < utf8.count {

Original file line number	Diff line number	Diff line change
`@@ -1169,7 +1169,7 @@ extension _StringGutsSlice {`
`1169`	`1169`	`}`
`1170`	`1170`
`1171`	`1171`	`internal func _fastNFCCheck(_ isNFCQC: inout Bool, _ prevCCC: inout UInt8) {`
`1172`		`- _guts.withFastUTF8 { utf8 in`
	`1172`	`+ withFastUTF8 { utf8 in`
`1173`	`1173`	`var position = 0`
`1174`	`1174`
`1175`	`1175`	`while position < utf8.count {`