fix compiler complaint

morganchen12 · morganchen12 · commit 1d98c36281e2 · 2021-04-15T14:04:34.000-07:00
diff --git a/FirebaseAuth/Sources/Auth/FIRAuthSettings.m b/FirebaseAuth/Sources/Auth/FIRAuthSettings.m
@@ -28,7 +28,7 @@ - (instancetype)init {
   return self;
 }
 
-- (instancetype)copyWithZone:(NSZone *__unused)zone {
+- (instancetype)copyWithZone:(NSZone *__unused _Nullable)zone {
   // Auth settings are mutable, so always return a copy.
   FIRAuthSettings *newSettings = [[FIRAuthSettings alloc] init];
   newSettings.appVerificationDisabledForTesting = self.isAppVerificationDisabledForTesting;

Original file line number	Diff line number	Diff line change
`@@ -28,7 +28,7 @@ - (instancetype)init {`
`28`	`28`	`return self;`
`29`	`29`	`}`
`30`	`30`
`31`		`-- (instancetype)copyWithZone:(NSZone *__unused)zone {`
	`31`	`+- (instancetype)copyWithZone:(NSZone *__unused _Nullable)zone {`
`32`	`32`	`// Auth settings are mutable, so always return a copy.`
`33`	`33`	`FIRAuthSettings *newSettings = [[FIRAuthSettings alloc] init];`
`34`	`34`	`newSettings.appVerificationDisabledForTesting = self.isAppVerificationDisabledForTesting;`