Bug 1651016 - Convert remaining NS_ENSURE_SUCCESS to QM_TRY in FileStreams.cpp; r=dom-workers-and-storage-reviewers,ttung,sg

Differential Revision: https://phabricator.services.mozilla.com/D84312

dom/quota/FileStreams.cpp

@@ -13,13 +13,11 @@ BEGIN_QUOTA_NAMESPACE
 
 template <class FileStreamBase>
 NS_IMETHODIMP FileQuotaStream<FileStreamBase>::SetEOF() {
-  nsresult rv = FileStreamBase::SetEOF();
-  NS_ENSURE_SUCCESS(rv, rv);
+  QM_TRY(FileStreamBase::SetEOF());
 
   if (mQuotaObject) {
     int64_t offset;
-    nsresult rv = FileStreamBase::Tell(&offset);
-    NS_ENSURE_SUCCESS(rv, rv);
+    QM_TRY(FileStreamBase::Tell(&offset));
 
     DebugOnly<bool> res =
         mQuotaObject->MaybeUpdateSize(offset, /* aTruncate */ true);
@@ -31,8 +29,7 @@ NS_IMETHODIMP FileQuotaStream<FileStreamBase>::SetEOF() {
 
 template <class FileStreamBase>
 NS_IMETHODIMP FileQuotaStream<FileStreamBase>::Close() {
-  nsresult rv = FileStreamBase::Close();
-  NS_ENSURE_SUCCESS(rv, rv);
+  QM_TRY(FileStreamBase::Close());
 
   mQuotaObject = nullptr;
 
@@ -49,8 +46,7 @@ nsresult FileQuotaStream<FileStreamBase>::DoOpen() {
       mPersistenceType, mGroup, mOrigin, mClientType,
       FileStreamBase::mOpenParams.localFile);
 
-  nsresult rv = FileStreamBase::DoOpen();
-  NS_ENSURE_SUCCESS(rv, rv);
+  QM_TRY(FileStreamBase::DoOpen());
 
   if (mQuotaObject && (FileStreamBase::mOpenParams.ioFlags & PR_TRUNCATE)) {
     DebugOnly<bool> res =
@@ -64,12 +60,9 @@ nsresult FileQuotaStream<FileStreamBase>::DoOpen() {
 template <class FileStreamBase>
 NS_IMETHODIMP FileQuotaStreamWithWrite<FileStreamBase>::Write(
     const char* aBuf, uint32_t aCount, uint32_t* _retval) {
-  nsresult rv;
-
   if (FileQuotaStreamWithWrite::mQuotaObject) {
     int64_t offset;
-    rv = FileStreamBase::Tell(&offset);
-    NS_ENSURE_SUCCESS(rv, rv);
+    QM_TRY(FileStreamBase::Tell(&offset));
 
     MOZ_ASSERT(INT64_MAX - offset >= int64_t(aCount));
 
@@ -80,8 +73,7 @@ NS_IMETHODIMP FileQuotaStreamWithWrite<FileStreamBase>::Write(
     }
   }
 
-  rv = FileStreamBase::Write(aBuf, aCount, _retval);
-  NS_ENSURE_SUCCESS(rv, rv);
+  QM_TRY(FileStreamBase::Write(aBuf, aCount, _retval));
 
   return NS_OK;
 }
@@ -92,8 +84,9 @@ already_AddRefed<FileInputStream> CreateFileInputStream(
     int32_t aIOFlags, int32_t aPerm, int32_t aBehaviorFlags) {
   RefPtr<FileInputStream> stream =
       new FileInputStream(aPersistenceType, aGroup, aOrigin, aClientType);
-  nsresult rv = stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags);
-  NS_ENSURE_SUCCESS(rv, nullptr);
+
+  QM_TRY(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags), nullptr);
+
   return stream.forget();
 }
 
@@ -103,8 +96,9 @@ already_AddRefed<FileOutputStream> CreateFileOutputStream(
     int32_t aIOFlags, int32_t aPerm, int32_t aBehaviorFlags) {
   RefPtr<FileOutputStream> stream =
       new FileOutputStream(aPersistenceType, aGroup, aOrigin, aClientType);
-  nsresult rv = stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags);
-  NS_ENSURE_SUCCESS(rv, nullptr);
+
+  QM_TRY(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags), nullptr);
+
   return stream.forget();
 }
 
@@ -114,8 +108,9 @@ already_AddRefed<FileStream> CreateFileStream(
     int32_t aIOFlags, int32_t aPerm, int32_t aBehaviorFlags) {
   RefPtr<FileStream> stream =
       new FileStream(aPersistenceType, aGroup, aOrigin, aClientType);
-  nsresult rv = stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags);
-  NS_ENSURE_SUCCESS(rv, nullptr);
+
+  QM_TRY(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags), nullptr);
+
   return stream.forget();
 }