GitUtils: Get rid of unused Stash::clear() method

Make parseStashLine() a local static method returning optional Stash.

Change-Id: If702a4485ce87336ab829b522258e62a930589bf
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/git/gitclient.cpp

@@ -3357,6 +3357,31 @@ bool GitClient::synchronousStashRemove(const FilePath &workingDirectory, const Q
     return false;
 }
 
+/* Parse a stash line in its 2 manifestations (with message/without message containing
+ * <base_sha1>+subject):
+\code
+stash@{1}: WIP on <branch>: <base_sha1> <subject_base_sha1>
+stash@{2}: On <branch>: <message>
+\endcode */
+
+static std::optional<Stash> parseStashLine(const QString &l)
+{
+    const QChar colon = ':';
+    const int branchPos = l.indexOf(colon);
+    if (branchPos < 0)
+        return {};
+    const int messagePos = l.indexOf(colon, branchPos + 1);
+    if (messagePos < 0)
+        return {};
+    // Branch spec
+    const int onIndex = l.indexOf("on ", branchPos + 2, Qt::CaseInsensitive);
+    if (onIndex == -1 || onIndex >= messagePos)
+        return {};
+    return Stash{l.left(branchPos),
+                 l.mid(onIndex + 3, messagePos - onIndex - 3),
+                 l.mid(messagePos + 2)}; // skip blank
+}
+
 bool GitClient::synchronousStashList(const FilePath &workingDirectory, QList<Stash> *stashes,
                                      QString *errorMessage) const
 {
@@ -3369,11 +3394,11 @@ bool GitClient::synchronousStashList(const FilePath &workingDirectory, QList<Sta
         msgCannotRun(arguments, workingDirectory, result.cleanedStdErr(), errorMessage);
         return false;
     }
-    Stash stash;
     const QStringList lines = splitLines(result.cleanedStdOut());
     for (const QString &line : lines) {
-        if (stash.parseStashLine(line))
-            stashes->push_back(stash);
+        const auto stash = parseStashLine(line);
+        if (stash)
+            stashes->push_back(*stash);
     }
     return true;
 }

src/plugins/git/gitutils.cpp

@@ -8,40 +8,6 @@
 
 namespace Git::Internal {
 
-void Stash::clear()
-{
-    name.clear();
-    branch.clear();
-    message.clear();
-}
-
-/* Parse a stash line in its 2 manifestations (with message/without message containing
- * <base_sha1>+subject):
-\code
-stash@{1}: WIP on <branch>: <base_sha1> <subject_base_sha1>
-stash@{2}: On <branch>: <message>
-\endcode */
-
-bool Stash::parseStashLine(const QString &l)
-{
-    const QChar colon = ':';
-    const int branchPos = l.indexOf(colon);
-    if (branchPos < 0)
-        return false;
-    const int messagePos = l.indexOf(colon, branchPos + 1);
-    if (messagePos < 0)
-        return false;
-    // Branch spec
-    const int onIndex = l.indexOf("on ", branchPos + 2, Qt::CaseInsensitive);
-    if (onIndex == -1 || onIndex >= messagePos)
-        return false;
-    // Happy!
-    name = l.left(branchPos);
-    branch = l.mid(onIndex + 3, messagePos - onIndex - 3);
-    message = l.mid(messagePos + 2); // skip blank
-    return true;
-}
-
 // Make QInputDialog  play nicely, widen it a bit.
 bool inputText(QWidget *parent, const QString &title, const QString &prompt, QString *s)
 {

src/plugins/git/gitutils.h

@@ -14,9 +14,6 @@ namespace Git::Internal {
 class Stash
 {
 public:
-    void clear();
-    bool parseStashLine(const QString &l);
-
     QString name;
     QString branch;
     QString message;

src/plugins/git/stashdialog.cpp

@@ -167,7 +167,7 @@ void StashDialog::refresh(const FilePath &repository, bool force)
     m_repository = repository;
     m_repositoryLabel->setText(msgRepositoryLabel(repository));
     if (m_repository.isEmpty()) {
-        m_model->setStashes(QList<Stash>());
+        m_model->setStashes({});
     } else {
         QList<Stash> stashes;
         gitClient().synchronousStashList(m_repository, &stashes);