fix: build with qt5.12 on Linux and pedantic flag

Signed-off-by: flow <flowlnlnln@gmail.com>

launcher/modplatform/ResourceAPI.h

@@ -39,6 +39,7 @@
 #include <QString>
 
 #include <list>
+#include <optional>
 
 #include "../Version.h"
 

launcher/ui/dialogs/ResourceDownloadDialog.h

@@ -21,6 +21,7 @@
 
 #include <QDialog>
 #include <QDialogButtonBox>
+#include <QHash>
 #include <QLayout>
 
 #include "QObjectPtr.h"

launcher/ui/pages/modplatform/ResourceModel.h

@@ -35,19 +35,16 @@ class ResourceModel : public QAbstractListModel {
     [[nodiscard]] virtual auto metaEntryBase() const -> QString = 0;
 
     [[nodiscard]] inline int rowCount(const QModelIndex& parent) const override { return parent.isValid() ? 0 : m_packs.size(); }
-    [[nodiscard]] inline int columnCount(const QModelIndex& parent) const override { return parent.isValid() ? 0 : 1; };
+    [[nodiscard]] inline int columnCount(const QModelIndex& parent) const override { return parent.isValid() ? 0 : 1; }
-    [[nodiscard]] inline auto flags(const QModelIndex& index) const -> Qt::ItemFlags override { return QAbstractListModel::flags(index); };
+    [[nodiscard]] inline auto flags(const QModelIndex& index) const -> Qt::ItemFlags override { return QAbstractListModel::flags(index); }
 
     inline void addActiveJob(Task::Ptr ptr) { m_current_job.addTask(ptr); if (!m_current_job.isRunning()) m_current_job.start(); }
     inline Task const& activeJob() { return m_current_job; }
 
-   signals:
-    void versionListUpdated();
-    void projectInfoUpdated();
-
    public slots:
     void fetchMore(const QModelIndex& parent) override;
-    [[nodiscard]] inline bool canFetchMore(const QModelIndex& parent) const override
+    // NOTE: Can't use [[nodiscard]] here because of https://bugreports.qt.io/browse/QTBUG-58628 on Qt 5.12
+    inline bool canFetchMore(const QModelIndex& parent) const override
     {
         return parent.isValid() ? false : m_search_state == SearchState::CanFetchMore;
     }
@@ -105,6 +102,10 @@ class ResourceModel : public QAbstractListModel {
     /* Default search request callbacks */
     void searchRequestFailed(QString reason, int network_error_code);
     void searchRequestAborted();
+
+   signals:
+    void versionListUpdated();
+    void projectInfoUpdated();
 };
 
 }  // namespace ResourceDownload

launcher/ui/pages/modplatform/ResourcePage.cpp

@@ -302,7 +302,9 @@ void ResourcePage::openUrl(const QUrl& url)
     QRegularExpressionMatch match;
     QString page;
 
-    for (auto&& [regex, candidate] : urlHandlers().asKeyValueRange()) {
+    auto handlers = urlHandlers();
+    for (auto it = handlers.constKeyValueBegin(); it != handlers.constKeyValueEnd(); it++) {
+        auto&& [regex, candidate] = *it;
         if (match = QRegularExpression(regex).match(address); match.hasMatch()) {
             page = candidate;
             break;

launcher/ui/pages/modplatform/ResourcePage.h

@@ -75,8 +75,10 @@ class ResourcePage : public QWidget, public BasePage {
     void onVersionSelectionChanged(QString data);
     void onResourceSelected();
 
+    // NOTE: Can't use [[nodiscard]] here because of https://bugreports.qt.io/browse/QTBUG-58628 on Qt 5.12
+
     /** Associates regex expressions to pages in the order they're given in the map. */
-    [[nodiscard]] virtual QMap<QString, QString> urlHandlers() const = 0;
+    virtual QMap<QString, QString> urlHandlers() const = 0;
     virtual void openUrl(const QUrl&);
 
     /** Whether the version is opted out or not. Currently only makes sense in CF. */

launcher/ui/pages/modplatform/flame/FlameResourcePages.h

@@ -49,7 +49,7 @@ static inline QString displayName() { return "CurseForge"; }
 static inline QIcon icon() { return APPLICATION->getThemedIcon("flame"); }
 static inline QString id() { return "curseforge"; }
 static inline QString debugName() { return "Flame"; }
-static inline QString metaEntryBase() { return "FlameMods"; };
+static inline QString metaEntryBase() { return "FlameMods"; }
 }
 
 class FlameModPage : public ModPage {

launcher/ui/pages/modplatform/modrinth/ModrinthResourceModels.cpp

@@ -26,7 +26,7 @@ namespace ResourceDownload {
 // NOLINTNEXTLINE(modernize-avoid-c-arrays)
 const char* ModrinthModModel::sorts[5]{ "relevance", "downloads", "follows", "updated", "newest" };
 
-ModrinthModModel::ModrinthModModel(BaseInstance const& base) : ModModel(base, new ModrinthAPI){};
+ModrinthModModel::ModrinthModModel(BaseInstance const& base) : ModModel(base, new ModrinthAPI) {}
 
 void ModrinthModModel::loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj)
 {

launcher/ui/pages/modplatform/modrinth/ModrinthResourcePages.h

@@ -48,7 +48,7 @@ static inline QString displayName() { return "Modrinth"; }
 static inline QIcon icon() { return APPLICATION->getThemedIcon("modrinth"); }
 static inline QString id() { return "modrinth"; }
 static inline QString debugName() { return "Modrinth"; }
-static inline QString metaEntryBase() { return "ModrinthPacks"; };
+static inline QString metaEntryBase() { return "ModrinthPacks"; }
 }
 
 class ModrinthModPage : public ModPage {