Enable QT_NO_URL_CAST_FROM_STRING and QT_STRICT_ITERATORS.

* QT_NO_URL_CAST_FROM_STRING makes it clearer where QUrls are created
from QStrings (which incurs a parsing cost).

* QT_STRICT_ITERATORS helps detecting where begin()/end() is used
instead of cbegin()/cend(). KDE developers have verified that
the generated assembly code is identical.

7 files changed, 8 insertions, 8 deletions

diff --git a/lib/connection.cpp b/lib/connection.cpp
index e84b8080..2a86d2eb 100644
--- a/lib/connection.cpp
+++ b/lib/connection.cpp
@@ -931,8 +931,8 @@ void Connection::doInDirectChat(User* u,
     // There can be more than one DC; find the first valid (existing and
     // not left), and delete inexistent (forgotten?) ones along the way.
     DirectChatsMap removals;
-    for (auto it = std::as_const(d->directChats).find(u);
-         it != d->directChats.end() && it.key() == u; ++it) {
+    for (auto it = d->directChats.constFind(u);
+         it != d->directChats.constEnd() && it.key() == u; ++it) {
         const auto& roomId = *it;
         if (auto r = room(roomId, JoinState::Join)) {
             Q_ASSERT(r->id() == roomId);
diff --git a/lib/events/eventcontent.cpp b/lib/events/eventcontent.cpp
index 802d8176..0cb9e292 100644
--- a/lib/events/eventcontent.cpp
+++ b/lib/events/eventcontent.cpp
@@ -89,7 +89,7 @@ void ImageInfo::fillInfoJson(QJsonObject* infoJson) const
 }
 
 Thumbnail::Thumbnail(const QJsonObject& infoJson)
-    : ImageInfo(infoJson["thumbnail_url"_ls].toString(),
+    : ImageInfo(QUrl(infoJson["thumbnail_url"_ls].toString()),
                 infoJson["thumbnail_info"_ls].toObject())
 {}
 
diff --git a/lib/events/eventcontent.h b/lib/events/eventcontent.h
index 0d4c047e..9c167d4b 100644
--- a/lib/events/eventcontent.h
+++ b/lib/events/eventcontent.h
@@ -189,7 +189,7 @@ namespace EventContent {
         using InfoT::InfoT;
         explicit UrlBasedContent(const QJsonObject& json)
             : TypedBase(json)
-            , InfoT(json["url"].toString(), json["info"].toObject(),
+            , InfoT(QUrl(json["url"].toString()), json["info"].toObject(),
                     json["filename"].toString())
         {
             // A small hack to facilitate links creation in QML.
diff --git a/lib/events/roommemberevent.cpp b/lib/events/roommemberevent.cpp
index be47e412..913bde74 100644
--- a/lib/events/roommemberevent.cpp
+++ b/lib/events/roommemberevent.cpp
@@ -52,7 +52,7 @@ MemberEventContent::MemberEventContent(const QJsonObject& json)
     : membership(fromJson<MembershipType>(json["membership"_ls]))
     , isDirect(json["is_direct"_ls].toBool())
     , displayName(fromJson<Omittable<QString>>(json["displayname"_ls]))
-    , avatarUrl(fromJson<Omittable<QUrl>>(json["avatar_url"_ls]))
+    , avatarUrl(fromJson<Omittable<QString>>(json["avatar_url"_ls]))
     , reason(json["reason"_ls].toString())
 {
     if (displayName)
diff --git a/lib/jobs/basejob.cpp b/lib/jobs/basejob.cpp
index 1f0e84ba..422931ee 100644
--- a/lib/jobs/basejob.cpp
+++ b/lib/jobs/basejob.cpp
@@ -534,7 +534,7 @@ BaseJob::Status BaseJob::prepareError()
     }
 
     if (errCode == "M_CONSENT_NOT_GIVEN") {
-        d->errorUrl = errorJson.value("consent_uri"_ls).toString();
+        d->errorUrl = QUrl(errorJson.value("consent_uri"_ls).toString());
         return { UserConsentRequiredError };
     }
     if (errCode == "M_UNSUPPORTED_ROOM_VERSION"
diff --git a/lib/room.cpp b/lib/room.cpp
index 1af294a7..a309cd24 100644
--- a/lib/room.cpp
+++ b/lib/room.cpp
@@ -1947,7 +1947,7 @@ void Room::uploadFile(const QString& id, const QUrl& localFilename,
                 });
         connect(job, &BaseJob::success, this, [this, id, localFilename, job] {
             d->fileTransfers[id].status = FileTransferInfo::Completed;
-            emit fileTransferCompleted(id, localFilename, job->contentUri());
+            emit fileTransferCompleted(id, localFilename, QUrl(job->contentUri()));
         });
         connect(job, &BaseJob::failure, this,
                 std::bind(&Private::failedTransfer, d, id, job->errorString()));
diff --git a/lib/ssosession.cpp b/lib/ssosession.cpp
index be701204..3c6ec48b 100644
--- a/lib/ssosession.cpp
+++ b/lib/ssosession.cpp
@@ -70,7 +70,7 @@ SsoSession::~SsoSession()
 
 QUrl SsoSession::ssoUrl() const { return d->ssoUrl; }
 
-QUrl SsoSession::callbackUrl() const { return d->callbackUrl; }
+QUrl SsoSession::callbackUrl() const { return QUrl(d->callbackUrl); }
 
 void SsoSession::Private::processCallback()
 {