Port from qAsConst() to std::as_const()

We've been requiring C++17 since Qt 6.0, and our qAsConst use finally
starts to bother us (QTBUG-99313), so time to port away from it
now.

Since qAsConst has exactly the same semantics as std::as_const (down
to rvalue treatment, constexpr'ness and noexcept'ness), there's really
nothing more to it than a global search-and-replace, with manual
unstaging of the actual definition and documentation in dist/,
src/corelib/doc/ and src/corelib/global/.

Task-number: QTBUG-99313
Change-Id: I4c7114444a325ad4e62d0fcbfd347d2bbfb21541
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>

3 files changed, 9 insertions, 9 deletions

diff --git a/src/tools/moc/collectjson.cpp b/src/tools/moc/collectjson.cpp
index c0a4b64d7e..d542e2abc4 100644
--- a/src/tools/moc/collectjson.cpp
+++ b/src/tools/moc/collectjson.cpp
@@ -60,7 +60,7 @@ int collectJson(const QStringList &jsonFiles, const QString &outputFile, bool sk
 
     QStringList jsonFilesSorted = jsonFiles;
     jsonFilesSorted.sort();
-    for (const QString &jsonFile : qAsConst(jsonFilesSorted)) {
+    for (const QString &jsonFile : std::as_const(jsonFilesSorted)) {
         QFile f(jsonFile);
         if (!f.open(QIODevice::ReadOnly)) {
             fprintf(stderr, "Error opening %s for reading\n", qPrintable(jsonFile));
diff --git a/src/tools/moc/generator.cpp b/src/tools/moc/generator.cpp
index 13973645a1..d111380b8f 100644
--- a/src/tools/moc/generator.cpp
+++ b/src/tools/moc/generator.cpp
@@ -318,7 +318,7 @@ void Generator::generateCode()
 //
 // Build stringdata arrays
 //
-    for (const QByteArray &s : qAsConst(strings)) {
+    for (const QByteArray &s : std::as_const(strings)) {
         fputc(',', out);
         printStringWithIndentation(out, s);
     }
@@ -667,7 +667,7 @@ void Generator::generateCode()
         fprintf(out, "//     a) You are using a NOTIFY signal that does not exist. Fix it.\n");
         fprintf(out, "//     b) You are using a NOTIFY signal that does exist (in a parent class) but has a non-empty parameter list. This is a moc limitation.\n");
         fprintf(out, "[[maybe_unused]] static void checkNotifySignalValidity_%s(%s *t) {\n", qualifiedClassNameIdentifier.constData(), cdef->qualified.constData());
-        for (const QByteArray &nonClassSignal : qAsConst(cdef->nonClassSignalList))
+        for (const QByteArray &nonClassSignal : std::as_const(cdef->nonClassSignalList))
             fprintf(out, "    t->%s();\n", nonClassSignal.constData());
         fprintf(out, "}\n");
     }
diff --git a/src/tools/moc/moc.cpp b/src/tools/moc/moc.cpp
index a74dc246d7..9c18c3a862 100644
--- a/src/tools/moc/moc.cpp
+++ b/src/tools/moc/moc.cpp
@@ -968,7 +968,7 @@ void Moc::parse()
             classHash.insert(def.qualified, def.qualified);
         }
     }
-    for (const auto &n : qAsConst(namespaceList)) {
+    for (const auto &n : std::as_const(namespaceList)) {
         if (!n.hasQNamespace)
             continue;
         ClassDef def;
@@ -1143,7 +1143,7 @@ void Moc::generate(FILE *out, FILE *jsonOutput)
 
         QJsonArray classesJsonFormatted;
 
-        for (const ClassDef &cdef: qAsConst(classList))
+        for (const ClassDef &cdef: std::as_const(classList))
             classesJsonFormatted.append(cdef.toJson());
 
         if (!classesJsonFormatted.isEmpty())
@@ -1923,7 +1923,7 @@ QJsonObject ClassDef::toJson() const
     cls["qualifiedClassName"_L1] = QString::fromUtf8(qualified.constData());
 
     QJsonArray classInfos;
-    for (const auto &info: qAsConst(classInfoList)) {
+    for (const auto &info: std::as_const(classInfoList)) {
         QJsonObject infoJson;
         infoJson["name"_L1] = QString::fromUtf8(info.name);
         infoJson["value"_L1] = QString::fromUtf8(info.value);
@@ -1950,7 +1950,7 @@ QJsonObject ClassDef::toJson() const
 
     QJsonArray props;
 
-    for (const PropertyDef &propDef: qAsConst(propertyList))
+    for (const PropertyDef &propDef: std::as_const(propertyList))
         props.append(propDef.toJson());
 
     if (!props.isEmpty())
@@ -1965,7 +1965,7 @@ QJsonObject ClassDef::toJson() const
 
     QJsonArray superClasses;
 
-    for (const auto &super: qAsConst(superclassList)) {
+    for (const auto &super: std::as_const(superclassList)) {
         const auto name = super.first;
         const auto access = super.second;
         QJsonObject superCls;
@@ -1978,7 +1978,7 @@ QJsonObject ClassDef::toJson() const
         cls["superClasses"_L1] = superClasses;
 
     QJsonArray enums;
-    for (const EnumDef &enumDef: qAsConst(enumList))
+    for (const EnumDef &enumDef: std::as_const(enumList))
         enums.append(enumDef.toJson(*this));
     if (!enums.isEmpty())
         cls["enums"_L1] = enums;