QSignalBlocker: mark all functions as noexcept

Consequently, mark also QObject::isSignalsBlocked() and
QObject::blockSignals() as noexcept.

Change-Id: Iaf44674bbf54eeb2bb5f267eb7caa916eccbf7fb
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>

2 files changed, 15 insertions, 15 deletions

diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index 774e46ea33..1836405b9c 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -1395,7 +1395,7 @@ bool QObject::eventFilter(QObject * /* watched */, QEvent * /* event */)
     \sa signalsBlocked()
 */
 
-bool QObject::blockSignals(bool block)
+bool QObject::blockSignals(bool block) Q_DECL_NOTHROW
 {
     Q_D(QObject);
     bool previous = d->blockSig;
diff --git a/src/corelib/kernel/qobject.h b/src/corelib/kernel/qobject.h
index 42d18d6c41..ecea13fc4a 100644
--- a/src/corelib/kernel/qobject.h
+++ b/src/corelib/kernel/qobject.h
@@ -137,8 +137,8 @@ public:
     inline bool isWidgetType() const { return d_ptr->isWidget; }
     inline bool isWindowType() const { return d_ptr->isWindow; }
 
-    inline bool signalsBlocked() const { return d_ptr->blockSig; }
-    bool blockSignals(bool b);
+    inline bool signalsBlocked() const Q_DECL_NOTHROW { return d_ptr->blockSig; }
+    bool blockSignals(bool b) Q_DECL_NOTHROW;
 
     QThread *thread() const;
     void moveToThread(QThread *thread);
@@ -552,17 +552,17 @@ Q_CORE_EXPORT QDebug operator<<(QDebug, const QObject *);
 class QSignalBlocker
 {
 public:
-    inline explicit QSignalBlocker(QObject *o);
-    inline explicit QSignalBlocker(QObject &o);
+    inline explicit QSignalBlocker(QObject *o) Q_DECL_NOTHROW;
+    inline explicit QSignalBlocker(QObject &o) Q_DECL_NOTHROW;
     inline ~QSignalBlocker();
 
 #ifdef Q_COMPILER_RVALUE_REFS
-    inline QSignalBlocker(QSignalBlocker &&other);
-    inline QSignalBlocker &operator=(QSignalBlocker &&other);
+    inline QSignalBlocker(QSignalBlocker &&other) Q_DECL_NOTHROW;
+    inline QSignalBlocker &operator=(QSignalBlocker &&other) Q_DECL_NOTHROW;
 #endif
 
-    inline void reblock();
-    inline void unblock();
+    inline void reblock() Q_DECL_NOTHROW;
+    inline void unblock() Q_DECL_NOTHROW;
 private:
     Q_DISABLE_COPY(QSignalBlocker)
     QObject * m_o;
@@ -570,20 +570,20 @@ private:
     bool m_inhibited;
 };
 
-QSignalBlocker::QSignalBlocker(QObject *o)
+QSignalBlocker::QSignalBlocker(QObject *o) Q_DECL_NOTHROW
     : m_o(o),
       m_blocked(o && o->blockSignals(true)),
       m_inhibited(false)
 {}
 
-QSignalBlocker::QSignalBlocker(QObject &o)
+QSignalBlocker::QSignalBlocker(QObject &o) Q_DECL_NOTHROW
     : m_o(&o),
       m_blocked(o.blockSignals(true)),
       m_inhibited(false)
 {}
 
 #ifdef Q_COMPILER_RVALUE_REFS
-QSignalBlocker::QSignalBlocker(QSignalBlocker &&other)
+QSignalBlocker::QSignalBlocker(QSignalBlocker &&other) Q_DECL_NOTHROW
     : m_o(other.m_o),
       m_blocked(other.m_blocked),
       m_inhibited(other.m_inhibited)
@@ -591,7 +591,7 @@ QSignalBlocker::QSignalBlocker(QSignalBlocker &&other)
     other.m_o = 0;
 }
 
-QSignalBlocker &QSignalBlocker::operator=(QSignalBlocker &&other)
+QSignalBlocker &QSignalBlocker::operator=(QSignalBlocker &&other) Q_DECL_NOTHROW
 {
     if (this != &other) {
         // if both *this and other block the same object's signals:
@@ -614,13 +614,13 @@ QSignalBlocker::~QSignalBlocker()
         m_o->blockSignals(m_blocked);
 }
 
-void QSignalBlocker::reblock()
+void QSignalBlocker::reblock() Q_DECL_NOTHROW
 {
     if (m_o) m_o->blockSignals(true);
     m_inhibited = false;
 }
 
-void QSignalBlocker::unblock()
+void QSignalBlocker::unblock() Q_DECL_NOTHROW
 {
     if (m_o) m_o->blockSignals(m_blocked);
     m_inhibited = true;