Add noexcept qualifications in src/common

Apparently this can actually make a difference in some cases, and the
C++ Core Guideliens recommend doing this on all default constructors,
destructors, and all functions that can not throw (and thus also don't
allocate).

src/common/serialization/vst3/host-context/host-application.cpp

@@ -16,12 +16,12 @@
 
 #include "host-application.h"
 
-YaHostApplication::ConstructArgs::ConstructArgs() {}
+YaHostApplication::ConstructArgs::ConstructArgs() noexcept {}
 
 YaHostApplication::ConstructArgs::ConstructArgs(
-    Steinberg::IPtr<Steinberg::FUnknown> object)
+    Steinberg::IPtr<Steinberg::FUnknown> object) noexcept
     : supported(
           Steinberg::FUnknownPtr<Steinberg::Vst::IHostApplication>(object)) {}
 
-YaHostApplication::YaHostApplication(const ConstructArgs&& args)
+YaHostApplication::YaHostApplication(const ConstructArgs&& args) noexcept
     : arguments(std::move(args)) {}

src/common/serialization/vst3/host-context/host-application.h

@@ -38,13 +38,13 @@ class YaHostApplication : public Steinberg::Vst::IHostApplication {
      * These are the arguments for creating a `YaHostApplication`.
      */
     struct ConstructArgs {
-        ConstructArgs();
+        ConstructArgs() noexcept;
 
         /**
          * Check whether an existing implementation implements
          * `IHostApplication` and read arguments from it.
          */
-        ConstructArgs(Steinberg::IPtr<Steinberg::FUnknown> object);
+        ConstructArgs(Steinberg::IPtr<Steinberg::FUnknown> object) noexcept;
 
         /**
          * Whether the object supported this interface.
@@ -61,9 +61,9 @@ class YaHostApplication : public Steinberg::Vst::IHostApplication {
      * Instantiate this instance with arguments read from another interface
      * implementation.
      */
-    YaHostApplication(const ConstructArgs&& args);
+    YaHostApplication(const ConstructArgs&& args) noexcept;
 
-    inline bool supported() const { return arguments.supported; }
+    inline bool supported() const noexcept { return arguments.supported; }
 
     /**
      * The response code and resulting value for a call to

src/common/serialization/vst3/host-context/plug-interface-support.cpp

@@ -16,12 +16,12 @@
 
 #include "plug-interface-support.h"
 
-YaPlugInterfaceSupport::ConstructArgs::ConstructArgs() {}
+YaPlugInterfaceSupport::ConstructArgs::ConstructArgs() noexcept {}
 
 YaPlugInterfaceSupport::ConstructArgs::ConstructArgs(
-    Steinberg::IPtr<Steinberg::FUnknown> object)
+    Steinberg::IPtr<Steinberg::FUnknown> object) noexcept
     : supported(Steinberg::FUnknownPtr<Steinberg::Vst::IPlugInterfaceSupport>(
           object)) {}
 
-YaPlugInterfaceSupport::YaPlugInterfaceSupport(const ConstructArgs&& args)
+YaPlugInterfaceSupport::YaPlugInterfaceSupport(const ConstructArgs&& args) noexcept
     : arguments(std::move(args)) {}

src/common/serialization/vst3/host-context/plug-interface-support.h

@@ -35,13 +35,13 @@ class YaPlugInterfaceSupport : public Steinberg::Vst::IPlugInterfaceSupport {
      * These are the arguments for creating a `YaPlugInterfaceSupport`.
      */
     struct ConstructArgs {
-        ConstructArgs();
+        ConstructArgs() noexcept;
 
         /**
          * Check whether an existing implementation implements
          * `IPlugInterfaceSupport` and read arguments from it.
          */
-        ConstructArgs(Steinberg::IPtr<Steinberg::FUnknown> object);
+        ConstructArgs(Steinberg::IPtr<Steinberg::FUnknown> object) noexcept;
 
         /**
          * Whether the object supported this interface.
@@ -58,9 +58,9 @@ class YaPlugInterfaceSupport : public Steinberg::Vst::IPlugInterfaceSupport {
      * Instantiate this instance with arguments read from another interface
      * implementation.
      */
-    YaPlugInterfaceSupport(const ConstructArgs&& args);
+    YaPlugInterfaceSupport(const ConstructArgs&& args) noexcept;
 
-    inline bool supported() const { return arguments.supported; }
+    inline bool supported() const noexcept { return arguments.supported; }
 
     /**
      * Message to pass through a call to