C++11 cleanup on constructors (#6000)

* C++11 cleanup on constructors dir script

src/script/lua_api/l_areastore.cpp

@@ -300,20 +300,19 @@ int LuaAreaStore::l_from_file(lua_State *L)
 	return deserialization_helper(L, o->as, is);
 }
 
-LuaAreaStore::LuaAreaStore()
+LuaAreaStore::LuaAreaStore() : as(AreaStore::getOptimalImplementation())
 {
-	this->as = AreaStore::getOptimalImplementation();
 }
 
 LuaAreaStore::LuaAreaStore(const std::string &type)
 {
 #if USE_SPATIAL
 	if (type == "LibSpatial") {
-		this->as = new SpatialAreaStore();
+		as = new SpatialAreaStore();
 	} else
 #endif
 	{
-		this->as = new VectorAreaStore();
+		as = new VectorAreaStore();
 	}
 }
 

src/script/lua_api/l_areastore.h

@@ -49,7 +49,7 @@ private:
 	static int l_from_file(lua_State *L);
 
 public:
-	AreaStore *as;
+	AreaStore *as = nullptr;
 
 	LuaAreaStore();
 	LuaAreaStore(const std::string &type);

src/script/lua_api/l_camera.cpp

@@ -4,9 +4,8 @@
 #include "content_cao.h"
 #include "camera.h"
 
-LuaCamera::LuaCamera(Camera *m)
+LuaCamera::LuaCamera(Camera *m) : m_camera(m)
 {
-	m_camera = m;
 }
 
 void LuaCamera::create(lua_State *L, Camera *m)

src/script/lua_api/l_camera.h

@@ -26,7 +26,7 @@ private:
 	static int l_get_look_horizontal(lua_State *L);
 	static int l_get_aspect_ratio(lua_State *L);
 
-	Camera *m_camera;
+	Camera *m_camera = nullptr;
 
 public:
 	LuaCamera(Camera *m);

src/script/lua_api/l_itemstackmeta.h

@@ -28,7 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 class ItemStackMetaRef : public MetaDataRef
 {
 private:
-	ItemStack *istack;
+	ItemStack *istack = nullptr;
 
 	static const char className[];
 	static const luaL_Reg methods[];

src/script/lua_api/l_localplayer.cpp

@@ -21,9 +21,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "l_internal.h"
 #include "script/common/c_converter.h"
 
-LuaLocalPlayer::LuaLocalPlayer(LocalPlayer *m)
+LuaLocalPlayer::LuaLocalPlayer(LocalPlayer *m) : m_localplayer(m)
 {
-	m_localplayer = m;
 }
 
 void LuaLocalPlayer::create(lua_State *L, LocalPlayer *m)

src/script/lua_api/l_localplayer.h

@@ -67,7 +67,7 @@ private:
 
 	static int l_get_movement(lua_State *L);
 
-	LocalPlayer *m_localplayer;
+	LocalPlayer *m_localplayer = nullptr;
 
 public:
 	LuaLocalPlayer(LocalPlayer *m);

src/script/lua_api/l_minimap.cpp

@@ -24,9 +24,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "minimap.h"
 #include "settings.h"
 
-LuaMinimap::LuaMinimap(Minimap *m)
+LuaMinimap::LuaMinimap(Minimap *m) : m_minimap(m)
 {
-	m_minimap = m;
 }
 
 void LuaMinimap::create(lua_State *L, Minimap *m)

src/script/lua_api/l_minimap.h

@@ -48,7 +48,7 @@ private:
 	static int l_set_shape(lua_State *L);
 	static int l_get_shape(lua_State *L);
 
-	Minimap *m_minimap;
+	Minimap *m_minimap = nullptr;
 
 public:
 	LuaMinimap(Minimap *m);

src/script/lua_api/l_nodemeta.cpp

@@ -171,14 +171,12 @@ bool NodeMetaRef::handleFromTable(lua_State *L, int table, Metadata *_meta)
 
 NodeMetaRef::NodeMetaRef(v3s16 p, ServerEnvironment *env):
 	m_p(p),
-	m_env(env),
-	m_is_local(false)
+	m_env(env)
 {
 }
 
 NodeMetaRef::NodeMetaRef(Metadata *meta):
-	m_meta(meta),
-	m_is_local(true)
+	m_meta(meta)
 {
 }
 

src/script/lua_api/l_nodemeta.h

@@ -34,9 +34,9 @@ class NodeMetadata;
 class NodeMetaRef : public MetaDataRef {
 private:
 	v3s16 m_p;
-	ServerEnvironment *m_env;
-	Metadata *m_meta;
-	bool m_is_local;
+	ServerEnvironment *m_env = nullptr;
+	Metadata *m_meta = nullptr;
+	bool m_is_local = false;
 
 	static const char className[];
 	static const luaL_Reg methodsServer[];

src/script/lua_api/l_nodetimer.h

@@ -29,7 +29,7 @@ class NodeTimerRef : public ModApiBase
 {
 private:
 	v3s16 m_p;
-	ServerEnvironment *m_env;
+	ServerEnvironment *m_env = nullptr;
 
 	static const char className[];
 	static const luaL_Reg methods[];

src/script/lua_api/l_object.h

@@ -33,16 +33,29 @@ class RemotePlayer;
 */
 
 class ObjectRef : public ModApiBase {
-private:
-	ServerActiveObject *m_object;
-
-	static const char className[];
-	static const luaL_Reg methods[];
 public:
+	ObjectRef(ServerActiveObject *object);
+
+	~ObjectRef();
+
+	// Creates an ObjectRef and leaves it on top of stack
+	// Not callable from Lua; all references are created on the C side.
+	static void create(lua_State *L, ServerActiveObject *object);
+
+	static void set_null(lua_State *L);
+
+	static void Register(lua_State *L);
+
 	static ObjectRef *checkobject(lua_State *L, int narg);
 
 	static ServerActiveObject* getobject(ObjectRef *ref);
 private:
+	ServerActiveObject *m_object = nullptr;
+
+	static const char className[];
+	static const luaL_Reg methods[];
+
+
 	static LuaEntitySAO* getluaobject(ObjectRef *ref);
 
 	static PlayerSAO* getplayersao(ObjectRef *ref);
@@ -319,18 +332,6 @@ private:
 	// get_nametag_attributes(self)
 	static int l_get_nametag_attributes(lua_State *L);
 
-public:
-	ObjectRef(ServerActiveObject *object);
-
-	~ObjectRef();
-
-	// Creates an ObjectRef and leaves it on top of stack
-	// Not callable from Lua; all references are created on the C side.
-	static void create(lua_State *L, ServerActiveObject *object);
-
-	static void set_null(lua_State *L);
-
-	static void Register(lua_State *L);
 };
 
 #endif /* L_OBJECT_H_ */

src/script/lua_api/l_settings.cpp

@@ -32,9 +32,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 LuaSettings::LuaSettings(Settings *settings, const std::string &filename) :
 	m_settings(settings),
-	m_filename(filename),
-	m_is_own_settings(false),
-	m_write_allowed(true)
+	m_filename(filename)
 {
 }
 

src/script/lua_api/l_settings.h

@@ -57,10 +57,10 @@ private:
 	// to_table(self) -> {[key1]=value1,...}
 	static int l_to_table(lua_State *L);
 
-	Settings *m_settings;
+	Settings *m_settings = nullptr;
 	std::string m_filename;
-	bool m_is_own_settings;
-	bool m_write_allowed;
+	bool m_is_own_settings = false;
+	bool m_write_allowed = true;
 
 public:
 	LuaSettings(Settings *settings, const std::string &filename);

src/script/lua_api/l_storage.h

@@ -38,7 +38,7 @@ public:
 class StorageRef : public MetaDataRef
 {
 private:
-	ModMetadata *m_object;
+	ModMetadata *m_object = nullptr;
 
 	static const char className[];
 	static const luaL_Reg methods[];

src/script/lua_api/l_vmanip.cpp

@@ -365,22 +365,17 @@ int LuaVoxelManip::l_get_emerged_area(lua_State *L)
 	return 2;
 }
 
-LuaVoxelManip::LuaVoxelManip(MMVManip *mmvm, bool is_mg_vm)
+LuaVoxelManip::LuaVoxelManip(MMVManip *mmvm, bool is_mg_vm) : vm(mmvm), is_mapgen_vm(is_mg_vm)
 {
-	this->vm           = mmvm;
-	this->is_mapgen_vm = is_mg_vm;
 }
 
-LuaVoxelManip::LuaVoxelManip(Map *map)
+LuaVoxelManip::LuaVoxelManip(Map *map) : vm(new MMVManip(map))
 {
-	this->vm = new MMVManip(map);
-	this->is_mapgen_vm = false;
 }
 
 LuaVoxelManip::LuaVoxelManip(Map *map, v3s16 p1, v3s16 p2)
 {
-	this->vm = new MMVManip(map);
-	this->is_mapgen_vm = false;
+	vm = new MMVManip(map);
 
 	v3s16 bp1 = getNodeBlockPos(p1);
 	v3s16 bp2 = getNodeBlockPos(p2);

src/script/lua_api/l_vmanip.h

@@ -35,7 +35,7 @@ class LuaVoxelManip : public ModApiBase
 {
 private:
 	std::map<v3s16, MapBlock *> modified_blocks;
-	bool is_mapgen_vm;
+	bool is_mapgen_vm = false;
 
 	static const char className[];
 	static const luaL_Reg methods[];
@@ -65,7 +65,7 @@ private:
 	static int l_get_emerged_area(lua_State *L);
 
 public:
-	MMVManip *vm;
+	MMVManip *vm = nullptr;
 
 	LuaVoxelManip(MMVManip *mmvm, bool is_mapgen_vm);
 	LuaVoxelManip(Map *map, v3s16 p1, v3s16 p2);