logger: use Logger* instead of Logger& to propagate signature using swig

See the comment in IfcLogger.h explaining this.

src/serializers/ColladaSerializer.h

@@ -219,8 +219,8 @@ private:
 	std::string unit_name;
 	float unit_magnitude;
 public:
-    ColladaSerializer(const std::string& dae_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger& logger = Logger::Root())
-        : WriteOnlyGeometrySerializer(geometry_settings, settings, logger)
+    ColladaSerializer(const std::string& dae_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger* logger = nullptr)
+        : WriteOnlyGeometrySerializer(geometry_settings, settings, logger_or_root(logger))
 		, exporter("IfcOpenShell", dae_filename, this, settings.get<ifcopenshell::geometry::settings::FloatingPointDigits>().get() >= 15)
     {
         exporter.serializer = this;

src/serializers/GltfSerializer.cpp

@@ -53,8 +53,8 @@ static const uint32_t PRIM_TRIANGLE_FAN = 6;
 static const uint32_t ELEMENT_ARRAY_BUFFER = 34963;
 static const uint32_t ARRAY_BUFFER = 34962;
 
-GltfSerializer::GltfSerializer(const std::string& filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger& logger)
-	: WriteOnlyGeometrySerializer(geometry_settings, settings, logger)
+GltfSerializer::GltfSerializer(const std::string& filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger* logger)
+	: WriteOnlyGeometrySerializer(geometry_settings, settings, logger_or_root(logger))
 	, filename_(filename)
 	, tmp_filename1_(filename + ".indices.tmp")
 	, tmp_filename2_(filename + ".vertices.tmp")

src/serializers/GltfSerializer.h

@@ -43,7 +43,7 @@ private:
 
 	int writeMaterial(const ifcopenshell::geometry::taxonomy::style::ptr style);
 public:
-	GltfSerializer(const std::string& filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger& logger = Logger::Root());
+	GltfSerializer(const std::string& filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger* logger = nullptr);
 	virtual ~GltfSerializer();
 	bool ready();
 	void writeHeader();

src/serializers/HdfSerializer.cpp

@@ -55,8 +55,8 @@ herr_t print_stack(hid_t /*estack*/, void*) {
 	return 0;
 }
 
-HdfSerializer::HdfSerializer(const std::string& hdf_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, bool read_only, Logger& logger)
-	: GeometrySerializer(geometry_settings, settings, logger)
+HdfSerializer::HdfSerializer(const std::string& hdf_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, bool read_only, Logger* logger)
+	: GeometrySerializer(geometry_settings, settings, logger_or_root(logger))
 	, hdf_filename(hdf_filename)
 	, settings_(settings)
 {

src/serializers/HdfSerializer.h

@@ -96,7 +96,7 @@ private:
 	void write_style(surface_style_serialization& data, const ifcopenshell::geometry::taxonomy::style::ptr& s);
 
 public:
-	HdfSerializer(const std::string& hdf_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, bool read_only=false, Logger& logger = Logger::Root());
+	HdfSerializer(const std::string& hdf_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, bool read_only=false, Logger* logger = nullptr);
 	virtual ~HdfSerializer() {}
 	bool ready();
 	void writeHeader();

src/serializers/SvgSerializer.h

@@ -596,8 +596,8 @@ protected:
 	subtract_before_project subtraction_settings_;
 
 public:
-	SvgSerializer(const stream_or_filename& out_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger& logger = Logger::Root())
-		: WriteOnlyGeometrySerializer(geometry_settings, settings, logger)
+	SvgSerializer(const stream_or_filename& out_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger* logger = nullptr)
+		: WriteOnlyGeometrySerializer(geometry_settings, settings, logger_or_root(logger))
 		, svg_file(out_filename)
 		, xmin(+std::numeric_limits<double>::infinity())
 		, ymin(+std::numeric_limits<double>::infinity())

src/serializers/TtlWktSerializer.cpp

@@ -233,8 +233,8 @@ namespace {
     }
 }
 
-TtlWktSerializer::TtlWktSerializer(const stream_or_filename& filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger& logger)
-    : WriteOnlyGeometrySerializer(geometry_settings, settings, logger)
+TtlWktSerializer::TtlWktSerializer(const stream_or_filename& filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger* logger)
+    : WriteOnlyGeometrySerializer(geometry_settings, settings, logger_or_root(logger))
     , filename_(filename)
 {
     const auto& tri_setting = geometry_settings.get<ifcopenshell::geometry::settings::TriangulationType>().get();

src/serializers/TtlWktSerializer.h

@@ -32,7 +32,7 @@ class SERIALIZERS_API TtlWktSerializer : public WriteOnlyGeometrySerializer {
 private:
 	stream_or_filename filename_;
 public:
-	TtlWktSerializer(const stream_or_filename& filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger& logger = Logger::Root());
+	TtlWktSerializer(const stream_or_filename& filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger* logger = nullptr);
 	virtual ~TtlWktSerializer() {}
 	bool ready();
 	void writeHeader();

src/serializers/WavefrontObjSerializer.cpp

@@ -27,8 +27,8 @@
 #include <boost/lexical_cast.hpp>
 #include <iomanip>
 
-WaveFrontOBJSerializer::WaveFrontOBJSerializer(const stream_or_filename& obj_filename, const stream_or_filename& mtl_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger& logger)
-	: WriteOnlyGeometrySerializer(geometry_settings, settings, logger)
+WaveFrontOBJSerializer::WaveFrontOBJSerializer(const stream_or_filename& obj_filename, const stream_or_filename& mtl_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger* logger)
+	: WriteOnlyGeometrySerializer(geometry_settings, settings, logger_or_root(logger))
 	, obj_stream(obj_filename)
 	, mtl_stream(mtl_filename)
 	, vcount_total(1)

src/serializers/WavefrontObjSerializer.h

@@ -35,7 +35,7 @@ private:
 	size_t vcount_total, ncount_total;
 	std::set<std::string> materials;
 public:
-	WaveFrontOBJSerializer(const stream_or_filename& obj_filename, const stream_or_filename& mtl_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger& logger = Logger::Root());
+	WaveFrontOBJSerializer(const stream_or_filename& obj_filename, const stream_or_filename& mtl_filename, const ifcopenshell::geometry::Settings& geometry_settings, const ifcopenshell::geometry::SerializerSettings& settings, Logger* logger = nullptr);
 	virtual ~WaveFrontOBJSerializer() {}
 	bool ready();
 	void writeHeader();

src/serializers/XmlSerializer.cpp

@@ -31,8 +31,8 @@ XmlSerializer* XmlSerializerFactory::Factory::construct(const std::string& schem
 	return it->second(file, xml_filename, logger);
 }
 
-XmlSerializer::XmlSerializer(IfcParse::IfcFile* file, const std::string& xml_filename, Logger& logger)
-	: Serializer(logger) {
+XmlSerializer::XmlSerializer(IfcParse::IfcFile* file, const std::string& xml_filename, Logger* logger)
+	: Serializer(logger_or_root(logger)) {
 	if (file) {
 		implementation_ = XmlSerializerFactory::implementations().construct(file->schema()->name(), file, xml_filename, logger_);
 	}

src/serializers/XmlSerializer.h

@@ -16,7 +16,7 @@ protected:
 	std::string xml_filename;
 
 public:
-	XmlSerializer(IfcParse::IfcFile* file, const std::string& xml_filename, Logger& logger = Logger::Root());
+	XmlSerializer(IfcParse::IfcFile* file, const std::string& xml_filename, Logger* logger = nullptr);
 
 	virtual ~XmlSerializer() {}
 

src/serializers/schema_dependent/XmlSerializer.h

@@ -40,7 +40,7 @@ private:
 
 public:
 	POSTFIX_SCHEMA(XmlSerializer)(IfcParse::IfcFile* file, const std::string& xml_filename, Logger& logger = Logger::Root())
-		: XmlSerializer(0, "", logger)
+		: XmlSerializer(0, "", &logger)
 		, mapping_(ifcopenshell::geometry::impl::mapping_implementations().construct(file, settings_, logger))
 	{
 		this->file = file;