10 files changed, 29 insertions, 3 deletions
diff --git a/core/SCsub b/core/SCsub
index 06efc8408d..166b7083e4 100644
--- a/core/SCsub
+++ b/core/SCsub
@@ -58,6 +58,7 @@ thirdparty_misc_sources = [
     "md5.cpp",
     "pcg.cpp",
     "triangulator.cpp",
+    "clipper.cpp",
 ]
 thirdparty_misc_sources = [thirdparty_misc_dir + file for file in thirdparty_misc_sources]
 env_thirdparty.add_source_files(env.core_sources, thirdparty_misc_sources)
diff --git a/core/core_string_names.cpp b/core/core_string_names.cpp
index 1b59508abf..eeaae96754 100644
--- a/core/core_string_names.cpp
+++ b/core/core_string_names.cpp
@@ -44,6 +44,7 @@ CoreStringNames::CoreStringNames() :
 		_iter_next(StaticCString::create("_iter_next")),
 		_iter_get(StaticCString::create("_iter_get")),
 		get_rid(StaticCString::create("get_rid")),
+		_to_string(StaticCString::create("_to_string")),
 #ifdef TOOLS_ENABLED
 		_sections_unfolded(StaticCString::create("_sections_unfolded")),
 #endif
diff --git a/core/core_string_names.h b/core/core_string_names.h
index 6fea40e1b2..85f8bb7f62 100644
--- a/core/core_string_names.h
+++ b/core/core_string_names.h
@@ -62,6 +62,7 @@ public:
 	StringName _iter_next;
 	StringName _iter_get;
 	StringName get_rid;
+	StringName _to_string;
 #ifdef TOOLS_ENABLED
 	StringName _sections_unfolded;
 #endif
diff --git a/core/io/marshalls.cpp b/core/io/marshalls.cpp
index 81b3829ffc..d1b6b82cf0 100644
--- a/core/io/marshalls.cpp
+++ b/core/io/marshalls.cpp
@@ -1231,11 +1231,15 @@ Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bo
 				buf += 4;
 				PoolVector<uint8_t>::Read r = data.read();
 				copymem(buf, &r[0], datalen * datasize);
+				buf += datalen * datasize;
 			}
 
 			r_len += 4 + datalen * datasize;
-			while (r_len % 4)
+			while (r_len % 4) {
 				r_len++;
+				if (buf)
+					*(buf++) = 0;
+			}
 
 		} break;
 		case Variant::POOL_INT_ARRAY: {
diff --git a/core/object.cpp b/core/object.cpp
index 2a4ab93a6d..64f55f08a9 100644
--- a/core/object.cpp
+++ b/core/object.cpp
@@ -954,6 +954,16 @@ void Object::notification(int p_notification, bool p_reversed) {
 	}
 }
 
+String Object::to_string() {
+	if (script_instance) {
+		bool valid;
+		String ret = script_instance->to_string(&valid);
+		if (valid)
+			return ret;
+	}
+	return "[" + get_class() + ":" + itos(get_instance_id()) + "]";
+}
+
 void Object::_changed_callback(Object *p_changed, const char *p_prop) {
 }
 
@@ -1687,6 +1697,7 @@ void Object::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_property_list"), &Object::_get_property_list_bind);
 	ClassDB::bind_method(D_METHOD("get_method_list"), &Object::_get_method_list_bind);
 	ClassDB::bind_method(D_METHOD("notification", "what", "reversed"), &Object::notification, DEFVAL(false));
+	ClassDB::bind_method(D_METHOD("to_string"), &Object::to_string);
 	ClassDB::bind_method(D_METHOD("get_instance_id"), &Object::get_instance_id);
 
 	ClassDB::bind_method(D_METHOD("set_script", "script"), &Object::set_script);
@@ -1774,6 +1785,7 @@ void Object::_bind_methods() {
 
 #endif
 	BIND_VMETHOD(MethodInfo("_init"));
+	BIND_VMETHOD(MethodInfo(Variant::STRING, "_to_string"));
 
 	BIND_CONSTANT(NOTIFICATION_POSTINITIALIZE);
 	BIND_CONSTANT(NOTIFICATION_PREDELETE);
diff --git a/core/object.h b/core/object.h
index 57ebb32392..4394c1c3da 100644
--- a/core/object.h
+++ b/core/object.h
@@ -659,6 +659,7 @@ public:
 	void call_multilevel(const StringName &p_name, VARIANT_ARG_LIST); // C++ helper
 
 	void notification(int p_notification, bool p_reversed = false);
+	String to_string();
 
 	//used mainly by script, get and set all INCLUDING string
 	virtual Variant getvar(const Variant &p_key, bool *r_valid = NULL) const;
diff --git a/core/os/os.h b/core/os/os.h
index 4ae8a354e5..07865b636e 100644
--- a/core/os/os.h
+++ b/core/os/os.h
@@ -273,7 +273,7 @@ public:
 	virtual String get_environment(const String &p_var) const = 0;
 	virtual bool set_environment(const String &p_var, const String &p_value) const = 0;
 
-	virtual String get_name() = 0;
+	virtual String get_name() const = 0;
 	virtual List<String> get_cmdline_args() const { return _cmdline; }
 	virtual String get_model_name() const;
 
diff --git a/core/script_language.cpp b/core/script_language.cpp
index 4a6f904f9d..97758ced66 100644
--- a/core/script_language.cpp
+++ b/core/script_language.cpp
@@ -30,6 +30,7 @@
 
 #include "script_language.h"
 
+#include "core/core_string_names.h"
 #include "core/project_settings.h"
 
 ScriptLanguage *ScriptServer::_languages[MAX_LANGUAGES];
diff --git a/core/script_language.h b/core/script_language.h
index 005e21e2cc..b2dab666c4 100644
--- a/core/script_language.h
+++ b/core/script_language.h
@@ -173,6 +173,11 @@ public:
 	virtual void call_multilevel(const StringName &p_method, const Variant **p_args, int p_argcount);
 	virtual void call_multilevel_reversed(const StringName &p_method, const Variant **p_args, int p_argcount);
 	virtual void notification(int p_notification) = 0;
+	virtual String to_string(bool *r_valid) {
+		if (r_valid)
+			*r_valid = false;
+		return String();
+	}
 
 	//this is used by script languages that keep a reference counter of their own
 	//you can make make Ref<> not die when it reaches zero, so deleting the reference
diff --git a/core/variant.cpp b/core/variant.cpp
index 1bc3cff505..6eadf59fce 100644
--- a/core/variant.cpp
+++ b/core/variant.cpp
@@ -1601,7 +1601,7 @@ String Variant::stringify(List<const void *> &stack) const {
 					};
 				};
 #endif
-				return "[" + _get_obj().obj->get_class() + ":" + itos(_get_obj().obj->get_instance_id()) + "]";
+				return _get_obj().obj->to_string();
 			} else
 				return "[Object:null]";