Remove underscore hacks

Way less cruft. :)

Co-authored-by: Ignacio Roldán Etcheverry <neikeq@users.noreply.github.com>

12 files changed, 38 insertions, 132 deletions

diff --git a/doc/tools/makerst.py b/doc/tools/makerst.py
index 6f9a07af1f..4691b61e1b 100755
--- a/doc/tools/makerst.py
+++ b/doc/tools/makerst.py
@@ -1031,9 +1031,6 @@ def make_enum(t, state):  # type: (str, State) -> str
         if c in state.classes and e not in state.classes[c].enums:
             c = "@GlobalScope"
 
-    if not c in state.classes and c.startswith("_"):
-        c = c[1:]  # Remove the underscore prefix
-
     if c in state.classes and e in state.classes[c].enums:
         return ":ref:`{0}<enum_{1}_{0}>`".format(e, c)
 
diff --git a/editor/doc_tools.cpp b/editor/doc_tools.cpp
index 56a9d2c258..8d1c22dabd 100644
--- a/editor/doc_tools.cpp
+++ b/editor/doc_tools.cpp
@@ -245,9 +245,6 @@ void DocTools::generate(bool p_basic_types) {
 		}
 
 		String cname = name;
-		if (cname.begins_with("_")) { //proxy class
-			cname = cname.substr(1, name.length());
-		}
 
 		class_list[cname] = DocData::ClassDoc();
 		DocData::ClassDoc &c = class_list[cname];
@@ -740,9 +737,6 @@ void DocTools::generate(bool p_basic_types) {
 			while (String(ClassDB::get_parent_class(pd.type)) != "Object") {
 				pd.type = ClassDB::get_parent_class(pd.type);
 			}
-			if (pd.type.begins_with("_")) {
-				pd.type = pd.type.substr(1, pd.type.length());
-			}
 			c.properties.push_back(pd);
 		}
 
diff --git a/editor/plugins/script_editor_plugin.cpp b/editor/plugins/script_editor_plugin.cpp
index 226a54b966..6793805152 100644
--- a/editor/plugins/script_editor_plugin.cpp
+++ b/editor/plugins/script_editor_plugin.cpp
@@ -104,11 +104,7 @@ void EditorStandardSyntaxHighlighter::_update_cache() {
 	List<StringName> types;
 	ClassDB::get_class_list(&types);
 	for (const StringName &E : types) {
-		String n = E;
-		if (n.begins_with("_")) {
-			n = n.substr(1, n.length());
-		}
-		highlighter->add_keyword_color(n, type_color);
+		highlighter->add_keyword_color(E, type_color);
 	}
 
 	/* User types. */
diff --git a/editor/plugins/script_text_editor.cpp b/editor/plugins/script_text_editor.cpp
index 4491c13b4c..aa9c617c5b 100644
--- a/editor/plugins/script_text_editor.cpp
+++ b/editor/plugins/script_text_editor.cpp
@@ -756,8 +756,6 @@ void ScriptTextEditor::_lookup_symbol(const String &p_symbol, int p_row, int p_c
 	} else if (script->get_language()->lookup_code(code_editor->get_text_editor()->get_text_for_symbol_lookup(), p_symbol, script->get_path(), base, result) == OK) {
 		_goto_line(p_row);
 
-		result.class_name = result.class_name.trim_prefix("_");
-
 		switch (result.type) {
 			case ScriptLanguage::LookupResult::RESULT_SCRIPT_LOCATION: {
 				if (result.script.is_valid()) {
diff --git a/modules/gdnative/nativescript/api_generator.cpp b/modules/gdnative/nativescript/api_generator.cpp
index df0f29277e..2d9b45cb07 100644
--- a/modules/gdnative/nativescript/api_generator.cpp
+++ b/modules/gdnative/nativescript/api_generator.cpp
@@ -242,13 +242,9 @@ List<ClassAPI> generate_c_api_classes() {
 		class_api.class_name = class_name;
 		class_api.super_class_name = ClassDB::get_parent_class(class_name);
 		{
-			String name = class_name;
-			if (name.begins_with("_")) {
-				name.remove(0);
-			}
-			class_api.is_singleton = Engine::get_singleton()->has_singleton(name);
+			class_api.is_singleton = Engine::get_singleton()->has_singleton(class_name);
 			if (class_api.is_singleton) {
-				class_api.singleton_name = name;
+				class_api.singleton_name = class_name;
 			}
 		}
 		class_api.is_instantiable = !class_api.is_singleton && ClassDB::can_instantiate(class_name);
diff --git a/modules/gdscript/editor/gdscript_highlighter.cpp b/modules/gdscript/editor/gdscript_highlighter.cpp
index 3441233811..0b1cb5d502 100644
--- a/modules/gdscript/editor/gdscript_highlighter.cpp
+++ b/modules/gdscript/editor/gdscript_highlighter.cpp
@@ -459,11 +459,7 @@ void GDScriptSyntaxHighlighter::_update_cache() {
 	List<StringName> types;
 	ClassDB::get_class_list(&types);
 	for (const StringName &E : types) {
-		String n = E;
-		if (n.begins_with("_")) {
-			n = n.substr(1, n.length());
-		}
-		keywords[n] = types_color;
+		keywords[E] = types_color;
 	}
 
 	/* User types. */
diff --git a/modules/gdscript/gdscript.cpp b/modules/gdscript/gdscript.cpp
index 8957b00a1b..4589cf1a36 100644
--- a/modules/gdscript/gdscript.cpp
+++ b/modules/gdscript/gdscript.cpp
@@ -1644,16 +1644,11 @@ void GDScriptLanguage::init() {
 	List<StringName> class_list;
 	ClassDB::get_class_list(&class_list);
 	for (const StringName &n : class_list) {
-		String s = String(n);
-		if (s.begins_with("_")) {
-			s = s.substr(1, s.length());
-		}
-
-		if (globals.has(s)) {
+		if (globals.has(n)) {
 			continue;
 		}
 		Ref<GDScriptNativeClass> nc = memnew(GDScriptNativeClass(n));
-		_add_global(s, nc);
+		_add_global(n, nc);
 	}
 
 	//populate singletons
diff --git a/modules/gdscript/gdscript_analyzer.cpp b/modules/gdscript/gdscript_analyzer.cpp
index ab37e54cf1..e925350ba3 100644
--- a/modules/gdscript/gdscript_analyzer.cpp
+++ b/modules/gdscript/gdscript_analyzer.cpp
@@ -112,11 +112,10 @@ static GDScriptParser::DataType make_native_enum_type(const StringName &p_native
 	type.is_meta_type = true;
 
 	List<StringName> enum_values;
-	StringName real_native_name = GDScriptParser::get_real_class_name(p_native_class);
-	ClassDB::get_enum_constants(real_native_name, p_enum_name, &enum_values);
+	ClassDB::get_enum_constants(p_native_class, p_enum_name, &enum_values);
 
 	for (const StringName &E : enum_values) {
-		type.enum_values[E] = ClassDB::get_integer_constant(real_native_name, E);
+		type.enum_values[E] = ClassDB::get_integer_constant(p_native_class, E);
 	}
 
 	return type;
@@ -229,7 +228,7 @@ Error GDScriptAnalyzer::resolve_inheritance(GDScriptParser::ClassNode *p_class,
 					push_error(vformat(R"(Could not resolve super class inheritance from "%s".)", name), p_class);
 					return err;
 				}
-			} else if (class_exists(name) && ClassDB::can_instantiate(GDScriptParser::get_real_class_name(name))) {
+			} else if (class_exists(name) && ClassDB::can_instantiate(name)) {
 				base.kind = GDScriptParser::DataType::NATIVE;
 				base.native_type = name;
 			} else {
@@ -406,7 +405,7 @@ GDScriptParser::DataType GDScriptAnalyzer::resolve_datatype(GDScriptParser::Type
 			return GDScriptParser::DataType();
 		}
 		result = ref->get_parser()->head->get_datatype();
-	} else if (ClassDB::has_enum(GDScriptParser::get_real_class_name(parser->current_class->base_type.native_type), first)) {
+	} else if (ClassDB::has_enum(parser->current_class->base_type.native_type, first)) {
 		// Native enum in current class.
 		result = make_native_enum_type(parser->current_class->base_type.native_type, first);
 	} else {
@@ -469,7 +468,7 @@ GDScriptParser::DataType GDScriptAnalyzer::resolve_datatype(GDScriptParser::Type
 			}
 		} else if (result.kind == GDScriptParser::DataType::NATIVE) {
 			// Only enums allowed for native.
-			if (ClassDB::has_enum(GDScriptParser::get_real_class_name(result.native_type), p_type->type_chain[1]->name)) {
+			if (ClassDB::has_enum(result.native_type, p_type->type_chain[1]->name)) {
 				if (p_type->type_chain.size() > 2) {
 					push_error(R"(Enums cannot contain nested types.)", p_type->type_chain[2]);
 				} else {
@@ -2252,7 +2251,7 @@ void GDScriptAnalyzer::reduce_get_node(GDScriptParser::GetNodeNode *p_get_node)
 	result.native_type = "Node";
 	result.builtin_type = Variant::OBJECT;
 
-	if (!ClassDB::is_parent_class(GDScriptParser::get_real_class_name(parser->current_class->base_type.native_type), result.native_type)) {
+	if (!ClassDB::is_parent_class(parser->current_class->base_type.native_type, result.native_type)) {
 		push_error(R"*(Cannot use shorthand "get_node()" notation ("$") on a class that isn't a node.)*", p_get_node);
 	} else if (!lambda_stack.is_empty()) {
 		push_error(R"*(Cannot use shorthand "get_node()" notation ("$") inside a lambda. Use a captured variable instead.)*", p_get_node);
@@ -2421,7 +2420,7 @@ void GDScriptAnalyzer::reduce_identifier_from_base(GDScriptParser::IdentifierNod
 	}
 
 	// Check native members.
-	const StringName &native = GDScriptParser::get_real_class_name(base.native_type);
+	const StringName &native = base.native_type;
 
 	if (class_exists(native)) {
 		PropertyInfo prop_info;
@@ -3303,10 +3302,8 @@ bool GDScriptAnalyzer::get_function_signature(GDScriptParser::Node *p_source, GD
 		return true;
 	}
 
-	StringName real_native = GDScriptParser::get_real_class_name(base_native);
-
 	MethodInfo info;
-	if (ClassDB::get_method_info(real_native, function_name, &info)) {
+	if (ClassDB::get_method_info(base_native, function_name, &info)) {
 		return function_signature_from_info(info, r_return_type, r_par_types, r_default_arg_count, r_static, r_vararg);
 	}
 
@@ -3398,24 +3395,23 @@ bool GDScriptAnalyzer::is_shadowing(GDScriptParser::IdentifierNode *p_local, con
 
 	StringName parent = base_native;
 	while (parent != StringName()) {
-		StringName real_class_name = GDScriptParser::get_real_class_name(parent);
-		if (ClassDB::has_method(real_class_name, name, true)) {
+		if (ClassDB::has_method(parent, name, true)) {
 			parser->push_warning(p_local, GDScriptWarning::SHADOWED_VARIABLE_BASE_CLASS, p_context, p_local->name, "method", parent);
 			return true;
-		} else if (ClassDB::has_signal(real_class_name, name, true)) {
+		} else if (ClassDB::has_signal(parent, name, true)) {
 			parser->push_warning(p_local, GDScriptWarning::SHADOWED_VARIABLE_BASE_CLASS, p_context, p_local->name, "signal", parent);
 			return true;
-		} else if (ClassDB::has_property(real_class_name, name, true)) {
+		} else if (ClassDB::has_property(parent, name, true)) {
 			parser->push_warning(p_local, GDScriptWarning::SHADOWED_VARIABLE_BASE_CLASS, p_context, p_local->name, "property", parent);
 			return true;
-		} else if (ClassDB::has_integer_constant(real_class_name, name, true)) {
+		} else if (ClassDB::has_integer_constant(parent, name, true)) {
 			parser->push_warning(p_local, GDScriptWarning::SHADOWED_VARIABLE_BASE_CLASS, p_context, p_local->name, "constant", parent);
 			return true;
-		} else if (ClassDB::has_enum(real_class_name, name, true)) {
+		} else if (ClassDB::has_enum(parent, name, true)) {
 			parser->push_warning(p_local, GDScriptWarning::SHADOWED_VARIABLE_BASE_CLASS, p_context, p_local->name, "enum", parent);
 			return true;
 		}
-		parent = ClassDB::get_parent_class(real_class_name);
+		parent = ClassDB::get_parent_class(parent);
 	}
 
 	return false;
@@ -3560,16 +3556,12 @@ bool GDScriptAnalyzer::is_type_compatible(const GDScriptParser::DataType &p_targ
 			break; // Already solved before.
 	}
 
-	// Get underscore-prefixed version for some classes.
-	src_native = GDScriptParser::get_real_class_name(src_native);
-
 	switch (p_target.kind) {
 		case GDScriptParser::DataType::NATIVE: {
 			if (p_target.is_meta_type) {
 				return ClassDB::is_parent_class(src_native, GDScriptNativeClass::get_class_static());
 			}
-			StringName tgt_native = GDScriptParser::get_real_class_name(p_target.native_type);
-			return ClassDB::is_parent_class(src_native, tgt_native);
+			return ClassDB::is_parent_class(src_native, p_target.native_type);
 		}
 		case GDScriptParser::DataType::SCRIPT:
 			if (p_target.is_meta_type) {
@@ -3618,8 +3610,7 @@ void GDScriptAnalyzer::mark_node_unsafe(const GDScriptParser::Node *p_node) {
 }
 
 bool GDScriptAnalyzer::class_exists(const StringName &p_class) const {
-	StringName real_name = GDScriptParser::get_real_class_name(p_class);
-	return ClassDB::class_exists(real_name) && ClassDB::is_class_exposed(real_name);
+	return ClassDB::class_exists(p_class) && ClassDB::is_class_exposed(p_class);
 }
 
 Ref<GDScriptParserRef> GDScriptAnalyzer::get_parser_for(const String &p_path) {
diff --git a/modules/gdscript/gdscript_editor.cpp b/modules/gdscript/gdscript_editor.cpp
index 73661855b4..372a726d71 100644
--- a/modules/gdscript/gdscript_editor.cpp
+++ b/modules/gdscript/gdscript_editor.cpp
@@ -912,7 +912,7 @@ static void _find_identifiers_in_base(const GDScriptCompletionIdentifier &p_base
 				}
 			} break;
 			case GDScriptParser::DataType::NATIVE: {
-				StringName type = GDScriptParser::get_real_class_name(base_type.native_type);
+				StringName type = base_type.native_type;
 				if (!ClassDB::class_exists(type)) {
 					return;
 				}
@@ -1326,10 +1326,7 @@ static bool _guess_expression_type(GDScriptParser::CompletionContext &p_context,
 									native_type.kind = GDScriptParser::DataType::NATIVE;
 									native_type.native_type = native_type.script_type->get_instance_base_type();
 									if (!ClassDB::class_exists(native_type.native_type)) {
-										native_type.native_type = String("_") + native_type.native_type;
-										if (!ClassDB::class_exists(native_type.native_type)) {
-											native_type.kind = GDScriptParser::DataType::UNRESOLVED;
-										}
+										native_type.kind = GDScriptParser::DataType::UNRESOLVED;
 									}
 								}
 							}
@@ -1765,9 +1762,8 @@ static bool _guess_identifier_type(GDScriptParser::CompletionContext &p_context,
 						base_type = GDScriptParser::DataType();
 						break;
 					}
-					StringName real_native = GDScriptParser::get_real_class_name(base_type.native_type);
 					MethodInfo info;
-					if (ClassDB::get_method_info(real_native, p_context.current_function->identifier->name, &info)) {
+					if (ClassDB::get_method_info(base_type.native_type, p_context.current_function->identifier->name, &info)) {
 						for (const PropertyInfo &E : info.arguments) {
 							if (E.name == p_identifier) {
 								r_type = _type_from_property(E);
@@ -1836,13 +1832,12 @@ static bool _guess_identifier_type(GDScriptParser::CompletionContext &p_context,
 	}
 
 	// Check ClassDB.
-	StringName class_name = GDScriptParser::get_real_class_name(p_identifier);
-	if (ClassDB::class_exists(class_name) && ClassDB::is_class_exposed(class_name)) {
+	if (ClassDB::class_exists(p_identifier) && ClassDB::is_class_exposed(p_identifier)) {
 		r_type.type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT;
 		r_type.type.kind = GDScriptParser::DataType::NATIVE;
 		r_type.type.native_type = p_identifier;
 		r_type.type.is_constant = true;
-		r_type.type.is_meta_type = !Engine::get_singleton()->has_singleton(class_name);
+		r_type.type.is_meta_type = !Engine::get_singleton()->has_singleton(p_identifier);
 		r_type.value = Variant();
 	}
 
@@ -1951,7 +1946,7 @@ static bool _guess_identifier_type_from_base(GDScriptParser::CompletionContext &
 				}
 			} break;
 			case GDScriptParser::DataType::NATIVE: {
-				StringName class_name = GDScriptParser::get_real_class_name(base_type.native_type);
+				StringName class_name = base_type.native_type;
 				if (!ClassDB::class_exists(class_name)) {
 					return false;
 				}
@@ -2113,11 +2108,10 @@ static bool _guess_method_return_type_from_base(GDScriptParser::CompletionContex
 				}
 			} break;
 			case GDScriptParser::DataType::NATIVE: {
-				StringName native = GDScriptParser::get_real_class_name(base_type.native_type);
-				if (!ClassDB::class_exists(native)) {
+				if (!ClassDB::class_exists(base_type.native_type)) {
 					return false;
 				}
-				MethodBind *mb = ClassDB::get_method(native, p_method);
+				MethodBind *mb = ClassDB::get_method(base_type.native_type, p_method);
 				if (mb) {
 					r_type = _type_from_property(mb->get_return_info());
 					return true;
@@ -2209,7 +2203,7 @@ static void _find_call_arguments(GDScriptParser::CompletionContext &p_context, c
 				base_type = base_type.class_type->base_type;
 			} break;
 			case GDScriptParser::DataType::NATIVE: {
-				StringName class_name = GDScriptParser::get_real_class_name(base_type.native_type);
+				StringName class_name = base_type.native_type;
 				if (!ClassDB::class_exists(class_name)) {
 					base_type.kind = GDScriptParser::DataType::UNRESOLVED;
 					break;
@@ -2592,7 +2586,7 @@ static void _find_call_arguments(GDScriptParser::CompletionContext &p_context, c
 				break;
 			}
 
-			StringName class_name = GDScriptParser::get_real_class_name(native_type.native_type);
+			StringName class_name = native_type.native_type;
 			if (!ClassDB::class_exists(class_name)) {
 				break;
 			}
@@ -2821,7 +2815,7 @@ static Error _lookup_symbol_from_base(const GDScriptParser::DataType &p_base, co
 				}
 			} break;
 			case GDScriptParser::DataType::NATIVE: {
-				StringName class_name = GDScriptParser::get_real_class_name(base_type.native_type);
+				StringName class_name = base_type.native_type;
 				if (!ClassDB::class_exists(class_name)) {
 					base_type.kind = GDScriptParser::DataType::UNRESOLVED;
 					break;
@@ -2873,11 +2867,7 @@ static Error _lookup_symbol_from_base(const GDScriptParser::DataType &p_base, co
 
 				StringName parent = ClassDB::get_parent_class(class_name);
 				if (parent != StringName()) {
-					if (String(parent).begins_with("_")) {
-						base_type.native_type = String(parent).substr(1);
-					} else {
-						base_type.native_type = parent;
-					}
+					base_type.native_type = parent;
 				} else {
 					base_type.kind = GDScriptParser::DataType::UNRESOLVED;
 				}
@@ -2931,18 +2921,11 @@ static Error _lookup_symbol_from_base(const GDScriptParser::DataType &p_base, co
 }
 
 ::Error GDScriptLanguage::lookup_code(const String &p_code, const String &p_symbol, const String &p_path, Object *p_owner, LookupResult &r_result) {
-	//before parsing, try the usual stuff
+	// Before parsing, try the usual stuff
 	if (ClassDB::class_exists(p_symbol)) {
 		r_result.type = ScriptLanguage::LookupResult::RESULT_CLASS;
 		r_result.class_name = p_symbol;
 		return OK;
-	} else {
-		String under_prefix = "_" + p_symbol;
-		if (ClassDB::class_exists(under_prefix)) {
-			r_result.type = ScriptLanguage::LookupResult::RESULT_CLASS;
-			r_result.class_name = p_symbol;
-			return OK;
-		}
 	}
 
 	for (int i = 0; i < Variant::VARIANT_MAX; i++) {
diff --git a/modules/gdscript/gdscript_function.h b/modules/gdscript/gdscript_function.h
index 9e5ef0f632..87d8c03494 100644
--- a/modules/gdscript/gdscript_function.h
+++ b/modules/gdscript/gdscript_function.h
@@ -111,11 +111,7 @@ public:
 				}
 
 				if (!ClassDB::is_parent_class(obj->get_class_name(), native_type)) {
-					// Try with underscore prefix
-					StringName underscore_native_type = "_" + native_type;
-					if (!ClassDB::is_parent_class(obj->get_class_name(), underscore_native_type)) {
-						return false;
-					}
+					return false;
 				}
 				return true;
 			} break;
diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp
index 8c3bb1ea57..d21caf4389 100644
--- a/modules/gdscript/gdscript_parser.cpp
+++ b/modules/gdscript/gdscript_parser.cpp
@@ -94,43 +94,8 @@ Variant::Type GDScriptParser::get_builtin_type(const StringName &p_type) {
 	return Variant::VARIANT_MAX;
 }
 
-// TODO: Move this to a central location (maybe core?).
-static HashMap<StringName, StringName> underscore_map;
-static const char *underscore_classes[] = {
-	"ClassDB",
-	"Directory",
-	"Engine",
-	"File",
-	"Geometry",
-	"GodotSharp",
-	"JSON",
-	"Marshalls",
-	"Mutex",
-	"OS",
-	"ResourceLoader",
-	"ResourceSaver",
-	"Semaphore",
-	"Thread",
-	"VisualScriptEditor",
-	nullptr,
-};
-StringName GDScriptParser::get_real_class_name(const StringName &p_source) {
-	if (underscore_map.is_empty()) {
-		const char **class_name = underscore_classes;
-		while (*class_name != nullptr) {
-			underscore_map[*class_name] = String("_") + *class_name;
-			class_name++;
-		}
-	}
-	if (underscore_map.has(p_source)) {
-		return underscore_map[p_source];
-	}
-	return p_source;
-}
-
 void GDScriptParser::cleanup() {
 	builtin_types.clear();
-	underscore_map.clear();
 }
 
 void GDScriptParser::get_annotation_list(List<MethodInfo> *r_annotations) const {
@@ -3363,10 +3328,10 @@ bool GDScriptParser::export_annotations(const AnnotationNode *p_annotation, Node
 				variable->export_info.hint_string = Variant::get_type_name(export_type.builtin_type);
 				break;
 			case GDScriptParser::DataType::NATIVE:
-				if (ClassDB::is_parent_class(get_real_class_name(export_type.native_type), "Resource")) {
+				if (ClassDB::is_parent_class(export_type.native_type, "Resource")) {
 					variable->export_info.type = Variant::OBJECT;
 					variable->export_info.hint = PROPERTY_HINT_RESOURCE_TYPE;
-					variable->export_info.hint_string = get_real_class_name(export_type.native_type);
+					variable->export_info.hint_string = export_type.native_type;
 				} else {
 					push_error(R"(Export type can only be built-in, a resource, or an enum.)", variable);
 					return false;
diff --git a/modules/gdscript/gdscript_parser.h b/modules/gdscript/gdscript_parser.h
index 6a227a55e5..0bce8d7ddd 100644
--- a/modules/gdscript/gdscript_parser.h
+++ b/modules/gdscript/gdscript_parser.h
@@ -1399,7 +1399,6 @@ public:
 	ClassNode *get_tree() const { return head; }
 	bool is_tool() const { return _is_tool; }
 	static Variant::Type get_builtin_type(const StringName &p_type);
-	static StringName get_real_class_name(const StringName &p_source);
 
 	CompletionContext get_completion_context() const { return completion_context; }
 	CompletionCall get_completion_call() const { return completion_call; }