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authorDanil Alexeev <danil@alexeev.xyz>2023-09-22 10:10:22 +0300
committerDanil Alexeev <danil@alexeev.xyz>2023-09-22 17:30:00 +0300
commit10b00bc2eaa5d6e49ed68eb5eb832abfdeff5f1a (patch)
tree2bb1dd0056fe26cfff5bb32cc9a620ebb75be22e /modules/gdscript/gdscript_analyzer.cpp
parentfe5b1c8d49313d63fbe91cb7cdf463e10fb86afa (diff)
downloadredot-engine-10b00bc2eaa5d6e49ed68eb5eb832abfdeff5f1a.tar.gz
GDScript: Prevent constructing and inheriting engine singletons
Diffstat (limited to 'modules/gdscript/gdscript_analyzer.cpp')
-rw-r--r--modules/gdscript/gdscript_analyzer.cpp10
1 files changed, 10 insertions, 0 deletions
diff --git a/modules/gdscript/gdscript_analyzer.cpp b/modules/gdscript/gdscript_analyzer.cpp
index 04c86d60a8..92050154b5 100644
--- a/modules/gdscript/gdscript_analyzer.cpp
+++ b/modules/gdscript/gdscript_analyzer.cpp
@@ -459,6 +459,10 @@ Error GDScriptAnalyzer::resolve_class_inheritance(GDScriptParser::ClassNode *p_c
}
base = info_parser->get_parser()->head->get_datatype();
} else if (class_exists(name)) {
+ if (Engine::get_singleton()->has_singleton(name)) {
+ push_error(vformat(R"(Cannot inherit native class "%s" because it is an engine singleton.)", name), id);
+ return ERR_PARSE_ERROR;
+ }
base.kind = GDScriptParser::DataType::NATIVE;
base.native_type = name;
} else {
@@ -3203,6 +3207,12 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a
bool is_constructor = (base_type.is_meta_type || (p_call->callee && p_call->callee->type == GDScriptParser::Node::IDENTIFIER)) && p_call->function_name == SNAME("new");
+ if (is_constructor && Engine::get_singleton()->has_singleton(base_type.native_type)) {
+ push_error(vformat(R"(Cannot construct native class "%s" because it is an engine singleton.)", base_type.native_type), p_call);
+ p_call->set_datatype(call_type);
+ return;
+ }
+
if (get_function_signature(p_call, is_constructor, base_type, p_call->function_name, return_type, par_types, default_arg_count, method_flags)) {
// If the method is implemented in the class hierarchy, the virtual flag will not be set for that MethodInfo and the search stops there.
// Virtual check only possible for super() calls because class hierarchy is known. Node/Objects may have scripts attached we don't know of at compile-time.