Mono: Add option to keep running after unhandled exceptions

By default, an unhandled exception will cause the application to be terminated; but the project setting `mono/unhandled_exception_policy` was added to change this behaviour.
The editor is hard-coded to never terminate because of unhandled exceptions, as that would make writing editor plugins a painful task, and we cannot kill the editor because of a mistake in a thirdparty plugin.

1 files changed, 12 insertions, 1 deletions

diff --git a/modules/mono/mono_gd/gd_mono.h b/modules/mono/mono_gd/gd_mono.h
index deebe5fd50..c5bcce4fa1 100644
--- a/modules/mono/mono_gd/gd_mono.h
+++ b/modules/mono/mono_gd/gd_mono.h
@@ -80,6 +80,13 @@ String to_string(Type p_type);
 
 class GDMono {
 
+public:
+	enum UnhandledExceptionPolicy {
+		POLICY_TERMINATE_APP,
+		POLICY_LOG_ERROR
+	};
+
+private:
 	bool runtime_initialized;
 	bool finalizing_scripts_domain;
 
@@ -102,6 +109,8 @@ class GDMono {
 
 	HashMap<uint32_t, HashMap<String, GDMonoAssembly *> > assemblies;
 
+	UnhandledExceptionPolicy unhandled_exception_policy;
+
 	void _domain_assemblies_cleanup(uint32_t p_domain_id);
 
 	bool _are_api_assemblies_out_of_sync();
@@ -162,7 +171,9 @@ public:
 
 	static GDMono *get_singleton() { return singleton; }
 
-	static void unhandled_exception_hook(MonoObject *p_exc, void *p_user_data);
+	GD_NORETURN static void unhandled_exception_hook(MonoObject *p_exc, void *p_user_data);
+
+	UnhandledExceptionPolicy get_unhandled_exception_policy() const { return unhandled_exception_policy; }
 
 	// Do not use these, unless you know what you're doing
 	void add_assembly(uint32_t p_domain_id, GDMonoAssembly *p_assembly);