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C#: Print error when MethodBind call fails

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This commit is contained in:
Raul Santos
2023-07-13 18:37:53 +02:00
parent ac5d7dc821
commit 4ff8d92ee6
3 changed files with 112 additions and 0 deletions
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85
modules/mono/mono_gd/gd_mono_internals.cpp
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@@ -139,4 +139,89 @@ void gd_unhandled_exception_event(MonoException *p_exc) {
args[0] = p_exc;
mono_runtime_invoke(unhandled_exception_method, nullptr, (void **)args, nullptr);
}
#if DEBUG_ENABLED
static String _get_var_type(const Variant *p_var) {
String basestr;
if (p_var->get_type() == Variant::OBJECT) {
Object *bobj = *p_var;
if (!bobj) {
if (p_var->is_invalid_object()) {
basestr = "previously freed instance";
} else {
basestr = "null instance";
}
} else {
if (bobj->get_script_instance()) {
basestr = bobj->get_class() + " (" + bobj->get_script_instance()->get_script()->get_path().get_file() + ")";
} else {
basestr = bobj->get_class();
}
}
} else {
basestr = Variant::get_type_name(p_var->get_type());
}
return basestr;
}
static String _get_call_where(const String &p_method, const Variant *p_instance, const Variant **argptrs, int argc) {
String methodstr = p_method;
String basestr = _get_var_type(p_instance);
if (methodstr == "call") {
if (argc >= 1) {
methodstr = String(*argptrs[0]) + " (via call)";
}
} else if (methodstr == "call_recursive" && basestr == "TreeItem") {
if (argc >= 1) {
methodstr = String(*argptrs[0]) + " (via TreeItem.call_recursive)";
}
}
return "function '" + methodstr + "' in base '" + basestr + "'";
}
static String _get_call_error(const Variant::CallError &p_err, const String &p_where, const Variant **argptrs) {
String err_text;
if (p_err.error == Variant::CallError::CALL_ERROR_INVALID_ARGUMENT) {
int errorarg = p_err.argument;
// Handle the Object to Object case separately as we don't have further class details.
#ifdef DEBUG_ENABLED
if (p_err.expected == Variant::OBJECT && argptrs[errorarg]->get_type() == p_err.expected) {
err_text = "Invalid type in " + p_where + ". The Object-derived class of argument " + itos(errorarg + 1) + " (" + _get_var_type(argptrs[errorarg]) + ") is not a subclass of the expected argument class.";
} else
#endif // DEBUG_ENABLED
{
err_text = "Invalid type in " + p_where + ". Cannot convert argument " + itos(errorarg + 1) + " from " + Variant::get_type_name(argptrs[errorarg]->get_type()) + " to " + Variant::get_type_name(p_err.expected) + ".";
}
} else if (p_err.error == Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS) {
err_text = "Invalid call to " + p_where + ". Expected " + itos(p_err.argument) + " arguments.";
} else if (p_err.error == Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS) {
err_text = "Invalid call to " + p_where + ". Expected " + itos(p_err.argument) + " arguments.";
} else if (p_err.error == Variant::CallError::CALL_ERROR_INVALID_METHOD) {
err_text = "Invalid call. Nonexistent " + p_where + ".";
} else if (p_err.error == Variant::CallError::CALL_ERROR_INSTANCE_IS_NULL) {
err_text = "Attempt to call " + p_where + " on a null instance.";
} else {
err_text = "Bug, call error: #" + itos(p_err.error);
}
return err_text;
}
void check_call_error(const String &p_method, const Variant *p_instance, const Variant **p_args, int p_arg_count, const Variant::CallError &p_error) {
if (p_error.error == Variant::CallError::CALL_OK) {
// The call was successful.
return;
}
const String &where = _get_call_where(p_method, p_instance, p_args, p_arg_count);
ERR_PRINT(_get_call_error(p_error, where, p_args));
}
#else
void check_call_error(const String &p_method, const Variant &p_instance, const Variant **p_args, int p_arg_count, const Variant::CallError &p_error) {}
#endif
} // namespace GDMonoInternals