[Minor] More fixes to plugin

clang-plugin/printf_check.cc

@@ -207,10 +207,12 @@ namespace rspamd {
 			case 'e':
 				return llvm::make_unique<PrintfArgChecker> (gerr_arg_handler,
 						this->pcontext, this->ci);
-			default:
-				print_warning (std::string("unknown parser flag: ") + type,
+			default: {
+				auto err_msg = std::string ("unknown parser flag: ") + type;
+				print_warning (err_msg.c_str(),
 						e, this->pcontext, this->ci);
 				break;
+				}
 			}
 
 			return nullptr;
@@ -436,7 +438,7 @@ namespace rspamd {
 										<< ", got " <<
 								(E->getNumArgs () - (pos + 1))
 										<< " args";
-						print_error (err_buf.str(), E, this->pcontext, this->ci);
+						print_error (err_buf.str().c_str(), E, this->pcontext, this->ci);
 
 						return false;
 					}
@@ -480,9 +482,9 @@ namespace rspamd {
 		auto type = arg->getType ().split ().Ty;
 
 		if (!type->isPointerType ()) {
-			print_error (
-					std::string ("bad string argument for %s: ") +
-					arg->getType ().getAsString (),
+			auto err_msg = std::string ("bad string argument for %s: ") +
+						   arg->getType ().getAsString ();
+			print_error (err_msg.c_str(),
 					arg, ctx->past, ctx->pci);
 			return false;
 		}
@@ -499,9 +501,9 @@ namespace rspamd {
 				if (desugared_type) {
 					desugared_type->dump ();
 				}
-				print_error (
-						std::string ("bad string argument for %s: ") +
-								arg->getType ().getAsString (),
+				auto err_msg = std::string ("bad string argument for %s: ") +
+							   arg->getType ().getAsString ();
+				print_error (err_msg.c_str(),
 						arg, ctx->past, ctx->pci);
 				return false;
 			}
@@ -519,9 +521,9 @@ namespace rspamd {
 		auto desugared_type = type->getUnqualifiedDesugaredType ();
 
 		if (!desugared_type->isBuiltinType ()) {
-			print_error (
-					std::string ("not a builtin type for ") + fmt + " arg: " +
-							arg->getType ().getAsString (),
+			auto err_msg = std::string ("not a builtin type for ") + fmt + " arg: " +
+						   arg->getType ().getAsString ();
+			print_error (err_msg.c_str(),
 					arg, ctx->past, ctx->pci);
 			return false;
 		}
@@ -538,10 +540,12 @@ namespace rspamd {
 		}
 
 		if (!found) {
-			print_error (
-					std::string ("bad argument for ") + fmt + " arg: " +
-					arg->getType ().getAsString () + ", resolved as: " +
-					builtin_type->getNameAsCString (ctx->past->getPrintingPolicy ()),
+			auto err_msg = std::string ("bad argument for ") +
+						   fmt + " arg: " +
+						   arg->getType ().getAsString () +
+						   ", resolved as: " +
+						   builtin_type->getNameAsCString (ctx->past->getPrintingPolicy ());
+			print_error (err_msg.c_str(),
 					arg, ctx->past, ctx->pci);
 			return false;
 		}
@@ -672,9 +676,9 @@ namespace rspamd {
 		auto type = arg->getType ().split ().Ty;
 
 		if (!type->isPointerType ()) {
-			print_error (
-					std::string ("bad pointer argument for %p: ") +
-							arg->getType ().getAsString (),
+			auto err_msg = std::string ("bad pointer argument for %p: ") +
+						   arg->getType ().getAsString ();
+			print_error (err_msg.c_str(),
 					arg, ctx->past, ctx->pci);
 			return false;
 		}
@@ -733,9 +737,9 @@ namespace rspamd {
 		auto type = arg->getType ().split ().Ty;
 
 		if (!type->isPointerType ()) {
-			print_error (
-					std::string ("bad string argument for %s: ") +
-							arg->getType ().getAsString (),
+			auto err_msg = std::string ("non pointer argument for %s: ") +
+						   arg->getType ().getAsString ();
+			print_error (err_msg.c_str(),
 					arg, ctx->past, ctx->pci);
 			return false;
 		}
@@ -744,9 +748,9 @@ namespace rspamd {
 		auto desugared_type = ptr_type->getUnqualifiedDesugaredType ();
 
 		if (!desugared_type->isRecordType ()) {
-			print_error (
-					std::string ("not a record type for ") + fmt + " arg: " +
-							arg->getType ().getAsString (),
+			auto err_msg = std::string ("not a record type for ") + fmt + " arg: " +
+						   arg->getType ().getAsString ();
+			print_error (err_msg.c_str(),
 					arg, ctx->past, ctx->pci);
 			return false;
 		}
@@ -756,9 +760,10 @@ namespace rspamd {
 		auto struct_def = struct_decl->getNameAsString ();
 
 		if (struct_def != sname) {
-			print_error (std::string ("bad argument '") + struct_def + "' for "
-					+ fmt + " arg: " +
-					arg->getType ().getAsString (),
+			auto err_msg = std::string ("bad argument '") + struct_def + "' for "
+						   + fmt + " arg: " +
+						   arg->getType ().getAsString ();
+			print_error (err_msg.c_str(),
 					arg, ctx->past, ctx->pci);
 			return false;
 		}