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-rw-r--r--src/core/loader/loader.cpp52
1 files changed, 34 insertions, 18 deletions
diff --git a/src/core/loader/loader.cpp b/src/core/loader/loader.cpp
index 59ca7091a..7c48e55e1 100644
--- a/src/core/loader/loader.cpp
+++ b/src/core/loader/loader.cpp
@@ -3,8 +3,10 @@
// Refer to the license.txt file included.
#include <memory>
+#include <optional>
#include <ostream>
#include <string>
+#include "common/concepts.h"
#include "common/file_util.h"
#include "common/logging/log.h"
#include "common/string_util.h"
@@ -21,27 +23,41 @@
namespace Loader {
-FileType IdentifyFile(FileSys::VirtualFile file) {
- FileType type;
-
-#define CHECK_TYPE(loader) \
- type = AppLoader_##loader::IdentifyType(file); \
- if (FileType::Error != type) \
- return type;
+namespace {
- CHECK_TYPE(DeconstructedRomDirectory)
- CHECK_TYPE(ELF)
- CHECK_TYPE(NSO)
- CHECK_TYPE(NRO)
- CHECK_TYPE(NCA)
- CHECK_TYPE(XCI)
- CHECK_TYPE(NAX)
- CHECK_TYPE(NSP)
- CHECK_TYPE(KIP)
+template <Common::DerivedFrom<AppLoader> T>
+std::optional<FileType> IdentifyFileLoader(FileSys::VirtualFile file) {
+ const auto file_type = T::IdentifyType(file);
+ if (file_type != FileType::Error) {
+ return file_type;
+ }
+ return std::nullopt;
+}
-#undef CHECK_TYPE
+} // namespace
- return FileType::Unknown;
+FileType IdentifyFile(FileSys::VirtualFile file) {
+ if (const auto romdir_type = IdentifyFileLoader<AppLoader_DeconstructedRomDirectory>(file)) {
+ return *romdir_type;
+ } else if (const auto elf_type = IdentifyFileLoader<AppLoader_ELF>(file)) {
+ return *elf_type;
+ } else if (const auto nso_type = IdentifyFileLoader<AppLoader_NSO>(file)) {
+ return *nso_type;
+ } else if (const auto nro_type = IdentifyFileLoader<AppLoader_NRO>(file)) {
+ return *nro_type;
+ } else if (const auto nca_type = IdentifyFileLoader<AppLoader_NCA>(file)) {
+ return *nca_type;
+ } else if (const auto xci_type = IdentifyFileLoader<AppLoader_XCI>(file)) {
+ return *xci_type;
+ } else if (const auto nax_type = IdentifyFileLoader<AppLoader_NAX>(file)) {
+ return *nax_type;
+ } else if (const auto nsp_type = IdentifyFileLoader<AppLoader_NSP>(file)) {
+ return *nsp_type;
+ } else if (const auto kip_type = IdentifyFileLoader<AppLoader_KIP>(file)) {
+ return *kip_type;
+ } else {
+ return FileType::Unknown;
+ }
}
FileType GuessFromFilename(const std::string& name) {