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loader: Make IdentifyFile typesafe
Relies on #4465 for concept.h Common::IsBaseOf
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1 changed files with 32 additions and 20 deletions
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@ -3,8 +3,10 @@
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// Refer to the license.txt file included.
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#include <memory>
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#include <optional>
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#include <ostream>
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#include <string>
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#include "common/concepts.h"
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#include "common/file_util.h"
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#include "common/logging/log.h"
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#include "common/string_util.h"
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@ -21,27 +23,37 @@
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namespace Loader {
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template <Common::IsBaseOf<AppLoader> T>
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std::optional<FileType> IdentifyFileLoader(FileSys::VirtualFile file) {
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const auto file_type = T::IdentifyType(file);
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if (file_type != FileType::Error) {
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return file_type;
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}
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return std::nullopt;
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}
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FileType IdentifyFile(FileSys::VirtualFile file) {
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FileType type;
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#define CHECK_TYPE(loader) \
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type = AppLoader_##loader::IdentifyType(file); \
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if (FileType::Error != type) \
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return type;
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CHECK_TYPE(DeconstructedRomDirectory)
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CHECK_TYPE(ELF)
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CHECK_TYPE(NSO)
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CHECK_TYPE(NRO)
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CHECK_TYPE(NCA)
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CHECK_TYPE(XCI)
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CHECK_TYPE(NAX)
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CHECK_TYPE(NSP)
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CHECK_TYPE(KIP)
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#undef CHECK_TYPE
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if (const auto romdir_type = IdentifyFileLoader<AppLoader_DeconstructedRomDirectory>(file)) {
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return *romdir_type;
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} else if (const auto elf_type = IdentifyFileLoader<AppLoader_ELF>(file)) {
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return *elf_type;
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} else if (const auto nso_type = IdentifyFileLoader<AppLoader_NSO>(file)) {
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return *nso_type;
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} else if (const auto nro_type = IdentifyFileLoader<AppLoader_NRO>(file)) {
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return *nro_type;
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} else if (const auto nca_type = IdentifyFileLoader<AppLoader_NCA>(file)) {
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return *nca_type;
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} else if (const auto xci_type = IdentifyFileLoader<AppLoader_XCI>(file)) {
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return *xci_type;
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} else if (const auto nax_type = IdentifyFileLoader<AppLoader_NAX>(file)) {
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return *nax_type;
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} else if (const auto nsp_type = IdentifyFileLoader<AppLoader_NSP>(file)) {
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return *nsp_type;
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} else if (const auto kip_type = IdentifyFileLoader<AppLoader_KIP>(file)) {
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return *kip_type;
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} else {
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return FileType::Unknown;
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}
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}
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FileType GuessFromFilename(const std::string& name) {
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