diff options
Diffstat (limited to 'include/llvm/Object/Error.h')
-rw-r--r-- | include/llvm/Object/Error.h | 47 |
1 files changed, 43 insertions, 4 deletions
diff --git a/include/llvm/Object/Error.h b/include/llvm/Object/Error.h index 0f79a6ed0dd8..cd55e5dc26d7 100644 --- a/include/llvm/Object/Error.h +++ b/include/llvm/Object/Error.h @@ -14,11 +14,15 @@ #ifndef LLVM_OBJECT_ERROR_H #define LLVM_OBJECT_ERROR_H +#include "llvm/ADT/Twine.h" +#include "llvm/Support/Error.h" #include <system_error> namespace llvm { namespace object { +class Binary; + const std::error_category &object_category(); enum class object_error { @@ -30,16 +34,51 @@ enum class object_error { string_table_non_null_end, invalid_section_index, bitcode_section_not_found, - elf_invalid_dynamic_table_size, - macho_small_load_command, - macho_load_segment_too_many_sections, - macho_load_segment_too_small, }; inline std::error_code make_error_code(object_error e) { return std::error_code(static_cast<int>(e), object_category()); } +/// Base class for all errors indicating malformed binary files. +/// +/// Having a subclass for all malformed binary files allows archive-walking +/// code to skip malformed files without having to understand every possible +/// way that a binary file might be malformed. +/// +/// Currently inherits from ECError for easy interoperability with +/// std::error_code, but this will be removed in the future. +class BinaryError : public ErrorInfo<BinaryError, ECError> { +public: + static char ID; + BinaryError() { + // Default to parse_failed, can be overridden with setErrorCode. + setErrorCode(make_error_code(object_error::parse_failed)); + } +}; + +/// Generic binary error. +/// +/// For errors that don't require their own specific sub-error (most errors) +/// this class can be used to describe the error via a string message. +class GenericBinaryError : public ErrorInfo<GenericBinaryError, BinaryError> { +public: + static char ID; + GenericBinaryError(Twine Msg); + GenericBinaryError(Twine Msg, object_error ECOverride); + const std::string &getMessage() const { return Msg; } + void log(raw_ostream &OS) const override; +private: + std::string Msg; +}; + +/// isNotObjectErrorInvalidFileType() is used when looping through the children +/// of an archive after calling getAsBinary() on the child and it returns an +/// llvm::Error. In the cases we want to loop through the children and ignore the +/// non-objects in the archive this is used to test the error to see if an +/// error() function needs to called on the llvm::Error. +Error isNotObjectErrorInvalidFileType(llvm::Error Err); + } // end namespace object. } // end namespace llvm. |