blob: b7bbf06fc86de316256b8085055f2bda5c71fa4c [file] [log] [blame]
//===- Error.h - system_error extensions for Object -------------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// This declares a new error_category for the Object library.
#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 {
// Error code 0 is absent. Use std::error_code() instead.
arch_not_found = 1,
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> {
virtual void anchor();
static char ID;
BinaryError() {
// Default to parse_failed, can be overridden with setErrorCode.
/// 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> {
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;
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.
namespace std {
template <>
struct is_error_code_enum<llvm::object::object_error> : std::true_type {};