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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
//===- Error.cpp - system_error extensions for Object -----------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This defines a new error_category for the Object library.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/Error.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/ManagedStatic.h"
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using namespace llvm;
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using namespace object;
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namespace {
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// FIXME: This class is only here to support the transition to llvm::Error. It
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// will be removed once this transition is complete. Clients should prefer to
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// deal with the Error value directly, rather than converting to error_code.
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class _object_error_category : public std::error_category {
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public:
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const char* name() const noexcept override;
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std::string message(int ev) const override;
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};
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}
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const char *_object_error_category::name() const noexcept {
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return "llvm.object";
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}
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std::string _object_error_category::message(int EV) const {
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object_error E = static_cast<object_error>(EV);
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switch (E) {
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case object_error::arch_not_found:
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return "No object file for requested architecture";
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case object_error::invalid_file_type:
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return "The file was not recognized as a valid object file";
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case object_error::parse_failed:
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return "Invalid data was encountered while parsing the file";
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case object_error::unexpected_eof:
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return "The end of the file was unexpectedly encountered";
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case object_error::string_table_non_null_end:
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return "String table must end with a null terminator";
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case object_error::invalid_section_index:
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return "Invalid section index";
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case object_error::bitcode_section_not_found:
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return "Bitcode section not found in object file";
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case object_error::invalid_symbol_index:
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return "Invalid symbol index";
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}
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llvm_unreachable("An enumerator of object_error does not have a message "
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"defined.");
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}
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void BinaryError::anchor() {}
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char BinaryError::ID = 0;
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char GenericBinaryError::ID = 0;
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GenericBinaryError::GenericBinaryError(Twine Msg) : Msg(Msg.str()) {}
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GenericBinaryError::GenericBinaryError(Twine Msg, object_error ECOverride)
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: Msg(Msg.str()) {
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setErrorCode(make_error_code(ECOverride));
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}
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void GenericBinaryError::log(raw_ostream &OS) const {
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OS << Msg;
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}
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static ManagedStatic<_object_error_category> error_category;
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const std::error_category &object::object_category() {
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return *error_category;
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}
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llvm::Error llvm::object::isNotObjectErrorInvalidFileType(llvm::Error Err) {
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if (auto Err2 =
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handleErrors(std::move(Err), [](std::unique_ptr<ECError> M) -> Error {
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// Try to handle 'M'. If successful, return a success value from
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// the handler.
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if (M->convertToErrorCode() == object_error::invalid_file_type)
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return Error::success();
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// We failed to handle 'M' - return it from the handler.
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// This value will be passed back from catchErrors and
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// wind up in Err2, where it will be returned from this function.
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return Error(std::move(M));
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}))
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return Err2;
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return Err;
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}
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