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archived-llvm/include/llvm/DebugInfo/CodeView/CodeViewError.h
Alexandre Ganea 0444f57668 [DebugInfo] Common behavior for error types
Following D50807, and heading towards D50664, this intermediary change does the following:

1. Upgrade all custom Error types in llvm/trunk/lib/DebugInfo/ to use the new StringError behavior (D50807).
2. Implement std::is_error_code_enum and make_error_code() for DebugInfo error enumerations.
3. Rename GenericError -> PDBError (the file will be renamed in a subsequent commit)
4. Update custom error messages to follow the same formatting: (\w\s*)+\.
5. Keep generic "file not found" (ENOENT) errors as they are in PDB code. Previously, there used to be a custom enumeration for that purpose.
6. Remove a few extraneous LF in log() implementations. Printing LF is a responsability at a higher level, not at the error level.

Differential Revision: https://reviews.llvm.org/D51499

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@341228 91177308-0d34-0410-b5e6-96231b3b80d8
2018-08-31 17:41:58 +00:00

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//===- CodeViewError.h - Error extensions for CodeView ----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_DEBUGINFO_PDB_CODEVIEW_CODEVIEWERROR_H
#define LLVM_DEBUGINFO_PDB_CODEVIEW_CODEVIEWERROR_H
#include "llvm/Support/Error.h"
#include <string>
namespace llvm {
namespace codeview {
enum class cv_error_code {
unspecified = 1,
insufficient_buffer,
operation_unsupported,
corrupt_record,
no_records,
unknown_member_record,
};
} // namespace codeview
} // namespace llvm
namespace std {
template <>
struct is_error_code_enum<llvm::codeview::cv_error_code> : std::true_type {};
} // namespace std
namespace llvm {
namespace codeview {
const std::error_category &CVErrorCategory();
inline std::error_code make_error_code(cv_error_code E) {
return std::error_code(static_cast<int>(E), CVErrorCategory());
}
/// Base class for errors originating when parsing raw PDB files
class CodeViewError : public ErrorInfo<CodeViewError, StringError> {
public:
using ErrorInfo<CodeViewError,
StringError>::ErrorInfo; // inherit constructors
CodeViewError(const Twine &S) : ErrorInfo(S, cv_error_code::unspecified) {}
static char ID;
};
} // namespace codeview
} // namespace llvm
#endif