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-rw-r--r--include/clang/Frontend/SerializedDiagnosticReader.h131
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diff --git a/include/clang/Frontend/SerializedDiagnosticReader.h b/include/clang/Frontend/SerializedDiagnosticReader.h
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--- a/include/clang/Frontend/SerializedDiagnosticReader.h
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-//===--- SerializedDiagnosticReader.h - Reads diagnostics -------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CLANG_FRONTEND_SERIALIZED_DIAGNOSTIC_READER_H_
-#define LLVM_CLANG_FRONTEND_SERIALIZED_DIAGNOSTIC_READER_H_
-
-#include "clang/Basic/LLVM.h"
-#include "llvm/ADT/ArrayRef.h"
-#include "llvm/Bitcode/BitstreamReader.h"
-#include "llvm/Support/ErrorOr.h"
-
-namespace clang {
-namespace serialized_diags {
-
-enum class SDError {
- CouldNotLoad = 1,
- InvalidSignature,
- InvalidDiagnostics,
- MalformedTopLevelBlock,
- MalformedSubBlock,
- MalformedBlockInfoBlock,
- MalformedMetadataBlock,
- MalformedDiagnosticBlock,
- MalformedDiagnosticRecord,
- MissingVersion,
- VersionMismatch,
- UnsupportedConstruct,
- /// A generic error for subclass handlers that don't want or need to define
- /// their own error_category.
- HandlerFailed
-};
-
-const std::error_category &SDErrorCategory();
-
-inline std::error_code make_error_code(SDError E) {
- return std::error_code(static_cast<int>(E), SDErrorCategory());
-}
-
-/// \brief A location that is represented in the serialized diagnostics.
-struct Location {
- unsigned FileID;
- unsigned Line;
- unsigned Col;
- unsigned Offset;
- Location(unsigned FileID, unsigned Line, unsigned Col, unsigned Offset)
- : FileID(FileID), Line(Line), Col(Col), Offset(Offset) {}
-};
-
-/// \brief A base class that handles reading serialized diagnostics from a file.
-///
-/// Subclasses should override the visit* methods with their logic for handling
-/// the various constructs that are found in serialized diagnostics.
-class SerializedDiagnosticReader {
-public:
- SerializedDiagnosticReader() {}
- virtual ~SerializedDiagnosticReader() {}
-
- /// \brief Read the diagnostics in \c File
- std::error_code readDiagnostics(StringRef File);
-
-private:
- enum class Cursor;
-
- /// \brief Read to the next record or block to process.
- llvm::ErrorOr<Cursor> skipUntilRecordOrBlock(llvm::BitstreamCursor &Stream,
- unsigned &BlockOrRecordId);
-
- /// \brief Read a metadata block from \c Stream.
- std::error_code readMetaBlock(llvm::BitstreamCursor &Stream);
-
- /// \brief Read a diagnostic block from \c Stream.
- std::error_code readDiagnosticBlock(llvm::BitstreamCursor &Stream);
-
-protected:
- /// \brief Visit the start of a diagnostic block.
- virtual std::error_code visitStartOfDiagnostic() {
- return std::error_code();
- }
- /// \brief Visit the end of a diagnostic block.
- virtual std::error_code visitEndOfDiagnostic() { return std::error_code(); }
- /// \brief Visit a category. This associates the category \c ID to a \c Name.
- virtual std::error_code visitCategoryRecord(unsigned ID, StringRef Name) {
- return std::error_code();
- }
- /// \brief Visit a flag. This associates the flag's \c ID to a \c Name.
- virtual std::error_code visitDiagFlagRecord(unsigned ID, StringRef Name) {
- return std::error_code();
- }
- /// \brief Visit a diagnostic.
- virtual std::error_code
- visitDiagnosticRecord(unsigned Severity, const Location &Location,
- unsigned Category, unsigned Flag, StringRef Message) {
- return std::error_code();
- }
- /// \brief Visit a filename. This associates the file's \c ID to a \c Name.
- virtual std::error_code visitFilenameRecord(unsigned ID, unsigned Size,
- unsigned Timestamp,
- StringRef Name) {
- return std::error_code();
- }
- /// \brief Visit a fixit hint.
- virtual std::error_code
- visitFixitRecord(const Location &Start, const Location &End, StringRef Text) {
- return std::error_code();
- }
- /// \brief Visit a source range.
- virtual std::error_code visitSourceRangeRecord(const Location &Start,
- const Location &End) {
- return std::error_code();
- }
- /// \brief Visit the version of the set of diagnostics.
- virtual std::error_code visitVersionRecord(unsigned Version) {
- return std::error_code();
- }
-};
-
-} // end serialized_diags namespace
-} // end clang namespace
-
-namespace std {
-template <>
-struct is_error_code_enum<clang::serialized_diags::SDError> : std::true_type {};
-}
-
-#endif
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