| //=== SourceMgrAdapter.h - SourceMgr to SourceManager Adapter ---*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file provides an adapter that maps diagnostics from llvm::SourceMgr |
| // to Clang's SourceManager. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_SOURCEMGRADAPTER_H |
| #define LLVM_CLANG_SOURCEMGRADAPTER_H |
| |
| #include "clang/Basic/SourceManager.h" |
| #include "llvm/ADT/DenseMap.h" |
| #include "llvm/Support/SourceMgr.h" |
| #include <string> |
| #include <utility> |
| |
| namespace clang { |
| |
| class DiagnosticsEngine; |
| class FileEntry; |
| |
| /// An adapter that can be used to translate diagnostics from one or more |
| /// llvm::SourceMgr instances to a , |
| class SourceMgrAdapter { |
| /// Clang source manager. |
| SourceManager &SrcMgr; |
| |
| /// Clang diagnostics engine. |
| DiagnosticsEngine &Diagnostics; |
| |
| /// Diagnostic IDs for errors, warnings, and notes. |
| unsigned ErrorDiagID, WarningDiagID, NoteDiagID; |
| |
| /// The default file to use when mapping buffers. |
| OptionalFileEntryRef DefaultFile; |
| |
| /// A mapping from (LLVM source manager, buffer ID) pairs to the |
| /// corresponding file ID within the Clang source manager. |
| llvm::DenseMap<std::pair<const llvm::SourceMgr *, unsigned>, FileID> |
| FileIDMapping; |
| |
| /// Diagnostic handler. |
| static void handleDiag(const llvm::SMDiagnostic &Diag, void *Context); |
| |
| public: |
| /// Create a new \c SourceMgr adaptor that maps to the given source |
| /// manager and diagnostics engine. |
| SourceMgrAdapter(SourceManager &SM, DiagnosticsEngine &Diagnostics, |
| unsigned ErrorDiagID, unsigned WarningDiagID, |
| unsigned NoteDiagID, |
| OptionalFileEntryRef DefaultFile = std::nullopt); |
| |
| ~SourceMgrAdapter(); |
| |
| /// Map a source location in the given LLVM source manager to its |
| /// corresponding location in the Clang source manager. |
| SourceLocation mapLocation(const llvm::SourceMgr &LLVMSrcMgr, |
| llvm::SMLoc Loc); |
| |
| /// Map a source range in the given LLVM source manager to its corresponding |
| /// range in the Clang source manager. |
| SourceRange mapRange(const llvm::SourceMgr &LLVMSrcMgr, llvm::SMRange Range); |
| |
| /// Handle the given diagnostic from an LLVM source manager. |
| void handleDiag(const llvm::SMDiagnostic &Diag); |
| |
| /// Retrieve the diagnostic handler to use with the underlying SourceMgr. |
| llvm::SourceMgr::DiagHandlerTy getDiagHandler() { |
| return &SourceMgrAdapter::handleDiag; |
| } |
| |
| /// Retrieve the context to use with the diagnostic handler produced by |
| /// \c getDiagHandler(). |
| void *getDiagContext() { return this; } |
| }; |
| |
| } // end namespace clang |
| |
| #endif |