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      1 //===- TextDiagnosticBuffer.h - Buffer Text Diagnostics ---------*- C++ -*-===//
      2 //
      3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
      4 // See https://llvm.org/LICENSE.txt for license information.
      5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
      6 //
      7 //===----------------------------------------------------------------------===//
      8 //
      9 // This is a concrete diagnostic client, which buffers the diagnostic messages.
     10 //
     11 //===----------------------------------------------------------------------===//
     12 
     13 #ifndef LLVM_CLANG_FRONTEND_TEXTDIAGNOSTICBUFFER_H
     14 #define LLVM_CLANG_FRONTEND_TEXTDIAGNOSTICBUFFER_H
     15 
     16 #include "clang/Basic/Diagnostic.h"
     17 #include "clang/Basic/SourceLocation.h"
     18 #include <cstddef>
     19 #include <string>
     20 #include <utility>
     21 #include <vector>
     22 
     23 namespace clang {
     24 
     25 class TextDiagnosticBuffer : public DiagnosticConsumer {
     26 public:
     27   using DiagList = std::vector<std::pair<SourceLocation, std::string>>;
     28   using iterator = DiagList::iterator;
     29   using const_iterator = DiagList::const_iterator;
     30 
     31 private:
     32   DiagList Errors, Warnings, Remarks, Notes;
     33 
     34   /// All - All diagnostics in the order in which they were generated.  That
     35   /// order likely doesn't correspond to user input order, but it at least
     36   /// keeps notes in the right places.  Each pair in the vector is a diagnostic
     37   /// level and an index into the corresponding DiagList above.
     38   std::vector<std::pair<DiagnosticsEngine::Level, size_t>> All;
     39 
     40 public:
     41   const_iterator err_begin() const { return Errors.begin(); }
     42   const_iterator err_end() const { return Errors.end(); }
     43 
     44   const_iterator warn_begin() const { return Warnings.begin(); }
     45   const_iterator warn_end() const { return Warnings.end(); }
     46 
     47   const_iterator remark_begin() const { return Remarks.begin(); }
     48   const_iterator remark_end() const { return Remarks.end(); }
     49 
     50   const_iterator note_begin() const { return Notes.begin(); }
     51   const_iterator note_end() const { return Notes.end(); }
     52 
     53   void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
     54                         const Diagnostic &Info) override;
     55 
     56   /// FlushDiagnostics - Flush the buffered diagnostics to an given
     57   /// diagnostic engine.
     58   void FlushDiagnostics(DiagnosticsEngine &Diags) const;
     59 };
     60 
     61 } // namespace clang
     62 
     63 #endif // LLVM_CLANG_FRONTEND_TEXTDIAGNOSTICBUFFER_H
     64