1/*
2 * Copyright 2010, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef _FRAMEWORKS_COMPILE_SLANG_SLANG_DIAGNOSTIC_BUFFER_H_  // NOLINT
18#define _FRAMEWORKS_COMPILE_SLANG_SLANG_DIAGNOSTIC_BUFFER_H_
19
20#include <set>
21#include <string>
22
23#include "clang/Basic/Diagnostic.h"
24
25#include "llvm/Support/raw_ostream.h"
26
27namespace llvm {
28  class raw_string_ostream;
29}
30
31namespace slang {
32
33// The diagnostics consumer instance (for reading the processed diagnostics)
34class DiagnosticBuffer : public clang::DiagnosticConsumer {
35private:
36  // We keed track of the messages that have been already added to this
37  // diagnostic buffer, to avoid duplicates.  This can happen because for a
38  // given script we'll usually compile for both 32 and 64 bit targets.
39  std::set<std::string> mIncludedMessages;
40  std::string mDiags;
41  std::unique_ptr<llvm::raw_string_ostream> mSOS;
42
43public:
44  DiagnosticBuffer();
45  virtual ~DiagnosticBuffer();
46
47  virtual void HandleDiagnostic(clang::DiagnosticsEngine::Level DiagLevel,
48                                const clang::Diagnostic &Info) override;
49
50  inline const std::string &str() const {
51    mSOS->flush();
52    return mDiags;
53  }
54
55  inline void reset() {
56    mIncludedMessages.clear();
57    mSOS.reset();
58    mDiags.clear();
59  }
60};
61
62}  // namespace slang
63
64#endif  // _FRAMEWORKS_COMPILE_SLANG_SLANG_DIAGNOSTIC_BUFFER_H_  NOLINT
65