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_RS_PRAGMA_HANDLER_H_  // NOLINT
18#define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_PRAGMA_HANDLER_H_
19
20#include <string>
21
22#include "clang/Lex/Pragma.h"
23
24namespace clang {
25  class Token;
26  class IdentifierInfo;
27  class Preprocessor;
28}
29
30namespace slang {
31
32  class RSContext;
33
34class RSPragmaHandler : public clang::PragmaHandler {
35 protected:
36  RSContext *mContext;
37
38  RSPragmaHandler(llvm::StringRef Name, RSContext *Context)
39      : clang::PragmaHandler(Name),
40        mContext(Context) {
41  }
42  RSContext *getContext() const {
43    return this->mContext;
44  }
45
46  virtual void handleItem(const std::string &Item) { }
47  virtual void handleInt(clang::Preprocessor &PP, clang::Token &Tok,
48                         const int v) { }
49
50  // Handle pragma like #pragma rs [name] ([item #1],[item #2],...,[item #i])
51  void handleItemListPragma(clang::Preprocessor &PP,
52                            clang::Token &FirstToken);
53
54  // Handle pragma like #pragma rs [name]
55  void handleNonParamPragma(clang::Preprocessor &PP,
56                            clang::Token &FirstToken);
57
58  // Handle pragma like #pragma rs [name] ("string literal")
59  void handleOptionalStringLiteralParamPragma(clang::Preprocessor &PP,
60                                              clang::Token &FirstToken);
61
62  // Handle pragma like #pragma version (integer)
63  void handleIntegerParamPragma(clang::Preprocessor &PP,
64                                clang::Token &FirstToken);
65
66 public:
67  virtual void HandlePragma(clang::Preprocessor &PP,
68                            clang::PragmaIntroducerKind Introducer,
69                            clang::Token &FirstToken) = 0;
70};
71
72// Add handlers for the RS pragmas to the preprocessor.  These handlers
73// validate the pragmas and, if valid, set fields of the RSContext.
74void AddPragmaHandlers(clang::Preprocessor &PP, RSContext *RsContext);
75
76}   // namespace slang
77
78#endif  // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_PRAGMA_HANDLER_H_  NOLINT
79