slang_rs_exportable.h revision 3cd3dd327445fcfa49f0e96cb2de2055bce541e9 
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 _SLANG_COMPILER_RS_EXPORTABLE_HPP
18#define _SLANG_COMPILER_RS_EXPORTABLE_HPP
19
20#include "slang_rs_context.h"
21
22namespace slang {
23
24class RSExportable {
25 public:
26  enum Kind {
27    EX_FUNC,
28    EX_TYPE,
29    EX_VAR
30  };
31
32 private:
33  RSContext *mContext;
34
35  Kind mK;
36
37 protected:
38  RSExportable(RSContext *Context, RSExportable::Kind K)
39      : mContext(Context),
40        mK(K) {
41    Context->newExportable(this);
42    return;
43  }
44
45 public:
46  inline Kind getKind() const { return mK; }
47
48  // When keep() is invoked, mKeep will set to true and the associated RSContext
49  // won't free this RSExportable object in its destructor. The deallcation
50  // responsibility is then transferred to the object who invoked this function.
51  // Return false if the exportable is kept or failed to keep.
52  virtual bool keep();
53  inline bool isKeep() const { return (mContext == NULL); }
54
55  virtual bool equals(const RSExportable *E) const;
56
57  inline RSContext *getRSContext() const { return mContext; }
58
59  virtual ~RSExportable() { }
60};
61}
62
63#endif  // _SLANG_COMPILER_RS_EXPORTABLE_HPP
64