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_EXPORTABLE_H_  // NOLINT
18 #define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORTABLE_H_
19 
20 #include "slang_rs_context.h"
21 
22 namespace slang {
23 
24 class RSExportable {
25  public:
26   enum Kind {
27     EX_FUNC,
28     EX_TYPE,
29     EX_VAR,
30     EX_FOREACH
31   };
32 
33  private:
34   RSContext *mContext;
35 
36   Kind mK;
37 
38  protected:
RSExportable(RSContext * Context,RSExportable::Kind K)39   RSExportable(RSContext *Context, RSExportable::Kind K)
40       : mContext(Context),
41         mK(K) {
42     Context->newExportable(this);
43   }
44 
45  public:
getKind()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();
isKeep()53   inline bool isKeep() const { return (mContext == nullptr); }
54 
55   virtual bool equals(const RSExportable *E) const;
56 
getRSContext()57   inline RSContext *getRSContext() const { return mContext; }
58 
~RSExportable()59   virtual ~RSExportable() { }
60 };
61 }  // namespace slang
62 
63 #endif  // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORTABLE_H_  NOLINT
64