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      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 "clang/Basic/SourceLocation.h"
     21 #include "slang_rs_context.h"
     22 
     23 namespace slang {
     24 
     25 class RSExportable {
     26  public:
     27   enum Kind {
     28     EX_FUNC,
     29     EX_TYPE,
     30     EX_VAR,
     31     EX_FOREACH,
     32     EX_REDUCE
     33   };
     34 
     35  private:
     36   RSContext *mContext;
     37 
     38   Kind mK;
     39 
     40   clang::SourceLocation mLoc;
     41 
     42  protected:
     43   RSExportable(RSContext *Context, RSExportable::Kind K, clang::SourceLocation Loc)
     44       : mContext(Context),
     45         mK(K),
     46         mLoc(Loc) {
     47     Context->newExportable(this);
     48   }
     49 
     50  public:
     51   Kind getKind() const { return mK; }
     52 
     53   clang::SourceLocation getLocation() const { return mLoc; }
     54 
     55   // When keep() is invoked, mKeep will set to true and the associated RSContext
     56   // won't free this RSExportable object in its destructor. The deallocation
     57   // responsibility is then transferred to the object who invoked this function.
     58   // Return false if the exportable is kept or failed to keep.
     59   virtual bool keep();
     60   bool isKeep() const { return (mContext == nullptr); }
     61 
     62   RSContext *getRSContext() const { return mContext; }
     63 
     64   virtual ~RSExportable() { }
     65 };
     66 }  // namespace slang
     67 
     68 #endif  // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORTABLE_H_  NOLINT
     69