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      1 /*
      2  * Copyright 2010-2012, 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_BACKEND_H_  // NOLINT
     18 #define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_BACKEND_H_
     19 
     20 #include "slang_backend.h"
     21 #include "slang_pragma_recorder.h"
     22 #include "slang_rs_object_ref_count.h"
     23 
     24 namespace llvm {
     25   class NamedMDNode;
     26 }
     27 
     28 namespace clang {
     29   class ASTConsumer;
     30   class DiagnosticsEngine;
     31   class TargetOptions;
     32   class CodeGenerator;
     33   class ASTContext;
     34   class DeclGroupRef;
     35   class FunctionDecl;
     36 }
     37 
     38 namespace slang {
     39 
     40 class RSContext;
     41 
     42 class RSBackend : public Backend {
     43  private:
     44   RSContext *mContext;
     45 
     46   clang::SourceManager &mSourceMgr;
     47 
     48   bool mAllowRSPrefix;
     49 
     50   llvm::NamedMDNode *mExportVarMetadata;
     51   llvm::NamedMDNode *mExportFuncMetadata;
     52   llvm::NamedMDNode *mExportForEachNameMetadata;
     53   llvm::NamedMDNode *mExportForEachSignatureMetadata;
     54   llvm::NamedMDNode *mExportTypeMetadata;
     55   llvm::NamedMDNode *mExportElementMetadata;
     56   llvm::NamedMDNode *mRSObjectSlotsMetadata;
     57 
     58   RSObjectRefCount mRefCount;
     59 
     60   void AnnotateFunction(clang::FunctionDecl *FD);
     61 
     62  protected:
     63   virtual unsigned int getTargetAPI() const {
     64     return mContext->getTargetAPI();
     65   }
     66 
     67   virtual bool HandleTopLevelDecl(clang::DeclGroupRef D);
     68 
     69   virtual void HandleTranslationUnitPre(clang::ASTContext &C);
     70 
     71   virtual void HandleTranslationUnitPost(llvm::Module *M);
     72 
     73  public:
     74   RSBackend(RSContext *Context,
     75             clang::DiagnosticsEngine *DiagEngine,
     76             const clang::CodeGenOptions &CodeGenOpts,
     77             const clang::TargetOptions &TargetOpts,
     78             PragmaList *Pragmas,
     79             llvm::raw_ostream *OS,
     80             Slang::OutputType OT,
     81             clang::SourceManager &SourceMgr,
     82             bool AllowRSPrefix);
     83 
     84   virtual ~RSBackend();
     85 };
     86 }  // namespace slang
     87 
     88 #endif  // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_BACKEND_H_  NOLINT
     89