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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_check_ast.h"
23 #include "slang_rs_object_ref_count.h"
24 
25 namespace llvm {
26   class NamedMDNode;
27 }
28 
29 namespace clang {
30   class ASTConsumer;
31   class DiagnosticsEngine;
32   class TargetOptions;
33   class CodeGenerator;
34   class ASTContext;
35   class DeclGroupRef;
36   class FunctionDecl;
37 }
38 
39 namespace slang {
40 
41 class RSContext;
42 
43 class RSBackend : public Backend {
44  private:
45   RSContext *mContext;
46 
47   clang::SourceManager &mSourceMgr;
48 
49   bool mAllowRSPrefix;
50 
51   bool mIsFilterscript;
52 
53   llvm::NamedMDNode *mExportVarMetadata;
54   llvm::NamedMDNode *mExportFuncMetadata;
55   llvm::NamedMDNode *mExportForEachNameMetadata;
56   llvm::NamedMDNode *mExportForEachSignatureMetadata;
57   llvm::NamedMDNode *mExportTypeMetadata;
58   llvm::NamedMDNode *mExportElementMetadata;
59   llvm::NamedMDNode *mRSObjectSlotsMetadata;
60 
61   RSObjectRefCount mRefCount;
62 
63   RSCheckAST mASTChecker;
64 
65   void AnnotateFunction(clang::FunctionDecl *FD);
66 
67   void dumpExportVarInfo(llvm::Module *M);
68   void dumpExportFunctionInfo(llvm::Module *M);
69   void dumpExportForEachInfo(llvm::Module *M);
70   void dumpExportTypeInfo(llvm::Module *M);
71 
72  protected:
getTargetAPI()73   virtual unsigned int getTargetAPI() const {
74     return mContext->getTargetAPI();
75   }
76 
77   virtual bool HandleTopLevelDecl(clang::DeclGroupRef D);
78 
79   virtual void HandleTranslationUnitPre(clang::ASTContext &C);
80 
81   virtual void HandleTranslationUnitPost(llvm::Module *M);
82 
83  public:
84   RSBackend(RSContext *Context,
85             clang::DiagnosticsEngine *DiagEngine,
86             const clang::CodeGenOptions &CodeGenOpts,
87             const clang::TargetOptions &TargetOpts,
88             PragmaList *Pragmas,
89             llvm::raw_ostream *OS,
90             Slang::OutputType OT,
91             clang::SourceManager &SourceMgr,
92             bool AllowRSPrefix,
93             bool IsFilterscript);
94 
95   virtual ~RSBackend();
96 };
97 }  // namespace slang
98 
99 #endif  // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_BACKEND_H_  NOLINT
100