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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_CONTEXT_H_  // NOLINT
     18 #define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_CONTEXT_H_
     19 
     20 #include <cstdio>
     21 #include <list>
     22 #include <map>
     23 #include <string>
     24 
     25 #include "clang/Lex/Preprocessor.h"
     26 #include "clang/AST/Mangle.h"
     27 
     28 #include "llvm/ADT/OwningPtr.h"
     29 #include "llvm/ADT/StringSet.h"
     30 #include "llvm/ADT/StringMap.h"
     31 
     32 #include "slang_pragma_recorder.h"
     33 
     34 namespace llvm {
     35   class LLVMContext;
     36   class TargetData;
     37 }   // namespace llvm
     38 
     39 namespace clang {
     40   class VarDecl;
     41   class ASTContext;
     42   class TargetInfo;
     43   class FunctionDecl;
     44   class SourceManager;
     45 }   // namespace clang
     46 
     47 namespace slang {
     48   class RSExportable;
     49   class RSExportVar;
     50   class RSExportFunc;
     51   class RSExportForEach;
     52   class RSExportType;
     53 
     54 class RSContext {
     55   typedef llvm::StringSet<> NeedExportVarSet;
     56   typedef llvm::StringSet<> NeedExportFuncSet;
     57   typedef llvm::StringSet<> NeedExportTypeSet;
     58 
     59  public:
     60   typedef std::list<RSExportable*> ExportableList;
     61   typedef std::list<RSExportVar*> ExportVarList;
     62   typedef std::list<RSExportFunc*> ExportFuncList;
     63   typedef std::list<RSExportForEach*> ExportForEachList;
     64   typedef llvm::StringMap<RSExportType*> ExportTypeMap;
     65 
     66  private:
     67   clang::Preprocessor &mPP;
     68   clang::ASTContext &mCtx;
     69   const clang::TargetInfo &mTarget;
     70   PragmaList *mPragmas;
     71   unsigned int mTargetAPI;
     72   std::vector<std::string> *mGeneratedFileNames;
     73 
     74   llvm::TargetData *mTargetData;
     75   llvm::LLVMContext &mLLVMContext;
     76 
     77   ExportableList mExportables;
     78 
     79   NeedExportTypeSet mNeedExportTypes;
     80 
     81   std::string *mLicenseNote;
     82   std::string mReflectJavaPackageName;
     83   std::string mReflectJavaPathName;
     84 
     85   int version;
     86   llvm::OwningPtr<clang::MangleContext> mMangleCtx;
     87 
     88   bool processExportVar(const clang::VarDecl *VD);
     89   bool processExportFunc(const clang::FunctionDecl *FD);
     90   bool processExportType(const llvm::StringRef &Name);
     91 
     92   void cleanupForEach();
     93 
     94   ExportVarList mExportVars;
     95   ExportFuncList mExportFuncs;
     96   ExportForEachList mExportForEach;
     97   ExportTypeMap mExportTypes;
     98 
     99  public:
    100   RSContext(clang::Preprocessor &PP,
    101             clang::ASTContext &Ctx,
    102             const clang::TargetInfo &Target,
    103             PragmaList *Pragmas,
    104             unsigned int TargetAPI,
    105             std::vector<std::string> *GeneratedFileNames);
    106 
    107   inline clang::Preprocessor &getPreprocessor() const { return mPP; }
    108   inline clang::ASTContext &getASTContext() const { return mCtx; }
    109   inline clang::MangleContext &getMangleContext() const {
    110     return *mMangleCtx;
    111   }
    112   inline const llvm::TargetData *getTargetData() const { return mTargetData; }
    113   inline llvm::LLVMContext &getLLVMContext() const { return mLLVMContext; }
    114   inline const clang::SourceManager *getSourceManager() const {
    115     return &mPP.getSourceManager();
    116   }
    117   inline clang::DiagnosticsEngine *getDiagnostics() const {
    118     return &mPP.getDiagnostics();
    119   }
    120   inline unsigned int getTargetAPI() const {
    121     return mTargetAPI;
    122   }
    123 
    124   inline void setLicenseNote(const std::string &S) {
    125     mLicenseNote = new std::string(S);
    126   }
    127   inline const std::string *getLicenseNote() const { return mLicenseNote; }
    128 
    129   inline void addExportType(const std::string &S) {
    130     mNeedExportTypes.insert(S);
    131     return;
    132   }
    133 
    134   inline void setReflectJavaPackageName(const std::string &S) {
    135     mReflectJavaPackageName = S;
    136     return;
    137   }
    138   inline const std::string &getReflectJavaPackageName() {
    139     return mReflectJavaPackageName;
    140   }
    141 
    142   bool processExport();
    143   inline void newExportable(RSExportable *E) {
    144     if (E != NULL)
    145       mExportables.push_back(E);
    146   }
    147   typedef ExportableList::iterator exportable_iterator;
    148   exportable_iterator exportable_begin() {
    149     return mExportables.begin();
    150   }
    151   exportable_iterator exportable_end() {
    152     return mExportables.end();
    153   }
    154 
    155   typedef ExportVarList::const_iterator const_export_var_iterator;
    156   const_export_var_iterator export_vars_begin() const {
    157     return mExportVars.begin();
    158   }
    159   const_export_var_iterator export_vars_end() const {
    160     return mExportVars.end();
    161   }
    162   inline bool hasExportVar() const {
    163     return !mExportVars.empty();
    164   }
    165 
    166   typedef ExportFuncList::const_iterator const_export_func_iterator;
    167   const_export_func_iterator export_funcs_begin() const {
    168     return mExportFuncs.begin();
    169   }
    170   const_export_func_iterator export_funcs_end() const {
    171     return mExportFuncs.end();
    172   }
    173   inline bool hasExportFunc() const { return !mExportFuncs.empty(); }
    174 
    175   typedef ExportForEachList::const_iterator const_export_foreach_iterator;
    176   const_export_foreach_iterator export_foreach_begin() const {
    177     return mExportForEach.begin();
    178   }
    179   const_export_foreach_iterator export_foreach_end() const {
    180     return mExportForEach.end();
    181   }
    182   inline bool hasExportForEach() const { return !mExportForEach.empty(); }
    183 
    184   typedef ExportTypeMap::iterator export_type_iterator;
    185   typedef ExportTypeMap::const_iterator const_export_type_iterator;
    186   export_type_iterator export_types_begin() { return mExportTypes.begin(); }
    187   export_type_iterator export_types_end() { return mExportTypes.end(); }
    188   const_export_type_iterator export_types_begin() const {
    189     return mExportTypes.begin();
    190   }
    191   const_export_type_iterator export_types_end() const {
    192     return mExportTypes.end();
    193   }
    194   inline bool hasExportType() const { return !mExportTypes.empty(); }
    195   export_type_iterator findExportType(const llvm::StringRef &TypeName) {
    196     return mExportTypes.find(TypeName);
    197   }
    198   const_export_type_iterator findExportType(const llvm::StringRef &TypeName)
    199       const {
    200     return mExportTypes.find(TypeName);
    201   }
    202 
    203   // Insert the specified Typename/Type pair into the map. If the key already
    204   // exists in the map, return false and ignore the request, otherwise insert it
    205   // and return true.
    206   bool insertExportType(const llvm::StringRef &TypeName, RSExportType *Type);
    207 
    208   bool reflectToJava(const std::string &OutputPathBase,
    209                      const std::string &OutputPackageName,
    210                      const std::string &InputFileName,
    211                      const std::string &OutputBCFileName,
    212                      std::string *RealPackageName);
    213 
    214   int getVersion() const { return version; }
    215   void setVersion(int v) {
    216     version = v;
    217     return;
    218   }
    219 
    220   void addPragma(const std::string &T, const std::string &V) {
    221     mPragmas->push_back(make_pair(T, V));
    222   }
    223 
    224   ~RSContext();
    225 };
    226 
    227 }   // namespace slang
    228 
    229 #endif  // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_CONTEXT_H_  NOLINT
    230