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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   ExportVarList mExportVars;
     93   ExportFuncList mExportFuncs;
     94   ExportForEachList mExportForEach;
     95   ExportTypeMap mExportTypes;
     96 
     97  public:
     98   RSContext(clang::Preprocessor &PP,
     99             clang::ASTContext &Ctx,
    100             const clang::TargetInfo &Target,
    101             PragmaList *Pragmas,
    102             unsigned int TargetAPI,
    103             std::vector<std::string> *GeneratedFileNames);
    104 
    105   inline clang::Preprocessor &getPreprocessor() const { return mPP; }
    106   inline clang::ASTContext &getASTContext() const { return mCtx; }
    107   inline clang::MangleContext &getMangleContext() const {
    108     return *mMangleCtx;
    109   }
    110   inline const llvm::TargetData *getTargetData() const { return mTargetData; }
    111   inline llvm::LLVMContext &getLLVMContext() const { return mLLVMContext; }
    112   inline const clang::SourceManager *getSourceManager() const {
    113     return &mPP.getSourceManager();
    114   }
    115   inline clang::DiagnosticsEngine *getDiagnostics() const {
    116     return &mPP.getDiagnostics();
    117   }
    118   inline unsigned int getTargetAPI() const {
    119     return mTargetAPI;
    120   }
    121 
    122   inline void setLicenseNote(const std::string &S) {
    123     mLicenseNote = new std::string(S);
    124   }
    125   inline const std::string *getLicenseNote() const { return mLicenseNote; }
    126 
    127   inline void addExportType(const std::string &S) {
    128     mNeedExportTypes.insert(S);
    129     return;
    130   }
    131 
    132   inline void setReflectJavaPackageName(const std::string &S) {
    133     mReflectJavaPackageName = S;
    134     return;
    135   }
    136   inline const std::string &getReflectJavaPackageName() {
    137     return mReflectJavaPackageName;
    138   }
    139 
    140   bool processExport();
    141   inline void newExportable(RSExportable *E) {
    142     if (E != NULL)
    143       mExportables.push_back(E);
    144   }
    145   typedef ExportableList::iterator exportable_iterator;
    146   exportable_iterator exportable_begin() {
    147     return mExportables.begin();
    148   }
    149   exportable_iterator exportable_end() {
    150     return mExportables.end();
    151   }
    152 
    153   typedef ExportVarList::const_iterator const_export_var_iterator;
    154   const_export_var_iterator export_vars_begin() const {
    155     return mExportVars.begin();
    156   }
    157   const_export_var_iterator export_vars_end() const {
    158     return mExportVars.end();
    159   }
    160   inline bool hasExportVar() const {
    161     return !mExportVars.empty();
    162   }
    163 
    164   typedef ExportFuncList::const_iterator const_export_func_iterator;
    165   const_export_func_iterator export_funcs_begin() const {
    166     return mExportFuncs.begin();
    167   }
    168   const_export_func_iterator export_funcs_end() const {
    169     return mExportFuncs.end();
    170   }
    171   inline bool hasExportFunc() const { return !mExportFuncs.empty(); }
    172 
    173   typedef ExportForEachList::const_iterator const_export_foreach_iterator;
    174   const_export_foreach_iterator export_foreach_begin() const {
    175     return mExportForEach.begin();
    176   }
    177   const_export_foreach_iterator export_foreach_end() const {
    178     return mExportForEach.end();
    179   }
    180   inline bool hasExportForEach() const { return !mExportForEach.empty(); }
    181 
    182   typedef ExportTypeMap::iterator export_type_iterator;
    183   typedef ExportTypeMap::const_iterator const_export_type_iterator;
    184   export_type_iterator export_types_begin() { return mExportTypes.begin(); }
    185   export_type_iterator export_types_end() { return mExportTypes.end(); }
    186   const_export_type_iterator export_types_begin() const {
    187     return mExportTypes.begin();
    188   }
    189   const_export_type_iterator export_types_end() const {
    190     return mExportTypes.end();
    191   }
    192   inline bool hasExportType() const { return !mExportTypes.empty(); }
    193   export_type_iterator findExportType(const llvm::StringRef &TypeName) {
    194     return mExportTypes.find(TypeName);
    195   }
    196   const_export_type_iterator findExportType(const llvm::StringRef &TypeName)
    197       const {
    198     return mExportTypes.find(TypeName);
    199   }
    200 
    201   // Insert the specified Typename/Type pair into the map. If the key already
    202   // exists in the map, return false and ignore the request, otherwise insert it
    203   // and return true.
    204   bool insertExportType(const llvm::StringRef &TypeName, RSExportType *Type);
    205 
    206   bool reflectToJava(const std::string &OutputPathBase,
    207                      const std::string &OutputPackageName,
    208                      const std::string &InputFileName,
    209                      const std::string &OutputBCFileName,
    210                      std::string *RealPackageName);
    211 
    212   int getVersion() const { return version; }
    213   void setVersion(int v) {
    214     version = v;
    215     return;
    216   }
    217 
    218   void addPragma(const std::string &T, const std::string &V) {
    219     mPragmas->push_back(make_pair(T, V));
    220   }
    221 
    222   ~RSContext();
    223 };
    224 
    225 }   // namespace slang
    226 
    227 #endif  // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_CONTEXT_H_  NOLINT
    228