1 /* 2 * Copyright 2010-2011, 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_REFLECTION_H_ // NOLINT 18 #define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_REFLECTION_H_ 19 20 #include <fstream> 21 #include <iostream> 22 #include <map> 23 #include <set> 24 #include <string> 25 #include <vector> 26 27 #include "llvm/ADT/StringExtras.h" 28 29 #include "slang_assert.h" 30 #include "slang_rs_export_type.h" 31 32 namespace slang { 33 34 class RSContext; 35 class RSExportVar; 36 class RSExportFunc; 37 class RSExportForEach; 38 39 class RSReflection { 40 private: 41 const RSContext *mRSContext; 42 43 std::string mLastError; 44 std::vector<std::string> *mGeneratedFileNames; 45 46 inline void setError(const std::string &Error) { mLastError = Error; } 47 48 class Context { 49 private: 50 static const char *const ApacheLicenseNote; 51 52 static const char *const Import[]; 53 54 bool mVerbose; 55 56 std::string mOutputPathBase; 57 58 std::string mInputRSFile; 59 60 std::string mPackageName; 61 std::string mResourceId; 62 std::string mPaddingPrefix; 63 64 std::string mClassName; 65 66 std::string mLicenseNote; 67 68 std::string mIndent; 69 70 int mPaddingFieldIndex; 71 72 int mNextExportVarSlot; 73 int mNextExportFuncSlot; 74 int mNextExportForEachSlot; 75 76 // A mapping from a field in a record type to its index in the rsType 77 // instance. Only used when generates TypeClass (ScriptField_*). 78 typedef std::map<const RSExportRecordType::Field*, unsigned> 79 FieldIndexMapTy; 80 FieldIndexMapTy mFieldIndexMap; 81 // Field index of current processing TypeClass. 82 unsigned mFieldIndex; 83 84 inline void clear() { 85 mClassName = ""; 86 mIndent = ""; 87 mPaddingFieldIndex = 1; 88 mNextExportVarSlot = 0; 89 mNextExportFuncSlot = 0; 90 mNextExportForEachSlot = 0; 91 return; 92 } 93 94 bool openClassFile(const std::string &ClassName, 95 std::string &ErrorMsg); 96 97 public: 98 typedef enum { 99 AM_Public, 100 AM_Protected, 101 AM_Private, 102 AM_PublicSynchronized 103 } AccessModifier; 104 105 bool mUseStdout; 106 mutable std::ofstream mOF; 107 108 std::set<std::string> mTypesToCheck; 109 110 static const char *AccessModifierStr(AccessModifier AM); 111 112 Context(const std::string &OutputPathBase, 113 const std::string &InputRSFile, 114 const std::string &PackageName, 115 const std::string &ResourceId, 116 const std::string &PaddingPrefix, 117 bool UseStdout) 118 : mVerbose(true), 119 mOutputPathBase(OutputPathBase), 120 mInputRSFile(InputRSFile), 121 mPackageName(PackageName), 122 mResourceId(ResourceId), 123 mPaddingPrefix(PaddingPrefix), 124 mLicenseNote(ApacheLicenseNote), 125 mUseStdout(UseStdout) { 126 clear(); 127 resetFieldIndex(); 128 clearFieldIndexMap(); 129 return; 130 } 131 132 inline std::ostream &out() const { 133 return ((mUseStdout) ? std::cout : mOF); 134 } 135 inline std::ostream &indent() const { 136 out() << mIndent; 137 return out(); 138 } 139 140 inline void incIndentLevel() { 141 mIndent.append(4, ' '); 142 return; 143 } 144 145 inline void decIndentLevel() { 146 slangAssert(getIndentLevel() > 0 && "No indent"); 147 mIndent.erase(0, 4); 148 return; 149 } 150 151 inline int getIndentLevel() { return (mIndent.length() >> 2); } 152 153 inline int getNextExportVarSlot() { return mNextExportVarSlot++; } 154 155 inline int getNextExportFuncSlot() { return mNextExportFuncSlot++; } 156 inline int getNextExportForEachSlot() { return mNextExportForEachSlot++; } 157 158 // Will remove later due to field name information is not necessary for 159 // C-reflect-to-Java 160 inline std::string createPaddingField() { 161 return mPaddingPrefix + llvm::itostr(mPaddingFieldIndex++); 162 } 163 164 inline void setLicenseNote(const std::string &LicenseNote) { 165 mLicenseNote = LicenseNote; 166 } 167 168 bool startClass(AccessModifier AM, 169 bool IsStatic, 170 const std::string &ClassName, 171 const char *SuperClassName, 172 std::string &ErrorMsg); 173 void endClass(); 174 175 void startFunction(AccessModifier AM, 176 bool IsStatic, 177 const char *ReturnType, 178 const std::string &FunctionName, 179 int Argc, ...); 180 181 typedef std::vector<std::pair<std::string, std::string> > ArgTy; 182 void startFunction(AccessModifier AM, 183 bool IsStatic, 184 const char *ReturnType, 185 const std::string &FunctionName, 186 const ArgTy &Args); 187 void endFunction(); 188 189 void startBlock(bool ShouldIndent = false); 190 void endBlock(); 191 192 inline const std::string &getPackageName() const { return mPackageName; } 193 inline const std::string &getClassName() const { return mClassName; } 194 inline const std::string &getResourceId() const { return mResourceId; } 195 196 void startTypeClass(const std::string &ClassName); 197 void endTypeClass(); 198 199 inline void incFieldIndex() { mFieldIndex++; } 200 201 inline void resetFieldIndex() { mFieldIndex = 0; } 202 203 inline void addFieldIndexMapping(const RSExportRecordType::Field *F) { 204 slangAssert((mFieldIndexMap.find(F) == mFieldIndexMap.end()) && 205 "Nested structure never occurs in C language."); 206 mFieldIndexMap.insert(std::make_pair(F, mFieldIndex)); 207 } 208 209 inline unsigned getFieldIndex(const RSExportRecordType::Field *F) const { 210 FieldIndexMapTy::const_iterator I = mFieldIndexMap.find(F); 211 slangAssert((I != mFieldIndexMap.end()) && 212 "Requesting field is out of scope."); 213 return I->second; 214 } 215 216 inline void clearFieldIndexMap() { mFieldIndexMap.clear(); } 217 }; 218 219 bool genScriptClass(Context &C, 220 const std::string &ClassName, 221 std::string &ErrorMsg); 222 void genScriptClassConstructor(Context &C); 223 224 static void genInitBoolExportVariable(Context &C, 225 const std::string &VarName, 226 const clang::APValue &Val); 227 static void genInitPrimitiveExportVariable(Context &C, 228 const std::string &VarName, 229 const clang::APValue &Val); 230 static void genInitExportVariable(Context &C, 231 const RSExportType *ET, 232 const std::string &VarName, 233 const clang::APValue &Val); 234 static void genInitValue(Context &C, const clang::APValue &Val); 235 void genExportVariable(Context &C, const RSExportVar *EV); 236 void genPrimitiveTypeExportVariable(Context &C, const RSExportVar *EV); 237 void genPointerTypeExportVariable(Context &C, const RSExportVar *EV); 238 void genVectorTypeExportVariable(Context &C, const RSExportVar *EV); 239 void genMatrixTypeExportVariable(Context &C, const RSExportVar *EV); 240 void genConstantArrayTypeExportVariable(Context &C, const RSExportVar *EV); 241 void genRecordTypeExportVariable(Context &C, const RSExportVar *EV); 242 void genPrivateExportVariable(Context &C, 243 const std::string &TypeName, 244 const std::string &VarName); 245 void genSetExportVariable(Context &C, 246 const std::string &TypeName, 247 const RSExportVar *EV); 248 void genGetExportVariable(Context &C, 249 const std::string &TypeName, 250 const std::string &VarName); 251 252 void genExportFunction(Context &C, 253 const RSExportFunc *EF); 254 255 void genExportForEach(Context &C, 256 const RSExportForEach *EF); 257 258 static void genTypeCheck(Context &C, 259 const RSExportType *ET, 260 const char *VarName); 261 262 static void genTypeInstanceFromPointer(Context &C, 263 const RSExportType *ET); 264 265 static void genTypeInstance(Context &C, 266 const RSExportType *ET); 267 268 bool genTypeClass(Context &C, 269 const RSExportRecordType *ERT, 270 std::string &ErrorMsg); 271 void genTypeItemClass(Context &C, const RSExportRecordType *ERT); 272 void genTypeClassConstructor(Context &C, const RSExportRecordType *ERT); 273 void genTypeClassCopyToArray(Context &C, const RSExportRecordType *ERT); 274 void genTypeClassCopyToArrayLocal(Context &C, const RSExportRecordType *ERT); 275 void genTypeClassItemSetter(Context &C, const RSExportRecordType *ERT); 276 void genTypeClassItemGetter(Context &C, const RSExportRecordType *ERT); 277 void genTypeClassComponentSetter(Context &C, const RSExportRecordType *ERT); 278 void genTypeClassComponentGetter(Context &C, const RSExportRecordType *ERT); 279 void genTypeClassCopyAll(Context &C, const RSExportRecordType *ERT); 280 void genTypeClassResize(Context &C); 281 282 void genBuildElement(Context &C, 283 const char *ElementBuilderName, 284 const RSExportRecordType *ERT, 285 const char *RenderScriptVar, 286 bool IsInline); 287 void genAddElementToElementBuilder(Context &C, 288 const RSExportType *ERT, 289 const std::string &VarName, 290 const char *ElementBuilderName, 291 const char *RenderScriptVar, 292 unsigned ArraySize); 293 void genAddPaddingToElementBuiler(Context &C, 294 int PaddingSize, 295 const char *ElementBuilderName, 296 const char *RenderScriptVar); 297 298 bool genCreateFieldPacker(Context &C, 299 const RSExportType *T, 300 const char *FieldPackerName); 301 void genPackVarOfType(Context &C, 302 const RSExportType *T, 303 const char *VarName, 304 const char *FieldPackerName); 305 void genAllocateVarOfType(Context &C, 306 const RSExportType *T, 307 const std::string &VarName); 308 void genNewItemBufferIfNull(Context &C, const char *Index); 309 void genNewItemBufferPackerIfNull(Context &C); 310 311 public: 312 explicit RSReflection(const RSContext *Context, 313 std::vector<std::string> *GeneratedFileNames) 314 : mRSContext(Context), 315 mLastError(""), 316 mGeneratedFileNames(GeneratedFileNames) { 317 slangAssert(mGeneratedFileNames && "Must supply GeneratedFileNames"); 318 return; 319 } 320 321 bool reflect(const std::string &OutputPathBase, 322 const std::string &OutputPackageName, 323 const std::string &InputFileName, 324 const std::string &OutputBCFileName); 325 326 inline const char *getLastError() const { 327 if (mLastError.empty()) 328 return NULL; 329 else 330 return mLastError.c_str(); 331 } 332 }; // class RSReflection 333 334 } // namespace slang 335 336 #endif // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_REFLECTION_H_ NOLINT 337
