1 /* 2 * Copyright (C) 2016 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 ENUM_TYPE_H_ 18 19 #define ENUM_TYPE_H_ 20 21 #include "ConstantExpression.h" 22 #include "Scope.h" 23 24 #include <vector> 25 26 namespace android { 27 28 struct EnumValue; 29 struct BitFieldType; 30 31 struct EnumType : public Scope { 32 EnumType(const char *localName, 33 const Location &location, 34 Type *storageType); 35 36 const Type *storageType() const; 37 const std::vector<EnumValue *> &values() const; 38 void addValue(EnumValue *value); 39 40 LocalIdentifier *lookupIdentifier(const std::string &name) const override; 41 42 bool isElidableType() const override; 43 const ScalarType *resolveToScalarType() const override; 44 45 std::string typeName() const override; 46 bool isEnum() const override; 47 bool canCheckEquality() const override; 48 49 std::string getCppType(StorageMode mode, 50 bool specifyNamespaces) const override; 51 52 std::string getJavaType(bool forInitializer) const override; 53 54 std::string getJavaSuffix() const override; 55 56 std::string getJavaWrapperType() const override; 57 58 std::string getVtsType() const override; 59 60 // Return the type that corresponds to bitfield<T>. 61 BitFieldType *getBitfieldType() const; 62 63 void emitReaderWriter( 64 Formatter &out, 65 const std::string &name, 66 const std::string &parcelObj, 67 bool parcelObjIsPointer, 68 bool isReader, 69 ErrorMode mode) const override; 70 71 void emitJavaFieldReaderWriter( 72 Formatter &out, 73 size_t depth, 74 const std::string &parcelName, 75 const std::string &blobName, 76 const std::string &fieldName, 77 const std::string &offset, 78 bool isReader) const override; 79 80 status_t emitTypeDeclarations(Formatter &out) const override; 81 status_t emitGlobalTypeDeclarations(Formatter &out) const override; 82 status_t emitTypeDefinitions(Formatter &out, const std::string prefix) const override; 83 84 status_t emitJavaTypeDeclarations( 85 Formatter &out, bool atTopLevel) const override; 86 87 status_t emitVtsTypeDeclarations(Formatter &out) const override; 88 status_t emitVtsAttributeType(Formatter &out) const override; 89 90 void emitJavaDump( 91 Formatter &out, 92 const std::string &streamName, 93 const std::string &name) const override; 94 95 void getAlignmentAndSize(size_t *align, size_t *size) const override; 96 97 void appendToExportedTypesVector( 98 std::vector<const Type *> *exportedTypes) const override; 99 100 status_t emitExportedHeader(Formatter &out, bool forJava) const override; 101 102 private: 103 void getTypeChain(std::vector<const EnumType *> *out) const; 104 const Annotation *findExportAnnotation() const; 105 106 void emitEnumBitwiseOperator( 107 Formatter &out, 108 bool lhsIsEnum, 109 bool rhsIsEnum, 110 const std::string &op) const; 111 112 void emitBitFieldBitwiseAssignmentOperator( 113 Formatter &out, 114 const std::string &op) const; 115 116 std::vector<EnumValue *> mValues; 117 Type *mStorageType; 118 BitFieldType *mBitfieldType; 119 120 DISALLOW_COPY_AND_ASSIGN(EnumType); 121 }; 122 123 struct EnumValue : public LocalIdentifier { 124 EnumValue(const char *name, ConstantExpression *value = nullptr); 125 126 std::string name() const; 127 std::string value(ScalarType::Kind castKind) const; 128 std::string cppValue(ScalarType::Kind castKind) const; 129 std::string javaValue(ScalarType::Kind castKind) const; 130 std::string comment() const; 131 void autofill(const EnumValue *prev, const ScalarType *type); 132 ConstantExpression *constExpr() const; 133 134 bool isAutoFill() const; 135 bool isEnumValue() const override; 136 137 138 std::string mName; 139 ConstantExpression *mValue; 140 bool mIsAutoFill; 141 142 DISALLOW_COPY_AND_ASSIGN(EnumValue); 143 }; 144 145 struct BitFieldType : public TemplatedType { 146 147 std::string typeName() const override; 148 149 bool isBitField() const override; 150 151 void addNamedTypesToSet(std::set<const FQName> &set) const override; 152 153 bool isCompatibleElementType(Type *elementType) const override; 154 155 bool isElidableType() const override; 156 157 bool canCheckEquality() const override; 158 159 const ScalarType *resolveToScalarType() const override; 160 161 std::string getCppType(StorageMode mode, 162 bool specifyNamespaces) const override; 163 164 std::string getJavaType(bool forInitializer) const override; 165 166 std::string getJavaSuffix() const override; 167 168 std::string getJavaWrapperType() const override; 169 170 std::string getVtsType() const override; 171 172 EnumType *getEnumType() const; 173 174 status_t emitVtsAttributeType(Formatter &out) const override; 175 176 void getAlignmentAndSize(size_t *align, size_t *size) const override; 177 178 void emitReaderWriter( 179 Formatter &out, 180 const std::string &name, 181 const std::string &parcelObj, 182 bool parcelObjIsPointer, 183 bool isReader, 184 ErrorMode mode) const override; 185 186 void emitDump( 187 Formatter &out, 188 const std::string &streamName, 189 const std::string &name) const override; 190 191 void emitJavaDump( 192 Formatter &out, 193 const std::string &streamName, 194 const std::string &name) const override; 195 196 void emitJavaFieldReaderWriter( 197 Formatter &out, 198 size_t depth, 199 const std::string &parcelName, 200 const std::string &blobName, 201 const std::string &fieldName, 202 const std::string &offset, 203 bool isReader) const override; 204 }; 205 206 } // namespace android 207 208 #endif // ENUM_TYPE_H_ 209 210