Andreas Huber | 1aec397 | 2016-08-26 09:26:32 -0700 | [diff] [blame] | 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 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 17 | #include "StringType.h" |
| 18 | |
| 19 | #include "Formatter.h" |
| 20 | |
| 21 | namespace android { |
| 22 | |
| 23 | StringType::StringType() {} |
| 24 | |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 25 | void StringType::addNamedTypesToSet(std::set<const FQName> &) const { |
| 26 | // do nothing |
| 27 | } |
| 28 | |
| 29 | std::string StringType::getCppType(StorageMode mode, |
| 30 | std::string *extra, |
| 31 | bool specifyNamespaces) const { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 32 | extra->clear(); |
| 33 | |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 34 | const std::string base = |
| 35 | std::string(specifyNamespaces ? "::android::hardware::" : "") |
| 36 | + "hidl_string"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 37 | |
| 38 | switch (mode) { |
| 39 | case StorageMode_Stack: |
| 40 | return base; |
| 41 | |
| 42 | case StorageMode_Argument: |
| 43 | return "const " + base + "&"; |
| 44 | |
| 45 | case StorageMode_Result: |
| 46 | return "const " + base + "*"; |
| 47 | } |
| 48 | } |
| 49 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 50 | std::string StringType::getJavaType() const { |
| 51 | return "String"; |
| 52 | } |
| 53 | |
| 54 | std::string StringType::getJavaSuffix() const { |
| 55 | return "String"; |
| 56 | } |
| 57 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 58 | void StringType::emitReaderWriter( |
| 59 | Formatter &out, |
| 60 | const std::string &name, |
| 61 | const std::string &parcelObj, |
| 62 | bool parcelObjIsPointer, |
| 63 | bool isReader, |
| 64 | ErrorMode mode) const { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 65 | const std::string parentName = "_hidl_" + name + "_parent"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 66 | out << "size_t " << parentName << ";\n\n"; |
| 67 | |
| 68 | const std::string parcelObjDeref = |
| 69 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 70 | |
| 71 | if (isReader) { |
| 72 | out << name |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 73 | << " = (const ::android::hardware::hidl_string *)" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 74 | << parcelObjDeref |
| 75 | << "readBuffer(" |
| 76 | << "&" |
| 77 | << parentName |
| 78 | << ");\n"; |
| 79 | |
| 80 | out << "if (" |
| 81 | << name |
| 82 | << " == nullptr) {\n"; |
| 83 | |
| 84 | out.indent(); |
| 85 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 86 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 87 | handleError2(out, mode); |
| 88 | |
| 89 | out.unindent(); |
| 90 | out << "}\n\n"; |
| 91 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 92 | out << "_hidl_err = " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 93 | << parcelObjDeref |
| 94 | << "writeBuffer(&" |
| 95 | << name |
| 96 | << ", sizeof(" |
| 97 | << name |
| 98 | << "), &" |
| 99 | << parentName |
| 100 | << ");\n"; |
| 101 | |
| 102 | handleError(out, mode); |
| 103 | } |
| 104 | |
| 105 | emitReaderWriterEmbedded( |
| 106 | out, |
| 107 | name, |
| 108 | isReader /* nameIsPointer */, |
| 109 | parcelObj, |
| 110 | parcelObjIsPointer, |
| 111 | isReader, |
| 112 | mode, |
| 113 | parentName, |
| 114 | "0 /* parentOffset */"); |
| 115 | } |
| 116 | |
| 117 | void StringType::emitReaderWriterEmbedded( |
| 118 | Formatter &out, |
| 119 | const std::string &name, |
| 120 | bool nameIsPointer, |
| 121 | const std::string &parcelObj, |
| 122 | bool parcelObjIsPointer, |
| 123 | bool isReader, |
| 124 | ErrorMode mode, |
| 125 | const std::string &parentName, |
| 126 | const std::string &offsetText) const { |
| 127 | emitReaderWriterEmbeddedForTypeName( |
| 128 | out, |
| 129 | name, |
| 130 | nameIsPointer, |
| 131 | parcelObj, |
| 132 | parcelObjIsPointer, |
| 133 | isReader, |
| 134 | mode, |
| 135 | parentName, |
| 136 | offsetText, |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 137 | "::android::hardware::hidl_string", |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 138 | "" /* childName */); |
| 139 | } |
| 140 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 141 | void StringType::emitJavaFieldInitializer( |
| 142 | Formatter &out, const std::string &fieldName) const { |
| 143 | out << "String " |
| 144 | << fieldName |
| 145 | << " = new String();\n"; |
| 146 | } |
| 147 | |
| 148 | void StringType::emitJavaFieldReaderWriter( |
| 149 | Formatter &out, |
| 150 | const std::string &blobName, |
| 151 | const std::string &fieldName, |
| 152 | const std::string &offset, |
| 153 | bool isReader) const { |
| 154 | if (isReader) { |
| 155 | out << "\nparcel.readEmbeddedBuffer(\n"; |
| 156 | |
| 157 | out.indent(); |
| 158 | out.indent(); |
| 159 | |
| 160 | out << blobName |
| 161 | << ".handle(),\n" |
| 162 | << offset |
| 163 | << " + 0 /* offsetof(hidl_string, mBuffer) */);\n\n"; |
| 164 | |
| 165 | out.unindent(); |
| 166 | out.unindent(); |
| 167 | |
| 168 | out << fieldName |
| 169 | << " = " |
| 170 | << blobName |
| 171 | << ".getString(" |
| 172 | << offset |
| 173 | << ");\n"; |
| 174 | |
| 175 | return; |
| 176 | } |
| 177 | |
| 178 | out << blobName |
| 179 | << ".putString(" |
| 180 | << offset |
| 181 | << ", " |
| 182 | << fieldName |
| 183 | << ");\n"; |
| 184 | } |
| 185 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 186 | bool StringType::needsEmbeddedReadWrite() const { |
| 187 | return true; |
| 188 | } |
| 189 | |
| 190 | bool StringType::resultNeedsDeref() const { |
| 191 | return true; |
| 192 | } |
| 193 | |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 194 | status_t StringType::emitVtsTypeDeclarations(Formatter &out) const { |
| 195 | out << "type: TYPE_STRING\n"; |
| 196 | return OK; |
| 197 | } |
| 198 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 199 | void StringType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| 200 | *align = 8; // hidl_string |
| 201 | *size = 24; |
| 202 | } |
| 203 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 204 | } // namespace android |
| 205 | |