Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -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 | |
| 17 | #include "PredefinedType.h" |
| 18 | |
Iliyan Malchev | a72e0d2 | 2016-09-09 11:03:08 -0700 | [diff] [blame] | 19 | #include <hidl-util/Formatter.h> |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 20 | #include <android-base/logging.h> |
| 21 | |
| 22 | namespace android { |
| 23 | |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 24 | PredefinedType::PredefinedType(const char *nsp, const char *name) |
| 25 | : mNamespace(nsp), mName(name) { |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 26 | } |
| 27 | |
Andreas Huber | 4bcf97d | 2016-08-30 11:27:49 -0700 | [diff] [blame] | 28 | void PredefinedType::addNamedTypesToSet(std::set<const FQName> &) const { |
| 29 | // do nothing |
| 30 | } |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 31 | |
| 32 | std::string PredefinedType::fullName() const { |
| 33 | return mNamespace + |
| 34 | (mNamespace.empty() ? "" : "::") + |
| 35 | mName; |
| 36 | } |
| 37 | |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 38 | std::string PredefinedType::getCppType( |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 39 | StorageMode mode, |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 40 | bool) const { |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 41 | |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 42 | const std::string base = fullName(); |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 43 | |
| 44 | switch (mode) { |
Martijn Coenen | ac58789 | 2016-11-17 15:14:19 +0100 | [diff] [blame] | 45 | case StorageMode_Compound: |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 46 | case StorageMode_Stack: |
| 47 | return base; |
| 48 | |
| 49 | case StorageMode_Argument: |
| 50 | return "const " + base + "&"; |
| 51 | |
| 52 | case StorageMode_Result: |
| 53 | return "const " + base + "*"; |
| 54 | } |
| 55 | } |
| 56 | |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 57 | void PredefinedType::emitReaderWriter( |
| 58 | Formatter &out, |
| 59 | const std::string &name, |
| 60 | const std::string &parcelObj, |
| 61 | bool parcelObjIsPointer, |
| 62 | bool isReader, |
| 63 | ErrorMode mode) const { |
| 64 | const std::string parentName = "_hidl_" + name + "_parent"; |
| 65 | |
| 66 | out << "size_t " << parentName << ";\n\n"; |
| 67 | |
| 68 | const std::string parcelObjDeref = |
| 69 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 70 | |
| 71 | if (isReader) { |
| 72 | out << name |
| 73 | << " = (const " |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 74 | << fullName() |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 75 | << " *)" |
| 76 | << parcelObjDeref |
| 77 | << "readBuffer(" |
| 78 | << "&" |
| 79 | << parentName |
| 80 | << ");\n"; |
| 81 | |
| 82 | out << "if (" |
| 83 | << name |
| 84 | << " == nullptr) {\n"; |
| 85 | |
| 86 | out.indent(); |
| 87 | |
| 88 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
| 89 | handleError2(out, mode); |
| 90 | |
| 91 | out.unindent(); |
| 92 | out << "}\n\n"; |
| 93 | } else { |
| 94 | out << "_hidl_err = " |
| 95 | << parcelObjDeref |
| 96 | << "writeBuffer(&" |
| 97 | << name |
| 98 | << ", sizeof(" |
| 99 | << name |
| 100 | << "), &" |
| 101 | << parentName |
| 102 | << ");\n"; |
| 103 | |
| 104 | handleError(out, mode); |
| 105 | } |
| 106 | |
| 107 | emitReaderWriterEmbedded( |
| 108 | out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame] | 109 | 0 /* depth */, |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 110 | name, |
Yifan Hong | be2a373 | 2016-10-05 13:33:41 -0700 | [diff] [blame] | 111 | name /* sanitizedName */, |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 112 | isReader /* nameIsPointer */, |
| 113 | parcelObj, |
| 114 | parcelObjIsPointer, |
| 115 | isReader, |
| 116 | mode, |
| 117 | parentName, |
| 118 | "0 /* parentOffset */"); |
| 119 | } |
| 120 | |
| 121 | void PredefinedType::emitReaderWriterEmbedded( |
| 122 | Formatter &out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame] | 123 | size_t /* depth */, |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 124 | const std::string &name, |
Yifan Hong | be2a373 | 2016-10-05 13:33:41 -0700 | [diff] [blame] | 125 | const std::string & /* sanitizedName */, |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 126 | bool nameIsPointer, |
| 127 | const std::string &parcelObj, |
| 128 | bool parcelObjIsPointer, |
| 129 | bool isReader, |
| 130 | ErrorMode mode, |
| 131 | const std::string &parentName, |
| 132 | const std::string &offsetText) const { |
| 133 | emitReaderWriterEmbeddedForTypeName( |
| 134 | out, |
| 135 | name, |
| 136 | nameIsPointer, |
| 137 | parcelObj, |
| 138 | parcelObjIsPointer, |
| 139 | isReader, |
| 140 | mode, |
| 141 | parentName, |
| 142 | offsetText, |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 143 | fullName(), |
| 144 | "" /* childName */, |
| 145 | mNamespace); |
Andreas Huber | 4b2cf35 | 2016-08-31 13:58:19 -0700 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | bool PredefinedType::isJavaCompatible() const { |
| 149 | return false; |
| 150 | } |
| 151 | |
| 152 | bool PredefinedType::needsEmbeddedReadWrite() const { |
| 153 | return true; |
| 154 | } |
| 155 | |
| 156 | bool PredefinedType::resultNeedsDeref() const { |
| 157 | return true; |
| 158 | } |
| 159 | |
| 160 | } // namespace android |
| 161 | |