| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "PredefinedType.h" |
| |
| #include <hidl-util/Formatter.h> |
| #include <android-base/logging.h> |
| |
| namespace android { |
| |
| PredefinedType::PredefinedType(const char *name) |
| : mName(name) { |
| } |
| |
| void PredefinedType::addNamedTypesToSet(std::set<const FQName> &) const { |
| // do nothing |
| } |
| std::string PredefinedType::getCppType( |
| StorageMode mode, |
| std::string *extra, |
| bool) const { |
| extra->clear(); |
| |
| const std::string base = mName; |
| |
| switch (mode) { |
| case StorageMode_Stack: |
| return base; |
| |
| case StorageMode_Argument: |
| return "const " + base + "&"; |
| |
| case StorageMode_Result: |
| return "const " + base + "*"; |
| } |
| } |
| |
| std::string PredefinedType::getJavaType() const { |
| CHECK(!"Should not be here"); |
| return std::string(); |
| } |
| |
| void PredefinedType::emitReaderWriter( |
| Formatter &out, |
| const std::string &name, |
| const std::string &parcelObj, |
| bool parcelObjIsPointer, |
| bool isReader, |
| ErrorMode mode) const { |
| const std::string parentName = "_hidl_" + name + "_parent"; |
| |
| out << "size_t " << parentName << ";\n\n"; |
| |
| const std::string parcelObjDeref = |
| parcelObj + (parcelObjIsPointer ? "->" : "."); |
| |
| if (isReader) { |
| out << name |
| << " = (const " |
| << mName |
| << " *)" |
| << parcelObjDeref |
| << "readBuffer(" |
| << "&" |
| << parentName |
| << ");\n"; |
| |
| out << "if (" |
| << name |
| << " == nullptr) {\n"; |
| |
| out.indent(); |
| |
| out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
| handleError2(out, mode); |
| |
| out.unindent(); |
| out << "}\n\n"; |
| } else { |
| out << "_hidl_err = " |
| << parcelObjDeref |
| << "writeBuffer(&" |
| << name |
| << ", sizeof(" |
| << name |
| << "), &" |
| << parentName |
| << ");\n"; |
| |
| handleError(out, mode); |
| } |
| |
| emitReaderWriterEmbedded( |
| out, |
| 0 /* depth */, |
| name, |
| isReader /* nameIsPointer */, |
| parcelObj, |
| parcelObjIsPointer, |
| isReader, |
| mode, |
| parentName, |
| "0 /* parentOffset */"); |
| } |
| |
| void PredefinedType::emitReaderWriterEmbedded( |
| Formatter &out, |
| size_t /* depth */, |
| const std::string &name, |
| bool nameIsPointer, |
| const std::string &parcelObj, |
| bool parcelObjIsPointer, |
| bool isReader, |
| ErrorMode mode, |
| const std::string &parentName, |
| const std::string &offsetText) const { |
| emitReaderWriterEmbeddedForTypeName( |
| out, |
| name, |
| nameIsPointer, |
| parcelObj, |
| parcelObjIsPointer, |
| isReader, |
| mode, |
| parentName, |
| offsetText, |
| mName, |
| "" /* childName */); |
| } |
| |
| bool PredefinedType::isJavaCompatible() const { |
| return false; |
| } |
| |
| bool PredefinedType::needsEmbeddedReadWrite() const { |
| return true; |
| } |
| |
| bool PredefinedType::resultNeedsDeref() const { |
| return true; |
| } |
| |
| } // namespace android |
| |