StringType.cpp revision 709b62dbda6184770bb34470ff550e02c1643e67
11aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber/* 21aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * Copyright (C) 2016 The Android Open Source Project 31aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * 41aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 51aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * you may not use this file except in compliance with the License. 61aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * You may obtain a copy of the License at 71aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * 81aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 91aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * 101aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * Unless required by applicable law or agreed to in writing, software 111aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 121aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 131aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * See the License for the specific language governing permissions and 141aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber * limitations under the License. 151aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber */ 161aec397b1fdea7db4120dbe55b6995bb2a9d9138Andreas Huber 17c9410c7e62a33fd7599b2f3e025093a2d171577eAndreas Huber#include "StringType.h" 18c9410c7e62a33fd7599b2f3e025093a2d171577eAndreas Huber 19a72e0d2be173cebf62f728b9d215808bd862f219Iliyan Malchev#include <hidl-util/Formatter.h> 20c9410c7e62a33fd7599b2f3e025093a2d171577eAndreas Huber 21c9410c7e62a33fd7599b2f3e025093a2d171577eAndreas Hubernamespace android { 22c9410c7e62a33fd7599b2f3e025093a2d171577eAndreas Huber 23c9410c7e62a33fd7599b2f3e025093a2d171577eAndreas HuberStringType::StringType() {} 24c9410c7e62a33fd7599b2f3e025093a2d171577eAndreas Huber 25979e099f1163ff75beed5776cd01fb409b90a0cdSteven Morelandvoid StringType::addNamedTypesToSet(std::set<const FQName> &) const { 26979e099f1163ff75beed5776cd01fb409b90a0cdSteven Moreland // do nothing 27979e099f1163ff75beed5776cd01fb409b90a0cdSteven Moreland} 28979e099f1163ff75beed5776cd01fb409b90a0cdSteven Moreland 29979e099f1163ff75beed5776cd01fb409b90a0cdSteven Morelandstd::string StringType::getCppType(StorageMode mode, 30979e099f1163ff75beed5776cd01fb409b90a0cdSteven Moreland std::string *extra, 31979e099f1163ff75beed5776cd01fb409b90a0cdSteven Moreland bool specifyNamespaces) const { 32881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber extra->clear(); 33881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 34979e099f1163ff75beed5776cd01fb409b90a0cdSteven Moreland const std::string base = 35979e099f1163ff75beed5776cd01fb409b90a0cdSteven Moreland std::string(specifyNamespaces ? "::android::hardware::" : "") 36979e099f1163ff75beed5776cd01fb409b90a0cdSteven Moreland + "hidl_string"; 37881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 38881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber switch (mode) { 39881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber case StorageMode_Stack: 40881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber return base; 41881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 42881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber case StorageMode_Argument: 43881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber return "const " + base + "&"; 44881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 45881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber case StorageMode_Result: 46881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber return "const " + base + "*"; 47881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber } 48881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber} 49881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 504c865b72b320a46f326a335cfd326b66b0e10f67Andreas Huberstd::string StringType::getJavaType( 514c865b72b320a46f326a335cfd326b66b0e10f67Andreas Huber std::string *extra, bool /* forInitializer */) const { 524c865b72b320a46f326a335cfd326b66b0e10f67Andreas Huber extra->clear(); 532831d5145675ead9f2fb767bf5fe4ae56b88349fAndreas Huber return "String"; 542831d5145675ead9f2fb767bf5fe4ae56b88349fAndreas Huber} 552831d5145675ead9f2fb767bf5fe4ae56b88349fAndreas Huber 562831d5145675ead9f2fb767bf5fe4ae56b88349fAndreas Huberstd::string StringType::getJavaSuffix() const { 572831d5145675ead9f2fb767bf5fe4ae56b88349fAndreas Huber return "String"; 582831d5145675ead9f2fb767bf5fe4ae56b88349fAndreas Huber} 592831d5145675ead9f2fb767bf5fe4ae56b88349fAndreas Huber 60881227d860c59471eee31d39946e96ce2daa35d6Andreas Hubervoid StringType::emitReaderWriter( 61881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber Formatter &out, 62881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber const std::string &name, 63881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber const std::string &parcelObj, 64881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber bool parcelObjIsPointer, 65881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber bool isReader, 66881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber ErrorMode mode) const { 67549e2598843dcc092a6049bbd9e209c249b1b11aIliyan Malchev const std::string parentName = "_hidl_" + name + "_parent"; 68881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber out << "size_t " << parentName << ";\n\n"; 69881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 70881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber const std::string parcelObjDeref = 71881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber parcelObj + (parcelObjIsPointer ? "->" : "."); 72881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 73881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber if (isReader) { 74881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber out << name 758a82ff7ce6b5c0288b5239e25e1cbd1f5d8e3d27Andreas Huber << " = (const ::android::hardware::hidl_string *)" 76881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << parcelObjDeref 77881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << "readBuffer(" 78881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << "&" 79881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << parentName 80881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << ");\n"; 81881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 82881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber out << "if (" 83881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << name 84881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << " == nullptr) {\n"; 85881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 86881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber out.indent(); 87881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 88549e2598843dcc092a6049bbd9e209c249b1b11aIliyan Malchev out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; 89881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber handleError2(out, mode); 90881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 91881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber out.unindent(); 92881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber out << "}\n\n"; 93881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber } else { 94549e2598843dcc092a6049bbd9e209c249b1b11aIliyan Malchev out << "_hidl_err = " 95881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << parcelObjDeref 96881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << "writeBuffer(&" 97881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << name 98881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << ", sizeof(" 99881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << name 100881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << "), &" 101881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << parentName 102881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber << ");\n"; 103881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 104881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber handleError(out, mode); 105881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber } 106881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 107881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber emitReaderWriterEmbedded( 108881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber out, 109f9d49f1468bd65595f6f0ae5f4d7300f4e95edf8Andreas Huber 0 /* depth */, 110881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber name, 111881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber isReader /* nameIsPointer */, 112881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber parcelObj, 113881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber parcelObjIsPointer, 114881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber isReader, 115881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber mode, 116881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber parentName, 117881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber "0 /* parentOffset */"); 118881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber} 119881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 120881227d860c59471eee31d39946e96ce2daa35d6Andreas Hubervoid StringType::emitReaderWriterEmbedded( 121881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber Formatter &out, 122f9d49f1468bd65595f6f0ae5f4d7300f4e95edf8Andreas Huber size_t /* depth */, 123881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber const std::string &name, 124881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber bool nameIsPointer, 125881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber const std::string &parcelObj, 126881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber bool parcelObjIsPointer, 127881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber bool isReader, 128881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber ErrorMode mode, 129881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber const std::string &parentName, 130881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber const std::string &offsetText) const { 131881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber emitReaderWriterEmbeddedForTypeName( 132881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber out, 133881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber name, 134881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber nameIsPointer, 135881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber parcelObj, 136881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber parcelObjIsPointer, 137881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber isReader, 138881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber mode, 139881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber parentName, 140881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber offsetText, 1418a82ff7ce6b5c0288b5239e25e1cbd1f5d8e3d27Andreas Huber "::android::hardware::hidl_string", 142881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber "" /* childName */); 143881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber} 144881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 14585eabdbe56720dcdcf130e5ca83129d47b143768Andreas Hubervoid StringType::emitJavaFieldInitializer( 14685eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber Formatter &out, const std::string &fieldName) const { 14785eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber out << "String " 14885eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << fieldName 14985eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << " = new String();\n"; 15085eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber} 15185eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber 15285eabdbe56720dcdcf130e5ca83129d47b143768Andreas Hubervoid StringType::emitJavaFieldReaderWriter( 15385eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber Formatter &out, 1544c865b72b320a46f326a335cfd326b66b0e10f67Andreas Huber size_t /* depth */, 155709b62dbda6184770bb34470ff550e02c1643e67Andreas Huber const std::string &parcelName, 15685eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber const std::string &blobName, 15785eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber const std::string &fieldName, 15885eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber const std::string &offset, 15985eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber bool isReader) const { 16085eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber if (isReader) { 161709b62dbda6184770bb34470ff550e02c1643e67Andreas Huber out << "\n" 162709b62dbda6184770bb34470ff550e02c1643e67Andreas Huber << parcelName 163709b62dbda6184770bb34470ff550e02c1643e67Andreas Huber << ".readEmbeddedBuffer(\n"; 16485eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber 16585eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber out.indent(); 16685eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber out.indent(); 16785eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber 16885eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber out << blobName 16985eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << ".handle(),\n" 17085eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << offset 17185eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << " + 0 /* offsetof(hidl_string, mBuffer) */);\n\n"; 17285eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber 17385eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber out.unindent(); 17485eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber out.unindent(); 17585eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber 17685eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber out << fieldName 17785eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << " = " 17885eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << blobName 17985eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << ".getString(" 18085eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << offset 18185eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << ");\n"; 18285eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber 18385eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber return; 18485eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber } 18585eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber 18685eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber out << blobName 18785eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << ".putString(" 18885eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << offset 18985eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << ", " 19085eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << fieldName 19185eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber << ");\n"; 19285eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber} 19385eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber 194881227d860c59471eee31d39946e96ce2daa35d6Andreas Huberbool StringType::needsEmbeddedReadWrite() const { 195881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber return true; 196881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber} 197881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 198881227d860c59471eee31d39946e96ce2daa35d6Andreas Huberbool StringType::resultNeedsDeref() const { 199881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber return true; 200881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber} 201881227d860c59471eee31d39946e96ce2daa35d6Andreas Huber 2025158db484e5ab302368f191d75d5b1334c270e52Zhuoyao Zhangstatus_t StringType::emitVtsTypeDeclarations(Formatter &out) const { 2035158db484e5ab302368f191d75d5b1334c270e52Zhuoyao Zhang out << "type: TYPE_STRING\n"; 2045158db484e5ab302368f191d75d5b1334c270e52Zhuoyao Zhang return OK; 2055158db484e5ab302368f191d75d5b1334c270e52Zhuoyao Zhang} 2065158db484e5ab302368f191d75d5b1334c270e52Zhuoyao Zhang 20785eabdbe56720dcdcf130e5ca83129d47b143768Andreas Hubervoid StringType::getAlignmentAndSize(size_t *align, size_t *size) const { 20885eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber *align = 8; // hidl_string 20985eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber *size = 24; 21085eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber} 21185eabdbe56720dcdcf130e5ca83129d47b143768Andreas Huber 212c9410c7e62a33fd7599b2f3e025093a2d171577eAndreas Huber} // namespace android 213c9410c7e62a33fd7599b2f3e025093a2d171577eAndreas Huber 214