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- /**
- * Tencent is pleased to support the open source community by making Tars available.
- *
- * Copyright (C) 2016THL A29 Limited, a Tencent company. All rights reserved.
- *
- * Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
- * in compliance with the License. You may obtain a copy of the License at
- *
- * https://opensource.org/licenses/BSD-3-Clause
- *
- * 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 "code_generator.h"
- string CodeGenerator::generateJS(const EnumPtr &pPtr, const string &sNamespace)
- {
- ostringstream s;
- bool bDependent = false;
- if (_bEnumReverseMappings)
- {
- s << TAB << "(function(" << pPtr->getId() << ") {" << endl;
- INC_TAB;
- int nenum = -1;
- vector<TypeIdPtr>& member = pPtr->getAllMemberPtr();
- for (size_t i = 0; i < member.size(); i++)
- {
- bDependent |= isDependent(sNamespace, member[i]->getId());
- if (member[i]->hasDefault())
- {
- nenum = TC_Common::strto<int>(member[i]->def());
- }
- else
- {
- nenum++;
- }
- s << TAB << pPtr->getId() << "[" << pPtr->getId() << "[\"" << member[i]->getId() << "\"] = " << TC_Common::tostr(nenum) << "] = "
- << "\"" << member[i]->getId() << "\";" << endl;
- }
- DEL_TAB;
- s << TAB << "}(" << sNamespace << "." << pPtr->getId() << " = {}));" << endl;
- }
- else
- {
- s << TAB << sNamespace << "." << pPtr->getId() << " = {" << endl;
- INC_TAB;
- int nenum = -1;
- vector<TypeIdPtr>& member = pPtr->getAllMemberPtr();
- for (size_t i = 0; i < member.size(); i++)
- {
- bDependent |= isDependent(sNamespace, member[i]->getId());
- if (member[i]->hasDefault())
- {
- nenum = TC_Common::strto<int>(member[i]->def());
- }
- else
- {
- nenum++;
- }
- s << TAB << "\"" << member[i]->getId() << "\" : " << TC_Common::tostr(nenum) << (i < member.size() - 1 ? "," : "") << endl;
- }
- DEL_TAB;
- s << TAB << "};" << endl;
- }
- s << TAB << sNamespace << "." << pPtr->getId() << "._classname = \"" << sNamespace << "." << pPtr->getId() << "\";" << endl;
- s << TAB << sNamespace << "." << pPtr->getId() << "._write = function(os, tag, val) { return os.writeInt32(tag, val); };" << endl;
- s << TAB << sNamespace << "." << pPtr->getId() << "._read = function(is, tag, def) { return is.readInt32(tag, true, def); };" << endl;
- if (!_bMinimalMembers || _bEntry || bDependent || isDependent(sNamespace, pPtr->getId())) {
- return s.str();
- } else {
- return "";
- }
- }
- string CodeGenerator::generateJS(const ConstPtr &pPtr, const string &sNamespace, bool &bNeedStream)
- {
- if (_bMinimalMembers && !_bEntry && !isDependent(sNamespace, pPtr->getTypeIdPtr()->getId()))
- {
- return "";
- }
- ostringstream s;
- if (_bStringBinaryEncoding && GET_CONST_GRAMMAR_PTR(pPtr)->t == CONST_GRAMMAR(STRING))
- {
- bNeedStream = true;
- }
- s << TAB << sNamespace << "." << pPtr->getTypeIdPtr()->getId() << " = " << getDefault(pPtr->getTypeIdPtr(), GET_CONST_GRAMMAR_PTR(pPtr)->v, sNamespace, false) << ";" << endl;
- return s.str();
- }
- string CodeGenerator::generateJS(const StructPtr &pPtr, const string &sNamespace, bool &bNeedAssert, bool &bQuickFunc)
- {
- if (_bMinimalMembers && !_bEntry && !isDependent(sNamespace, pPtr->getId()))
- {
- return "";
- }
- ostringstream s;
- vector<TypeIdPtr>& member = pPtr->getAllMemberPtr();
- s << TAB << sNamespace << "." << pPtr->getId() << " = function() {"<< endl;
- INC_TAB;
- for (size_t i = 0; i < member.size(); i++)
- {
- s << TAB << "this." << member[i]->getId() << " = " << getDefault(member[i], member[i]->def(), sNamespace) << ";" << endl;
- }
- {
- s << TAB << "this._classname = \"" << sNamespace << "." << pPtr->getId() << "\";" << endl;
- }
- DEL_TAB;
- s << TAB << "};" << endl;
- s << TAB << sNamespace << "." << pPtr->getId() << "._classname = \"" << sNamespace << "." << pPtr->getId() << "\";" << endl;
- string sProto = TC_Common::replace(pPtr->getSid(), "::", ".");
- s << TAB << sProto << "._write = function (os, tag, value) { os.writeStruct(tag, value); };" << endl;
- s << TAB << sProto << "._read = function (is, tag, def) { return is.readStruct(tag, true, def); };" << endl;
- //_readFrom
- s << TAB << sNamespace << "." << pPtr->getId() << "._readFrom = function (is) {" << endl;
- INC_TAB;
- s << TAB << "var tmp = new " << sNamespace << "." << pPtr->getId() << ";" << endl;
- for (size_t i = 0; i < member.size(); i++)
- {
- string sFuncName = toFunctionName(member[i], "read");
- s << TAB << "tmp." << member[i]->getId() << " = is." << sFuncName << "(" << member[i]->getTag()
- << ", " << (member[i]->isRequire()?"true":"false") << ", ";
- if (isSimple(member[i]->getTypePtr()))
- {
- s << getDefault(member[i], member[i]->def(), sNamespace)
- << representArgument(member[i]->getTypePtr());
- }
- else
- {
- s << getDataType(member[i]->getTypePtr());
- }
- s << ");" << endl;
- }
- s << TAB << "return tmp;" << endl;
- DEL_TAB;
- s << TAB << "};" << endl;
- //_writeTo
- s << TAB << sNamespace << "." << pPtr->getId() << ".prototype._writeTo = function (os) {" << endl;
- INC_TAB;
- for (size_t i = 0; i < member.size(); i++)
- {
- string sFuncName = toFunctionName(member[i], "write");
- s << TAB << "os." << sFuncName << "(" << member[i]->getTag() << ", this." << member[i]->getId()
- << representArgument(member[i]->getTypePtr()) << ");" << endl;
- }
- DEL_TAB;
- s << TAB << "};" << endl;
- /*
- * Size Optimize:
- * Remove <mutil_map> support.
- * Remove toBinBuffer, readFromObject, toObject, new, create members.
- */
- if (_iOptimizeLevel == Os)
- {
- return s.str();
- }
- //_equal
- vector<string> key = pPtr->getKey();
-
- s << TAB << sNamespace << "." << pPtr->getId() << ".prototype._equal = function (" << (key.size() > 0 ? "anItem" : "") << ") {" << endl;
-
- INC_TAB;
- if (key.size() > 0)
- {
- s << TAB << "return ";
- for (size_t i = 0; i < key.size(); i++)
- {
- for (size_t ii =0; ii < member.size(); ii++)
- {
- if (key[i] != member[ii]->getId())
- {
- continue;
- }
- if (isSimple(member[i]->getTypePtr()))
- {
- s << (i==0?"":TAB + TAB) << "this." << key[i] << " === " << "anItem." << key[i];
- }
- else
- {
- s << (i==0?"":TAB + TAB) << "this._equal(" << "anItem)";
- }
- }
- if (i != key.size() - 1)
- {
- s << " && " << endl;
- }
- }
- s << ";" << endl;
- }
- else
- {
- bNeedAssert = true;
- s << TAB << "assert.fail(\"this structure not define key operation\");" << endl;
- }
- DEL_TAB;
- s << TAB << "};" << endl;
- //_genKey
- s << TAB << sNamespace << "." << pPtr->getId() << ".prototype._genKey = function () {" << endl;
- INC_TAB;
- s << TAB << "if (!this._proto_struct_name_) {" << endl;
- INC_TAB;
- s << TAB << "this._proto_struct_name_ = \"STRUCT\" + Math.random();" << endl;
- DEL_TAB;
- s << TAB << "}" << endl;
- s << TAB << "return this._proto_struct_name_;" << endl;
- DEL_TAB;
- s << TAB << "};" << endl;
- //toObject
- s << TAB << sNamespace << "." << pPtr->getId() << ".prototype.toObject = function() { "<< endl;
- INC_TAB;
- s << TAB << "return {" << endl;
- for (size_t i = 0; i < member.size(); i++)
- {
- INC_TAB;
- if (i > 0 && i < member.size()) {
- s << "," << endl;
- }
- if (isSimple(member[i]->getTypePtr())) {
- s << TAB << "\"" << member[i]->getId() << "\" : this." << member[i]->getId();
- }
- else {
- s << TAB << "\"" << member[i]->getId() << "\" : this." << member[i]->getId() << ".toObject()";
- }
- DEL_TAB;
- }
- s << endl;
- s << TAB << "};" << endl;
- DEL_TAB;
- s << TAB << "};" << endl;
- //readFromObject
- s << TAB << sNamespace << "." << pPtr->getId() << ".prototype.readFromObject = function(json) { "<< endl;
- INC_TAB;
- for (size_t i = 0; i < member.size(); i++)
- {
- if (isSimple(member[i]->getTypePtr())) {
- s << TAB << "_hasOwnProperty.call(json, \"" << member[i]->getId() << "\") && (this." << member[i]->getId() << " = json." << member[i]->getId() << ");" << endl;
- } else {
- s << TAB << "_hasOwnProperty.call(json, \"" << member[i]->getId() << "\") && (this." << member[i]->getId() << ".readFromObject(json." << member[i]->getId() << "));" << endl;
- }
- bQuickFunc = true;
- }
- s << TAB << "return this;" << endl;
- DEL_TAB;
- s << TAB << "};" << endl;
- //toBinBuffer
- s << TAB << sNamespace << "." << pPtr->getId() << ".prototype.toBinBuffer = function () {" << endl;
- INC_TAB;
- s << TAB << "var os = new " << IDL_NAMESPACE_STR << "Stream." << IDL_TYPE << "OutputStream();" << endl;
- s << TAB << "this._writeTo(os);" << endl;
- s << TAB << "return os.getBinBuffer();" << endl;
- DEL_TAB;
- s << TAB << "};" << endl;
- //new
- s << TAB << sNamespace << "." << pPtr->getId() << ".new = function () {" << endl;
- INC_TAB;
- s << TAB << "return new " << sNamespace << "." << pPtr->getId() << "();" << endl;
- DEL_TAB;
- s << TAB << "};" << endl;
- //create
- s << TAB << sNamespace << "." << pPtr->getId() << ".create = function (is) {" << endl;
- INC_TAB;
- s << TAB << "return " << sNamespace << "." << pPtr->getId() << "._readFrom(is);" << endl;
- DEL_TAB;
- s << TAB << "};" << endl;
- return s.str();
- }
- string CodeGenerator::generateJS(const NamespacePtr &pPtr, bool &bNeedStream, bool &bNeedAssert, bool &bQuickFunc)
- {
- ostringstream sstr;
- vector<StructPtr> ss(pPtr->getAllStructPtr());
- for (size_t last = 0; last != ss.size() && ss.size() != 0;)
- {
- last = ss.size();
- for (vector<StructPtr>::iterator iter=ss.begin(); iter!=ss.end();)
- {
- string str = generateJS(*iter, pPtr->getId(), bNeedAssert, bQuickFunc);
- if (!str.empty()) {
- sstr << str << endl;
- iter = ss.erase(iter);
-
- } else {
- iter++;
- }
- }
- }
- ostringstream cstr;
- vector<ConstPtr> &cs = pPtr->getAllConstPtr();
- for (size_t i = 0; i < cs.size(); i++)
- {
- string str = generateJS(cs[i], pPtr->getId(), bNeedStream);
- if (!str.empty()) {
- cstr << str << endl;
- }
- }
- ostringstream estr;
- vector<EnumPtr> & es = pPtr->getAllEnumPtr();
- for (size_t i = 0; i < es.size(); i++)
- {
- string str = generateJS(es[i], pPtr->getId());
-
- if (!str.empty()) {
- estr << str << endl;
- }
- }
- ostringstream str;
- if (!estr.str().empty()) str << estr.str();
- if (!cstr.str().empty()) str << cstr.str();
- if (!sstr.str().empty())
- {
- bNeedStream = true;
- str << sstr.str();
- }
- return str.str();
- }
- bool CodeGenerator::generateJS(const ContextPtr &pPtr)
- {
- vector<NamespacePtr> namespaces = pPtr->getNamespaces();
- ostringstream istr;
- set<string> setNamespace;
- for(size_t i = 0; i < namespaces.size(); i++)
- {
- if (setNamespace.count(namespaces[i]->getId()) == 0)
- {
- istr << TAB << "var " << namespaces[i]->getId() << " = " << namespaces[i]->getId() << " || {};" << endl;
- istr << TAB << "module.exports." << namespaces[i]->getId() << " = " << namespaces[i]->getId() << ";" << endl << endl;
- setNamespace.insert(namespaces[i]->getId());
- }
- }
- // generate encoders and decoders
- ostringstream estr;
- bool bNeedAssert = false;
- bool bNeedStream = false;
- bool bQuickFunc = false;
- for(size_t i = 0; i < namespaces.size(); i++)
- {
- estr << generateJS(namespaces[i], bNeedStream, bNeedAssert, bQuickFunc);
- }
- if (estr.str().empty())
- {
- return false;
- }
- // generate module imports
- ostringstream ostr;
- for (map<string, ImportFile>::iterator it = _mapFiles.begin(); it != _mapFiles.end(); it++)
- {
- if (it->second.sModule.empty()) continue;
- if (estr.str().find(it->second.sModule + ".") == string::npos) continue;
- ostr << "var " << it->second.sModule << " = require(\"" << it->second.sFile << "\");" << endl;
- }
- // concat generated code
- ostringstream sstr;
- sstr << printHeaderRemark("Structure");
- sstr << DISABLE_ESLINT << endl;
- sstr << endl;
- sstr << "\"use strict\";" << endl << endl;
- if (bNeedAssert)
- {
- sstr << "var assert = require(\"assert\");" << endl;
- }
- if (bNeedStream)
- {
- sstr << "var " << IDL_NAMESPACE_STR << "Stream = require(\"" << _sStreamPath << "\");" << endl;
- }
- if (bQuickFunc)
- {
- sstr << endl;
- sstr << "var _hasOwnProperty = Object.prototype.hasOwnProperty;" << endl;
- }
- sstr << ostr.str() << endl;
- sstr << istr.str();
- sstr << estr.str() << endl;
- string sFileName = TC_File::excludeFileExt(_sToPath + TC_File::extractFileName(pPtr->getFileName())) + IDL_TYPE + ".js";
- TC_File::makeDirRecursive(_sToPath);
- makeUTF8File(sFileName, sstr.str());
- return true;
- }
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