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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::generatePing(const NamespacePtr &nPtr, const InterfacePtr &pPtr)
- {
- ostringstream str;
- str << TAB << "var __" << nPtr->getId() << "_" << pPtr->getId() << "$" << TC_Common::lower(IDL_NAMESPACE_STR) << "_ping$RE = function (_ret) {" << endl;
- INC_TAB;
- str << TAB << "if (this.getRequestVersion() === " << PROTOCOL_SIMPLE << " || this.getRequestVersion() === " << PROTOCOL_COMPLEX << ") {" << endl;
- INC_TAB;
- str << TAB << "var " << PROTOCOL_VAR << " = new " << IDL_NAMESPACE_STR << "Stream.UniAttribute();" << endl;
- str << TAB << PROTOCOL_VAR << "." << PROTOCOL_VAR << "Version = this.getRequestVersion();" << endl;
- str << TAB << PROTOCOL_VAR << ".writeInt32(\"\", _ret);" << endl << endl;
- str << TAB << "this.doResponse(" << PROTOCOL_VAR << ".encode());" << endl;
- DEL_TAB;
- str << TAB << "} else {" << endl;
- INC_TAB;
- str << TAB << "var os = new " << IDL_NAMESPACE_STR << "Stream." << IDL_TYPE << "OutputStream();" << endl;
- str << TAB << "os.writeInt32(0, _ret);" << endl << endl;
- str << TAB << "this.doResponse(os.getBinBuffer());" << endl;
- DEL_TAB;
- str << TAB << "}" << endl;
- DEL_TAB;
- str << TAB << "};" << endl << endl;
- str << TAB << nPtr->getId() << "." << pPtr->getId() << "Imp.prototype.__" << TC_Common::lower(IDL_NAMESPACE_STR) << "_ping = function (current) {" << endl;
- INC_TAB;
- str << TAB << "__" << nPtr->getId() << "_" << pPtr->getId() << "$" << TC_Common::lower(IDL_NAMESPACE_STR) << "_ping$RE.call(current, 0);" << endl << endl;
- str << TAB << "return " << IDL_NAMESPACE_STR << "Error.SUCCESS;" << endl;
- DEL_TAB;
- str << TAB << "};" << endl;
- return str.str();
- }
- string CodeGenerator::generateAsync(const NamespacePtr &nPtr, const InterfacePtr &pPtr, const OperationPtr &oPtr)
- {
- ostringstream str;
- string sParams = "";
- if (oPtr->getReturnPtr()->getTypePtr())
- {
- sParams += "_ret";
- // push the symbol into dependent list
- getDataType(oPtr->getReturnPtr()->getTypePtr());
- }
- vector<ParamDeclPtr> & vParamDecl = oPtr->getAllParamDeclPtr();
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- if (!vParamDecl[i]->isOut()) continue;
- sParams += (sParams.empty()?"":", ") + vParamDecl[i]->getTypeIdPtr()->getId();
- }
- str << TAB << "var __" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$RE = function (" << sParams << ") {" << endl;
- INC_TAB;
- if (sParams.empty())
- {
- str << TAB << "this.doResponse(new " << IDL_NAMESPACE_STR << "Stream.BinBuffer());" << endl;
- DEL_TAB;
- str << TAB << "};" << endl;
- return str.str();
- }
- str << TAB << "if (this.getRequestVersion() === " << PROTOCOL_SIMPLE << " || this.getRequestVersion() === " << PROTOCOL_COMPLEX << ") {" << endl;
- INC_TAB;
- str << TAB << "var " << PROTOCOL_VAR << " = new " << IDL_NAMESPACE_STR << "Stream.UniAttribute();" << endl;
- str << TAB << PROTOCOL_VAR << "." << PROTOCOL_VAR << "Version = this.getRequestVersion();" << endl;
- if (oPtr->getReturnPtr()->getTypePtr())
- {
- str << TAB << PROTOCOL_VAR << "." << toFunctionName(oPtr->getReturnPtr(), "write") << "(\"\", _ret"
- << representArgument(oPtr->getReturnPtr()->getTypePtr()) << ");" << endl;
- }
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- if (!vParamDecl[i]->isOut()) continue;
- str << TAB << PROTOCOL_VAR << "." << toFunctionName(vParamDecl[i]->getTypeIdPtr(), "write") << "(\""
- << vParamDecl[i]->getTypeIdPtr()->getId() << "\", " << vParamDecl[i]->getTypeIdPtr()->getId()
- << representArgument(vParamDecl[i]->getTypeIdPtr()->getTypePtr()) << ");" << endl;
- }
- str << endl;
- str << TAB << "this.doResponse(" << PROTOCOL_VAR << ".encode());" << endl;
- DEL_TAB;
- //// ========= 增加对 JSON_VERSION 支持
- str << TAB << "} else if (this.getRequestVersion() === " << PROTOCOL_JSON << ") {" << endl;
- INC_TAB;
- str << TAB << "var _data_ = {};" << endl;
- if (oPtr->getReturnPtr()->getTypePtr())
- {
- str << TAB << "_data_[\"tars_ret\"] = _ret;" << endl;
- }
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- if (!vParamDecl[i]->isOut())
- continue;
- str << TAB << "_data_[\"" << vParamDecl[i]->getTypeIdPtr()->getId() << "\"] = " << vParamDecl[i]->getTypeIdPtr()->getId()
- << ".toObject ? " << vParamDecl[i]->getTypeIdPtr()->getId() << ".toObject() : "
- << vParamDecl[i]->getTypeIdPtr()->getId() << ";" << endl;
- }
- str << endl;
- str << TAB << " this.doResponse(new TarsStream.BinBuffer(Buffer.from(JSON.stringify(_data_))));" << endl;
- DEL_TAB;
- //// =========
- str << TAB << "} else {" << endl;
- INC_TAB;
- str << TAB << "var os = new " << IDL_NAMESPACE_STR << "Stream." << IDL_TYPE << "OutputStream();" << endl;
- if (oPtr->getReturnPtr()->getTypePtr())
- {
- str << TAB << "os." << toFunctionName(oPtr->getReturnPtr(), "write") << "(0, _ret"
- << representArgument(oPtr->getReturnPtr()->getTypePtr()) << ");" << endl;
- }
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- if (!vParamDecl[i]->isOut()) continue;
- str << TAB << "os." << toFunctionName(vParamDecl[i]->getTypeIdPtr(), "write") << "("
- << (i + 1) << ", " << vParamDecl[i]->getTypeIdPtr()->getId()
- << representArgument(vParamDecl[i]->getTypeIdPtr()->getTypePtr()) << ");" << endl;
- }
- str << endl;
- str << TAB << "this.doResponse(os.getBinBuffer());" << endl;
- DEL_TAB;
- str << TAB << "}" << endl;
- DEL_TAB;
- str << TAB << "};" << endl;
- return str.str();
- }
- string CodeGenerator::generateDispatch(const NamespacePtr &nPtr, const InterfacePtr &pPtr, const OperationPtr &oPtr)
- {
- ostringstream str;
- vector<ParamDeclPtr> & vParamDecl = oPtr->getAllParamDeclPtr();
- str << TAB << nPtr->getId() << "." << pPtr->getId() << "Imp.prototype.__" << oPtr->getId() << " = function (current" << (vParamDecl.size() != 0 ? ", binBuffer" : "") << ") {" << endl;
- INC_TAB;
- ostringstream dstr;
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- dstr << TAB << "var " << vParamDecl[i]->getTypeIdPtr()->getId() << " = null;" << endl;
- }
- if (vParamDecl.size() != 0)
- {
- dstr << endl;
- }
- dstr << TAB << "if (current.getRequestVersion() === " << PROTOCOL_SIMPLE << " || current.getRequestVersion() === " << PROTOCOL_COMPLEX << ") {" << endl;
- INC_TAB;
- dstr << TAB << "var " << PROTOCOL_VAR << " = new " << IDL_NAMESPACE_STR << "Stream.UniAttribute();" << endl;
- dstr << TAB << PROTOCOL_VAR << "." << PROTOCOL_VAR << "Version = current.getRequestVersion();" << endl;
- dstr << TAB << PROTOCOL_VAR << ".decode(binBuffer);" << endl;
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- dstr << TAB << vParamDecl[i]->getTypeIdPtr()->getId()
- << " = " << PROTOCOL_VAR << "." << toFunctionName(vParamDecl[i]->getTypeIdPtr(), "read")
- << "(\"" << vParamDecl[i]->getTypeIdPtr()->getId() << "\"";
- if (!isSimple(vParamDecl[i]->getTypeIdPtr()->getTypePtr()) && !isBinBuffer(vParamDecl[i]->getTypeIdPtr()->getTypePtr()))
- {
- dstr << ", " << getDataType(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- }
- if (vParamDecl[i]->isOut())
- {
- dstr << ", " << getDefault(vParamDecl[i]->getTypeIdPtr(), "", nPtr->getId(), true)
- << representArgument(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- }
-
- dstr << ");" << endl;
- }
- DEL_TAB;
- //// ========= 增加对 JSON_VERSION 支持
- dstr << TAB << "} else if (current.getRequestVersion() === " << PROTOCOL_JSON << ") {" << endl;
- INC_TAB;
- dstr << TAB << "var _data_ = JSON.parse(binBuffer.toNodeBuffer());" << endl;
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- if (vParamDecl[i]->isOut())
- {
- //_data_.rsp ? rsp.readFromObject(_data_.rsp) : rsp;
- StructPtr sPtr = StructPtr::dynamicCast(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- VectorPtr vPtr = VectorPtr::dynamicCast(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- MapPtr mPtr = MapPtr::dynamicCast(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- if (sPtr || vPtr || mPtr)
- {
- dstr << TAB << vParamDecl[i]->getTypeIdPtr()->getId()
- << " = " << getDefault(vParamDecl[i]->getTypeIdPtr(), "", nPtr->getId(), true)
- << ";" << endl;
- dstr << TAB << "_data_." << vParamDecl[i]->getTypeIdPtr()->getId() << " ? " << vParamDecl[i]->getTypeIdPtr()->getId() << ".readFromObject("
- << "_data_." << vParamDecl[i]->getTypeIdPtr()->getId() << ") : " << vParamDecl[i]->getTypeIdPtr()->getId()
- << ";" << endl;
- }
- else
- {
- dstr << TAB << vParamDecl[i]->getTypeIdPtr()->getId()
- << " = _data_." << vParamDecl[i]->getTypeIdPtr()->getId() << " || " << getDefault(vParamDecl[i]->getTypeIdPtr(), "", nPtr->getId(), true)
- << ";" << endl;
- }
- }
- else
- {
- StructPtr sPtr = StructPtr::dynamicCast(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- VectorPtr vPtr = VectorPtr::dynamicCast(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- MapPtr mPtr = MapPtr::dynamicCast(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- if (sPtr || vPtr || mPtr)
- {
- dstr << TAB << vParamDecl[i]->getTypeIdPtr()->getId()
- << " = " << getDefault(vParamDecl[i]->getTypeIdPtr(), "", nPtr->getId(), true)
- << ";" << endl;
- dstr << TAB << vParamDecl[i]->getTypeIdPtr()->getId() << ".readFromObject("
- << "_data_." << vParamDecl[i]->getTypeIdPtr()->getId() << ")"
- << ";" << endl;
- }
- else
- {
- dstr << TAB << vParamDecl[i]->getTypeIdPtr()->getId()
- << " = _data_." << vParamDecl[i]->getTypeIdPtr()->getId()
- << ";" << endl;
- }
- }
- }
- DEL_TAB;
- //// =========
- dstr << TAB << "} else {" << endl;
- INC_TAB;
- dstr << TAB << "var is = new " << IDL_NAMESPACE_STR << "Stream." << IDL_TYPE << "InputStream(binBuffer);" << endl;
- string sParams = "";
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- sParams += ", " + vParamDecl[i]->getTypeIdPtr()->getId();
- dstr << TAB << vParamDecl[i]->getTypeIdPtr()->getId()
- << " = is." << toFunctionName(vParamDecl[i]->getTypeIdPtr(), "read") << "("
- << (i + 1) << ", " << (vParamDecl[i]->isOut() ? "false" : "true") << ", ";
- if (isSimple(vParamDecl[i]->getTypeIdPtr()->getTypePtr()))
- {
- dstr << getDefault(vParamDecl[i]->getTypeIdPtr(), vParamDecl[i]->getTypeIdPtr()->def(), nPtr->getId())
- << representArgument(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- }
- else
- {
- dstr << getDataType(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- }
- dstr << ");" << endl;
- }
- DEL_TAB;
- dstr << TAB << "}" << endl << endl;
- if (!sParams.empty())
- {
- str << dstr.str();
- }
- str << TAB << "current.sendResponse = __" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$RE;" << endl << endl;
- str << TAB << "this." << oPtr->getId() << "(current" << sParams << ");" << endl << endl;
- str << TAB << "return " << IDL_NAMESPACE_STR << "Error.SUCCESS;" << endl;
- DEL_TAB;
- str << TAB << "};" << endl;
- return str.str();
- }
- string CodeGenerator::generateJSServer(const NamespacePtr &nPtr, const InterfacePtr &pPtr, const OperationPtr &oPtr)
- {
- ostringstream str;
- str << TAB << nPtr->getId() << "." << pPtr->getId() << "Imp.prototype." << oPtr->getId() << " = function () {" << endl;
- INC_TAB;
- str << TAB << "assert.fail(\"" << oPtr->getId() << " function not implemented\");" << endl;
- DEL_TAB;
- str << TAB << "};" << endl;
- return str.str();
- }
- string CodeGenerator::generateJSServer(const InterfacePtr &pPtr, const NamespacePtr &nPtr)
- {
- ostringstream str;
- vector<OperationPtr> & vOperation = pPtr->getAllOperationPtr();
- // generate the implementation class
- str << TAB << nPtr->getId() << "." << pPtr->getId() << "Imp = function () { " << endl;
- INC_TAB;
- str << TAB << "this._name = undefined;" << endl;
- str << TAB << "this._worker = undefined;" << endl;
- DEL_TAB;
- str << TAB << "};" << endl << endl;
- // generate the initialize function
- str << TAB << nPtr->getId() << "." << pPtr->getId() << "Imp.prototype.initialize = function () {};" << endl << endl;
- // generate the dispatch function
- str << TAB << nPtr->getId() << "." << pPtr->getId() << "Imp.prototype.onDispatch = function (current, funcName, binBuffer) { " << endl;
- INC_TAB;
- str << TAB << "if (\"__\" + funcName in this) {" << endl;
- INC_TAB;
- str << TAB << "return this[\"__\" + funcName](current, binBuffer);" << endl;
- DEL_TAB;
- str << TAB << "} else {" << endl;
- INC_TAB;
- str << TAB << "return " << IDL_NAMESPACE_STR << "Error.SERVER.FUNC_NOT_FOUND;" << endl;
- DEL_TAB;
- str << TAB << "}" << endl;
- DEL_TAB;
- str << TAB << "};" << endl << endl;
- // generate the ping function
- str << generatePing(nPtr, pPtr) << endl;
- // generate functions
- for (size_t i = 0; i < vOperation.size(); i++)
- {
- str << generateJSServer(nPtr, pPtr, vOperation[i]) << endl;
- str << generateAsync(nPtr, pPtr, vOperation[i]) << endl;
- str << generateDispatch(nPtr, pPtr, vOperation[i]) << endl;
- }
- str << endl;
- return str.str();
- }
- string CodeGenerator::generateJSServer(const NamespacePtr &pPtr, bool &bNeedStream, bool &bNeedRpc, bool &bNeedAssert)
- {
- ostringstream str;
- vector<InterfacePtr> & is = pPtr->getAllInterfacePtr();
- for (size_t i = 0; i < is.size(); i++)
- {
- str << generateJSServer(is[i], pPtr) << endl;
- }
- if (is.size() != 0)
- {
- bNeedRpc = true;
- bNeedStream = true;
- bNeedAssert = true;
- }
- return str.str();
- }
- bool CodeGenerator::generateJSServer(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 server classes with 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);
- }
- bool bNeedRpc = false;
- for(size_t i = 0; i < namespaces.size(); i++)
- {
- estr << generateJSServer(namespaces[i], bNeedStream, bNeedRpc, bNeedAssert) << endl;
- }
- if (estr.str().empty())
- {
- return false;
- }
- // generate module imports
- ostringstream ostr;
- if (bNeedAssert)
- {
- ostr << TAB << "var assert = require(\"assert\");" << endl;
- }
- if (bNeedStream)
- {
- ostr << TAB << "var " << IDL_NAMESPACE_STR << "Stream = require(\"" << _sStreamPath << "\");" << endl;
- }
- if (bNeedRpc)
- {
- ostr << TAB << "var " << IDL_NAMESPACE_STR << "Error = require(\"" << _sRpcPath << "\").error;" << endl;
- }
- 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 << TAB << "var " << it->second.sModule << " = require(\"" << it->second.sFile << "\");" << endl;
- }
- if (bQuickFunc)
- {
- ostr << endl;
- ostr << TAB << "var _hasOwnProperty = Object.prototype.hasOwnProperty;" << endl;
- }
- ostringstream str;
- str << printHeaderRemark("Server");
- str << DISABLE_ESLINT << endl;
- str << endl;
- str << "\"use strict\";" << endl << endl;
- str << ostr.str() << endl;
- str << istr.str();
- str << estr.str() << endl;
- string sFileName = TC_File::excludeFileExt(_sToPath + TC_File::extractFileName(pPtr->getFileName())) + ".js";
- TC_File::makeDirRecursive(_sToPath);
- makeUTF8File(sFileName, str.str());
- return true;
- }
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