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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"
- #define INVOKE_RETURN(protocol, prefix, params) \
- str << TAB << "return this._worker." << TC_Common::lower(protocol) << "_invoke(\"" << oPtr->getId() << "\", "; \
- str << "__" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$" << prefix << "E"; \
- str << "(" << sParams << params << "), arguments[arguments.length - 1], "; \
- str << "__" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$IF" << ").then("; \
- str << "__" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$" << prefix << "D, "; \
- str << "__" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$ER);" << endl;
- #define PROTOCOL_PARAMS (sParams.empty() ? "" : ", ") << "version"
- struct SortOperation
- {
- bool operator()(const OperationPtr &o1, const OperationPtr &o2)
- {
- return o1->getId() < o2->getId();
- }
- };
- string CodeGenerator::generateJSProxy(const NamespacePtr &nPtr, const InterfacePtr &pPtr, const OperationPtr &oPtr)
- {
- ostringstream str;
- vector<ParamDeclPtr> & vParamDecl = oPtr->getAllParamDeclPtr();
- bool bHasParamOut = false;
- string sParams = "";
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- if (vParamDecl[i]->isOut())
- {
- continue;
- }
- sParams += (sParams.empty()?"":", ") + vParamDecl[i]->getTypeIdPtr()->getId();
- }
- // generate function metadata (SharedFunctionInfo)
- str << TAB << "var __" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$IF = {" << endl;
- INC_TAB;
- str << TAB << "\"name\" : \"" << oPtr->getId() << "\"," << endl;
- str << TAB << "\"return\" : \"" << getClassName(oPtr->getReturnPtr()->getTypePtr()) << "\"," << endl;
- str << TAB << "\"arguments\" : [";
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- str << (i > 0 ? ", {" : "{") << endl;
- INC_TAB;
- str << TAB << "\"name\" : \"" << vParamDecl[i]->getTypeIdPtr()->getId() << "\"," << endl;
- str << TAB << "\"class\" : \"" << getClassName(vParamDecl[i]->getTypeIdPtr()->getTypePtr()) << "\"," << endl;
- if (vParamDecl[i]->isOut())
- {
- bHasParamOut = true;
- str << TAB << "\"direction\" : \"out\"" << endl;
- }
- else
- {
- str << TAB << "\"direction\" : \"in\"" << endl;
- }
- DEL_TAB;
- str << TAB << "}";
- }
- str << "]" << endl;
- DEL_TAB;
- str << TAB << "};" << endl << endl;
- // generate IDL Encoder ($IE)
- str << TAB << "var __" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$IE = function (" << sParams << ") {" << endl;
-
- INC_TAB;
- str << TAB << "var os = new " << IDL_NAMESPACE_STR << "Stream." << IDL_TYPE << "OutputStream();" << endl;
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- if (vParamDecl[i]->isOut()) continue;
- str << TAB << "os." << toFunctionName(vParamDecl[i]->getTypeIdPtr(), "write") << "("
- << (i + 1) << ", " << vParamDecl[i]->getTypeIdPtr()->getId()
- << representArgument(vParamDecl[i]->getTypeIdPtr()->getTypePtr()) << ");" << endl;
- // push the symbol into dependent list
- getDataType(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- }
- str << TAB << "return os.getBinBuffer();" << endl;
- DEL_TAB;
- str << TAB << "};" << endl << endl;
- // generate IDL Decoder ($ID)
- str << TAB << "var __" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$ID = function (data) {" << endl;
- INC_TAB;
- str << TAB << "try {" << endl;
- INC_TAB;
- if (oPtr->getReturnPtr()->getTypePtr() || bHasParamOut)
- {
- str << TAB << "var is = new " << IDL_NAMESPACE_STR << "Stream." << IDL_TYPE << "InputStream(data.response.sBuffer);" << endl;
- }
- str << TAB << "return {" << endl;
- INC_TAB;
- str << TAB << "\"request\" : data.request," << endl;
- str << TAB << "\"response\" : {" << endl;
- INC_TAB;
- str << TAB << "\"costtime\" : data.request.costtime";
- if (oPtr->getReturnPtr()->getTypePtr())
- {
- str << "," << endl;
- str << TAB << "\"return\""
- << " : is." << toFunctionName(oPtr->getReturnPtr(), "read") << "(0, true, ";
- if (isSimple(oPtr->getReturnPtr()->getTypePtr()))
- {
- str << getDefault(oPtr->getReturnPtr(), oPtr->getReturnPtr()->def(), nPtr->getId())
- << representArgument(oPtr->getReturnPtr()->getTypePtr());
- }
- else
- {
- str << getDataType(oPtr->getReturnPtr()->getTypePtr());
- }
- str << ")";
- }
- if (bHasParamOut)
- {
- str << "," << endl;
- str << TAB << "\"arguments\" : {" << endl;
- INC_TAB;
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- if (!vParamDecl[i]->isOut()) continue;
- str << TAB << "\"" << vParamDecl[i]->getTypeIdPtr()->getId() << "\""
- << " : is." << toFunctionName(vParamDecl[i]->getTypeIdPtr(), "read") << "(" << (i + 1) << ", true, ";
- if (isSimple(vParamDecl[i]->getTypeIdPtr()->getTypePtr()))
- {
- str << getDefault(vParamDecl[i]->getTypeIdPtr(), vParamDecl[i]->getTypeIdPtr()->def(), nPtr->getId())
- << representArgument(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- }
- else
- {
- str << getDataType(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- }
- str << ")";
- if (i == vParamDecl.size() - 1)
- {
- str << endl;
- }
- else
- {
- str << "," << endl;
- }
- }
- DEL_TAB;
- str << TAB << "}";
- }
- str << endl;
- DEL_TAB;
- str << TAB << "}" << endl;
- DEL_TAB;
- str << TAB << "};" << endl;
- DEL_TAB;
- str << TAB << "} catch (e) {" << endl;
- INC_TAB;
- str << TAB << "throw _makeError(data, e.message, " << IDL_NAMESPACE_STR << "Error.CLIENT.DECODE_ERROR);" << endl;
- DEL_TAB;
- str << TAB << "}" << endl;
- DEL_TAB;
- str << TAB << "};" << endl << endl;
- // generate Protocol Encoder ($PE)
- str << TAB << "var __" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$PE = function ("
- << sParams << (sParams.empty() ? "" : ", ") << "__$PROTOCOL$VERSION) {" << endl;
-
- INC_TAB;
- str << TAB << "var " << PROTOCOL_VAR << " = new " << IDL_NAMESPACE_STR << "Stream.UniAttribute();" << endl;
- str << TAB << PROTOCOL_VAR << "." << PROTOCOL_VAR << "Version = __$PROTOCOL$VERSION;" << endl;
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- if (vParamDecl[i]->isOut()) continue;
- str << TAB << PROTOCOL_VAR << "." << toFunctionName(vParamDecl[i]->getTypeIdPtr(), "write") << "(\""
- << vParamDecl[i]->getTypeIdPtr()->getId() << "\", " << vParamDecl[i]->getTypeIdPtr()->getId()
- << representArgument(vParamDecl[i]->getTypeIdPtr()->getTypePtr()) << ");" << endl;
- // push the symbol into dependent list
- getDataType(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- }
- str << TAB << "return " << PROTOCOL_VAR << ";" << endl;
- DEL_TAB;
- str << TAB << "};" << endl << endl;
- // generate Protocol Decoder ($PD)
- str << TAB << "var __" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$PD = function (data) {" << endl;
- INC_TAB;
- str << TAB << "try {" << endl;
- INC_TAB;
- if (oPtr->getReturnPtr()->getTypePtr() || bHasParamOut) {
- str << TAB << "var " << PROTOCOL_VAR << " = data.response." << PROTOCOL_VAR << ";" << endl;
- }
- str << TAB << "return {" << endl;
- INC_TAB;
- str << TAB << "\"request\" : data.request," << endl;
- str << TAB << "\"response\" : {" << endl;
- INC_TAB;
- str << TAB << "\"costtime\" : data.request.costtime";
- if (oPtr->getReturnPtr()->getTypePtr())
- {
- str << "," << endl;
- str << TAB << "\"return\" : " << PROTOCOL_VAR << "." << toFunctionName(oPtr->getReturnPtr(), "read") << "(\"\"";
- if (!isSimple(oPtr->getReturnPtr()->getTypePtr()) && !isBinBuffer(oPtr->getReturnPtr()->getTypePtr()))
- {
- str << ", " << getDataType(oPtr->getReturnPtr()->getTypePtr());
- }
- str << ", " << getDefault(oPtr->getReturnPtr(), "", nPtr->getId(), true)
- << representArgument(oPtr->getReturnPtr()->getTypePtr());
-
- str << ")";
- }
- if (bHasParamOut)
- {
- str << "," << endl;
- str << TAB << "\"arguments\" : {" << endl;
- INC_TAB;
- for (size_t i = 0; i < vParamDecl.size(); i++)
- {
- if (!vParamDecl[i]->isOut()) continue;
- str << 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()))
- {
- str << ", " << getDataType(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
- }
- str << ")";
- if (i == vParamDecl.size() - 1)
- {
- str << endl;
- }
- else
- {
- str << "," << endl;
- }
- }
- DEL_TAB;
- str << TAB << "}";
- }
- str << endl;
- DEL_TAB;
- str << TAB << "}" << endl;
- DEL_TAB;
- str << TAB << "};" << endl;
- DEL_TAB;
- str << TAB << "} catch (e) {" << endl;
- INC_TAB;
- str << TAB << "throw _makeError(data, e.message, " << IDL_NAMESPACE_STR << "Error.CLIENT.DECODE_ERROR);" << endl;
- DEL_TAB;
- str << TAB << "}" << endl;
- DEL_TAB;
- str << TAB << "};" << endl << endl;
- // generate error handler ($ER)
- str << TAB << "var __" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$ER = function (data) {" << endl;
- INC_TAB;
- str << TAB << "throw _makeError(data, \"Call " << pPtr->getId() << "::" << oPtr->getId() << " failed\");" << endl;
- DEL_TAB;
- str << TAB << "};" << endl << endl;
- // generate function body
- str << TAB << nPtr->getId() << "." << pPtr->getId() << "Proxy.prototype." << oPtr->getId() << " = function ("
- << sParams << ") {" << endl;
- INC_TAB;
- str << TAB << "var version = this._worker.version;" << endl;
- str << TAB << "if (version === " << PROTOCOL_SIMPLE << " || version === " << PROTOCOL_COMPLEX << ") {" << endl;
- INC_TAB;
- INVOKE_RETURN(PROTOCOL_VAR, "P", PROTOCOL_PARAMS);
- DEL_TAB;
- str << TAB << "} else {" << endl;
- INC_TAB;
- INVOKE_RETURN(IDL_NAMESPACE_STR, "I", "");
- DEL_TAB;
- str << TAB << "}" << endl;
- DEL_TAB;
- str << TAB << "};" << endl;
- // add the function into the prototype of the proxy class
- str << TAB << nPtr->getId() << "." << pPtr->getId() << "Proxy." << oPtr->getId() << " = "
- << "__" << nPtr->getId() << "_" << pPtr->getId() << "$" << oPtr->getId() << "$IF;" << endl;
- return str.str();
- }
- string CodeGenerator::generateJSProxy(const NamespacePtr &nPtr, const InterfacePtr &pPtr)
- {
- ostringstream str;
- vector<OperationPtr> & vOperation = pPtr->getAllOperationPtr();
- sort(vOperation.begin(), vOperation.end(), SortOperation());
- for (size_t i = 0; i < vOperation.size(); i++)
- {
- str << generateJSProxy(nPtr, pPtr, vOperation[i]) << endl;
- }
- return str.str();
- }
- string CodeGenerator::generateJSProxy(const NamespacePtr &nPtr, bool &bNeedRpc, bool &bNeedStream)
- {
- ostringstream str;
- vector<InterfacePtr> & is = nPtr->getAllInterfacePtr();
- for (size_t i = 0; i < is.size(); i++)
- {
- str << generateJSProxy(nPtr, is[i]) << endl;
- }
- if (is.size() != 0)
- {
- bNeedRpc = true;
- bNeedStream = true;
- }
- return str.str();
- }
- bool CodeGenerator::generateJSProxy(const ContextPtr &cPtr)
- {
- vector<NamespacePtr> namespaces = cPtr->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());
- }
- }
- set<string> setInterface;
- for(size_t i = 0; i < namespaces.size(); i++)
- {
- vector<InterfacePtr> & is = namespaces[i]->getAllInterfacePtr();
- for (size_t ii = 0; ii < is.size(); ii++)
- {
- if (setInterface.count(namespaces[i]->getId() + "::" + is[ii]->getId()) != 0)
- {
- continue;
- }
- setInterface.insert(namespaces[i]->getId() + "::" + is[ii]->getId());
- istr << TAB << namespaces[i]->getId() << "." << is[ii]->getId() << "Proxy = function () {" << endl;
- INC_TAB;
- istr << TAB << "this._name = undefined;" << endl;
- istr << TAB << "this._worker = undefined;" << endl;
- DEL_TAB;
- istr << TAB << "};" << endl << endl;
- istr << TAB << namespaces[i]->getId() << "." << is[ii]->getId() << "Proxy.prototype.setTimeout = function (iTimeout) {" << endl;
- INC_TAB;
- istr << TAB << "this._worker.timeout = iTimeout;" << endl;
- DEL_TAB;
- istr << TAB << "};" << endl << endl;
- istr << TAB << namespaces[i]->getId() << "." << is[ii]->getId() << "Proxy.prototype.getTimeout = function () {" << endl;
- INC_TAB;
- istr << TAB << "return this._worker.timeout;" << endl;
- DEL_TAB;
- istr << TAB << "};" << endl << endl;
- istr << TAB << namespaces[i]->getId() << "." << is[ii]->getId() << "Proxy.prototype.setVersion = function (iVersion) {" << endl;
- INC_TAB;
- istr << TAB << "this._worker.version = iVersion;" << endl;
- DEL_TAB;
- istr << TAB << "};" << endl << endl;
- istr << TAB << namespaces[i]->getId() << "." << is[ii]->getId() << "Proxy.prototype.getVersion = function () {" << endl;
- INC_TAB;
- istr << TAB << "return this._worker.version;" << endl;
- DEL_TAB;
- istr << TAB << "};" << endl;
- }
- }
- // generate proxy 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 << generateJSProxy(namespaces[i], bNeedRpc, bNeedStream);
- }
- 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("Client");
- 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 (bNeedRpc)
- {
- sstr << "var " << IDL_NAMESPACE_STR << "Error = require(\"" << _sRpcPath << "\").error;" << endl;
- }
- sstr << ostr.str() << endl;
- // generate helper functions
- if (bQuickFunc)
- {
- sstr << "var _hasOwnProperty = Object.prototype.hasOwnProperty;" << endl;
- }
- if (bNeedRpc)
- {
- sstr << TAB << "var _makeError = function (data, message, type) {" << endl;
- INC_TAB;
- sstr << TAB << "var error = new Error(message || \"\");" << endl;
- sstr << TAB << "error.request = data.request;" << endl;
- sstr << TAB << "error.response = {" << endl;
- INC_TAB;
- sstr << TAB << "\"costtime\" : data.request.costtime" << endl;
- DEL_TAB;
- sstr << TAB << "};" << endl;
- sstr << TAB << "if (type === " << IDL_NAMESPACE_STR << "Error.CLIENT.DECODE_ERROR) {" << endl;
- INC_TAB;
- sstr << TAB << "error.name = \"DECODE_ERROR\";" << endl;
- sstr << TAB << "error.response.error = {" << endl;
- INC_TAB;
- sstr << TAB << "\"code\" : type," << endl;
- sstr << TAB << "\"message\" : message" << endl;
- DEL_TAB;
- sstr << TAB << "};" << endl;
- DEL_TAB;
- sstr << TAB << "} else {" << endl;
- INC_TAB;
- sstr << TAB << "error.name = \"RPC_ERROR\";" << endl;
- sstr << TAB << "error.response.error = data.error;" << endl;
- DEL_TAB;
- sstr << TAB << "}" << endl;
- sstr << TAB << "return error;" << endl;
- DEL_TAB;
- sstr << TAB << "};" << endl;
- }
- if (bQuickFunc || bNeedRpc)
- {
- sstr << endl;
- }
- sstr << istr.str() << endl;
- sstr << estr.str() << endl;
- string sFileName = TC_File::excludeFileExt(_sToPath + TC_File::extractFileName(cPtr->getFileName())) + "Proxy.js";
- TC_File::makeDirRecursive(_sToPath);
- makeUTF8File(sFileName, sstr.str());
- return true;
- }
- #undef INVOKE_RETURN
- #undef PROTOCOL_PARAMS
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