322 lines
11 KiB
JavaScript
322 lines
11 KiB
JavaScript
let async = require('async');
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let fs = require('../core/fs.js');
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require('ejs');
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const Templates = {
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utils: require('./code_templates/utils.js.ejs'),
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vanilla_contract: require('./code_templates/vanilla-contract.js.ejs'),
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embarkjs_contract: require('./code_templates/embarkjs-contract.js.ejs'),
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exec_when_ready: require('./code_templates/exec-when-ready.js.ejs'),
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load_manager: require('./code_templates/load-manager.js.ejs'),
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define_when_env_loaded: require('./code_templates/define-when-env-loaded.js.ejs'),
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main_context: require('./code_templates/main-context.js.ejs'),
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define_web3_simple: require('./code_templates/define-web3-simple.js.ejs'),
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web3_connector: require('./code_templates/web3-connector.js.ejs'),
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do_when_loaded: require('./code_templates/do-when-loaded.js.ejs'),
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exec_when_env_loaded: require('./code_templates/exec-when-env-loaded.js.ejs')
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};
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class CodeGenerator {
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constructor(options) {
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this.blockchainConfig = options.blockchainConfig || {};
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this.contractsConfig = options.contractsConfig || {};
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this.storageConfig = options.storageConfig || {};
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this.communicationConfig = options.communicationConfig || {};
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this.contractsManager = options.contractsManager;
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this.plugins = options.plugins;
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this.events = options.events;
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}
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listenToCommands() {
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let self = this;
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this.events.setCommandHandlerOnce('provider-code', function(cb) {
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let providerCode = self.generateProvider(false);
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cb(providerCode);
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});
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// deprecated events; to remove in embark 2.7.0
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this.events.setCommandHandlerOnce('abi-vanila', function(cb) {
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let vanillaABI = self.generateABI({useEmbarkJS: false});
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let contractsJSON = self.generateContractsJSON();
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cb(vanillaABI, contractsJSON);
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});
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this.events.setCommandHandlerOnce('abi', function(cb) {
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let embarkJSABI = self.generateABI({useEmbarkJS: true});
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let contractsJSON = self.generateContractsJSON();
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cb(embarkJSABI, contractsJSON);
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});
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this.events.setCommandHandlerOnce('abi-contracts-vanila', function(cb) {
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let vanillaContractsABI = self.generateContracts(false, true, false);
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let contractsJSON = self.generateContractsJSON();
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cb(vanillaContractsABI, contractsJSON);
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});
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this.events.setCommandHandlerOnce('abi-vanila-deployment', function(cb) {
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let vanillaABI = self.generateABI({useEmbarkJS: false, deployment: true});
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let contractsJSON = self.generateContractsJSON();
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cb(vanillaABI, contractsJSON);
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});
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// new events
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this.events.setCommandHandlerOnce('code-vanila', function(cb) {
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let vanillaABI = self.generateABI({useEmbarkJS: false});
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let contractsJSON = self.generateContractsJSON();
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cb(vanillaABI, contractsJSON);
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});
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this.events.setCommandHandlerOnce('code', function(cb) {
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let embarkJSABI = self.generateABI({useEmbarkJS: true});
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let contractsJSON = self.generateContractsJSON();
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cb(embarkJSABI, contractsJSON);
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});
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this.events.setCommandHandlerOnce('code-contracts-vanila', function(cb) {
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let vanillaContractsABI = self.generateContracts(false, true, false);
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let contractsJSON = self.generateContractsJSON();
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cb(vanillaContractsABI, contractsJSON);
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});
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this.events.setCommandHandlerOnce('code-vanila-deployment', function(cb) {
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let vanillaABI = self.generateABI({useEmbarkJS: false, deployment: true});
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let contractsJSON = self.generateContractsJSON();
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cb(vanillaABI, contractsJSON);
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});
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}
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generateContext() {
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let result = "";
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result += Templates.main_context();
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result += Templates.load_manager();
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return result;
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}
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generateProvider(isDeployment) {
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let self = this;
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let result = "";
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let providerPlugins;
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// TODO: check contractsConfig for enabled
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if (self.blockchainConfig === {} || self.blockchainConfig.enabled === false) {
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return "";
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}
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result += Templates.utils();
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result += Templates.main_context();
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result += Templates.load_manager();
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result += Templates.define_when_env_loaded();
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if (this.plugins) {
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providerPlugins = this.plugins.getPluginsFor('clientWeb3Provider');
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}
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if (this.plugins && providerPlugins.length > 0) {
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providerPlugins.forEach(function(plugin) {
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result += plugin.generateProvider(self) + "\n";
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});
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} else {
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let web3Load;
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if (isDeployment) {
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let connection = "http://" + this.contractsConfig.deployment.host + ":" + this.contractsConfig.deployment.port;
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web3Load = Templates.define_web3_simple({url: connection, done: 'done();'});
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} else {
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let connectionList = "[" + this.contractsConfig.dappConnection.map((x) => '"' + x + '"').join(',') + "]";
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web3Load = Templates.web3_connector({connectionList: connectionList, done: 'done();'});
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}
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result += Templates.do_when_loaded({block: web3Load});
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}
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return result;
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}
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generateContracts(useEmbarkJS, isDeployment, useLoader) {
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let self = this;
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let result = "\n";
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let contractsPlugins;
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if (useLoader === false) {
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for (let className in this.contractsManager.contracts) {
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let contract = this.contractsManager.contracts[className];
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let abi = JSON.stringify(contract.abiDefinition);
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result += Templates.vanilla_contract({className: className, abi: abi, contract: contract, gasLimit: 6000000});
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}
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return result;
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}
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if (self.blockchainConfig === {} || self.blockchainConfig.enabled === false) {
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return "";
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}
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if (this.plugins) {
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contractsPlugins = this.plugins.getPluginsFor('contractGeneration');
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}
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if (this.plugins && contractsPlugins.length > 0) {
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contractsPlugins.forEach(function (plugin) {
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result += plugin.generateContracts({contracts: self.contractsManager.contracts});
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});
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} else {
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for (let className in this.contractsManager.contracts) {
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let contract = this.contractsManager.contracts[className];
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let abi = JSON.stringify(contract.abiDefinition);
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let gasEstimates = JSON.stringify(contract.gasEstimates);
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let block = "";
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if (useEmbarkJS) {
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let contractAddress = contract.deployedAddress ? ("'" + contract.deployedAddress + "'") : "undefined";
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block += Templates.embarkjs_contract({className: className, abi: abi, contract: contract, contractAddress: contractAddress, gasEstimates: gasEstimates});
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} else {
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block += Templates.vanilla_contract({className: className, abi: abi, contract: contract, gasLimit: (isDeployment ? 6000000 : false)});
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}
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result += Templates.exec_when_ready({block: block});
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}
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}
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return result;
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}
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generateContractCode(contract, gasLimit) {
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let abi = JSON.stringify(contract.abiDefinition);
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let block = "";
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block += Templates.vanilla_contract({className: contract.className, abi: abi, contract: contract, gasLimit: gasLimit});
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return block;
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}
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generateStorageInitialization(useEmbarkJS) {
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if (!useEmbarkJS || this.storageConfig === {}) return "";
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let result = "\n";
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result += Templates.define_when_env_loaded();
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result += this._getInitCode('storage', this.storageConfig);
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return result;
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}
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generateCommunicationInitialization(useEmbarkJS) {
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if (!useEmbarkJS || this.communicationConfig === {}) return "";
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let result = "\n";
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result += Templates.define_when_env_loaded();
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result += this._getInitCode('communication', this.communicationConfig);
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return result;
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}
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_getInitCode(codeType, config) {
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let result = "";
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let pluginsWithCode = this.plugins.getPluginsFor('initCode');
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for (let plugin of pluginsWithCode) {
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let initCodes = plugin.embarkjs_init_code[codeType] || [];
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for (let initCode of initCodes) {
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let [block, shouldInit] = initCode;
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if (shouldInit.call(plugin, config)) {
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result += Templates.exec_when_env_loaded({block: block});
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}
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}
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}
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return result;
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}
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generateABI(options) {
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let result = "";
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result += this.generateProvider(options.deployment);
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result += this.generateContracts(options.useEmbarkJS, options.deployment, true);
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result += this.generateStorageInitialization(options.useEmbarkJS);
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result += this.generateCommunicationInitialization(options.useEmbarkJS);
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return result;
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}
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generateContractsJSON() {
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let contracts = {};
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for (let className in this.contractsManager.contracts) {
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let contract = this.contractsManager.contracts[className];
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let contractJSON = {};
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contractJSON.contract_name = className;
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contractJSON.address = contract.deployedAddress;
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contractJSON.code = contract.code;
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contractJSON.runtime_bytecode = contract.runtimeBytecode;
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contractJSON.real_runtime_bytecode = contract.realRuntimeBytecode;
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contractJSON.swarm_hash = contract.swarmHash;
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contractJSON.gas_estimates = contract.gasEstimates;
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contractJSON.function_hashes = contract.functionHashes;
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contractJSON.abi = contract.abiDefinition;
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contracts[className] = contractJSON;
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}
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return contracts;
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}
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buildEmbarkJS(cb) {
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const self = this;
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let embarkjsCode = fs.readFileSync(fs.embarkPath('js/embark.js')).toString();
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let code = "";
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async.waterfall([
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function getWeb3Location(next) {
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self.events.request("version:get:web3", function(web3Version) {
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if (web3Version === "1.0.0-beta") {
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return next(null, fs.embarkPath("js/web3-1.0.min.js"));
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} else {
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self.events.request("version:getPackageLocation", "web3", web3Version, function(err, location) {
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return next(null, fs.dappPath(location));
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});
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}
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});
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},
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function getImports(web3Location, next) {
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web3Location = web3Location.replace(/\\/g, '/'); // Import paths must always have forward slashes
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code += "\nimport Web3 from '" + web3Location + "';\n";
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code += "\nimport web3 from 'Embark/web3';\n";
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next();
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},
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function getJSCode(next) {
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code += "\n" + embarkjsCode + "\n";
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let pluginsWithCode = self.plugins.getPluginsFor('embarkjsCode');
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for (let plugin of pluginsWithCode) {
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code += plugin.embarkjs_code.join('\n');
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}
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//code += "\n" + fs.readFileSync(fs.embarkPath('js/embarkjs/orbit.js')).toString();
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code += self.generateCommunicationInitialization(true);
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code += self.generateStorageInitialization(true);
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next();
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},
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function writeFile(next) {
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fs.mkdirpSync(fs.dappPath(".embark"));
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fs.writeFileSync(fs.dappPath(".embark", 'embark.js'), code);
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next();
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}
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], function(_err, _result) {
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cb();
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});
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}
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}
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module.exports = CodeGenerator;
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