embark-area-51/lib/core/modules/coderunner/codeRunner.js

92 lines
2.4 KiB
JavaScript

const RunCode = require('./runCode.js');
class CodeRunner {
constructor(options) {
this.config = options.config;
this.plugins = options.plugins;
this.logger = options.logger;
this.events = options.events;
this.ipc = options.ipc;
this.commands = [];
this.runCode = new RunCode();
this.registerIpcEvents();
this.IpcClientListen();
this.registerEvents();
this.registerCommands();
}
registerIpcEvents() {
if (!this.ipc.isServer()) {
return;
}
this.ipc.on('runcode:getCommands', (_err, callback) => {
let result = {web3Config: this.runCode.getWeb3Config(), commands: this.commands};
callback(null, result);
});
}
IpcClientListen() {
if (!this.ipc.isClient() || !this.ipc.connected) {
return;
}
this.ipc.listenTo('runcode:newCommand', (command) => {
if (command.varName) {
this.events.emit("runcode:register", command.varName, command.code);
} else {
this.events.request("runcode:eval", command.code);
}
});
}
registerEvents() {
this.events.on("runcode:register", this.registerVar.bind(this));
}
registerCommands() {
this.events.setCommandHandler('runcode:getContext', (cb) => {
cb(this.runCode.context);
});
this.events.setCommandHandler('runcode:eval', this.evalCode.bind(this));
}
registerVar(varName, code, toRecord = true) {
if (this.ipc.isServer() && toRecord) {
this.commands.push({varName, code});
this.ipc.broadcast("runcode:newCommand", {varName, code});
}
this.runCode.registerVar(varName, code);
}
evalCode(code, cb, forConsoleOnly = false) {
cb = cb || function() {};
const awaitIdx = code.indexOf('await');
if (awaitIdx > -1) {
if (awaitIdx < 2) {
let end = code.length;
if (code[end - 1] === ';') {
end--; // Remove the `;` because we add function calls
}
code = code.substring(5, end); // remove await keyword
} else {
code = `(async function() {${code}})();`;
}
}
let result = this.runCode.doEval(code);
if (forConsoleOnly && this.ipc.isServer()) {
this.commands.push({code});
this.ipc.broadcast("runcode:newCommand", {code});
}
if (result instanceof Promise && !result.on) {
return result.then((value) => { cb(null, value); }).catch(cb);
}
cb(null, result);
}
}
module.exports = CodeRunner;