signalk-server
Version:
An implementation of a [Signal K](http://signalk.org) server for boats.
82 lines • 3.53 kB
JavaScript
;
/*
* BaconJS backward-compatibility shim
*
* The server uses BaconJS 3.x which has breaking API changes from 1.x/0.7.x.
* Plugins may bundle their own older BaconJS, causing version mismatches when
* they operate on Bacon.Bus objects from the server's StreamBundle.
*
* The critical incompatibility: BaconJS 3.x Event objects use boolean
* properties (event.isEnd), while 1.x uses methods (event.isEnd()). When a
* plugin's 1.x code subscribes to a server 3.x Bus, it receives 3.x Events
* and crashes with "TypeError: e.isEnd is not a function".
*
* This module solves the problem by:
* 1. Hooking Node's module resolution so ALL require('baconjs') calls in the
* process return the server's 3.x version — eliminating version mismatches
* 2. Patching 3.x to restore the .map('.property') string shorthand that
* existed in 1.x (used by plugins like signalk-to-nmea2000)
*
* This module MUST be imported before any other module that uses BaconJS.
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const module_1 = __importDefault(require("module"));
const Bacon = __importStar(require("baconjs"));
const serverBaconPath = require.resolve('baconjs');
const ModuleInternal = module_1.default;
const origResolveFilename = ModuleInternal._resolveFilename;
ModuleInternal._resolveFilename = function (request, parent, isMain, options) {
if (request === 'baconjs') {
return serverBaconPath;
}
return origResolveFilename.call(this, request, parent, isMain, options);
};
function patchMapShorthand(proto) {
const origMap = proto.map;
proto.map = function (f) {
if (typeof f === 'string' && f.startsWith('.')) {
const prop = f.substring(1);
return origMap.call(this, (v) => v !== null && v !== undefined ? v[prop] : undefined);
}
return origMap.call(this, f);
};
}
patchMapShorthand(Bacon.EventStream.prototype);
patchMapShorthand(Bacon.Property.prototype);
//# sourceMappingURL=baconjs-compat.js.map