| var LoaderLoadingError = require("./LoaderLoadingError"); |
| |
| module.exports = function loadLoader(loader, callback) { |
| if(typeof System === "object" && typeof System.import === "function") { |
| System.import(loader.path).catch(callback).then(function(module) { |
| loader.normal = typeof module === "function" ? module : module.default; |
| loader.pitch = module.pitch; |
| loader.raw = module.raw; |
| if(typeof loader.normal !== "function" && typeof loader.pitch !== "function") { |
| return callback(new LoaderLoadingError( |
| "Module '" + loader.path + "' is not a loader (must have normal or pitch function)" |
| )); |
| } |
| callback(); |
| }); |
| } else { |
| try { |
| var module = require(loader.path); |
| } catch(e) { |
| // it is possible for node to choke on a require if the FD descriptor |
| // limit has been reached. give it a chance to recover. |
| if(e instanceof Error && e.code === "EMFILE") { |
| var retry = loadLoader.bind(null, loader, callback); |
| if(typeof setImmediate === "function") { |
| // node >= 0.9.0 |
| return setImmediate(retry); |
| } else { |
| // node < 0.9.0 |
| return process.nextTick(retry); |
| } |
| } |
| return callback(e); |
| } |
| if(typeof module !== "function" && typeof module !== "object") { |
| return callback(new LoaderLoadingError( |
| "Module '" + loader.path + "' is not a loader (export function or es6 module)" |
| )); |
| } |
| loader.normal = typeof module === "function" ? module : module.default; |
| loader.pitch = module.pitch; |
| loader.raw = module.raw; |
| if(typeof loader.normal !== "function" && typeof loader.pitch !== "function") { |
| return callback(new LoaderLoadingError( |
| "Module '" + loader.path + "' is not a loader (must have normal or pitch function)" |
| )); |
| } |
| callback(); |
| } |
| }; |