next
Version:
The React Framework
49 lines (48 loc) • 2.22 kB
JavaScript
/**
* Patches console methods to exit the workUnitAsyncStorage so that inside the host implementation
* sync IO can be called. This is relevant for example with runtimes that patch console methods to
* prepend a timestamp to the log output.
*
* Note that this will only exit for already installed patched console methods. If you further patch
* the console method after this and add any sync IO there it will trigger sync IO warnings while prerendering.
*
* This is a pragmatic concession because layering the patches if you install your own log implementation
* after they are installed is very tricky to do correctly because the order matters
*/ "use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
const _workunitasyncstorageexternal = require("../app-render/work-unit-async-storage.external");
function patchConsoleMethod(methodName) {
const descriptor = Object.getOwnPropertyDescriptor(console, methodName);
if (descriptor && (descriptor.configurable || descriptor.writable) && typeof descriptor.value === 'function') {
const originalMethod = descriptor.value;
const originalName = Object.getOwnPropertyDescriptor(originalMethod, 'name');
let wrapperMethod = function(...args) {
return _workunitasyncstorageexternal.workUnitAsyncStorage.exit(()=>originalMethod.apply(console, args));
};
if (originalName) {
Object.defineProperty(wrapperMethod, 'name', originalName);
}
Object.defineProperty(console, methodName, {
value: wrapperMethod
});
}
}
// We patch the same methods that React and our dev patch do.
// We may find other methods that could benefit from patching but if
// they exist we ought to consider patching them in all three places
patchConsoleMethod('error');
patchConsoleMethod('assert');
patchConsoleMethod('debug');
patchConsoleMethod('dir');
patchConsoleMethod('dirxml');
patchConsoleMethod('group');
patchConsoleMethod('groupCollapsed');
patchConsoleMethod('groupEnd');
patchConsoleMethod('info');
patchConsoleMethod('log');
patchConsoleMethod('table');
patchConsoleMethod('trace');
patchConsoleMethod('warn');
//# sourceMappingURL=console-exit.js.map