mirror of
https://github.com/facebook/react.git
synced 2025-11-01 09:12:30 +00:00
Dan Abramov
f9358c51c8
* Use %s in the console calls * Add shared/warningWithStack * Convert some warning callsites to warningWithStack * Use warningInStack in shared utilities and remove unnecessary checks * Replace more warning() calls with warningWithStack() * Fixes after rebase + use warningWithStack in react * Make warning have stack by default; warningWithoutStack opts out * Forbid builds that may not use internals * Revert newly added stacks I changed my mind and want to keep this PR without functional changes. So we won't "fix" any warnings that are already missing stacks. We'll do it in follow-ups instead. * Fix silly find/replace mistake * Reorder imports * Add protection against warning argument count mismatches * Address review
53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
/**
|
|
* Copyright (c) 2014-present, Facebook, Inc.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
|
|
/**
|
|
* Forked from fbjs/warning:
|
|
* https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
|
|
*
|
|
* Only change is we use console.warn instead of console.error,
|
|
* and do nothing when 'console' is not supported.
|
|
* This really simplifies the code.
|
|
* ---
|
|
* Similar to invariant but only logs a warning if the condition is not met.
|
|
* This can be used to log issues in development environments in critical
|
|
* paths. Removing the logging code for production environments will keep the
|
|
* same logic and follow the same code paths.
|
|
*/
|
|
|
|
let lowPriorityWarning = function() {};
|
|
|
|
if (__DEV__) {
|
|
const printWarning = function(format, ...args) {
|
|
let argIndex = 0;
|
|
const message = 'Warning: ' + format.replace(/%s/g, () => args[argIndex++]);
|
|
if (typeof console !== 'undefined') {
|
|
console.warn(message);
|
|
}
|
|
try {
|
|
// --- Welcome to debugging React ---
|
|
// This error was thrown as a convenience so that you can use this stack
|
|
// to find the callsite that caused this warning to fire.
|
|
throw new Error(message);
|
|
} catch (x) {}
|
|
};
|
|
|
|
lowPriorityWarning = function(condition, format, ...args) {
|
|
if (format === undefined) {
|
|
throw new Error(
|
|
'`warningWithoutStack(condition, format, ...args)` requires a warning ' +
|
|
'message argument',
|
|
);
|
|
}
|
|
if (!condition) {
|
|
printWarning(format, ...args);
|
|
}
|
|
};
|
|
}
|
|
|
|
export default lowPriorityWarning;
|