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18d2e0c03e
* Rename lowPriorityWarning to lowPriorityWarningWithoutStack This maintains parity with the other warning-like functions. * Duplicate the toWarnDev tests to test toLowPriorityWarnDev * Make a lowPriorityWarning version of warning.js * Extract both variants in print-warning Avoids parsing lowPriorityWarning.js itself as the way it forwards the call to lowPriorityWarningWithoutStack is not analyzable.
53 lines
1.7 KiB
JavaScript
53 lines
1.7 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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/**
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* Forked from fbjs/warning:
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* https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
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*
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* Only change is we use console.warn instead of console.error,
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* and do nothing when 'console' is not supported.
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* This really simplifies the code.
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* ---
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* Similar to invariant but only logs a warning if the condition is not met.
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* This can be used to log issues in development environments in critical
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* paths. Removing the logging code for production environments will keep the
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* same logic and follow the same code paths.
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*/
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let lowPriorityWarningWithoutStack = function() {};
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if (__DEV__) {
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const printWarning = function(format, ...args) {
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let argIndex = 0;
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const message = 'Warning: ' + format.replace(/%s/g, () => args[argIndex++]);
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if (typeof console !== 'undefined') {
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console.warn(message);
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}
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try {
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// --- Welcome to debugging React ---
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// This error was thrown as a convenience so that you can use this stack
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// to find the callsite that caused this warning to fire.
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throw new Error(message);
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} catch (x) {}
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};
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lowPriorityWarningWithoutStack = function(condition, format, ...args) {
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if (format === undefined) {
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throw new Error(
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'`lowPriorityWarningWithoutStack(condition, format, ...args)` requires a warning ' +
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'message argument',
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);
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}
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if (!condition) {
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printWarning(format, ...args);
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}
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};
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}
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export default lowPriorityWarningWithoutStack;
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