mirror of
https://github.com/facebook/react.git
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9ac42dd074
* prep for codemod * prep warnings * rename lint rules * codemod for ifs * shim www functions * Handle more cases in the transform * Thanks De Morgan * Run the codemod * Delete the transform * Fix up confusing conditions manually * Fix up www shims to match expected API * Also check for low-pri warning in the lint rule
51 lines
1.6 KiB
JavaScript
51 lines
1.6 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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* 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 warningWithoutStack = () => {};
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if (__DEV__) {
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warningWithoutStack = function(format, ...args) {
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if (format === undefined) {
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throw new Error(
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'`warningWithoutStack(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 (args.length > 8) {
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// Check before the condition to catch violations early.
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throw new Error(
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'warningWithoutStack() currently supports at most 8 arguments.',
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);
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}
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if (typeof console !== 'undefined') {
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const argsWithFormat = args.map(item => '' + item);
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argsWithFormat.unshift('Warning: ' + format);
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// We intentionally don't use spread (or .apply) directly because it
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// breaks IE9: https://github.com/facebook/react/issues/13610
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Function.prototype.apply.call(console.error, console, argsWithFormat);
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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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let argIndex = 0;
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const message =
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'Warning: ' + format.replace(/%s/g, () => args[argIndex++]);
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throw new Error(message);
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} catch (x) {}
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};
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}
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export default warningWithoutStack;
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