42 lines
1.5 KiB
JavaScript
42 lines
1.5 KiB
JavaScript
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// @flow
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// This file was forked from the React GitHub repo:
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// https://raw.githubusercontent.com/facebook/react/master/packages/shared/describeComponentFrame.js
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//
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// It has been modified sligthly to add a zero width space as commented below.
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const BEFORE_SLASH_RE = /^(.*)[\\/]/;
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export default function describeComponentFrame(
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name: null | string,
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source: any,
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ownerName: null | string
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) {
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let sourceInfo = '';
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if (source) {
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let path = source.fileName;
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let fileName = path.replace(BEFORE_SLASH_RE, '');
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if (__DEV__) {
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// In DEV, include code for a common special case:
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// prefer "folder/index.js" instead of just "index.js".
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if (/^index\./.test(fileName)) {
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const match = path.match(BEFORE_SLASH_RE);
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if (match) {
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const pathBeforeSlash = match[1];
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if (pathBeforeSlash) {
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const folderName = pathBeforeSlash.replace(BEFORE_SLASH_RE, '');
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// Note the below string contains a zero width space after the "/" character.
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// This is to prevent browsers like Chrome from formatting the file name as a link.
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// (Since this is a source link, it would not work to open the source file anyway.)
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fileName = folderName + '/' + fileName;
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}
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}
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}
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}
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sourceInfo = ' (at ' + fileName + ':' + source.lineNumber + ')';
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} else if (ownerName) {
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sourceInfo = ' (created by ' + ownerName + ')';
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}
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return '\n in ' + (name || 'Unknown') + sourceInfo;
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}
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