e0c7d783e0PR-URL: https://github.com/nodejs/node/pull/19701 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
35 lines
992 B
JavaScript
35 lines
992 B
JavaScript
'use strict';
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const BUFFER_REQUIRE = 'const { Buffer } = require(\'buffer\');';
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module.exports = function(context) {
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function flagIt(reference) {
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const msg = `Use ${BUFFER_REQUIRE} at the beginning of this file`;
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context.report({
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node: reference.identifier,
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message: msg,
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fix: (fixer) => {
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const sourceCode = context.getSourceCode();
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const useStrict = /'use strict';\n\n?/g;
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const hasUseStrict = !!useStrict.exec(sourceCode.text);
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const firstLOC = sourceCode.ast.range[0];
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const rangeNeedle = hasUseStrict ? useStrict.lastIndex : firstLOC;
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return fixer.insertTextBeforeRange([rangeNeedle],
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`${BUFFER_REQUIRE}\n`);
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}
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});
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}
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return {
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'Program:exit': function() {
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const globalScope = context.getScope();
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const variable = globalScope.set.get('Buffer');
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if (variable) {
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variable.references.forEach(flagIt);
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}
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}
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};
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};
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