Current File : //var/www/html/node_modules/eslint-module-utils/unambiguous.js
'use strict';
exports.__esModule = true;
const pattern = /(^|;)\s*(export|import)((\s+\w)|(\s*[{*=]))|import\(/m;
/**
* detect possible imports/exports without a full parse.
*
* A negative test means that a file is definitely _not_ a module.
* A positive test means it _could_ be.
*
* Not perfect, just a fast way to disqualify large non-ES6 modules and
* avoid a parse.
* @type {RegExp}
*/
exports.test = function isMaybeUnambiguousModule(content) {
return pattern.test(content);
};
// future-/Babel-proof at the expense of being a little loose
const unambiguousNodeType = /^(?:(?:Exp|Imp)ort.*Declaration|TSExportAssignment)$/;
/**
* Given an AST, return true if the AST unambiguously represents a module.
* @param {Program node} ast
* @return {Boolean}
*/
exports.isModule = function isUnambiguousModule(ast) {
return ast.body && ast.body.some(node => unambiguousNodeType.test(node.type));
};
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