50 lines
1.2 KiB
JavaScript
50 lines
1.2 KiB
JavaScript
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'use strict';
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var Walker = require('node-source-walk');
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/**
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* Extracts the dependencies of the supplied es6 module
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*
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* @param {String|Object} src - File's content or AST
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* @param {Object} options - optional extra settings
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* @return {String[]}
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*/
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module.exports = function(src, options) {
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const walker = new Walker();
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const dependencies = [];
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if (typeof src === 'undefined') { throw new Error('src not given'); }
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if (src === '') {
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return dependencies;
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}
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walker.walk(src, function(node) {
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switch (node.type) {
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case 'ImportDeclaration':
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if (options && options.skipTypeImports && node.importKind == 'type') {
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break;
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}
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if (node.source && node.source.value) {
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dependencies.push(node.source.value);
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}
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break;
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case 'ExportNamedDeclaration':
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case 'ExportAllDeclaration':
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if (node.source && node.source.value) {
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dependencies.push(node.source.value);
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}
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break;
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case 'CallExpression':
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if (node.callee.type === 'Import' && node.arguments.length) {
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dependencies.push(node.arguments[0].value);
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}
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default:
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return;
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}
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});
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return dependencies;
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};
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