54 lines
5.2 KiB
JavaScript
54 lines
5.2 KiB
JavaScript
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'use strict';
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var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();
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var _resolve = require('eslint-module-utils/resolve');
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var _resolve2 = _interopRequireDefault(_resolve);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function checkImports(imported, context) {
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for (let _ref of imported.entries()) {
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var _ref2 = _slicedToArray(_ref, 2);
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let module = _ref2[0];
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let nodes = _ref2[1];
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if (nodes.size > 1) {
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for (let node of nodes) {
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context.report(node, `'${module}' imported multiple times.`);
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}
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}
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}
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}
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module.exports = {
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meta: {
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docs: {}
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},
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create: function (context) {
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const imported = new Map();
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const typesImported = new Map();
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return {
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'ImportDeclaration': function (n) {
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// resolved path will cover aliased duplicates
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const resolvedPath = (0, _resolve2.default)(n.source.value, context) || n.source.value;
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const importMap = n.importKind === 'type' ? typesImported : imported;
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if (importMap.has(resolvedPath)) {
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importMap.get(resolvedPath).add(n.source);
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} else {
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importMap.set(resolvedPath, new Set([n.source]));
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}
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},
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'Program:exit': function () {
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checkImports(imported, context);
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checkImports(typesImported, context);
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}
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};
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}
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};
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