odin-javascript-exercises/node_modules/eslint-plugin-import/lib/rules/no-duplicates.js
2017-12-15 12:56:14 -06:00

54 lines
No EOL
5.2 KiB
JavaScript

'use strict';
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"); } }; }();
var _resolve = require('eslint-module-utils/resolve');
var _resolve2 = _interopRequireDefault(_resolve);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function checkImports(imported, context) {
for (let _ref of imported.entries()) {
var _ref2 = _slicedToArray(_ref, 2);
let module = _ref2[0];
let nodes = _ref2[1];
if (nodes.size > 1) {
for (let node of nodes) {
context.report(node, `'${module}' imported multiple times.`);
}
}
}
}
module.exports = {
meta: {
docs: {}
},
create: function (context) {
const imported = new Map();
const typesImported = new Map();
return {
'ImportDeclaration': function (n) {
// resolved path will cover aliased duplicates
const resolvedPath = (0, _resolve2.default)(n.source.value, context) || n.source.value;
const importMap = n.importKind === 'type' ? typesImported : imported;
if (importMap.has(resolvedPath)) {
importMap.get(resolvedPath).add(n.source);
} else {
importMap.set(resolvedPath, new Set([n.source]));
}
},
'Program:exit': function () {
checkImports(imported, context);
checkImports(typesImported, context);
}
};
}
};
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