d2-ui
Version:
79 lines (61 loc) • 5.06 kB
JavaScript
require('es6-symbol/implement');
var _es6Map = require('es6-map');
var _es6Map2 = _interopRequireDefault(_es6Map);
var _es6Set = require('es6-set');
var _es6Set2 = _interopRequireDefault(_es6Set);
var _resolve = require('../core/resolve');
var _resolve2 = _interopRequireDefault(_resolve);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function checkImports(imported, context) {
for (var _iterator = imported.entries(), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
var _ref;
if (_isArray) {
if (_i >= _iterator.length) break;
_ref = _iterator[_i++];
} else {
_i = _iterator.next();
if (_i.done) break;
_ref = _i.value;
}
var _ref2 = _ref;
var _module = _ref2[0];
var nodes = _ref2[1];
if (nodes.size > 1) {
for (var _iterator2 = nodes, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
var _ref3;
if (_isArray2) {
if (_i2 >= _iterator2.length) break;
_ref3 = _iterator2[_i2++];
} else {
_i2 = _iterator2.next();
if (_i2.done) break;
_ref3 = _i2.value;
}
var node = _ref3;
context.report(node, '\'' + _module + '\' imported multiple times.');
}
}
}
}
module.exports = function (context) {
var imported = new _es6Map2.default();
var typesImported = new _es6Map2.default();
return {
'ImportDeclaration': function ImportDeclaration(n) {
// resolved path will cover aliased duplicates
var resolvedPath = (0, _resolve2.default)(n.source.value, context) || n.source.value;
var importMap = n.importKind === 'type' ? typesImported : imported;
if (importMap.has(resolvedPath)) {
importMap.get(resolvedPath).add(n.source);
} else {
importMap.set(resolvedPath, new _es6Set2.default([n.source]));
}
},
'Program:exit': function ProgramExit() {
checkImports(imported, context);
checkImports(typesImported, context);
}
};
};
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;