34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
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"use strict";
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exports.__esModule = true;
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exports.visitor = undefined;
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var _babelTypes = require("babel-types");
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var t = _interopRequireWildcard(_babelTypes);
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
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var visitor = exports.visitor = {
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Function: function Function(path) {
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var params = path.get("params");
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var hoistTweak = t.isRestElement(params[params.length - 1]) ? 1 : 0;
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var outputParamsLength = params.length - hoistTweak;
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for (var i = 0; i < outputParamsLength; i++) {
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var param = params[i];
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if (param.isArrayPattern() || param.isObjectPattern()) {
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var uid = path.scope.generateUidIdentifier("ref");
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var declar = t.variableDeclaration("let", [t.variableDeclarator(param.node, uid)]);
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declar._blockHoist = outputParamsLength - i;
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path.ensureBlock();
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path.get("body").unshiftContainer("body", declar);
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param.replaceWith(uid);
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}
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}
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}
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};
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