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node_modules/babel-plugin-transform-es2015-block-scoped-functions/lib/index.js 1.5 KB
6a9ffbcc   liuqimichale   地图点击事件
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  "use strict";
  
  exports.__esModule = true;
  
  var _getIterator2 = require("babel-runtime/core-js/get-iterator");
  
  var _getIterator3 = _interopRequireDefault(_getIterator2);
  
  exports.default = function (_ref) {
    var t = _ref.types;
  
    function statementList(key, path) {
      var paths = path.get(key);
  
      for (var _iterator = paths, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
        var _ref2;
  
        if (_isArray) {
          if (_i >= _iterator.length) break;
          _ref2 = _iterator[_i++];
        } else {
          _i = _iterator.next();
          if (_i.done) break;
          _ref2 = _i.value;
        }
  
        var _path = _ref2;
  
        var func = _path.node;
        if (!_path.isFunctionDeclaration()) continue;
  
        var declar = t.variableDeclaration("let", [t.variableDeclarator(func.id, t.toExpression(func))]);
  
        declar._blockHoist = 2;
  
        func.id = null;
  
        _path.replaceWith(declar);
      }
    }
  
    return {
      visitor: {
        BlockStatement: function BlockStatement(path) {
          var node = path.node,
              parent = path.parent;
  
          if (t.isFunction(parent, { body: node }) || t.isExportDeclaration(parent)) {
            return;
          }
  
          statementList("body", path);
        },
        SwitchCase: function SwitchCase(path) {
          statementList("consequent", path);
        }
      }
    };
  };
  
  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  module.exports = exports["default"];