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node_modules/babel-helper-builder-binary-assignment-operator-visitor/lib/index.js 2.03 KB
6a9ffbcc   liuqimichale   地图点击事件
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  "use strict";
  
  exports.__esModule = true;
  
  exports.default = function (opts) {
    var visitor = {};
  
    function isAssignment(node) {
      return node && node.operator === opts.operator + "=";
    }
  
    function buildAssignment(left, right) {
      return t.assignmentExpression("=", left, right);
    }
  
    visitor.ExpressionStatement = function (path, file) {
      if (path.isCompletionRecord()) return;
  
      var expr = path.node.expression;
      if (!isAssignment(expr)) return;
  
      var nodes = [];
      var exploded = (0, _babelHelperExplodeAssignableExpression2.default)(expr.left, nodes, file, path.scope, true);
  
      nodes.push(t.expressionStatement(buildAssignment(exploded.ref, opts.build(exploded.uid, expr.right))));
  
      path.replaceWithMultiple(nodes);
    };
  
    visitor.AssignmentExpression = function (path, file) {
      var node = path.node,
          scope = path.scope;
  
      if (!isAssignment(node)) return;
  
      var nodes = [];
      var exploded = (0, _babelHelperExplodeAssignableExpression2.default)(node.left, nodes, file, scope);
      nodes.push(buildAssignment(exploded.ref, opts.build(exploded.uid, node.right)));
      path.replaceWithMultiple(nodes);
    };
  
    visitor.BinaryExpression = function (path) {
      var node = path.node;
  
      if (node.operator === opts.operator) {
        path.replaceWith(opts.build(node.left, node.right));
      }
    };
  
    return visitor;
  };
  
  var _babelHelperExplodeAssignableExpression = require("babel-helper-explode-assignable-expression");
  
  var _babelHelperExplodeAssignableExpression2 = _interopRequireDefault(_babelHelperExplodeAssignableExpression);
  
  var _babelTypes = require("babel-types");
  
  var t = _interopRequireWildcard(_babelTypes);
  
  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; } }
  
  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  module.exports = exports["default"];