babel-plugin-mini/lib/examples/import.js

转换小程序

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

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 toLowerCase = function toLowerCase(word) {
  return Array.from(word).map(function (char, index) {
    return !index ? char.toLowerCase() : char;
  }).join('');
};

exports.default = function (_ref) {
  var types = _ref.types;

  return {
    visitor: {
      ImportDeclaration: function ImportDeclaration(path) {
        var node = path.node;
        var type = node.type,
            specifiers = node.specifiers,
            source = node.source;

        console.log(type);

        var importSpecifiers = specifiers.filter(function (specifier) {
          return types.isImportSpecifier(specifier);
        });

        if (importSpecifiers.length === 1) {
          var _importSpecifiers = _slicedToArray(importSpecifiers, 1),
              importSpecifier = _importSpecifiers[0];

          var element = toLowerCase(importSpecifier.imported.name);

          importSpecifier.type = 'ImportDefaultSpecifier';
          source.value += '/lib/' + element;
        }
      }
    }
  };
};