| 'use strict'; |
| |
| Object.defineProperty(exports, "__esModule", { |
| value: true |
| }); |
| exports.default = readInitialCoverage; |
| |
| var _constants = require('./constants'); |
| |
| var _babylon = require('babylon'); |
| |
| var _babelTraverse = require('babel-traverse'); |
| |
| var _babelTraverse2 = _interopRequireDefault(_babelTraverse); |
| |
| 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 }; } |
| |
| function readInitialCoverage(code) { |
| if (typeof code !== 'string') { |
| throw new Error('Code must be a string'); |
| } |
| |
| // Parse as leniently as possible |
| var ast = (0, _babylon.parse)(code, { |
| allowImportExportEverywhere: true, |
| allowReturnOutsideFunction: true, |
| allowSuperOutsideMethod: true, |
| sourceType: "script", // I think ? |
| plugins: ["*"] |
| }); |
| |
| var covScope = void 0; |
| (0, _babelTraverse2.default)(ast, { |
| ObjectProperty: function ObjectProperty(path) { |
| var node = path.node; |
| |
| if (!node.computed && t.isIdentifier(node.key) && node.key.name === _constants.MAGIC_KEY) { |
| var magicValue = path.get('value').evaluate(); |
| if (!magicValue.confident || magicValue.value !== _constants.MAGIC_VALUE) { |
| return; |
| } |
| covScope = path.scope.getFunctionParent() || path.scope.getProgramParent(); |
| path.stop(); |
| } |
| } |
| }); |
| |
| if (!covScope) { |
| return null; |
| } |
| |
| var result = {}; |
| |
| var _arr = ['path', 'hash', 'gcv', 'coverageData']; |
| for (var _i = 0; _i < _arr.length; _i++) { |
| var key = _arr[_i]; |
| var binding = covScope.getOwnBinding(key); |
| if (!binding) { |
| return null; |
| } |
| var valuePath = binding.path.get('init'); |
| var value = valuePath.evaluate(); |
| if (!value.confident) { |
| return null; |
| } |
| result[key] = value.value; |
| } |
| |
| delete result.coverageData[_constants.MAGIC_KEY]; |
| |
| return result; |
| } |