| "use strict"; |
| |
| Object.defineProperty(exports, "__esModule", { |
| value: true |
| }); |
| exports.default = readInitialCoverage; |
| |
| var _parser = require("@babel/parser"); |
| |
| var _traverse = _interopRequireDefault(require("@babel/traverse")); |
| |
| var t = _interopRequireWildcard(require("@babel/types")); |
| |
| var _constants = require("./constants"); |
| |
| var _instrumenter = require("./instrumenter"); |
| |
| 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)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { 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 |
| |
| |
| const ast = (0, _parser.parse)(code, { |
| allowImportExportEverywhere: true, |
| allowReturnOutsideFunction: true, |
| allowSuperOutsideMethod: true, |
| sourceType: 'script', |
| plugins: (0, _instrumenter.defaultOpts)().plugins |
| }); |
| let covScope; |
| (0, _traverse.default)(ast, { |
| ObjectProperty(path) { |
| const node = path.node; |
| |
| if (!node.computed && t.isIdentifier(node.key) && node.key.name === _constants.MAGIC_KEY) { |
| const 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; |
| } |
| |
| const result = {}; |
| |
| for (var _i = 0, _arr = ['path', 'hash', 'gcv', 'coverageData']; _i < _arr.length; _i++) { |
| const key = _arr[_i]; |
| const binding = covScope.getOwnBinding(key); |
| |
| if (!binding) { |
| return null; |
| } |
| |
| const valuePath = binding.path.get('init'); |
| const value = valuePath.evaluate(); |
| |
| if (!value.confident) { |
| return null; |
| } |
| |
| result[key] = value.value; |
| } |
| |
| delete result.coverageData[_constants.MAGIC_KEY]; |
| return result; |
| } |