diff options
Diffstat (limited to 'node_modules/istanbul-lib-instrument/dist/read-coverage.js')
-rw-r--r-- | node_modules/istanbul-lib-instrument/dist/read-coverage.js | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/node_modules/istanbul-lib-instrument/dist/read-coverage.js b/node_modules/istanbul-lib-instrument/dist/read-coverage.js new file mode 100644 index 000000000..73e74291a --- /dev/null +++ b/node_modules/istanbul-lib-instrument/dist/read-coverage.js @@ -0,0 +1,78 @@ +'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.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; +}
\ No newline at end of file |