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