| "use strict"; |
| |
| Object.defineProperty(exports, "__esModule", { |
| value: true |
| }); |
| exports["default"] = getTabIndex; |
| |
| var _jsxAstUtils = require("jsx-ast-utils"); |
| |
| /** |
| * Returns the tabIndex value. |
| */ |
| function getTabIndex(tabIndex) { |
| var literalValue = (0, _jsxAstUtils.getLiteralPropValue)(tabIndex); // String and number values. |
| |
| if (['string', 'number'].indexOf(typeof literalValue) > -1) { |
| // Empty string will convert to zero, so check for it explicity. |
| if (typeof literalValue === 'string' && literalValue.length === 0) { |
| return undefined; |
| } |
| |
| var value = Number(literalValue); |
| |
| if (Number.isNaN(value)) { |
| return undefined; |
| } |
| |
| return Number.isInteger(value) ? value : undefined; |
| } // Booleans are not valid values, return undefined. |
| |
| |
| if (literalValue === true || literalValue === false) { |
| return undefined; |
| } |
| |
| return (0, _jsxAstUtils.getPropValue)(tabIndex); |
| } |