| "use strict"; |
| |
| Object.defineProperty(exports, "__esModule", { |
| value: true |
| }); |
| exports["default"] = mayContainChildComponent; |
| |
| var _jsxAstUtils = require("jsx-ast-utils"); |
| |
| /** |
| * Returns true if it can positively determine that the element lacks an |
| * accessible label. If no determination is possible, it returns false. Treat |
| * false as an unknown value. The element might still have an accessible label, |
| * but this module cannot determine it positively. |
| * |
| * |
| */ |
| function mayContainChildComponent(root, componentName) { |
| var maxDepth = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1; |
| |
| function traverseChildren(node, depth) { |
| // Bail when maxDepth is exceeded. |
| if (depth > maxDepth) { |
| return false; |
| } |
| |
| if (node.children) { |
| /* $FlowFixMe */ |
| for (var i = 0; i < node.children.length; i += 1) { |
| /* $FlowFixMe */ |
| var childNode = node.children[i]; // Assume an expression container renders a label. It is the best we can |
| // do in this case. |
| |
| if (childNode.type === 'JSXExpressionContainer') { |
| return true; |
| } // Check for comonents with the provided name. |
| |
| |
| if (childNode.type === 'JSXElement' && childNode.openingElement && (0, _jsxAstUtils.elementType)(childNode.openingElement) === componentName) { |
| return true; |
| } |
| |
| if (traverseChildren(childNode, depth + 1)) { |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| return traverseChildren(root, 1); |
| } |