Function visit

taier-ui/src/utils/index.ts:673–695

(
    obj: T,
    filter: (item: P) => boolean,
    handler: (item: P, vNode: { formName: string[] }) => void
)

 * ```
 */
export function visit<T extends { children: P[]; [key: string]: any }, P extends { type: string; [key: string]: any }>(
    obj: T,
    filter: (item: P) => boolean,
    handler: (item: P, vNode: { formName: string[] }) => void
) {
    const stack = [...obj.children.map((child) => ({ node: child, vNode: { formName: [child.name] } }))];
    while (stack.length) {
        const item = stack.pop()!;
        const isVisit = filter(item.node);
        if (isVisit) {
            handler(item.node, item.vNode);
        }

        if (item.node.type === 'object' && item.node.children.length) {
            stack.push(
                ...item.node.children.map((child: any) => ({
                    node: child,
                    vNode: { formName: [...item.vNode.formName, child.name] },
                }))
            );
        }
    }
}

/**
 * 过滤掉对象中的 `undefined` 和 `null` 的值