yaml-unist-parser/lib/utils/define-parents.js

A YAML parser that produces output compatible with unist

export function defineParents(node, parent = null) {
    if ("children" in node) {
        node.children.forEach(child => defineParents(child, node));
    }
    if ("anchor" in node && node.anchor) {
        defineParents(node.anchor, node);
    }
    if ("tag" in node && node.tag) {
        defineParents(node.tag, node);
    }
    // istanbul ignore next
    if ("leadingComments" in node) {
        node.leadingComments.forEach(comment => defineParents(comment, node));
    }
    if ("middleComments" in node) {
        node.middleComments.forEach(comment => defineParents(comment, node));
    }
    if ("indicatorComment" in node && node.indicatorComment) {
        defineParents(node.indicatorComment, node);
    }
    if ("trailingComment" in node && node.trailingComment) {
        defineParents(node.trailingComment, node);
    }
    if ("endComments" in node) {
        node.endComments.forEach(comment => defineParents(comment, node));
    }
    Object.defineProperty(node, "_parent", {
        value: parent,
        enumerable: false,
    });
}