twing/dist/cjs/lib/node-traverser.js

First-class Twig engine for Node.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createNodeTraverser = void 0;
const node_1 = require("./node");
const createNodeTraverser = (visitors) => {
    const traverseWithVisitor = (visitor, node, source) => {
        node = visitor.enterNode(node, source);
        for (const [key, child] of (0, node_1.getChildren)(node)) {
            const newChild = traverseWithVisitor(visitor, child, source);
            if (newChild) {
                if (newChild !== child) {
                    node.children[key] = newChild;
                }
            }
            else {
                delete node.children[key];
            }
        }
        return visitor.leaveNode(node, source);
    };
    return (node, template) => {
        let result = node;
        for (const visitor of visitors) {
            result = traverseWithVisitor(visitor, node, template);
        }
        return result;
    };
};
exports.createNodeTraverser = createNodeTraverser;