@typed/test/lib.es2015/typescript/findNode.js

Testing made simple.

import { forEachChild } from 'typescript';
export function findNode(predicate, sourceNodes) {
    return new Promise((resolve, reject) => {
        for (const node of sourceNodes) {
            visitChildren(node);
        }
        function visitChildren(node) {
            if (predicate(node)) {
                return resolve(node);
            }
            forEachChild(node, visitChildren);
        }
        reject(new Error('Unable to find Node'));
    });
}
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