Function walk

scripts/add-lang/dump-ast.mjs:83–94

(node, depth, fieldName)

};

function walk(node, depth, fieldName) {
  if (node.isNamed) freq.set(node.type, (freq.get(node.type) || 0) + 1);
  if ((node.isNamed || showAll) && depth <= maxDepth) {
    const field = fieldName ? `${fieldName}: ` : '';
    const leaf = node.childCount === 0 ? `  "${snippet(node)}"` : '';
    console.log(`${'  '.repeat(depth)}${field}${node.type}  @${node.startPosition.row + 1}:${node.startPosition.column}${leaf}`);
  }
  for (let i = 0; i < node.childCount; i++) {
    const child = node.child(i);
    if (child) walk(child, depth + 1, node.fieldNameForChild(i));
  }
}

console.log(`\n# AST for ${sampleFile}  (grammar: ${wasmPath.split('/').pop()})\n`);
walk(tree.rootNode, 0, null);