Function parseCommandRaw

src/utils/bash/parser.ts:104–136

(
  command: string,
)

 *   - PARSE_ABORTED: module loaded but parse failed (timeout/panic)
 */
export async function parseCommandRaw(
  command: string,
): Promise<Node | null | typeof PARSE_ABORTED> {
  if (!command || command.length > MAX_COMMAND_LENGTH) return null
  if (feature('TREE_SITTER_BASH') || feature('TREE_SITTER_BASH_SHADOW')) {
    await ensureParserInitialized()
    const mod = getParserModule()
    logLoadOnce(mod !== null)
    if (!mod) return null
    try {
      const result = mod.parse(command)
      // SECURITY: Module loaded; null here = timeout/node-budget abort in
      // bashParser.ts (PARSE_TIMEOUT_MS=50, MAX_NODES=50_000).
      // Previously collapsed into `return null` → parse-unavailable → legacy
      // path, which lacks EVAL_LIKE_BUILTINS — `trap`, `enable`, `hash` leaked.
      if (result === null) {
        logEvent('tengu_tree_sitter_parse_abort', {
          cmdLength: command.length,
          panic: false,
        })
        return PARSE_ABORTED
      }
      return result
    } catch {
      logEvent('tengu_tree_sitter_parse_abort', {
        cmdLength: command.length,
        panic: true,
      })
      return PARSE_ABORTED
    }
  }
  return null
}

function findCommandNode(node: Node, parent: Node | null): Node | null {
  const { type, children } = node