Method findPiniaSetupFn

src/extraction/tree-sitter.ts:2499–2511

The SETUP function of a Pinia setup store (`defineStore('id', () => {…})`) * — an arrow/function arg with a block body. Returns null for the options form * (`defineStore({…})`) and for any non-defineStore call. The setup body's local * function consts are the store's actions; the generic

(callNode: SyntaxNode)

   *  function consts are the store's actions; the generic body walk doesn't reach
   *  them (nested functions are separate scopes), so they're extracted explicitly. */
  private findPiniaSetupFn(callNode: SyntaxNode): SyntaxNode | null {
    const callee = getChildByField(callNode, 'function');
    if (!callee || callee.type !== 'identifier' || getNodeText(callee, this.source) !== 'defineStore') return null;
    const args = getChildByField(callNode, 'arguments');
    if (!args) return null;
    for (let i = 0; i < args.namedChildCount; i++) {
      const arg = args.namedChild(i);
      if (arg?.type !== 'arrow_function' && arg?.type !== 'function_expression') continue;
      const body = getChildByField(arg, 'body');
      if (body?.type === 'statement_block') return arg; // block body ⇒ setup form
    }
    return null;
  }

  /** Extract a Pinia setup store's actions: the body-local `const foo = () => …`
   *  / `function foo(){}` declarations, named by the binding. (State refs and other