add size check in get_argument_vector

2026-05-19 02:35:23 +00:00 · 2021-01-16 15:38:14 +01:00
parent 3cc82e934e
commit 316567898e
1 changed files with 4 additions and 0 deletions
@@ -119,6 +119,10 @@ class Renderer : public NodeVisitor  {

  template<bool throw_not_found=true>
  Arguments get_argument_vector(size_t N, const AstNode& node) {
+    if (json_eval_stack.size() < N) {
+      throw_renderer_error("function needs " + std::to_string(N) + " variables, but has only found " + std::to_string(json_eval_stack.size()), node);
+    }
+
    Arguments result {N};
    for (size_t i = 0; i < N; i += 1) {
      result[N - i - 1] = json_eval_stack.top();