Method ReplaceSubplan

eval/compiler/flat_expr_builder_extensions.cc:422–438

}

absl::Status PlannerContext::ReplaceSubplan(const cel::Expr& node,
                                            ExecutionPath path) {
  auto* subexpression = program_builder_.GetSubexpression(&node);
  if (subexpression == nullptr) {
    return absl::InternalError(
        "attempted to update program step for untracked expr node");
  }

  // Make sure structure for descendents is erased.
  if (!subexpression->IsFlattened()) {
    subexpression->Flatten();
  }

  subexpression->flattened_elements() = std::move(path);

  return absl::OkStatus();
}

void ProgramBuilder::Reset() {
  root_ = nullptr;