1 files changed, 65 insertions, 0 deletions
diff --git a/source/blender/functions/intern/lazy_function_execute.cc b/source/blender/functions/intern/lazy_function_execute.cc
new file mode 100644
index 00000000000..279056afa99
--- /dev/null
+++ b/source/blender/functions/intern/lazy_function_execute.cc
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup fn
+ */
+
+#include "FN_lazy_function_execute.hh"
+
+namespace blender::fn::lazy_function {
+
+BasicParams::BasicParams(const LazyFunction &fn,
+                         const Span<GMutablePointer> inputs,
+                         const Span<GMutablePointer> outputs,
+                         MutableSpan<std::optional<ValueUsage>> input_usages,
+                         Span<ValueUsage> output_usages,
+                         MutableSpan<bool> set_outputs)
+    : Params(fn),
+      inputs_(inputs),
+      outputs_(outputs),
+      input_usages_(input_usages),
+      output_usages_(output_usages),
+      set_outputs_(set_outputs)
+{
+}
+
+void *BasicParams::try_get_input_data_ptr_impl(const int index) const
+{
+  return inputs_[index].get();
+}
+
+void *BasicParams::try_get_input_data_ptr_or_request_impl(const int index)
+{
+  void *value = inputs_[index].get();
+  if (value == nullptr) {
+    input_usages_[index] = ValueUsage::Used;
+  }
+  return value;
+}
+
+void *BasicParams::get_output_data_ptr_impl(const int index)
+{
+  return outputs_[index].get();
+}
+
+void BasicParams::output_set_impl(const int index)
+{
+  set_outputs_[index] = true;
+}
+
+bool BasicParams::output_was_set_impl(const int index) const
+{
+  return set_outputs_[index];
+}
+
+ValueUsage BasicParams::get_output_usage_impl(const int index) const
+{
+  return output_usages_[index];
+}
+
+void BasicParams::set_input_unused_impl(const int index)
+{
+  input_usages_[index] = ValueUsage::Unused;
+}
+
+}  // namespace blender::fn::lazy_function