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/* SPDX-License-Identifier: Apache-2.0 */
#include "testing/testing.h"
#include "FN_lazy_function_execute.hh"
#include "FN_lazy_function_graph.hh"
#include "FN_lazy_function_graph_executor.hh"
#include "BLI_task.h"
#include "BLI_timeit.hh"
namespace blender::fn::lazy_function::tests {
class AddLazyFunction : public LazyFunction {
public:
AddLazyFunction()
{
debug_name_ = "Add";
inputs_.append({"A", CPPType::get<int>()});
inputs_.append({"B", CPPType::get<int>()});
outputs_.append({"Result", CPPType::get<int>()});
}
void execute_impl(Params ¶ms, const Context &UNUSED(context)) const override
{
const int a = params.get_input<int>(0);
const int b = params.get_input<int>(1);
params.set_output(0, a + b);
}
};
class StoreValueFunction : public LazyFunction {
private:
int *dst1_;
int *dst2_;
public:
StoreValueFunction(int *dst1, int *dst2) : dst1_(dst1), dst2_(dst2)
{
debug_name_ = "Store Value";
inputs_.append({"A", CPPType::get<int>()});
inputs_.append({"B", CPPType::get<int>(), ValueUsage::Maybe});
}
void execute_impl(Params ¶ms, const Context &UNUSED(context)) const override
{
*dst1_ = params.get_input<int>(0);
if (int *value = params.try_get_input_data_ptr_or_request<int>(1)) {
*dst2_ = *value;
}
}
};
class SimpleSideEffectProvider : public GraphExecutor::SideEffectProvider {
private:
Vector<const FunctionNode *> side_effect_nodes_;
public:
SimpleSideEffectProvider(Span<const FunctionNode *> side_effect_nodes)
: side_effect_nodes_(side_effect_nodes)
{
}
Vector<const FunctionNode *> get_nodes_with_side_effects(
const Context &UNUSED(context)) const override
{
return side_effect_nodes_;
}
};
TEST(lazy_function, SimpleAdd)
{
const AddLazyFunction add_fn;
int result = 0;
execute_lazy_function_eagerly(add_fn, nullptr, std::make_tuple(30, 5), std::make_tuple(&result));
EXPECT_EQ(result, 35);
}
TEST(lazy_function, SideEffects)
{
BLI_task_scheduler_init();
int dst1 = 0;
int dst2 = 0;
const AddLazyFunction add_fn;
const StoreValueFunction store_fn{&dst1, &dst2};
Graph graph;
FunctionNode &add_node_1 = graph.add_function(add_fn);
FunctionNode &add_node_2 = graph.add_function(add_fn);
FunctionNode &store_node = graph.add_function(store_fn);
DummyNode &input_node = graph.add_dummy({}, {&CPPType::get<int>()});
graph.add_link(input_node.output(0), add_node_1.input(0));
graph.add_link(input_node.output(0), add_node_2.input(0));
graph.add_link(add_node_1.output(0), store_node.input(0));
graph.add_link(add_node_2.output(0), store_node.input(1));
const int value_10 = 10;
const int value_100 = 100;
add_node_1.input(1).set_default_value(&value_10);
add_node_2.input(1).set_default_value(&value_100);
graph.update_node_indices();
SimpleSideEffectProvider side_effect_provider{{&store_node}};
GraphExecutor executor_fn{graph, {&input_node.output(0)}, {}, nullptr, &side_effect_provider};
execute_lazy_function_eagerly(executor_fn, nullptr, std::make_tuple(5), std::make_tuple());
EXPECT_EQ(dst1, 15);
EXPECT_EQ(dst2, 105);
}
} // namespace blender::fn::lazy_function::tests
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