interface-param.slang
// interface-param.slang
// Test basic use of an interface as an existential type
// for a value parameter, instead of just as a constraint
// on a generic type parameter.
//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute
//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -dx12
//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute
//TEST(compute):COMPARE_COMPUTE_EX:-cpu -compute
interface IHelper
{
int getVal();
}
int doTheThing(IHelper helper)
{
return helper.getVal();
}
struct HelperImpl : IHelper
{
int storedVal;
int getVal() { return storedVal; }
}
int test(int val)
{
HelperImpl helperImpl = { val };
return doTheThing(helperImpl);
}
//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=gOutputBuffer
RWStructuredBuffer<int> gOutputBuffer;
[numthreads(4, 1, 1)]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
uint tid = dispatchThreadID.x;
int inputVal = tid;
int outputVal = test(inputVal);
gOutputBuffer[tid] = outputVal;
}