mutating-and-inout.slang
// mutating-and-inout.slang
// Test that calling a `[mutating]` method on an `inout` function parameter works.
//TEST(compute):COMPARE_COMPUTE: -shaderobj
//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<int> outputBuffer;
struct A
{
int x;
[mutating] void doThings(inout int y)
{
int tmp = x;
x = y;
y = tmp;
}
}
int doThings(inout A a, int val)
{
a.doThings(val);
return val;
}
int test(int val)
{
A a = { val };
int b = val ^ 3;
int c = doThings(a, b);
int result = 0;
result = result*16 + a.x;
result = result*16 + b;
result = result*16 + c;
return result;
}
[numthreads(4, 1, 1)]
void computeMain(int3 tid : SV_DispatchThreadID)
{
int val = tid.x;
val = test(val);
outputBuffer[tid.x] = val;
}