yum-mirror/slang

Making it easier to work with shaders

git clone https://git.yummers.dev/yum-mirror/slang

Yong HeFix l-value computation for subscript call. (#5177)afb1405bf

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1//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-vk -output-using-type
2//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-d3d11 -output-using-type
3
4struct Test {
5    RWStructuredBuffer<int> val;
6    __subscript(int x, int y)->int
7    {
8        get { return val[x * 3 + y]; }
9        [nonmutating] set { val[x * 3 + y] = newValue; }
10    }
11}
12Test test;
13
14//TEST_INPUT: set test = {out ubuffer(data=[0 0 0 0 0 0 0 0 0], stride=4)};
15
16[numthreads(1, 1, 1)]
17void computeMain()
18{
19    // test[0,0] should be a valid l-value here because although `test` is
20    // a read-only parameter, the `set` accessor is marked as `nonmutating`,
21    // which means that it can be called even when `test` is not mutable.
22
23    // CHECK: 1
24    test[0,0] = 1;
25}