Using slots in TGSL

[iwoplaza]

Lets take the following code as an example:

const inputGridSlot = tgpu.slot<TgpuBufferReadonly<TgpuArray<F32>>>();

const getCell = tgpu.fn([i32, i32], f32).does((x, y) => {
  const idx = x + y * gridSize;
  const gridUsage = inputGridSlot.value; // => TgpuBufferReadonly<TgpuArray<F32>>
  const grid = gridUsage.value; // => number[];
  return grid[idx]; // => number
});

To get the actual resource, we need to perform two .value accesses.

I see two paths we could take:

• Leave it, its fine
• Make .value act as .value.value when done on slots
• (something else)

[reczkok]

I think having .value act as .value.value would be the most convenient. We could also introduce a field like .current in case someone wants to use the current slot occupant in some logic outside of shader functions.