Provide a kind of memory layout mapping in BufferDescriptor/BufferInitDescriptor about gpuweb HOT 2 CLOSED

Your mention of "trait" seems to imply that this is related to the wgpu-rs library and not the WebGPU Javascript specification that this repo is for. However the same sort of capability would be useful in Javascript and there has been multiple prototypes of what a helper library could look like. Tentatively closing both because it seems a wgpu-rs issue, but also because work around reflection is discussed in #624.

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Very interesting...
But I think a javascript developer doesn't want to deal with memory layout even with a helper tool.
It is the job of webgpu to take flatten bytes, matching wgsl struct and transform the buffer to the correct memory layout for gpu or in reverse transform the memory layout to contiguous bytes depending on wgsl struct or primitive back from gpu.
and as a rust developer, I don't want to care about memory layout except for few cases whose need to switch to a low level api of course.
I don't understand why webgpu can do it, but nothing will be implemented: this is probably a choice (a bad choice in my opinion)!

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