Wgsl struct constructor failed #4953
Description
Hello,
This code doesn't work:
https://google.github.io/tour-of-wgsl/types/structures/
It fails with error:
Shader validation error:
┌─ Fragment shader:7:19
│
7 │ const a_bicycle = Vehicle(2, 10.5);
│ ^^^^^^^^^^^^^^^^ naga::Expression [3]
Constant expression [3] is invalid
Composing 0's component type is not expected
Platform
MacOs, wgpu:0.18.0