The following shader fails to compile: @id(1001) override c1: u32; // some big numeric id @id(1) override c2: u32 = 0u; // id == 1 might collide with some generated constant id @id(1003) override c3: u32 = 3u; // default struct Buf { data : array<u32, 3> } @group(0) @binding(0) var<storage, read_write> buf : Buf; @compute @workgroup_size(1) fn main() { buf.data[0] = c1; buf.data[1] = c2; buf.data[2] = c3; 2:8: Unknown attribute. Supported attributes are 'group', 'binding', 'location', 'builtin', 'vertex', 'compute', 'fragment'.