fn try_wrap_bool_arith_operand(e: &Expr, ctx: &mut WalkCtx<'_>)Expand description
Emit a select(0.0, 1.0, (<expr>)) zero-length-insertion wrap around
e if its top-level operator is a boolean producer. Mirrors
try_wrap_bool_rhs but is called from arithmetic context, and also
emits the vector-shape form
select(vec3<f32>(0.0), vec3<f32>(1.0), (vec_cmp)) when the bool’s
operands are vector-typed, since WGSL select(scalar, scalar, vecN<bool>) is invalid.