Function naga::proc::flatten_compose
source · pub fn flatten_compose<'arenas>(
ty: Handle<Type>,
components: &'arenas [Handle<Expression>],
expressions: &'arenas Arena<Expression>,
types: &'arenas UniqueArena<Type>
) -> impl Iterator<Item = Handle<Expression>> + 'arenas
Expand description
Return an iterator over the individual components assembled by a
Compose
expression.
Given ty
and components
from an Expression::Compose
, return an
iterator over the components of the resulting value.
Normally, this would just be an iterator over components
. However,
Compose
expressions can concatenate vectors, in which case the i’th
value being composed is not generally the i’th element of components
.
This function consults ty
to decide if this concatenation is occurring,
and returns an iterator that produces the components of the result of
the Compose
expression in either case.