I'm trying to improve the way format_args!
gets lowered in the compiler, and I want to wrap the call to Arguments::new_const
in a const block expr to make sure it gets constant folded (relavant github issue), but hir::ConstBlock
doesn't have an obvious method of construction.
I have a hir::ExprKind
, and I somehow need to turn that into a BodyId
? some of the LoweringContext
methods are useful for constructing other types of expressions, but not so much for ConstBlock
.
Any idea how to do this?