def at

bolt@1.27.0.0 · src/syntax/bind.bend:950

import Base

950# the site at a position
951def at(bb: Bound, +line: U32, +col: U32) -> Maybe<&2, Site>:
952  Bound{binds, uses, scopes} = bb
953  at.or(bind_at(binds, line, col), uses, line, col)