// addEdge adds the specified call graph edge, and marks it reachable.
// addrTaken indicates whether to mark the callee as "address-taken".
func (r *rta) addEdge(site ssa.CallInstruction, callee *ssa.Function, addrTaken bool) {
r.addReachable(callee, addrTaken)
if g := r.result.CallGraph; g != nil {
if site.Parent() == nil {
panic(site)
}
from := g.CreateNode(site.Parent())
to := g.CreateNode(callee)
callgraph.AddEdge(from, site, to)
}
}
