tree d3c92fe3f786d7c709612089632abf33d653b109
parent 68988976862d693f6ce3b399c3132279d8ee4190
author Marcel van Lohuizen <mpvl@golang.org> 1611134421 +0100
committer Marcel van Lohuizen <mpvl@golang.org> 1611156888 +0000

internal/core/eval: strip arcs for nodes with structural cycles

This prevents a Finalized Vertex from not having
and descendent arcs that are not Finalized.

This, in turn, prevents accidental triggering of
evaluation in an API that may disect the Vertex.

Change-Id: I4f4727393d9fdf2b55558512f2f850124ec48d5c
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/8241
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>