unused: don't crash in whole-program mode if no packages were analyzed

dominikh · Apr 27, 2019 · 6f1f542 · 6f1f542
1 parent aa43d95
commit 6f1f542
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/unused/unused.go b/unused/unused.go
@@ -591,6 +591,10 @@ func (c *Checker) results() []types.Object {
 	var out []types.Object
 
 	if c.WholeProgram {
+		if c.graph == nil {
+			// We never analyzed any packages
+			return nil
+		}
 		var ifaces []*types.Interface
 		var notIfaces []types.Type