Fix null erasable throw

lib/index.js

@@ -18,7 +18,7 @@ const p = (fn) => (...args) => {
  * @typedef {import('pzp-db').RecPresent} RecPresent
  * @typedef {import('pzp-db').Tangle} Tangle
  * @typedef {import('pzp-db').Msg} Msg
- * @typedef {NonNullable<ReturnType<PZPDB['getTangle']>>} DBTangle
+ * @typedef {import('pzp-db/db-tangle')} DBTangle
  * @typedef {string} MsgID
  * @typedef {'none'|'all'|`newest-${number}`|'dict'|'set'} GoalDSL
  * @typedef {'none'|'all'|'newest'|'dict'|'set'} GoalType
@@ -288,12 +288,12 @@ function initGoals(peer, config) {
       // (Loop again with heavy computations now that it's inevitable:)
       for (const [ tangle, min] of validTangles) {
         const minMsgIDs = tangle
-        // @ts-ignore
           .topoSort()
-          // @ts-ignore
           .filter((msgID) => tangle.getDepth(msgID) === min)
-        // @ts-ignore
-        const { erasables } = tangle.getDeletablesAndErasables(...minMsgIDs)
+        const deletablesErasables = tangle.getDeletablesAndErasables(...minMsgIDs)
+        // TODO: returning 'trail' to be on the safe side and not throw away too much. but i'm confused why the algo would've gotten this far but then this still manages to be null
+        if (!deletablesErasables) return ['trail']
+        const { erasables } = deletablesErasables
         if (erasables.has(msgID)) return ['trail']
       }
 

package.json

@@ -33,7 +33,7 @@
     "bs58": "^5.0.0",
     "c8": "7",
     "pzp-caps": "^1.0.0",
-    "pzp-db": "^1.0.1",
+    "pzp-db": "^1.0.4",
     "pzp-dict": "^1.0.0",
     "pzp-keypair": "^1.0.0",
     "pzp-set": "^1.0.0",