fix: ignore net-label-only nets during trace routing

lib/solvers/LongDistancePairSolver/LongDistancePairSolver.ts

@@ -57,7 +57,8 @@ export class LongDistancePairSolver extends BaseSolver {
       primaryConnectedPinIds.add(pair.pins[1].pinId)
     }
 
-    const { netConnMap } = getConnectivityMapsFromInputProblem(inputProblem)
+    const { directConnMap, netConnMap } =
+      getConnectivityMapsFromInputProblem(inputProblem)
     this.netConnMap = netConnMap
     const pinMap = new Map<PinId, InputPin & { chipId: string }>()
     for (const chip of inputProblem.chips) {
@@ -73,7 +74,7 @@ export class LongDistancePairSolver extends BaseSolver {
     > = []
     const addedPairKeys = new Set<string>()
 
-    for (const netId of Object.keys(netConnMap.netMap)) {
+    for (const netId of Object.keys(directConnMap.netMap)) {
       const allPinIdsInNet = netConnMap.getIdsConnectedToNet(netId)
       if (allPinIdsInNet.length < 2) continue
 

lib/solvers/MspConnectionPairSolver/MspConnectionPairSolver.ts

@@ -75,7 +75,7 @@ export class MspConnectionPairSolver extends BaseSolver {
       }
     }
 
-    this.queuedDcNetIds = Object.keys(netConnMap.netMap)
+    this.queuedDcNetIds = Object.keys(directConnMap.netMap)
   }
 
   override getConstructorParams(): ConstructorParameters<
@@ -94,7 +94,7 @@ export class MspConnectionPairSolver extends BaseSolver {
 
     const dcNetId = this.queuedDcNetIds.shift()!
 
-    const allIds = this.globalConnMap.getIdsConnectedToNet(dcNetId) as string[]
+    const allIds = this.dcConnMap.getIdsConnectedToNet(dcNetId) as string[]
     const directlyConnectedPins = allIds.filter((id) => !!this.pinMap[id])
 
     if (directlyConnectedPins.length <= 1) {

lib/solvers/MspConnectionPairSolver/getConnectivityMapFromInputProblem.ts

@@ -14,7 +14,7 @@ export const getConnectivityMapsFromInputProblem = (
     ])
   }
 
-  const netConnMap = new ConnectivityMap(directConnMap.netMap)
+  const netConnMap = new ConnectivityMap(structuredClone(directConnMap.netMap))
 
   for (const netConn of inputProblem.netConnections) {
     netConnMap.addConnections([[netConn.netId, ...netConn.pinIds]])

package.json

@@ -28,5 +28,8 @@
   },
   "peerDependencies": {
     "typescript": "^5"
+  },
+  "dependencies": {
+    "sharp": "^0.34.5"
   }
 }