fix bug just accidentally introduced

e890afb8 · Moody Salem · 631bf996 · e890afb8
Commit e890afb8 authored May 07, 2021 by Moody Salem
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route.ts src/entities/route.ts +2 -1

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--- a/src/entities/route.ts
+++ b/src/entities/route.ts
@@ -36,7 +36,8 @@ export class Route {
      'INPUT'
    )
    invariant(
-      (output?.isToken && pairs[pairs.length - 1].involvesToken(output)) ||
+      typeof output === 'undefined' ||
+        (output?.isToken && pairs[pairs.length - 1].involvesToken(output)) ||
        (output === ETHER && weth && pairs[pairs.length - 1].involvesToken(weth)),
      'OUTPUT'
    )