From 3b76f829d970b1998e35149ad0e21f0a8f54e2f0 Mon Sep 17 00:00:00 2001
From: Michael FIG <mfig@agoric.com>
Date: Thu, 29 Oct 2020 15:17:49 -0600
Subject: [PATCH] fix: prevent infinite loop when metering BigInt values

---
 packages/transform-metering/src/meter.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/packages/transform-metering/src/meter.js b/packages/transform-metering/src/meter.js
index 587b235a569..6d202358a7d 100644
--- a/packages/transform-metering/src/meter.js
+++ b/packages/transform-metering/src/meter.js
@@ -7,7 +7,7 @@ const { ceil } = Math;
 const ObjectConstructor = Object;
 
 // eslint-disable-next-line no-bitwise
-const bigIntWord = typeof BigInt !== 'undefined' && BigInt(1 << 32);
+const bigIntWord = typeof BigInt !== 'undefined' && BigInt(2) ** BigInt(64);
 const bigIntZero = bigIntWord && BigInt(0);
 
 // Stop deducting when we reach a negative number.
@@ -99,7 +99,6 @@ export function makeAllocateMeter(maybeAbort, meter, allocateCounter = null) {
               remaining = -remaining;
             }
             while (remaining > bigIntZero) {
-              meter[c.METER_COMPUTE](undefined, throwForever);
               remaining /= bigIntWord;
               cost += 1;
             }