fix(stdlib): use bigint arithmetic in GasFees.mul() for non-integer scalars#22383
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PhilWindle merged 1 commit intomerge-train/spartanfrom Apr 9, 2026
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…calars GasFees.mul() converted bigint fee values to Number for non-integer scalar multiplication, silently losing precision for values above 2^53. Since gas fees are UInt128 and can exceed 2^53 under realistic conditions (e.g. when the fee asset depreciates relative to ETH), this produced incorrect fee calculations in wallet code that calls .mul(1.5). Replaced the Number conversion with scaled bigint arithmetic that preserves full precision for all UInt128 values while maintaining the ceiling behavior needed for fee padding. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
PhilWindle
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Apr 8, 2026
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GasFees.mul() converted bigint fee values to Number for non-integer scalar multiplication, silently losing precision for values above 2^53. Since gas fees are UInt128 and can exceed 2^53 under realistic conditions (e.g. when the fee asset depreciates relative to ETH), this produced incorrect fee calculations in wallet code that calls .mul(1.5).
Replaced the Number conversion with scaled bigint arithmetic that preserves full precision for all UInt128 values while maintaining the ceiling behavior needed for fee padding.