Fix CostMatrix.clone causing unnecessary memory pressure #147
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Since we're about to replace the whole of `_bits` with a new value, calling the constructor leads to the code creating a full 2500 big `UInt8Array` just to replace it instantly. Fix the issue by doing the same trick `CostMatrix.deserialize` does; use `Object.create` to skip the constructor cost.
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Since we're about to replace the whole of
_bitswith a new value, calling the constructor leads to the code creating a full 2500 bigUInt8Arrayjust to replace it instantly.Fix the issue by doing the same trick
CostMatrix.deserializedoes; useObject.createto skip the constructor cost.