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support newer versons of ethereumjs/tx with immutability #61
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NiranjanaBinoy
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Gudahtt
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This package was partially replaced by it's successor `@ethereumjs/tx` in #61, but was left around for the unit tests to ensure the keyring was compatible with both versions. Now that we have moved away from using `ethereum-tx` in in MetaMask itself, we don't really need to keep two versions of the same package around anymore.
Gudahtt
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This package was partially replaced by it's successor `@ethereumjs/tx` in #61, but was left around for the unit tests to ensure the keyring was compatible with both versions. Now that we have moved away from using `ethereum-tx` in in MetaMask itself, we don't really need to keep two versions of the same package around anymore.
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The current implementation of the sign method relies on mutation, which was the case pre version 3.0.0 of ethereumjs/tx. In earlier versions of the library, the passed tx object was modified. In version 3.0.0 immutability and Object.freeze were implemented, and the newly signed tx is returned as a brand new instance of the Transaction.
The change presented here should allow both versions (mutable and immutable) to function, preferring the immutable version.