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[method] Add method for sender #5

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[method] Add method for sender #5

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9 changes: 9 additions & 0 deletions quarkchain-ethereum-tx.js
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Original file line number Diff line number Diff line change
Expand Up @@ -307,6 +307,15 @@ class Transaction {
.imul(new BN(this.gasPrice))
.iadd(new BN(this.value));
}

getSenderAddress() {
if (this._from) {
return this._from;
}
const pubkey = this.getSenderPublicKey();
this._from = ethUtil.publicToAddress(pubkey);
return this._from;
}

/**
* validates the signature and checks to see if it has enough gas
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