From 0844c8c6919f6d98ebe8a9501360ef5bc362dff3 Mon Sep 17 00:00:00 2001
From: Determinant <tederminant@gmail.com>
Date: Wed, 19 Aug 2020 01:25:20 -0400
Subject: catch up with the new P-Chain cross-chain impl

---
 plugin/evm/atomic_tx.go | 64 -------------------------------------------------
 1 file changed, 64 deletions(-)
 delete mode 100644 plugin/evm/atomic_tx.go

(limited to 'plugin/evm/atomic_tx.go')

diff --git a/plugin/evm/atomic_tx.go b/plugin/evm/atomic_tx.go
deleted file mode 100644
index e8e48f7..0000000
--- a/plugin/evm/atomic_tx.go
+++ /dev/null
@@ -1,64 +0,0 @@
-// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
-// See the file LICENSE for licensing terms.
-
-package evm
-
-import (
-	"fmt"
-
-	"github.com/ava-labs/gecko/database"
-	"github.com/ava-labs/gecko/ids"
-	"github.com/ava-labs/gecko/utils/crypto"
-	"github.com/ava-labs/gecko/utils/hashing"
-	"github.com/ava-labs/gecko/vms/components/verify"
-	"github.com/ava-labs/gecko/vms/secp256k1fx"
-)
-
-// UnsignedAtomicTx ...
-type UnsignedAtomicTx interface {
-	initialize(vm *VM, bytes []byte) error
-	ID() ids.ID
-	// UTXOs this tx consumes
-	InputUTXOs() ids.Set
-	// Attempts to verify this transaction with the provided state.
-	SemanticVerify(db database.Database, creds []verify.Verifiable) TxError
-	Accept(database.Batch) error
-}
-
-// AtomicTx is an operation that can be decided without being proposed, but must
-// have special control over database commitment
-type AtomicTx struct {
-	UnsignedAtomicTx `serialize:"true"`
-	// Credentials that authorize the inputs to be spent
-	Credentials []verify.Verifiable `serialize:"true" json:"credentials"`
-}
-
-func (vm *VM) signAtomicTx(tx *AtomicTx, signers [][]*crypto.PrivateKeySECP256K1R) error {
-	unsignedBytes, err := vm.codec.Marshal(tx.UnsignedAtomicTx)
-	if err != nil {
-		return fmt.Errorf("couldn't marshal UnsignedAtomicTx: %w", err)
-	}
-
-	// Attach credentials
-	hash := hashing.ComputeHash256(unsignedBytes)
-	tx.Credentials = make([]verify.Verifiable, len(signers))
-	for i, credKeys := range signers {
-		cred := &secp256k1fx.Credential{
-			Sigs: make([][crypto.SECP256K1RSigLen]byte, len(credKeys)),
-		}
-		for j, key := range credKeys {
-			sig, err := key.SignHash(hash) // Sign hash
-			if err != nil {
-				return fmt.Errorf("problem generating credential: %w", err)
-			}
-			copy(cred.Sigs[j][:], sig)
-		}
-		tx.Credentials[i] = cred // Attach credential
-	}
-
-	txBytes, err := vm.codec.Marshal(tx)
-	if err != nil {
-		return fmt.Errorf("couldn't marshal AtomicTx: %w", err)
-	}
-	return tx.initialize(vm, txBytes)
-}
-- 
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