Improved genesis predeploy, allowing initializing immutables and acce…

…ss chainID from constructor. (0xPolygon#1838)

* Instead of using the deployedCode of the artifact file, extract the code from the deployment result.
* Respect the genesis file's chainID when preparing the EVM context.

command/genesis/predeploy/params.go

@@ -142,6 +142,7 @@ func (p *predeployParams) updateGenesisConfig() error {
 		p.artifactsPath,
 		p.constructorArgs,
 		p.address,
+		p.genesisConfig.Params.ChainID,
 	)
 	if err != nil {
 		return err

helper/predeployment/predeployment.go

@@ -8,14 +8,15 @@ import (
 	"math/big"
 	"os"
 
+	"github.com/umbracle/ethgo/abi"
+
 	"github.com/0xPolygon/polygon-edge/chain"
 	"github.com/0xPolygon/polygon-edge/helper/hex"
 	"github.com/0xPolygon/polygon-edge/state"
 	itrie "github.com/0xPolygon/polygon-edge/state/immutable-trie"
 	"github.com/0xPolygon/polygon-edge/state/runtime"
 	"github.com/0xPolygon/polygon-edge/state/runtime/evm"
 	"github.com/0xPolygon/polygon-edge/types"
-	"github.com/umbracle/ethgo/abi"
 )
 
 var (
@@ -116,7 +117,7 @@ func getModifiedStorageMap(radix *state.Txn, address types.Address) map[types.Ha
 	return storageMap
 }
 
-func getPredeployAccount(address types.Address, input, deployedBytecode []byte) (*chain.GenesisAccount, error) {
+func getPredeployAccount(address types.Address, input []byte, chainID int64) (*chain.GenesisAccount, error) {
 	// Create an instance of the state
 	st := itrie.NewState(itrie.NewMemoryStorage())
 
@@ -142,6 +143,7 @@ func getPredeployAccount(address types.Address, input, deployedBytecode []byte)
 
 	// Create a transition
 	transition := state.NewTransition(config, snapshot, radix)
+	transition.ContextPtr().ChainID = chainID
 
 	// Run the transition through the EVM
 	res := evm.NewEVM().Run(contract, transition, &config)
@@ -161,7 +163,7 @@ func getPredeployAccount(address types.Address, input, deployedBytecode []byte)
 	return &chain.GenesisAccount{
 		Balance: transition.GetBalance(address),
 		Nonce:   transition.GetNonce(address),
-		Code:    deployedBytecode,
+		Code:    res.ReturnValue,
 		Storage: storageMap,
 	}, nil
 }
@@ -172,6 +174,7 @@ func GenerateGenesisAccountFromFile(
 	filepath string,
 	constructorArgs []string,
 	predeployAddress types.Address,
+	chainID int64,
 ) (*chain.GenesisAccount, error) {
 	// Create the artifact from JSON
 	artifact, err := loadContractArtifact(filepath)
@@ -209,5 +212,5 @@ func GenerateGenesisAccountFromFile(
 		finalBytecode = append(artifact.Bytecode, constructor...)
 	}
 
-	return getPredeployAccount(predeployAddress, finalBytecode, artifact.DeployedBytecode)
+	return getPredeployAccount(predeployAddress, finalBytecode, chainID)
 }