Set Indestructable

Added an indestructable property to a contract instance

core/vm/contract.go

@@ -58,6 +58,8 @@ type Contract struct {
 	CodeAddr *common.Address
 	Input    []byte
 
+	Indestructable bool
+
 	Gas   uint64
 	value *big.Int
 }

core/vm/eips.go

@@ -83,8 +83,20 @@ func opSelfBalance(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx
 	return nil, nil
 }
 
+// enable2937 applies EIP-2937 (SET_INDESRUCTIBLE Opcode)
+// - Adds an opcode that prevents contract from calling SELFDESTRUCT (0xFF)
+func enable2937(jt *JumpTable) {
+	// New opcode
+	jt[SETINDESTRUCTIBLE] = &operation{
+		execute:     opSetIndestructible,
+		constantGas: GasQuickStep,
+		minStack:    minStack(0, 1),
+		maxStack:    maxStack(0, 1),
+	}
+}
+
 // enable1344 applies EIP-1344 (ChainID Opcode)
-// - Adds an opcode that returns the current chain’s EIP-155 unique identifier
+// - Adds an opcode that returns the current chain's EIP-155 unique identifier
 func enable1344(jt *JumpTable) {
 	// New opcode
 	jt[CHAINID] = &operation{
@@ -95,10 +107,16 @@ func enable1344(jt *JumpTable) {
 	}
 }
 
+// opSetIndestructible implements forbidding a contract from calling SELFDESTRUCT
+func opSetIndestructible(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
+	callContext.contract.Indestructable = true
+	return nil, nil
+}
+
 // opChainID implements CHAINID opcode
 func opChainID(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
-	chainId, _ := uint256.FromBig(interpreter.evm.chainConfig.ChainID)
-	callContext.stack.push(chainId)
+	chainID, _ := uint256.FromBig(interpreter.evm.chainConfig.ChainID)
+	callContext.stack.push(chainID)
 	return nil, nil
 }
 

core/vm/jump_table.go

@@ -57,11 +57,20 @@ var (
 	constantinopleInstructionSet   = newConstantinopleInstructionSet()
 	istanbulInstructionSet         = newIstanbulInstructionSet()
 	yoloV2InstructionSet           = newYoloV2InstructionSet()
+	bastanchuryInstructionSet      = newBastanchuryInstructionSet()
 )
 
 // JumpTable contains the EVM opcodes supported at a given fork.
 type JumpTable [256]*operation
 
+// newBastanchuryInstructionSet returns the instruction set containing
+// - "EIP-2937: SET_INDESTRUCTIBLE opcode"
+func newBastanchuryInstructionSet() JumpTable {
+	instructionSet := newIstanbulInstructionSet()
+	enable2937(&instructionSet)
+	return instructionSet
+}
+
 // newYoloV2InstructionSet creates an instructionset containing
 // - "EIP-2315: Simple Subroutines"
 // - "EIP-2929: Gas cost increases for state access opcodes"