accounts: upgrade to 2024-12-17

XDCx/token.go

@@ -36,7 +36,7 @@ func RunContract(chain consensus.ChainContext, statedb *state.StateDB, contractA
 		return nil, err
 	}
 	var unpackResult interface{}
-	err = abi.Unpack(&unpackResult, method, result)
+	err = abi.UnpackIntoInterface(&unpackResult, method, result)
 	if err != nil {
 		return nil, err
 	}

XDCx/tradingstate/statedb.go

@@ -89,7 +89,7 @@ func (t *TradingStateDB) Error() error {
 }
 
 // Exist reports whether the given orderId address exists in the state.
-// Notably this also returns true for suicided exchanges.
+// Notably this also returns true for self-destructed exchanges.
 func (t *TradingStateDB) Exist(addr common.Hash) bool {
 	return t.getStateExchangeObject(addr) != nil
 }

XDCxlending/lendingstate/statedb.go

@@ -84,7 +84,7 @@ func (ls *LendingStateDB) Error() error {
 }
 
 // Exist reports whether the given tradeId address exists in the state.
-// Notably this also returns true for suicided lenddinges.
+// Notably this also returns true for self-destructed lenddinges.
 func (ls *LendingStateDB) Exist(addr common.Hash) bool {
 	return ls.getLendingExchange(addr) != nil
 }

accounts/abi/abi.go

@@ -22,17 +22,26 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"math/big"
 
+	"github.com/XinFinOrg/XDPoSChain/common"
 	"github.com/XinFinOrg/XDPoSChain/crypto"
 )
 
 // The ABI holds information about a contract's context and available
-// invokable methods. It will allow you to type check function calls and
+// invocable methods. It will allow you to type check function calls and
 // packs data accordingly.
 type ABI struct {
 	Constructor Method
 	Methods     map[string]Method
 	Events      map[string]Event
+	Errors      map[string]Error
+
+	// Additional "special" functions introduced in solidity v0.6.0.
+	// It's separated from the original default fallback. Each contract
+	// can only define one fallback and receive function.
+	Fallback Method // Note it's also used to represent legacy fallback before v0.6.0
+	Receive  Method
 }
 
 // JSON returns a parsed ABI interface and error if it failed.
@@ -43,7 +52,6 @@ func JSON(reader io.Reader) (ABI, error) {
 	if err := dec.Decode(&abi); err != nil {
 		return ABI{}, err
 	}
-
 	return abi, nil
 }
 
@@ -61,111 +69,246 @@ func (abi ABI) Pack(name string, args ...interface{}) ([]byte, error) {
 			return nil, err
 		}
 		return arguments, nil
-
 	}
 	method, exist := abi.Methods[name]
 	if !exist {
 		return nil, fmt.Errorf("method '%s' not found", name)
 	}
-
 	arguments, err := method.Inputs.Pack(args...)
 	if err != nil {
 		return nil, err
 	}
 	// Pack up the method ID too if not a constructor and return
-	return append(method.Id(), arguments...), nil
+	return append(method.ID, arguments...), nil
 }
 
-// Unpack output in v according to the abi specification
-func (abi ABI) Unpack(v interface{}, name string, output []byte) (err error) {
-	if len(output) == 0 {
-		return errors.New("abi: unmarshalling empty output")
-	}
+func (abi ABI) getArguments(name string, data []byte) (Arguments, error) {
 	// since there can't be naming collisions with contracts and events,
-	// we need to decide whether we're calling a method or an event
+	// we need to decide whether we're calling a method, event or an error
+	var args Arguments
 	if method, ok := abi.Methods[name]; ok {
-		if len(output)%32 != 0 {
-			return errors.New("abi: improperly formatted output")
+		if len(data)%32 != 0 {
+			return nil, fmt.Errorf("abi: improperly formatted output: %q - Bytes: %+v", data, data)
 		}
-		return method.Outputs.Unpack(v, output)
-	} else if event, ok := abi.Events[name]; ok {
-		return event.Inputs.Unpack(v, output)
+		args = method.Outputs
+	}
+	if event, ok := abi.Events[name]; ok {
+		args = event.Inputs
+	}
+	if err, ok := abi.Errors[name]; ok {
+		args = err.Inputs
+	}
+	if args == nil {
+		return nil, fmt.Errorf("abi: could not locate named method, event or error: %s", name)
 	}
-	return errors.New("abi: could not locate named method or event")
+	return args, nil
 }
 
-// UnmarshalJSON implements json.Unmarshaler interface
+// Unpack unpacks the output according to the abi specification.
+func (abi ABI) Unpack(name string, data []byte) ([]interface{}, error) {
+	args, err := abi.getArguments(name, data)
+	if err != nil {
+		return nil, err
+	}
+	return args.Unpack(data)
+}
+
+// UnpackIntoInterface unpacks the output in v according to the abi specification.
+// It performs an additional copy. Please only use, if you want to unpack into a
+// structure that does not strictly conform to the abi structure (e.g. has additional arguments)
+func (abi ABI) UnpackIntoInterface(v interface{}, name string, data []byte) error {
+	args, err := abi.getArguments(name, data)
+	if err != nil {
+		return err
+	}
+	unpacked, err := args.Unpack(data)
+	if err != nil {
+		return err
+	}
+	return args.Copy(v, unpacked)
+}
+
+// UnpackIntoMap unpacks a log into the provided map[string]interface{}.
+func (abi ABI) UnpackIntoMap(v map[string]interface{}, name string, data []byte) (err error) {
+	args, err := abi.getArguments(name, data)
+	if err != nil {
+		return err
+	}
+	return args.UnpackIntoMap(v, data)
+}
+
+// UnmarshalJSON implements json.Unmarshaler interface.
 func (abi *ABI) UnmarshalJSON(data []byte) error {
 	var fields []struct {
-		Type      string
-		Name      string
-		Constant  bool
+		Type    string
+		Name    string
+		Inputs  []Argument
+		Outputs []Argument
+
+		// Status indicator which can be: "pure", "view",
+		// "nonpayable" or "payable".
+		StateMutability string
+
+		// Deprecated Status indicators, but removed in v0.6.0.
+		Constant bool // True if function is either pure or view
+		Payable  bool // True if function is payable
+
+		// Event relevant indicator represents the event is
+		// declared as anonymous.
 		Anonymous bool
-		Inputs    []Argument
-		Outputs   []Argument
 	}
-
 	if err := json.Unmarshal(data, &fields); err != nil {
 		return err
 	}
-
 	abi.Methods = make(map[string]Method)
 	abi.Events = make(map[string]Event)
+	abi.Errors = make(map[string]Error)
 	for _, field := range fields {
 		switch field.Type {
 		case "constructor":
-			abi.Constructor = Method{
-				Inputs: field.Inputs,
+			abi.Constructor = NewMethod("", "", Constructor, field.StateMutability, field.Constant, field.Payable, field.Inputs, nil)
+		case "function":
+			name := ResolveNameConflict(field.Name, func(s string) bool { _, ok := abi.Methods[s]; return ok })
+			abi.Methods[name] = NewMethod(name, field.Name, Function, field.StateMutability, field.Constant, field.Payable, field.Inputs, field.Outputs)
+		case "fallback":
+			// New introduced function type in v0.6.0, check more detail
+			// here https://solidity.readthedocs.io/en/v0.6.0/contracts.html#fallback-function
+			if abi.HasFallback() {
+				return errors.New("only single fallback is allowed")
 			}
-		// empty defaults to function according to the abi spec
-		case "function", "":
-			abi.Methods[field.Name] = Method{
-				Name:    field.Name,
-				Const:   field.Constant,
-				Inputs:  field.Inputs,
-				Outputs: field.Outputs,
+			abi.Fallback = NewMethod("", "", Fallback, field.StateMutability, field.Constant, field.Payable, nil, nil)
+		case "receive":
+			// New introduced function type in v0.6.0, check more detail
+			// here https://solidity.readthedocs.io/en/v0.6.0/contracts.html#fallback-function
+			if abi.HasReceive() {
+				return errors.New("only single receive is allowed")
 			}
-		case "event":
-			abi.Events[field.Name] = Event{
-				Name:      field.Name,
-				Anonymous: field.Anonymous,
-				Inputs:    field.Inputs,
+			if field.StateMutability != "payable" {
+				return errors.New("the statemutability of receive can only be payable")
 			}
+			abi.Receive = NewMethod("", "", Receive, field.StateMutability, field.Constant, field.Payable, nil, nil)
+		case "event":
+			name := ResolveNameConflict(field.Name, func(s string) bool { _, ok := abi.Events[s]; return ok })
+			abi.Events[name] = NewEvent(name, field.Name, field.Anonymous, field.Inputs)
+		case "error":
+			// Errors cannot be overloaded or overridden but are inherited,
+			// no need to resolve the name conflict here.
+			abi.Errors[field.Name] = NewError(field.Name, field.Inputs)
+		default:
+			return fmt.Errorf("abi: could not recognize type %v of field %v", field.Type, field.Name)
 		}
 	}
-
 	return nil
 }
 
-// MethodById looks up a method by the 4-byte id
-// returns nil if none found
+// MethodById looks up a method by the 4-byte id,
+// returns nil if none found.
 func (abi *ABI) MethodById(sigdata []byte) (*Method, error) {
+	if len(sigdata) < 4 {
+		return nil, fmt.Errorf("data too short (%d bytes) for abi method lookup", len(sigdata))
+	}
 	for _, method := range abi.Methods {
-		if bytes.Equal(method.Id(), sigdata[:4]) {
+		if bytes.Equal(method.ID, sigdata[:4]) {
 			return &method, nil
 		}
 	}
 	return nil, fmt.Errorf("no method with id: %#x", sigdata[:4])
 }
 
+// EventByID looks an event up by its topic hash in the
+// ABI and returns nil if none found.
+func (abi *ABI) EventByID(topic common.Hash) (*Event, error) {
+	for _, event := range abi.Events {
+		if bytes.Equal(event.ID.Bytes(), topic.Bytes()) {
+			return &event, nil
+		}
+	}
+	return nil, fmt.Errorf("no event with id: %#x", topic.Hex())
+}
+
+// ErrorByID looks up an error by the 4-byte id,
+// returns nil if none found.
+func (abi *ABI) ErrorByID(sigdata [4]byte) (*Error, error) {
+	for _, errABI := range abi.Errors {
+		if bytes.Equal(errABI.ID[:4], sigdata[:]) {
+			return &errABI, nil
+		}
+	}
+	return nil, fmt.Errorf("no error with id: %#x", sigdata[:])
+}
+
+// HasFallback returns an indicator whether a fallback function is included.
+func (abi *ABI) HasFallback() bool {
+	return abi.Fallback.Type == Fallback
+}
+
+// HasReceive returns an indicator whether a receive function is included.
+func (abi *ABI) HasReceive() bool {
+	return abi.Receive.Type == Receive
+}
+
 // revertSelector is a special function selector for revert reason unpacking.
 var revertSelector = crypto.Keccak256([]byte("Error(string)"))[:4]
 
+// panicSelector is a special function selector for panic reason unpacking.
+var panicSelector = crypto.Keccak256([]byte("Panic(uint256)"))[:4]
+
+// panicReasons map is for readable panic codes
+// see this linkage for the details
+// https://docs.soliditylang.org/en/v0.8.21/control-structures.html#panic-via-assert-and-error-via-require
+// the reason string list is copied from ether.js
+// https://github.com/ethers-io/ethers.js/blob/fa3a883ff7c88611ce766f58bdd4b8ac90814470/src.ts/abi/interface.ts#L207-L218
+var panicReasons = map[uint64]string{
+	0x00: "generic panic",
+	0x01: "assert(false)",
+	0x11: "arithmetic underflow or overflow",
+	0x12: "division or modulo by zero",
+	0x21: "enum overflow",
+	0x22: "invalid encoded storage byte array accessed",
+	0x31: "out-of-bounds array access; popping on an empty array",
+	0x32: "out-of-bounds access of an array or bytesN",
+	0x41: "out of memory",
+	0x51: "uninitialized function",
+}
+
 // UnpackRevert resolves the abi-encoded revert reason. According to the solidity
 // spec https://solidity.readthedocs.io/en/latest/control-structures.html#revert,
-// the provided revert reason is abi-encoded as if it were a call to a function
-// `Error(string)`. So it's a special tool for it.
+// the provided revert reason is abi-encoded as if it were a call to function
+// `Error(string)` or `Panic(uint256)`. So it's a special tool for it.
 func UnpackRevert(data []byte) (string, error) {
 	if len(data) < 4 {
 		return "", errors.New("invalid data for unpacking")
 	}
-	if !bytes.Equal(data[:4], revertSelector) {
+	switch {
+	case bytes.Equal(data[:4], revertSelector):
+		typ, err := NewType("string", "", nil)
+		if err != nil {
+			return "", err
+		}
+		unpacked, err := (Arguments{{Type: typ}}).Unpack(data[4:])
+		if err != nil {
+			return "", err
+		}
+		return unpacked[0].(string), nil
+	case bytes.Equal(data[:4], panicSelector):
+		typ, err := NewType("uint256", "", nil)
+		if err != nil {
+			return "", err
+		}
+		unpacked, err := (Arguments{{Type: typ}}).Unpack(data[4:])
+		if err != nil {
+			return "", err
+		}
+		pCode := unpacked[0].(*big.Int)
+		// uint64 safety check for future
+		// but the code is not bigger than MAX(uint64) now
+		if pCode.IsUint64() {
+			if reason, ok := panicReasons[pCode.Uint64()]; ok {
+				return reason, nil
+			}
+		}
+		return fmt.Sprintf("unknown panic code: %#x", pCode), nil
+	default:
 		return "", errors.New("invalid data for unpacking")
 	}
-	typ, _ := NewType("string")
-	unpacked, err := (Arguments{{Type: typ}}).Unpack2(data[4:])
-	if err != nil {
-		return "", err
-	}
-	return unpacked[0].(string), nil
 }