EIP712Utils class
Internal utility class for common operations related to EIP-712 encoding and decoding.
Constructors
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
- arrayRegex → RegExp
-
Regular expression for detecting array types and extracting the child type and size.
final
- typeRegex → RegExp
-
Regular expression for extracting the base type from a type string.
final
Static Methods
-
abiEncode(
List< String> types, List inputs) → List<int> - Encodes data using the ABI encoding format based on the provided types and inputs.
-
eip712TypedDataV1ValueToJson(
String type, dynamic value) → dynamic - Ensures correct representation of values based on the specified type.
-
encodeStruct(
Eip712TypedData typedData, String type, Map< String, dynamic> data) → List<int> - Encodes a struct with the specified type and data, returning the result as a list of integers. The struct is defined in the Eip712TypedData, and the data parameter contains field values.
-
encodeValue(
Eip712TypedData typedData, String type, dynamic data) → Tuple< String, dynamic> - Encodes a value according to its type in the context of EIP-712 structured data. The method handles array types, struct types, strings, and bytes. Returns a Tuple containing the encoded type and data.
-
getMethodSigature(
Eip712TypedData typedData, String type) → List< int> - Generates the method signature hash for a given EIP-712 typed data and type. The method signature includes all dependencies and their corresponding types and names.
-
legacyV1encode(
List< String> types, List inputs) → List<int> - Encodes data using the legacy EIP-712 encoding format (used in EIP-712 V1) based on the provided types and inputs.
-
structHash(
Eip712TypedData typedData, String type, Map< String, dynamic> data) → List<int> - Calculates the Keccak256 hash of the encoded struct data for a given type. Uses the encodeStruct method to encode the struct data before hashing.
Constants
- bytes32TypeName → const String
- Type name for bytes32.
- domainKeyName → const String
- Key name for the EIP-712 domain.
-
eip191PrefixBytes
→ const List<
int> - Prefix bytes used in EIP-191 signatures.