How to use the @chainsafe/ssz-type-schema.Type.uint function in @chainsafe/ssz-type-schema

To help you get started, we’ve selected a few @chainsafe/ssz-type-schema examples, based on popular ways it is used in public projects.

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github ChainSafe / lodestar / packages / ssz / src / core / equals.ts View on Github external
function _equals(value1: any, value2: any, type: FullSSZType): boolean {
  switch (type.type) {
    case Type.uint:
      if(value1 === Infinity || value2 === Infinity) {
        return value1 === value2;
      }
      return (new BN(value1)).eq(new BN(value2));
    case Type.bool:
      return value1 === value2;
    case Type.bitList:
    case Type.bitVector:
    case Type.byteList:
    case Type.byteVector:
      return value1.equals(value2);
    case Type.list:
      return value1.length === value2.length &&
        value1.every((element1: any, i: number) => equals(element1, value2[i], type.elementType));
    case Type.vector:
      return value1.every((element1: any, i: number) => equals(element1, value2[i], type.elementType));
github ChainSafe / lodestar / packages / eth2.0-utils / src / converters / yaml.ts View on Github external
function _expandYamlValue(value: any, type: FullSSZType): any {
  switch(type.type) {
    case Type.uint:
      if (
        type.byteLength > 6
                && type.useNumber
                && value.toArrayLike(Buffer, type.byteLength).equals(Buffer.alloc(type.byteLength, 255))
      ) {
        return Infinity;
      }
      return type.useNumber ? value.toNumber() : new BN(value);
    case Type.bool:
      return value;
    case Type.bitList:
      return BitList.deserialize(Buffer.from(value.slice(2), "hex"));
    case Type.bitVector:
      return BitVector.fromBitfield(Buffer.from(value.slice(2), "hex"), type.length);
    case Type.byteList:
    case Type.byteVector:
github ChainSafe / lodestar / packages / ssz / src / util / chunk.ts View on Github external
export function chunkCount(type: FullSSZType): number {
  switch (type.type) {
    case Type.uint:
    case Type.bool:
      return 1;
    case Type.bitList:
      return Math.floor((type.maxLength + 255) / 256);
    case Type.bitVector:
      return Math.floor((type.length + 255) / 256);
    case Type.byteList:
      return Math.floor((type.maxLength * itemLength(byte) + 31) / 32);
    case Type.byteVector:
      return Math.floor((type.length * itemLength(byte) + 31) / 32);
    case Type.list:
      return Math.floor((type.maxLength * itemLength(type.elementType) + 31) / 32);
    case Type.vector:
      return Math.floor((type.length * itemLength(type.elementType) + 31) / 32);
    case Type.container:
      return type.fields.length;
github ChainSafe / lodestar / packages / ssz / src / core / clone.ts View on Github external
function _clone(value: any, type: FullSSZType): any {
  const obj: any = {};
  switch (type.type) {
    case Type.uint:
      if (BN.isBN(value)) {
        return value.clone();
      } else {
        return value;
      }
    case Type.bool:
      return value;
    case Type.bitList:
    case Type.bitVector:
      return value.clone();
    case Type.byteList:
    case Type.byteVector:
      return (value as Buffer).slice();
    case Type.list:
    case Type.vector:
      return value.map((element: any) => clone(element, type.elementType));
github ChainSafe / lodestar / packages / ssz / src / core / serialize.ts View on Github external
export function _serialize(value: SerializableValue, type: FullSSZType, output: Buffer, start: number): number {
  switch(type.type) {
    case Type.bool:
      return _serializeBool(value as Bool, output, start);
    case Type.uint:
      return _serializeUint(value as Uint, type, output, start);
    case Type.bitList:
      return _serializeBitList(value as BitList, type, output, start);
    case Type.bitVector:
      return _serializeBitVector(value as BitVector, type, output, start);
    case Type.byteList:
    case Type.byteVector:
      return _serializeByteArray(value as Bytes, type, output, start);
    case Type.list:
    case Type.vector:
      return _serializeArray(value as SerializableArray, type, output, start);
    case Type.container:
      return _serializeObject(value as SerializableObject, type, output, start);
  }
}
github ChainSafe / lodestar / packages / eth2.0-utils / src / converters / json.ts View on Github external
function expandJsonValue(value: any, type: FullSSZType): any {
  switch (type.type) {
    case Type.uint:
      if (type.byteLength > 6 && type.useNumber)
        return Infinity;
      return type.useNumber ? new BN(value).toNumber() : new BN(value);
    case Type.bool:
      return value;
    case Type.bitList:
      return BitList.deserialize(Buffer.from(value.slice(2), "hex"));
    case Type.bitVector:
      return BitVector.fromBitfield(Buffer.from(value.slice(2), "hex"), type.length);
    case Type.byteList:
    case Type.byteVector:
      return Buffer.from(value.slice(2), "hex");
    case Type.list:
    case Type.vector:
      return value.map((element: any) => expandJsonValue(element, type.elementType));
    case Type.container:
github ChainSafe / lodestar / packages / ssz / src / core / hashTreeRoot.ts View on Github external
export function _hashTreeRoot(value: SerializableValue, type: FullSSZType): Buffer {
  let elementType: FullSSZType;
  switch (type.type) {
    case Type.uint:
    case Type.bool:
    case Type.byteVector:
      return merkleize(pack([value], type));
    case Type.bitVector:
      value = value as BitVector;
      return merkleize(chunkify(Buffer.from(value.toBitfield())), chunkCount(type));
    case Type.bitList:
      value = value as BitList;
      return mixInLength(
        merkleize(chunkify(Buffer.from(value.toBitfield())), chunkCount(type)),
        value.bitLength
      );
    case Type.byteList:
      value = value as Bytes;
      return mixInLength(
        merkleize(pack([value], type), chunkCount(type)),
github ChainSafe / lodestar / packages / ssz / src / core / deserialize.ts View on Github external
export function _deserialize(data: Buffer, type: FullSSZType, start: number, end: number): SerializableValue {
  switch (type.type) {
    case Type.uint:
      return _deserializeUint(data, type, start);
    case Type.bool:
      return _deserializeBool(data, start);
    case Type.bitList:
      return _deserializeBitList(data, type, start, end);
    case Type.bitVector:
      return _deserializeBitVector(data, type, start, end);
    case Type.byteList:
    case Type.byteVector:
      return _deserializeByteArray(data, type, start, end);
    case Type.list:
    case Type.vector:
      return _deserializeArray(data, type, start, end);
    case Type.container:
      return _deserializeObject(data, type, start, end);
  }
github ChainSafe / lodestar / packages / ssz / src / core / assertValidValue.ts View on Github external
export function _assertValidValue(value: any, type: FullSSZType): void {
  switch (type.type) {
    case Type.uint:
      assert(BN.isBN(value) || value === Number(value), "Invalid uint: not a uint");
      if (value === Infinity) {
        break;
      }
      assert((new BN(value)).gten(0), "Invalid uint: value < 0");
      assert((new BN(value)).lt((new BN(2)).pow(new BN(type.byteLength * 8))), "Invalid uint: not in range");
      break;
    case Type.bool:
      assert(value === true || value === false, "Invalid boolean: not a boolean");
      break;
    case Type.bitList:
      assert(BitList.isBitList(value), "Invalid BitList: not a BitList");
      assert(value.bitLength <= type.maxLength, "Invalid BitList: longer than max length");
      break;
    case Type.bitVector:
      assert(BitVector.isBitVector(value), "Invalid BitVector: not a BitVector");
github ChainSafe / lodestar / packages / ssz / src / core / createValue.ts View on Github external
function _createValue(type: FullSSZType, value: any = null): any {
  if (value === null || value === undefined) {
    value = defaultValue(type);
  }
  switch(type.type) {
    case Type.uint:
    case Type.bool:
    case Type.bitList:
    case Type.bitVector:
    case Type.byteList:
    case Type.byteVector:
      assertValidValue(type, value);
      return value;
    case Type.list:
      assert(Array.isArray(value));
      return value.map((v: any) =>
        _createValue(type.elementType, v));
    case Type.vector:
      assert(Array.isArray(value));
      return Array.from({length: type.length}, (_, i) =>
        _createValue(type.elementType, value[i]));
    case Type.container: