diff options
Diffstat (limited to 'packages/utils/src/abi_encoder/evm_data_types/int.ts')
-rw-r--r-- | packages/utils/src/abi_encoder/evm_data_types/int.ts | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/packages/utils/src/abi_encoder/evm_data_types/int.ts b/packages/utils/src/abi_encoder/evm_data_types/int.ts deleted file mode 100644 index f8be1f778..000000000 --- a/packages/utils/src/abi_encoder/evm_data_types/int.ts +++ /dev/null @@ -1,63 +0,0 @@ -import { DataItem, SolidityTypes } from 'ethereum-types'; -import * as _ from 'lodash'; - -import { BigNumber } from '../../configured_bignumber'; -import { DataTypeFactory } from '../abstract_data_types/interfaces'; -import { AbstractBlobDataType } from '../abstract_data_types/types/blob'; -import { RawCalldata } from '../calldata/raw_calldata'; -import { constants } from '../utils/constants'; -import * as EncoderMath from '../utils/math'; - -export class IntDataType extends AbstractBlobDataType { - private static readonly _MATCHER = RegExp( - '^int(8|16|24|32|40|48|56|64|72|80|88|96|104|112|120|128|136|144|152|160|168|176|184|192|200|208|216|224|232|240|248|256){0,1}$', - ); - private static readonly _SIZE_KNOWN_AT_COMPILE_TIME: boolean = true; - private static readonly _MAX_WIDTH: number = 256; - private static readonly _DEFAULT_WIDTH: number = IntDataType._MAX_WIDTH; - private readonly _width: number; - private readonly _minValue: BigNumber; - private readonly _maxValue: BigNumber; - - public static matchType(type: string): boolean { - return IntDataType._MATCHER.test(type); - } - - private static _decodeWidthFromType(type: string): number { - const matches = IntDataType._MATCHER.exec(type); - const width = - !_.isNull(matches) && matches.length === 2 && !_.isUndefined(matches[1]) - ? parseInt(matches[1], constants.DEC_BASE) - : IntDataType._DEFAULT_WIDTH; - return width; - } - - public constructor(dataItem: DataItem, dataTypeFactory: DataTypeFactory) { - super(dataItem, dataTypeFactory, IntDataType._SIZE_KNOWN_AT_COMPILE_TIME); - if (!IntDataType.matchType(dataItem.type)) { - throw new Error(`Tried to instantiate Int with bad input: ${dataItem}`); - } - this._width = IntDataType._decodeWidthFromType(dataItem.type); - this._minValue = new BigNumber(2).exponentiatedBy(this._width - 1).times(-1); - this._maxValue = new BigNumber(2).exponentiatedBy(this._width - 1).minus(1); - } - - public encodeValue(value: BigNumber | string | number): Buffer { - const encodedValue = EncoderMath.safeEncodeNumericValue(value, this._minValue, this._maxValue); - return encodedValue; - } - - public decodeValue(calldata: RawCalldata): BigNumber | number { - const valueBuf = calldata.popWord(); - const value = EncoderMath.safeDecodeNumericValue(valueBuf, this._minValue, this._maxValue); - const numberOfBytesInUint8 = 8; - if (this._width === numberOfBytesInUint8) { - return value.toNumber(); - } - return value; - } - - public getSignatureType(): string { - return `${SolidityTypes.Int}${this._width}`; - } -} |