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author | Hsuan Lee <hsuan@cobinhood.com> | 2019-01-19 18:42:04 +0800 |
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committer | Hsuan Lee <hsuan@cobinhood.com> | 2019-01-19 18:42:04 +0800 |
commit | 7ae38906926dc09bc10670c361af0d2bf0050426 (patch) | |
tree | 5fb10ae366b987db09e4ddb4bc3ba0f75404ad08 /packages/utils/src/abi_encoder/evm_data_types/uint.ts | |
parent | b5fd3c72a08aaa6957917d74c333387a16edf66b (diff) | |
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Update dependency packages
Diffstat (limited to 'packages/utils/src/abi_encoder/evm_data_types/uint.ts')
-rw-r--r-- | packages/utils/src/abi_encoder/evm_data_types/uint.ts | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/packages/utils/src/abi_encoder/evm_data_types/uint.ts b/packages/utils/src/abi_encoder/evm_data_types/uint.ts deleted file mode 100644 index a82aa789e..000000000 --- a/packages/utils/src/abi_encoder/evm_data_types/uint.ts +++ /dev/null @@ -1,62 +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 UIntDataType extends AbstractBlobDataType { - private static readonly _MATCHER = RegExp( - '^uint(8|16|24|32|40|48|56|64|72|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 = UIntDataType._MAX_WIDTH; - private static readonly _MIN_VALUE = new BigNumber(0); - private readonly _width: number; - private readonly _maxValue: BigNumber; - - public static matchType(type: string): boolean { - return UIntDataType._MATCHER.test(type); - } - - private static _decodeWidthFromType(type: string): number { - const matches = UIntDataType._MATCHER.exec(type); - const width = - !_.isNull(matches) && matches.length === 2 && !_.isUndefined(matches[1]) - ? parseInt(matches[1], constants.DEC_BASE) - : UIntDataType._DEFAULT_WIDTH; - return width; - } - - public constructor(dataItem: DataItem, dataTypeFactory: DataTypeFactory) { - super(dataItem, dataTypeFactory, UIntDataType._SIZE_KNOWN_AT_COMPILE_TIME); - if (!UIntDataType.matchType(dataItem.type)) { - throw new Error(`Tried to instantiate UInt with bad input: ${dataItem}`); - } - this._width = UIntDataType._decodeWidthFromType(dataItem.type); - this._maxValue = new BigNumber(2).exponentiatedBy(this._width).minus(1); - } - - public encodeValue(value: BigNumber | string | number): Buffer { - const encodedValue = EncoderMath.safeEncodeNumericValue(value, UIntDataType._MIN_VALUE, this._maxValue); - return encodedValue; - } - - public decodeValue(calldata: RawCalldata): BigNumber | number { - const valueBuf = calldata.popWord(); - const value = EncoderMath.safeDecodeNumericValue(valueBuf, UIntDataType._MIN_VALUE, this._maxValue); - const numberOfBytesInUint8 = 8; - if (this._width === numberOfBytesInUint8) { - return value.toNumber(); - } - return value; - } - - public getSignatureType(): string { - return `${SolidityTypes.Uint}${this._width}`; - } -} |