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 | 33 |
1 files changed, 33 insertions, 0 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 new file mode 100644 index 000000000..ba5b4cac9 --- /dev/null +++ b/packages/utils/src/abi_encoder/evm_data_types/int.ts @@ -0,0 +1,33 @@ +/* tslint:disable prefer-function-over-method */ +import { DataItem } from 'ethereum-types'; + +import { BigNumber } from '../../configured_bignumber'; +import { DataTypeFactory } from '../data_type'; + +import { Number } from './number'; + +export class Int extends Number { + private static readonly _matcher = RegExp( + '^int(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}$', + ); + + public static matchType(type: string): boolean { + return Int._matcher.test(type); + } + + public constructor(dataItem: DataItem, dataTypeFactory: DataTypeFactory) { + super(dataItem, Int._matcher, dataTypeFactory); + } + + public getMaxValue(): BigNumber { + return new BigNumber(2).toPower(this._width - 1).sub(1); + } + + public getMinValue(): BigNumber { + return new BigNumber(2).toPower(this._width - 1).times(-1); + } + + public getSignature(): string { + return `int${this._width}`; + } +} |