diff options
Diffstat (limited to 'packages/utils/src')
17 files changed, 75 insertions, 73 deletions
diff --git a/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts b/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts index 4cef60172..10e5c2540 100644 --- a/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts +++ b/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts @@ -2,7 +2,7 @@ import { DataItem } from 'ethereum-types'; import * as _ from 'lodash'; import { Calldata, CalldataBlock, RawCalldata } from '../calldata'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; import { DecodingRules, EncodingRules } from '../utils/rules'; import { DataTypeFactory } from './interfaces'; @@ -25,7 +25,7 @@ export abstract class DataType { } public encode(value: any, rules?: EncodingRules, selector?: string): string { - const rules_ = _.isUndefined(rules) ? Constants.DEFAULT_ENCODING_RULES : rules; + const rules_ = _.isUndefined(rules) ? constants.DEFAULT_ENCODING_RULES : rules; const calldata = new Calldata(rules_); if (!_.isUndefined(selector)) { calldata.setSelector(selector); @@ -44,7 +44,7 @@ export abstract class DataType { } const hasSelector = !_.isUndefined(selector); const rawCalldata = new RawCalldata(calldata, hasSelector); - const rules_ = _.isUndefined(rules) ? Constants.DEFAULT_DECODING_RULES : rules; + const rules_ = _.isUndefined(rules) ? constants.DEFAULT_DECODING_RULES : rules; const value = this.generateValue(rawCalldata, rules_); return value; } diff --git a/packages/utils/src/abi_encoder/abstract_data_types/types/pointer.ts b/packages/utils/src/abi_encoder/abstract_data_types/types/pointer.ts index 8e597636b..3d38deb94 100644 --- a/packages/utils/src/abi_encoder/abstract_data_types/types/pointer.ts +++ b/packages/utils/src/abi_encoder/abstract_data_types/types/pointer.ts @@ -3,7 +3,7 @@ import * as ethUtil from 'ethereumjs-util'; import * as _ from 'lodash'; import { CalldataBlock, CalldataBlocks, RawCalldata } from '../../calldata'; -import * as Constants from '../../utils/constants'; +import { constants } from '../../utils/constants'; import { DecodingRules } from '../../utils/rules'; import { DataType } from '../data_type'; @@ -34,7 +34,7 @@ export abstract class Pointer extends DataType { public generateValue(calldata: RawCalldata, rules: DecodingRules): any { const destinationOffsetBuf = calldata.popWord(); const destinationOffsetHex = ethUtil.bufferToHex(destinationOffsetBuf); - const destinationOffsetRelative = parseInt(destinationOffsetHex, Constants.HEX_BASE); + const destinationOffsetRelative = parseInt(destinationOffsetHex, constants.HEX_BASE); const destinationOffsetAbsolute = calldata.toAbsoluteOffset(destinationOffsetRelative); const currentOffset = calldata.getOffset(); calldata.setOffset(destinationOffsetAbsolute); diff --git a/packages/utils/src/abi_encoder/abstract_data_types/types/set.ts b/packages/utils/src/abi_encoder/abstract_data_types/types/set.ts index aeea7919f..f50ed8298 100644 --- a/packages/utils/src/abi_encoder/abstract_data_types/types/set.ts +++ b/packages/utils/src/abi_encoder/abstract_data_types/types/set.ts @@ -4,7 +4,7 @@ import * as _ from 'lodash'; import { BigNumber } from '../../../configured_bignumber'; import { CalldataBlock, CalldataBlocks, RawCalldata } from '../../calldata'; -import * as Constants from '../../utils/constants'; +import { constants } from '../../utils/constants'; import { DecodingRules } from '../../utils/rules'; import { DataType } from '../data_type'; @@ -54,7 +54,7 @@ export abstract class Set extends DataType { if (this._isArray && _.isUndefined(this._arrayLength)) { const arrayLengthBuf = calldata.popWord(); const arrayLengthHex = ethUtil.bufferToHex(arrayLengthBuf); - const arrayLength = new BigNumber(arrayLengthHex, Constants.HEX_BASE); + const arrayLength = new BigNumber(arrayLengthHex, constants.HEX_BASE); [members] = this._createMembersWithLength(this.getDataItem(), arrayLength.toNumber()); } // Create a new scope in the calldata, before descending into the members of this set. @@ -115,8 +115,8 @@ export abstract class Set extends DataType { if (this._isArray && _.isUndefined(this._arrayLength)) { [members] = this._createMembersWithLength(this.getDataItem(), value.length); const lenBuf = ethUtil.setLengthLeft( - ethUtil.toBuffer(`0x${value.length.toString(Constants.HEX_BASE)}`), - Constants.EVM_WORD_WIDTH_IN_BYTES, + ethUtil.toBuffer(`0x${value.length.toString(constants.HEX_BASE)}`), + constants.EVM_WORD_WIDTH_IN_BYTES, ); block.setHeader(lenBuf); } @@ -205,14 +205,14 @@ export abstract class Set extends DataType { _.each(range, (idx: number) => { const memberDataItem: DataItem = { type: _.isUndefined(this._arrayElementType) ? '' : this._arrayElementType, - name: `${dataItem.name}[${idx.toString(Constants.DEC_BASE)}]`, + name: `${dataItem.name}[${idx.toString(constants.DEC_BASE)}]`, }; const components = dataItem.components; if (!_.isUndefined(components)) { memberDataItem.components = components; } const memberType = this.getFactory().create(memberDataItem, this); - memberIndexByName[idx.toString(Constants.DEC_BASE)] = members.length; + memberIndexByName[idx.toString(constants.DEC_BASE)] = members.length; members.push(memberType); }); return [members, memberIndexByName]; diff --git a/packages/utils/src/abi_encoder/calldata/blocks/pointer.ts b/packages/utils/src/abi_encoder/calldata/blocks/pointer.ts index 654cbe26c..1daf33f7e 100644 --- a/packages/utils/src/abi_encoder/calldata/blocks/pointer.ts +++ b/packages/utils/src/abi_encoder/calldata/blocks/pointer.ts @@ -1,7 +1,7 @@ import * as ethUtil from 'ethereumjs-util'; import * as _ from 'lodash'; -import * as Constants from '../../utils/constants'; +import { constants } from '../../utils/constants'; import { CalldataBlock } from '../calldata_block'; @@ -29,9 +29,9 @@ export class Pointer extends CalldataBlock { const parentOffset = this._parent.getOffsetInBytes(); const parentHeaderSize = this._parent.getHeaderSizeInBytes(); const pointer: number = destinationOffset - (parentOffset + parentHeaderSize); - const pointerHex = `0x${pointer.toString(Constants.HEX_BASE)}`; + const pointerHex = `0x${pointer.toString(constants.HEX_BASE)}`; const pointerBuf = ethUtil.toBuffer(pointerHex); - const pointerBufPadded = ethUtil.setLengthLeft(pointerBuf, Constants.EVM_WORD_WIDTH_IN_BYTES); + const pointerBufPadded = ethUtil.setLengthLeft(pointerBuf, constants.EVM_WORD_WIDTH_IN_BYTES); return pointerBufPadded; } diff --git a/packages/utils/src/abi_encoder/calldata/calldata.ts b/packages/utils/src/abi_encoder/calldata/calldata.ts index 6d8814e06..e5858b524 100644 --- a/packages/utils/src/abi_encoder/calldata/calldata.ts +++ b/packages/utils/src/abi_encoder/calldata/calldata.ts @@ -1,7 +1,7 @@ import * as ethUtil from 'ethereumjs-util'; import * as _ from 'lodash'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; import { EncodingRules } from '../utils/rules'; import * as CalldataBlocks from './blocks'; @@ -31,7 +31,7 @@ export class Calldata { public setSelector(selector: string): void { if (!_.startsWith(selector, '0x')) { throw new Error(`Expected selector to be hex. Missing prefix '0x'`); - } else if (selector.length !== Constants.HEX_SELECTOR_LENGTH_IN_CHARS) { + } else if (selector.length !== constants.HEX_SELECTOR_LENGTH_IN_CHARS) { throw new Error(`Invalid selector '${selector}'`); } this._selector = selector; @@ -206,11 +206,11 @@ export class Calldata { lineStr = `\n${offsetStr}${valueStr}${nameStr}`; } else { // This block has at least one word of value. - offsetStr = `0x${offset.toString(Constants.HEX_BASE)}`.padEnd(offsetPadding); + offsetStr = `0x${offset.toString(constants.HEX_BASE)}`.padEnd(offsetPadding); valueStr = ethUtil .stripHexPrefix( ethUtil.bufferToHex( - block.toBuffer().slice(evmWordStartIndex, Constants.EVM_WORD_WIDTH_IN_BYTES), + block.toBuffer().slice(evmWordStartIndex, constants.EVM_WORD_WIDTH_IN_BYTES), ), ) .padEnd(valuePadding); @@ -223,11 +223,11 @@ export class Calldata { } } // This block has a value that is more than 1 word. - for (let j = Constants.EVM_WORD_WIDTH_IN_BYTES; j < size; j += Constants.EVM_WORD_WIDTH_IN_BYTES) { - offsetStr = `0x${(offset + j).toString(Constants.HEX_BASE)}`.padEnd(offsetPadding); + for (let j = constants.EVM_WORD_WIDTH_IN_BYTES; j < size; j += constants.EVM_WORD_WIDTH_IN_BYTES) { + offsetStr = `0x${(offset + j).toString(constants.HEX_BASE)}`.padEnd(offsetPadding); valueStr = ethUtil .stripHexPrefix( - ethUtil.bufferToHex(block.toBuffer().slice(j, j + Constants.EVM_WORD_WIDTH_IN_BYTES)), + ethUtil.bufferToHex(block.toBuffer().slice(j, j + constants.EVM_WORD_WIDTH_IN_BYTES)), ) .padEnd(valuePadding); nameStr = ' '.repeat(namePadding); diff --git a/packages/utils/src/abi_encoder/calldata/raw_calldata.ts b/packages/utils/src/abi_encoder/calldata/raw_calldata.ts index fbe592fc7..189841989 100644 --- a/packages/utils/src/abi_encoder/calldata/raw_calldata.ts +++ b/packages/utils/src/abi_encoder/calldata/raw_calldata.ts @@ -1,7 +1,7 @@ import * as ethUtil from 'ethereumjs-util'; import * as _ from 'lodash'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; import { Queue } from '../utils/queue'; export class RawCalldata { @@ -24,8 +24,8 @@ export class RawCalldata { this._offset = RawCalldata._INITIAL_OFFSET; // If there's a selector then slice it if (hasSelector) { - const selectorBuf = this._value.slice(Constants.HEX_SELECTOR_LENGTH_IN_BYTES); - this._value = this._value.slice(Constants.HEX_SELECTOR_LENGTH_IN_BYTES); + const selectorBuf = this._value.slice(constants.HEX_SELECTOR_LENGTH_IN_BYTES); + this._value = this._value.slice(constants.HEX_SELECTOR_LENGTH_IN_BYTES); this._selector = ethUtil.bufferToHex(selectorBuf); } } diff --git a/packages/utils/src/abi_encoder/evm_data_types/address.ts b/packages/utils/src/abi_encoder/evm_data_types/address.ts index 07a0bd10c..c45355639 100644 --- a/packages/utils/src/abi_encoder/evm_data_types/address.ts +++ b/packages/utils/src/abi_encoder/evm_data_types/address.ts @@ -4,12 +4,12 @@ import * as _ from 'lodash'; import { AbstractDataTypes, DataTypeFactory } from '../abstract_data_types'; import { RawCalldata } from '../calldata'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; export class Address extends AbstractDataTypes.Blob { private static readonly _SIZE_KNOWN_AT_COMPILE_TIME: boolean = true; private static readonly _ADDRESS_SIZE_IN_BYTES = 20; - private static readonly _DECODED_ADDRESS_OFFSET_IN_BYTES = Constants.EVM_WORD_WIDTH_IN_BYTES - + private static readonly _DECODED_ADDRESS_OFFSET_IN_BYTES = constants.EVM_WORD_WIDTH_IN_BYTES - Address._ADDRESS_SIZE_IN_BYTES; public static matchType(type: string): boolean { @@ -30,7 +30,7 @@ export class Address extends AbstractDataTypes.Blob { throw new Error(`Invalid address: '${value}'`); } const valueBuf = ethUtil.toBuffer(value); - const encodedValueBuf = ethUtil.setLengthLeft(valueBuf, Constants.EVM_WORD_WIDTH_IN_BYTES); + const encodedValueBuf = ethUtil.setLengthLeft(valueBuf, constants.EVM_WORD_WIDTH_IN_BYTES); return encodedValueBuf; } diff --git a/packages/utils/src/abi_encoder/evm_data_types/array.ts b/packages/utils/src/abi_encoder/evm_data_types/array.ts index a86283c2a..272cc4132 100644 --- a/packages/utils/src/abi_encoder/evm_data_types/array.ts +++ b/packages/utils/src/abi_encoder/evm_data_types/array.ts @@ -2,7 +2,7 @@ import { DataItem } from 'ethereum-types'; import * as _ from 'lodash'; import { AbstractDataTypes, DataTypeFactory } from '../abstract_data_types'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; export class Array extends AbstractDataTypes.Set { private static readonly _MATCHER = RegExp('^(.+)\\[([0-9]*)\\]$'); @@ -23,7 +23,7 @@ export class Array extends AbstractDataTypes.Set { throw new Error(`Could not parse array length: ${type}`); } const arrayElementType = matches[1]; - const arrayLength = _.isEmpty(matches[2]) ? undefined : parseInt(matches[2], Constants.DEC_BASE); + const arrayLength = _.isEmpty(matches[2]) ? undefined : parseInt(matches[2], constants.DEC_BASE); return [arrayElementType, arrayLength]; } diff --git a/packages/utils/src/abi_encoder/evm_data_types/bool.ts b/packages/utils/src/abi_encoder/evm_data_types/bool.ts index 7af13506b..0c29f690a 100644 --- a/packages/utils/src/abi_encoder/evm_data_types/bool.ts +++ b/packages/utils/src/abi_encoder/evm_data_types/bool.ts @@ -5,7 +5,7 @@ import * as _ from 'lodash'; import { BigNumber } from '../../configured_bignumber'; import { AbstractDataTypes, DataTypeFactory } from '../abstract_data_types'; import { RawCalldata } from '../calldata'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; export class Bool extends AbstractDataTypes.Blob { private static readonly _SIZE_KNOWN_AT_COMPILE_TIME: boolean = true; @@ -27,7 +27,7 @@ export class Bool extends AbstractDataTypes.Blob { const encodedValue = value ? '0x1' : '0x0'; const encodedValueBuf = ethUtil.setLengthLeft( ethUtil.toBuffer(encodedValue), - Constants.EVM_WORD_WIDTH_IN_BYTES, + constants.EVM_WORD_WIDTH_IN_BYTES, ); return encodedValueBuf; } @@ -35,7 +35,7 @@ export class Bool extends AbstractDataTypes.Blob { public decodeValue(calldata: RawCalldata): boolean { const valueBuf = calldata.popWord(); const valueHex = ethUtil.bufferToHex(valueBuf); - const valueNumber = new BigNumber(valueHex, Constants.HEX_BASE); + const valueNumber = new BigNumber(valueHex, constants.HEX_BASE); if (!(valueNumber.equals(0) || valueNumber.equals(1))) { throw new Error(`Failed to decode boolean. Expected 0x0 or 0x1, got ${valueHex}`); } diff --git a/packages/utils/src/abi_encoder/evm_data_types/dynamic_bytes.ts b/packages/utils/src/abi_encoder/evm_data_types/dynamic_bytes.ts index ac2a1fb6e..2c256cfa9 100644 --- a/packages/utils/src/abi_encoder/evm_data_types/dynamic_bytes.ts +++ b/packages/utils/src/abi_encoder/evm_data_types/dynamic_bytes.ts @@ -4,7 +4,7 @@ import * as _ from 'lodash'; import { AbstractDataTypes, DataTypeFactory } from '../abstract_data_types'; import { RawCalldata } from '../calldata'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; export class DynamicBytes extends AbstractDataTypes.Blob { private static readonly _SIZE_KNOWN_AT_COMPILE_TIME: boolean = false; @@ -37,10 +37,10 @@ export class DynamicBytes extends AbstractDataTypes.Blob { // Encoded value is of the form: <length><value>, with each field padded to be word-aligned. // 1/3 Construct the length const valueBuf = ethUtil.toBuffer(value); - const wordsToStoreValuePadded = Math.ceil(valueBuf.byteLength / Constants.EVM_WORD_WIDTH_IN_BYTES); - const bytesToStoreValuePadded = wordsToStoreValuePadded * Constants.EVM_WORD_WIDTH_IN_BYTES; + const wordsToStoreValuePadded = Math.ceil(valueBuf.byteLength / constants.EVM_WORD_WIDTH_IN_BYTES); + const bytesToStoreValuePadded = wordsToStoreValuePadded * constants.EVM_WORD_WIDTH_IN_BYTES; const lengthBuf = ethUtil.toBuffer(valueBuf.byteLength); - const lengthBufPadded = ethUtil.setLengthLeft(lengthBuf, Constants.EVM_WORD_WIDTH_IN_BYTES); + const lengthBufPadded = ethUtil.setLengthLeft(lengthBuf, constants.EVM_WORD_WIDTH_IN_BYTES); // 2/3 Construct the value DynamicBytes._sanityCheckValue(value); const valueBufPadded = ethUtil.setLengthRight(valueBuf, bytesToStoreValuePadded); @@ -54,9 +54,9 @@ export class DynamicBytes extends AbstractDataTypes.Blob { // 1/2 Decode length const lengthBuf = calldata.popWord(); const lengthHex = ethUtil.bufferToHex(lengthBuf); - const length = parseInt(lengthHex, Constants.HEX_BASE); + const length = parseInt(lengthHex, constants.HEX_BASE); // 2/2 Decode value - const wordsToStoreValuePadded = Math.ceil(length / Constants.EVM_WORD_WIDTH_IN_BYTES); + const wordsToStoreValuePadded = Math.ceil(length / constants.EVM_WORD_WIDTH_IN_BYTES); const valueBufPadded = calldata.popWords(wordsToStoreValuePadded); const valueBuf = valueBufPadded.slice(0, length); const value = ethUtil.bufferToHex(valueBuf); diff --git a/packages/utils/src/abi_encoder/evm_data_types/int.ts b/packages/utils/src/abi_encoder/evm_data_types/int.ts index 3e465fc15..244b720e3 100644 --- a/packages/utils/src/abi_encoder/evm_data_types/int.ts +++ b/packages/utils/src/abi_encoder/evm_data_types/int.ts @@ -4,7 +4,7 @@ import * as _ from 'lodash'; import { BigNumber } from '../../configured_bignumber'; import { AbstractDataTypes, DataTypeFactory } from '../abstract_data_types'; import { RawCalldata } from '../calldata'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; import * as EncoderMath from '../utils/math'; export class Int extends AbstractDataTypes.Blob { @@ -26,7 +26,7 @@ export class Int extends AbstractDataTypes.Blob { const matches = Int._MATCHER.exec(type); const width = !_.isNull(matches) && matches.length === 2 && !_.isUndefined(matches[1]) - ? parseInt(matches[1], Constants.DEC_BASE) + ? parseInt(matches[1], constants.DEC_BASE) : Int._DEFAULT_WIDTH; return width; } diff --git a/packages/utils/src/abi_encoder/evm_data_types/method.ts b/packages/utils/src/abi_encoder/evm_data_types/method.ts index bd4732097..7256a93d9 100644 --- a/packages/utils/src/abi_encoder/evm_data_types/method.ts +++ b/packages/utils/src/abi_encoder/evm_data_types/method.ts @@ -3,7 +3,7 @@ import * as ethUtil from 'ethereumjs-util'; import * as _ from 'lodash'; import { AbstractDataTypes, DataType, DataTypeFactory } from '../abstract_data_types'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; import { DecodingRules, EncodingRules } from '../utils/rules'; import { Tuple } from './tuple'; @@ -62,7 +62,7 @@ export class Method extends AbstractDataTypes.Set { ethUtil.toBuffer( ethUtil .sha3(signature) - .slice(Constants.HEX_SELECTOR_BYTE_OFFSET_IN_CALLDATA, Constants.HEX_SELECTOR_LENGTH_IN_BYTES), + .slice(constants.HEX_SELECTOR_BYTE_OFFSET_IN_CALLDATA, constants.HEX_SELECTOR_LENGTH_IN_BYTES), ), ); return selector; diff --git a/packages/utils/src/abi_encoder/evm_data_types/static_bytes.ts b/packages/utils/src/abi_encoder/evm_data_types/static_bytes.ts index ed1f51f7e..5453d47a0 100644 --- a/packages/utils/src/abi_encoder/evm_data_types/static_bytes.ts +++ b/packages/utils/src/abi_encoder/evm_data_types/static_bytes.ts @@ -4,7 +4,7 @@ import * as _ from 'lodash'; import { AbstractDataTypes, DataTypeFactory } from '../abstract_data_types'; import { RawCalldata } from '../calldata'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; export class StaticBytes extends AbstractDataTypes.Blob { private static readonly _SIZE_KNOWN_AT_COMPILE_TIME: boolean = true; @@ -22,7 +22,7 @@ export class StaticBytes extends AbstractDataTypes.Blob { const matches = StaticBytes._MATCHER.exec(type); const width = !_.isNull(matches) && matches.length === 3 && !_.isUndefined(matches[2]) - ? parseInt(matches[2], Constants.DEC_BASE) + ? parseInt(matches[2], constants.DEC_BASE) : StaticBytes._DEFAULT_WIDTH; return width; } @@ -45,7 +45,7 @@ export class StaticBytes extends AbstractDataTypes.Blob { this._sanityCheckValue(value); const valueBuf = ethUtil.toBuffer(value); // 2/2 Store value as hex - const valuePadded = ethUtil.setLengthRight(valueBuf, Constants.EVM_WORD_WIDTH_IN_BYTES); + const valuePadded = ethUtil.setLengthRight(valueBuf, constants.EVM_WORD_WIDTH_IN_BYTES); return valuePadded; } diff --git a/packages/utils/src/abi_encoder/evm_data_types/string.ts b/packages/utils/src/abi_encoder/evm_data_types/string.ts index e5b2d5f33..ac62ea264 100644 --- a/packages/utils/src/abi_encoder/evm_data_types/string.ts +++ b/packages/utils/src/abi_encoder/evm_data_types/string.ts @@ -4,7 +4,7 @@ import * as _ from 'lodash'; import { AbstractDataTypes, DataTypeFactory } from '../abstract_data_types'; import { RawCalldata } from '../calldata'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; export class String extends AbstractDataTypes.Blob { private static readonly _SIZE_KNOWN_AT_COMPILE_TIME: boolean = false; @@ -25,10 +25,10 @@ export class String extends AbstractDataTypes.Blob { public encodeValue(value: string): Buffer { // Encoded value is of the form: <length><value>, with each field padded to be word-aligned. // 1/3 Construct the length - const wordsToStoreValuePadded = Math.ceil(value.length / Constants.EVM_WORD_WIDTH_IN_BYTES); - const bytesToStoreValuePadded = wordsToStoreValuePadded * Constants.EVM_WORD_WIDTH_IN_BYTES; + const wordsToStoreValuePadded = Math.ceil(value.length / constants.EVM_WORD_WIDTH_IN_BYTES); + const bytesToStoreValuePadded = wordsToStoreValuePadded * constants.EVM_WORD_WIDTH_IN_BYTES; const lengthBuf = ethUtil.toBuffer(value.length); - const lengthBufPadded = ethUtil.setLengthLeft(lengthBuf, Constants.EVM_WORD_WIDTH_IN_BYTES); + const lengthBufPadded = ethUtil.setLengthLeft(lengthBuf, constants.EVM_WORD_WIDTH_IN_BYTES); // 2/3 Construct the value const valueBuf = new Buffer(value); const valueBufPadded = ethUtil.setLengthRight(valueBuf, bytesToStoreValuePadded); @@ -42,9 +42,9 @@ export class String extends AbstractDataTypes.Blob { // 1/2 Decode length const lengthBufPadded = calldata.popWord(); const lengthHexPadded = ethUtil.bufferToHex(lengthBufPadded); - const length = parseInt(lengthHexPadded, Constants.HEX_BASE); + const length = parseInt(lengthHexPadded, constants.HEX_BASE); // 2/2 Decode value - const wordsToStoreValuePadded = Math.ceil(length / Constants.EVM_WORD_WIDTH_IN_BYTES); + const wordsToStoreValuePadded = Math.ceil(length / constants.EVM_WORD_WIDTH_IN_BYTES); const valueBufPadded = calldata.popWords(wordsToStoreValuePadded); const valueBuf = valueBufPadded.slice(0, length); const value = valueBuf.toString('ascii'); diff --git a/packages/utils/src/abi_encoder/evm_data_types/uint.ts b/packages/utils/src/abi_encoder/evm_data_types/uint.ts index 970400a57..df7ea38a4 100644 --- a/packages/utils/src/abi_encoder/evm_data_types/uint.ts +++ b/packages/utils/src/abi_encoder/evm_data_types/uint.ts @@ -4,7 +4,7 @@ import * as _ from 'lodash'; import { BigNumber } from '../../configured_bignumber'; import { AbstractDataTypes, DataTypeFactory } from '../abstract_data_types'; import { RawCalldata } from '../calldata'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; import * as EncoderMath from '../utils/math'; export class UInt extends AbstractDataTypes.Blob { @@ -26,7 +26,7 @@ export class UInt extends AbstractDataTypes.Blob { const matches = UInt._MATCHER.exec(type); const width = !_.isNull(matches) && matches.length === 2 && !_.isUndefined(matches[1]) - ? parseInt(matches[1], Constants.DEC_BASE) + ? parseInt(matches[1], constants.DEC_BASE) : UInt._DEFAULT_WIDTH; return width; } diff --git a/packages/utils/src/abi_encoder/utils/constants.ts b/packages/utils/src/abi_encoder/utils/constants.ts index 05c6783e7..82eeab010 100644 --- a/packages/utils/src/abi_encoder/utils/constants.ts +++ b/packages/utils/src/abi_encoder/utils/constants.ts @@ -1,12 +1,14 @@ import { DecodingRules, EncodingRules } from './rules'; -export const EVM_WORD_WIDTH_IN_BYTES = 32; -export const EVM_WORD_WIDTH_IN_BITS = 256; -export const HEX_BASE = 16; -export const DEC_BASE = 10; -export const BIN_BASE = 2; -export const HEX_SELECTOR_LENGTH_IN_CHARS = 10; -export const HEX_SELECTOR_LENGTH_IN_BYTES = 4; -export const HEX_SELECTOR_BYTE_OFFSET_IN_CALLDATA = 0; -export const DEFAULT_DECODING_RULES: DecodingRules = { structsAsObjects: false }; -export const DEFAULT_ENCODING_RULES: EncodingRules = { optimize: false, annotate: false }; +export const constants = { + EVM_WORD_WIDTH_IN_BYTES: 32, + EVM_WORD_WIDTH_IN_BITS: 256, + HEX_BASE: 16, + DEC_BASE: 10, + BIN_BASE: 2, + HEX_SELECTOR_LENGTH_IN_CHARS: 10, + HEX_SELECTOR_LENGTH_IN_BYTES: 4, + HEX_SELECTOR_BYTE_OFFSET_IN_CALLDATA: 0, + DEFAULT_DECODING_RULES: { structsAsObjects: false } as DecodingRules, + DEFAULT_ENCODING_RULES: { optimize: false, annotate: false } as EncodingRules, +}; diff --git a/packages/utils/src/abi_encoder/utils/math.ts b/packages/utils/src/abi_encoder/utils/math.ts index 9bcdc3af1..d84983c5b 100644 --- a/packages/utils/src/abi_encoder/utils/math.ts +++ b/packages/utils/src/abi_encoder/utils/math.ts @@ -2,7 +2,7 @@ import BigNumber from 'bignumber.js'; import * as ethUtil from 'ethereumjs-util'; import * as _ from 'lodash'; -import * as Constants from '../utils/constants'; +import { constants } from '../utils/constants'; function sanityCheckBigNumberRange( value_: BigNumber | string | number, @@ -17,9 +17,9 @@ function sanityCheckBigNumberRange( } } function bigNumberToPaddedBuffer(value: BigNumber): Buffer { - const valueHex = `0x${value.toString(Constants.HEX_BASE)}`; + const valueHex = `0x${value.toString(constants.HEX_BASE)}`; const valueBuf = ethUtil.toBuffer(valueHex); - const valueBufPadded = ethUtil.setLengthLeft(valueBuf, Constants.EVM_WORD_WIDTH_IN_BYTES); + const valueBufPadded = ethUtil.setLengthLeft(valueBuf, constants.EVM_WORD_WIDTH_IN_BYTES); return valueBufPadded; } /** @@ -37,13 +37,13 @@ export function encodeNumericValue(value_: BigNumber | string | number): Buffer // Case 2/2: Value is negative // Use two's-complement to encode the value // Step 1/3: Convert negative value to positive binary string - const valueBin = value.times(-1).toString(Constants.BIN_BASE); + const valueBin = value.times(-1).toString(constants.BIN_BASE); // Step 2/3: Invert binary value - let invertedValueBin = '1'.repeat(Constants.EVM_WORD_WIDTH_IN_BITS - valueBin.length); + let invertedValueBin = '1'.repeat(constants.EVM_WORD_WIDTH_IN_BITS - valueBin.length); _.each(valueBin, (bit: string) => { invertedValueBin += bit === '1' ? '0' : '1'; }); - const invertedValue = new BigNumber(invertedValueBin, Constants.BIN_BASE); + const invertedValue = new BigNumber(invertedValueBin, constants.BIN_BASE); // Step 3/3: Add 1 to inverted value const negativeValue = invertedValue.plus(1); const encodedValue = bigNumberToPaddedBuffer(negativeValue); @@ -73,13 +73,13 @@ export function safeEncodeNumericValue( export function decodeNumericValue(encodedValue: Buffer, minValue: BigNumber): BigNumber { const valueHex = ethUtil.bufferToHex(encodedValue); // Case 1/3: value is definitely non-negative because of numeric boundaries - const value = new BigNumber(valueHex, Constants.HEX_BASE); + const value = new BigNumber(valueHex, constants.HEX_BASE); if (!minValue.lessThan(0)) { return value; } // Case 2/3: value is non-negative because there is no leading 1 (encoded as two's-complement) - const valueBin = value.toString(Constants.BIN_BASE); - const isValueNegative = valueBin.length === Constants.EVM_WORD_WIDTH_IN_BITS && _.startsWith(valueBin[0], '1'); + const valueBin = value.toString(constants.BIN_BASE); + const isValueNegative = valueBin.length === constants.EVM_WORD_WIDTH_IN_BITS && _.startsWith(valueBin[0], '1'); if (!isValueNegative) { return value; } @@ -89,7 +89,7 @@ export function decodeNumericValue(encodedValue: Buffer, minValue: BigNumber): B _.each(valueBin, (bit: string) => { invertedValueBin += bit === '1' ? '0' : '1'; }); - const invertedValue = new BigNumber(invertedValueBin, Constants.BIN_BASE); + const invertedValue = new BigNumber(invertedValueBin, constants.BIN_BASE); // Step 2/3: Add 1 to inverted value // The result is the two's-complement representation of the input value. const positiveValue = invertedValue.plus(1); |