Revert moving formatUtils into utils

4 files changed, 95 insertions, 43 deletions

diff --git a/packages/web3-wrapper/src/index.ts b/packages/web3-wrapper/src/index.ts
index 19fe0836c..66ef0a784 100644
--- a/packages/web3-wrapper/src/index.ts
+++ b/packages/web3-wrapper/src/index.ts
@@ -1,3 +1,2 @@
 export { Web3Wrapper, uniqueVersionIds, NodeType } from './web3_wrapper';
 export { Web3WrapperErrors } from './types';
-export { marshaller } from './marshaller';
diff --git a/packages/web3-wrapper/src/marshaller.ts b/packages/web3-wrapper/src/marshaller.ts
index 584f6252d..15384417e 100644
--- a/packages/web3-wrapper/src/marshaller.ts
+++ b/packages/web3-wrapper/src/marshaller.ts
@@ -1,4 +1,4 @@
-import { addressUtils, formatUtils } from '@0xproject/utils';
+import { addressUtils } from '@0xproject/utils';
 import {
     BlockParam,
     BlockParamLiteral,
@@ -14,6 +14,8 @@ import {
 import ethUtil = require('ethereumjs-util');
 import * as _ from 'lodash';
 
+import { utils } from './utils';
+
 import {
     BlockWithoutTransactionDataRPC,
     BlockWithTransactionDataRPC,
@@ -29,30 +31,26 @@ export const marshaller = {
     ): BlockWithoutTransactionData {
         const block = {
             ...blockWithHexValues,
-            gasLimit: formatUtils.convertHexToNumber(blockWithHexValues.gasLimit),
-            gasUsed: formatUtils.convertHexToNumber(blockWithHexValues.gasUsed),
-            size: formatUtils.convertHexToNumber(blockWithHexValues.size),
-            timestamp: formatUtils.convertHexToNumber(blockWithHexValues.timestamp),
-            number: _.isNull(blockWithHexValues.number)
-                ? null
-                : formatUtils.convertHexToNumber(blockWithHexValues.number),
-            difficulty: formatUtils.convertAmountToBigNumber(blockWithHexValues.difficulty),
-            totalDifficulty: formatUtils.convertAmountToBigNumber(blockWithHexValues.totalDifficulty),
+            gasLimit: utils.convertHexToNumber(blockWithHexValues.gasLimit),
+            gasUsed: utils.convertHexToNumber(blockWithHexValues.gasUsed),
+            size: utils.convertHexToNumber(blockWithHexValues.size),
+            timestamp: utils.convertHexToNumber(blockWithHexValues.timestamp),
+            number: _.isNull(blockWithHexValues.number) ? null : utils.convertHexToNumber(blockWithHexValues.number),
+            difficulty: utils.convertAmountToBigNumber(blockWithHexValues.difficulty),
+            totalDifficulty: utils.convertAmountToBigNumber(blockWithHexValues.totalDifficulty),
         };
         return block;
     },
     unmarshalIntoBlockWithTransactionData(blockWithHexValues: BlockWithTransactionDataRPC): BlockWithTransactionData {
         const block = {
             ...blockWithHexValues,
-            gasLimit: formatUtils.convertHexToNumber(blockWithHexValues.gasLimit),
-            gasUsed: formatUtils.convertHexToNumber(blockWithHexValues.gasUsed),
-            size: formatUtils.convertHexToNumber(blockWithHexValues.size),
-            timestamp: formatUtils.convertHexToNumber(blockWithHexValues.timestamp),
-            number: _.isNull(blockWithHexValues.number)
-                ? null
-                : formatUtils.convertHexToNumber(blockWithHexValues.number),
-            difficulty: formatUtils.convertAmountToBigNumber(blockWithHexValues.difficulty),
-            totalDifficulty: formatUtils.convertAmountToBigNumber(blockWithHexValues.totalDifficulty),
+            gasLimit: utils.convertHexToNumber(blockWithHexValues.gasLimit),
+            gasUsed: utils.convertHexToNumber(blockWithHexValues.gasUsed),
+            size: utils.convertHexToNumber(blockWithHexValues.size),
+            timestamp: utils.convertHexToNumber(blockWithHexValues.timestamp),
+            number: _.isNull(blockWithHexValues.number) ? null : utils.convertHexToNumber(blockWithHexValues.number),
+            difficulty: utils.convertAmountToBigNumber(blockWithHexValues.difficulty),
+            totalDifficulty: utils.convertAmountToBigNumber(blockWithHexValues.totalDifficulty),
             transactions: [] as Transaction[],
         };
         block.transactions = _.map(blockWithHexValues.transactions, (tx: TransactionRPC) => {
@@ -64,14 +62,14 @@ export const marshaller = {
     unmarshalTransaction(txRpc: TransactionRPC): Transaction {
         const tx = {
             ...txRpc,
-            blockNumber: !_.isNull(txRpc.blockNumber) ? formatUtils.convertHexToNumber(txRpc.blockNumber) : null,
+            blockNumber: !_.isNull(txRpc.blockNumber) ? utils.convertHexToNumber(txRpc.blockNumber) : null,
             transactionIndex: !_.isNull(txRpc.transactionIndex)
-                ? formatUtils.convertHexToNumber(txRpc.transactionIndex)
+                ? utils.convertHexToNumber(txRpc.transactionIndex)
                 : null,
-            nonce: formatUtils.convertHexToNumber(txRpc.nonce),
-            gas: formatUtils.convertHexToNumber(txRpc.gas),
-            gasPrice: formatUtils.convertAmountToBigNumber(txRpc.gasPrice),
-            value: formatUtils.convertAmountToBigNumber(txRpc.value),
+            nonce: utils.convertHexToNumber(txRpc.nonce),
+            gas: utils.convertHexToNumber(txRpc.gas),
+            gasPrice: utils.convertAmountToBigNumber(txRpc.gasPrice),
+            value: utils.convertAmountToBigNumber(txRpc.value),
         };
         return tx;
     },
@@ -81,12 +79,10 @@ export const marshaller = {
         }
         const txData = {
             ...txDataRpc,
-            value: !_.isUndefined(txDataRpc.value) ? formatUtils.convertHexToNumber(txDataRpc.value) : undefined,
-            gas: !_.isUndefined(txDataRpc.gas) ? formatUtils.convertHexToNumber(txDataRpc.gas) : undefined,
-            gasPrice: !_.isUndefined(txDataRpc.gasPrice)
-                ? formatUtils.convertHexToNumber(txDataRpc.gasPrice)
-                : undefined,
-            nonce: !_.isUndefined(txDataRpc.nonce) ? formatUtils.convertHexToNumber(txDataRpc.nonce) : undefined,
+            value: !_.isUndefined(txDataRpc.value) ? utils.convertHexToNumber(txDataRpc.value) : undefined,
+            gas: !_.isUndefined(txDataRpc.gas) ? utils.convertHexToNumber(txDataRpc.gas) : undefined,
+            gasPrice: !_.isUndefined(txDataRpc.gasPrice) ? utils.convertHexToNumber(txDataRpc.gasPrice) : undefined,
+            nonce: !_.isUndefined(txDataRpc.nonce) ? utils.convertHexToNumber(txDataRpc.nonce) : undefined,
         };
         return txData;
     },
@@ -133,15 +129,15 @@ export const marshaller = {
         if (_.isUndefined(blockParam)) {
             return BlockParamLiteral.Latest;
         }
-        const encodedBlockParam = _.isNumber(blockParam) ? formatUtils.numberToHex(blockParam) : blockParam;
+        const encodedBlockParam = _.isNumber(blockParam) ? utils.numberToHex(blockParam) : blockParam;
         return encodedBlockParam;
     },
     unmarshalLog(rawLog: RawLogEntry): LogEntry {
         const formattedLog = {
             ...rawLog,
-            logIndex: formatUtils.convertHexToNumberOrNull(rawLog.logIndex),
-            blockNumber: formatUtils.convertHexToNumberOrNull(rawLog.blockNumber),
-            transactionIndex: formatUtils.convertHexToNumberOrNull(rawLog.transactionIndex),
+            logIndex: utils.convertHexToNumberOrNull(rawLog.logIndex),
+            blockNumber: utils.convertHexToNumberOrNull(rawLog.blockNumber),
+            transactionIndex: utils.convertHexToNumberOrNull(rawLog.transactionIndex),
         };
         return formattedLog;
     },
@@ -151,16 +147,14 @@ export const marshaller = {
             to: _.isUndefined(callTxDataBase.to) ? undefined : this.marshalAddress(callTxDataBase.to),
             gasPrice: _.isUndefined(callTxDataBase.gasPrice)
                 ? undefined
-                : formatUtils.encodeAmountAsHexString(callTxDataBase.gasPrice),
-            gas: _.isUndefined(callTxDataBase.gas)
-                ? undefined
-                : formatUtils.encodeAmountAsHexString(callTxDataBase.gas),
+                : utils.encodeAmountAsHexString(callTxDataBase.gasPrice),
+            gas: _.isUndefined(callTxDataBase.gas) ? undefined : utils.encodeAmountAsHexString(callTxDataBase.gas),
             value: _.isUndefined(callTxDataBase.value)
                 ? undefined
-                : formatUtils.encodeAmountAsHexString(callTxDataBase.value),
+                : utils.encodeAmountAsHexString(callTxDataBase.value),
             nonce: _.isUndefined(callTxDataBase.nonce)
                 ? undefined
-                : formatUtils.encodeAmountAsHexString(callTxDataBase.nonce),
+                : utils.encodeAmountAsHexString(callTxDataBase.nonce),
         };
 
         return callTxDataBaseRPC;
diff --git a/packages/web3-wrapper/src/utils.ts b/packages/web3-wrapper/src/utils.ts
new file mode 100644
index 000000000..d13eb9404
--- /dev/null
+++ b/packages/web3-wrapper/src/utils.ts
@@ -0,0 +1,58 @@
+import { BigNumber } from '@0xproject/utils';
+import * as _ from 'lodash';
+
+export const utils = {
+    isBigNumber(value: any): boolean {
+        const isBigNumber = _.isObject(value) && value.isBigNumber;
+        return isBigNumber;
+    },
+    convertHexToNumber(value: string): number {
+        const valueBigNumber = new BigNumber(value);
+        const valueNumber = valueBigNumber.toNumber();
+        return valueNumber;
+    },
+    convertHexToNumberOrNull(hex: string | null): number | null {
+        if (_.isNull(hex)) {
+            return null;
+        }
+        const decimal = this.convertHexToNumber(hex);
+        return decimal;
+    },
+    convertAmountToBigNumber(value: string | number | BigNumber): BigNumber {
+        const num = value || 0;
+        const isBigNumber = utils.isBigNumber(num);
+        if (isBigNumber) {
+            return num as BigNumber;
+        }
+
+        if (_.isString(num) && (num.indexOf('0x') === 0 || num.indexOf('-0x') === 0)) {
+            return new BigNumber(num.replace('0x', ''), 16);
+        }
+
+        const baseTen = 10;
+        return new BigNumber((num as number).toString(baseTen), baseTen);
+    },
+    encodeAmountAsHexString(value: string | number | BigNumber): string {
+        const valueBigNumber = utils.convertAmountToBigNumber(value);
+        const hexBase = 16;
+        const valueHex = valueBigNumber.toString(hexBase);
+
+        return valueBigNumber.lessThan(0) ? '-0x' + valueHex.substr(1) : '0x' + valueHex;
+    },
+    numberToHex(value: number): string {
+        if (!isFinite(value) && !this.isHexStrict(value)) {
+            throw new Error(`Given input ${value} is not a number.`);
+        }
+
+        const valueBigNumber = new BigNumber(value);
+        const hexBase = 16;
+        const result = valueBigNumber.toString(hexBase);
+
+        return valueBigNumber.lt(0) ? '-0x' + result.substr(1) : '0x' + result;
+    },
+    isHexStrict(hex: string | number): boolean {
+        return (
+            (_.isString(hex) || _.isNumber(hex)) && /^(-)?0x[0-9a-f]*$/i.test(_.isNumber(hex) ? hex.toString() : hex)
+        );
+    },
+};
diff --git a/packages/web3-wrapper/src/web3_wrapper.ts b/packages/web3-wrapper/src/web3_wrapper.ts
index 57ad0a0db..495523e44 100644
--- a/packages/web3-wrapper/src/web3_wrapper.ts
+++ b/packages/web3-wrapper/src/web3_wrapper.ts
@@ -1,6 +1,6 @@
 import { assert } from '@0xproject/assert';
 import { schemas } from '@0xproject/json-schemas';
-import { AbiDecoder, addressUtils, BigNumber, formatUtils as utils, intervalUtils, promisify } from '@0xproject/utils';
+import { AbiDecoder, addressUtils, BigNumber, intervalUtils, promisify } from '@0xproject/utils';
 import {
     BlockParam,
     BlockParamLiteral,
@@ -23,6 +23,7 @@ import * as _ from 'lodash';
 
 import { marshaller } from './marshaller';
 import { BlockWithoutTransactionDataRPC, BlockWithTransactionDataRPC, Web3WrapperErrors } from './types';
+import { utils } from './utils';
 
 const BASE_TEN = 10;