From ee15143dd7caccacdfe33118692d3a77bbd19429 Mon Sep 17 00:00:00 2001
From: Leonid Logvinov <logvinov.leon@gmail.com>
Date: Fri, 1 Dec 2017 23:10:44 -0600
Subject: Remove all contract wrapper

---
 packages/0x.js/src/contract.ts | 98 ------------------------------------------
 1 file changed, 98 deletions(-)
 delete mode 100644 packages/0x.js/src/contract.ts

(limited to 'packages')

diff --git a/packages/0x.js/src/contract.ts b/packages/0x.js/src/contract.ts
deleted file mode 100644
index a4ee03910..000000000
--- a/packages/0x.js/src/contract.ts
+++ /dev/null
@@ -1,98 +0,0 @@
-import {schemas, SchemaValidator} from '@0xproject/json-schemas';
-import promisify = require('es6-promisify');
-import * as _ from 'lodash';
-import * as Web3 from 'web3';
-
-import {AbiType} from './types';
-
-// HACK: Gas estimates on testrpc don't take into account gas refunds.
-// Our calls can trigger max 8 gas refunds for SSTORE per transaction for 15k gas each which gives 120k.
-const GAS_MARGIN = 120000;
-
-export class Contract implements Web3.ContractInstance {
-    public address: string;
-    public abi: Web3.ContractAbi;
-    private contract: Web3.ContractInstance;
-    private defaults: Partial<Web3.TxData>;
-    private validator: SchemaValidator;
-    // This class instance is going to be populated with functions and events depending on the ABI
-    // and we don't know their types in advance
-    [name: string]: any;
-    constructor(web3ContractInstance: Web3.ContractInstance, defaults: Partial<Web3.TxData>) {
-        this.contract = web3ContractInstance;
-        this.address = web3ContractInstance.address;
-        this.abi = web3ContractInstance.abi;
-        this.defaults = defaults;
-        this.populateEvents();
-        this.populateFunctions();
-        this.validator = new SchemaValidator();
-    }
-    private populateFunctions(): void {
-        const functionsAbi = _.filter(this.abi, abiPart => abiPart.type === AbiType.Function);
-        _.forEach(functionsAbi, (functionAbi: Web3.MethodAbi) => {
-            if (functionAbi.constant) {
-                const cbStyleCallFunction = this.contract[functionAbi.name].call;
-                this[functionAbi.name] = {
-                    callAsync: promisify(cbStyleCallFunction, this.contract),
-                };
-            } else {
-                const cbStyleFunction = this.contract[functionAbi.name];
-                const cbStyleEstimateGasFunction = this.contract[functionAbi.name].estimateGas;
-                const estimateGasAsync = promisify(cbStyleEstimateGasFunction, this.contract);
-                this[functionAbi.name] = {
-                    estimateGasAsync,
-                    sendTransactionAsync: this.promisifyWithDefaultParams(cbStyleFunction, estimateGasAsync),
-                };
-            }
-        });
-    }
-    private populateEvents(): void {
-        const eventsAbi = _.filter(this.abi, abiPart => abiPart.type === AbiType.Event);
-        _.forEach(eventsAbi, (eventAbi: Web3.EventAbi) => {
-            this[eventAbi.name] = this.contract[eventAbi.name];
-        });
-    }
-    private promisifyWithDefaultParams(
-        web3CbStyleFunction: (...args: any[]) => void,
-        estimateGasAsync: (...args: any[]) => Promise<number>,
-    ): (...args: any[]) => Promise<any> {
-        const promisifiedWithDefaultParams = async (...args: any[]) => {
-            const promise = new Promise(async (resolve, reject) => {
-                const lastArg = args[args.length - 1];
-                let txData: Partial<Web3.TxData> = {};
-                if (!_.isUndefined(lastArg) && this.isTxData(lastArg)) {
-                    txData = args.pop();
-                }
-                // Gas amount sourced with the following priorities:
-                // 1. Optional param passed in to public method call
-                // 2. Global config passed in at library instantiation
-                // 3. Gas estimate calculation + safety margin
-                const removeUndefinedProperties = _.pickBy;
-                txData = {
-                    ...removeUndefinedProperties(this.defaults),
-                    ...removeUndefinedProperties(txData),
-                };
-                if (_.isUndefined(txData.gas)) {
-                    try {
-                        const estimatedGas = await estimateGasAsync.apply(this.contract, [...args, txData]);
-                        const gas = estimatedGas + GAS_MARGIN;
-                        txData.gas = gas;
-                    } catch (err) {
-                        reject(err);
-                        return;
-                    }
-                }
-                const callback = (err: Error, data: any) => _.isNull(err) ? resolve(data) : reject(err);
-                args.push(txData);
-                args.push(callback);
-                web3CbStyleFunction.apply(this.contract, args);
-            });
-            return promise;
-        };
-        return promisifiedWithDefaultParams;
-    }
-    private isTxData(lastArg: any): boolean {
-        const isValid = this.validator.isValid(lastArg, schemas.txDataSchema);
-        return isValid;
-    }
-}
-- 
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