From e8f6e345d5c0defd0e81530d83dadc8ee3cf9cb3 Mon Sep 17 00:00:00 2001
From: srisankethu <sanketh.uppalapati@research.iiit.ac.in>
Date: Tue, 8 Jan 2019 01:22:54 +0530
Subject: [PATCH] WIP: Add ST-20 support

---
 .../PrecompiledContracts/Web3+ST20.swift      | 79 +++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 web3swift/PrecompiledContracts/Web3+ST20.swift

diff --git a/web3swift/PrecompiledContracts/Web3+ST20.swift b/web3swift/PrecompiledContracts/Web3+ST20.swift
new file mode 100644
index 000000000..2fbfcb43d
--- /dev/null
+++ b/web3swift/PrecompiledContracts/Web3+ST20.swift
@@ -0,0 +1,79 @@
+import Foundation
+import BigInt
+import EthereumAddress
+import PromiseKit
+
+protocol ISecurityToken: IERC20 {
+
+    func decimals() throws -> UInt8
+    func totalSupply() throws -> BigUInt
+    func getBalance(account: EthereumAddress) throws -> BigUInt
+    func getAllowance(originalOwner: EthereumAddress, delegate: EthereumAddress) throws -> BigUInt
+    func transfer(from: EthereumAddress, to: EthereumAddress, amount: String) throws -> WriteTransaction
+    func transferFrom(from: EthereumAddress, to: EthereumAddress, originalOwner: EthereumAddress, amount: String) throws -> WriteTransaction
+    func approve(from: EthereumAddress, spender: EthereumAddress, amount: String) throws -> WriteTransaction
+    func decreasedApproval(from: EthereumAddress, spender: EthereumAddress, subtractedValue: String) throws -> WriteTransaction
+    func increasedApproval(from: EthereumAddress, spender: EthereumAddress, addedValue: String) throws -> WriteTransaction
+
+    func verifyTransfer(from: EthereumAddress, to: EthereumAddress, originalOwner: EthereumAddress, amount: String) throws -> WriteTransaction
+    func mint(investor: EthereumAddress, amount: String)
+    func mintWithData(investor: EthereumAddress, amount: String, data: Data) throws -> WriteTransaction
+    func burnFromWithData(from: EthereumAddress, burner: EthereumAddress, amount: String, data: Data) throws -> WriteTransaction
+    func burnWithData(burner: EthereumAddress, amount: String, data: Data) throws -> WriteTransaction
+    func checkPermission(delegate: EthereumAddress, module: EthereumAddress, perm: Data) throws -> WriteTransaction
+    func getModule(module: EthereumAddress) throws -> [Data, EthereumAddress, Bool, UInt8, BigUInt, BigUInt]
+    func getModulesByName(name: Data) throws -> EthereumAddress[]
+    func getModulesByType(type: UInt8) throws -> EthereumAddress[]
+    func totalSupplyAt(checkpointId: String) throws -> BigUInt
+    func getBalanceAt(investor: Ethereum, checkpointId: String) throws -> BigUInt
+    func createCheckpoint() throws -> BigUInt
+    func getInvestors() throws -> EthereumAddress[]
+    func getInvestorsAt(checkpointId: String) throws -> EthereumAddress[]
+    func iterateInvestors(start: String, end: String) throws -> EthereumAddress[]
+    func currentCheckpointId() throws -> BigUInt
+    func investors(index: String) throws -> EthereumAddress
+    func withdrawERC20(tokenContract: EthereumAddress, amount: String) throws -> WriteTransaction
+    func changeModuleBudget(module: EthereumAddress, budget: String) throws -> WriteTransaction
+    func updateTokenDetails(newTokenDetails: String) throws -> WriteTransaction
+    func changeGranularity(granularity: String) throws -> WriteTransaction
+    func pruneInvestors(start: String, iters: String) throws -> WriteTransaction
+    func freezeTransfers() throws -> WriteTransaction
+    func unfreezeTransfers() throws -> WriteTransaction
+    func freezeMinting() throws -> WriteTransaction
+    func mintMulti(investors: EthereumAddress[], amounts: String[]) throws -> WriteTransaction
+    func addModule(moduleFactory: EthereumAddress, data: Data, maxCost: String, budget: String) throws -> WriteTransaction
+    func archiveModule(module: EthereumAddress) throws -> WriteTransaction
+    func unarchiveModule(module: EthereumAddress) throws -> WriteTransaction
+    func removeModule(module: EthereumAddress) throws -> WriteTransaction
+    func setController(controller: EthereumAddress) throws -> WriteTransaction
+    func forceTransfer(from: EthereumAddress, to: EthereumAddress, amount: String, data: Data, log: Data) throws -> WriteTransaction
+    func forceBurn(from: EthereumAddress, amount: String, data: Data, log: Data) throws -> WriteTransaction
+    func disableController() throws -> WriteTransaction
+    func getVersion() throws -> UInt8[]
+    func getInvestorCount() throws -> BigUInt
+    func transferWithData(to: EthereumAddress, amount: String, data: Data) throws -> WriteTransaction
+    func transferFromWithData(from: EthereumAddress, to: EthereumAddress, amount: String, data: Data) throws -> WriteTransaction
+    func granularity() throws -> BigUInt
+    
+}
+
+public class ST20: ISecurityToken {
+    func decimals() throws -> UInt8 {
+    }
+    func totalSupply() throws -> BigUInt {
+    }
+    func getBalance(account: EthereumAddress) throws -> BigUInt {
+    }
+    func getAllowance(originalOwner: EthereumAddress, delegate: EthereumAddress) throws -> BigUInt {
+    }
+    func transfer(from: EthereumAddress, to: EthereumAddress, amount: String) throws -> WriteTransaction {
+    }
+    func transferFrom(from: EthereumAddress, to: EthereumAddress, originalOwner: EthereumAddress, amount: String) throws -> WriteTransaction {
+    }
+    func approve(from: EthereumAddress, spender: EthereumAddress, amount: String) throws -> WriteTransaction {
+    }
+    func decreasedApproval(from: EthereumAddress, spender: EthereumAddress, subtractedValue: String) throws -> WriteTransaction {
+    }
+    func increasedApproval(from: EthereumAddress, spender: EthereumAddress, addedValue: String) throws -> WriteTransaction {
+    }
+}