new changes

Author: EddiePumpin

.gitignore

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+.encryptedKey.json
+# vscode
+.vscode
+typechain-types
+
+# hardhat
+artifacts
+cache
+deployments
+node_modules
+coverage
+coverage.json
+typechain
+
+# don't push the environment vars!
+.env
+
+# Built application files
+.DS*
+*.apk
+*.ap_
+*.aab
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+#  Uncomment the following line in case you need and you don't have the release build type files in your app
+# release/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# IntelliJ
+*.iml
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/gradle.xml
+.idea/assetWizardSettings.xml
+.idea/dictionaries
+.idea/libraries
+# Android Studio 3 in .gitignore file.
+.idea/caches
+.idea/modules.xml
+# Comment next line if keeping position of elements in Navigation Editor is relevant for you
+.idea/navEditor.xml
+
+# Keystore files
+# Uncomment the following lines if you do not want to check your keystore files in.
+#*.jks
+#*.keystore
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+
+# Google Services (e.g. APIs or Firebase)
+# google-services.json
+
+# Freeline
+freeline.py
+freeline/
+freeline_project_description.json
+
+# fastlane
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots
+fastlane/test_output
+fastlane/readme.md
+
+# Version control
+vcs.xml
+
+# lint
+lint/intermediates/
+lint/generated/
+lint/outputs/
+lint/tmp/
+# lint/reports/
+
+gas-report.txt

.prettierignore

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+node_modules
+package.json
+img
+artifacts
+cache
+coverage
+.env
+.*
+README.md
+coverage.json

.prettierrc

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+{
+  "tabWidth": 2,
+  "useTabs": false,
+  "semi": false,
+  "singleQuote": false
+}

contracts/iWeth.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.4.19;
+
+interface IWeth {
+  function allowance(
+    address owner,
+    address spender
+  ) external view returns (uint256 remaining);
+
+  function approve(
+    address spender,
+    uint256 value
+  ) external returns (bool success);
+
+  function balanceOf(address owner) external view returns (uint256 balance);
+
+  function decimals() external view returns (uint8 decimalPlaces);
+
+  function name() external view returns (string memory tokenName);
+
+  function symbol() external view returns (string memory tokenSymbol);
+
+  function totalSupply() external view returns (uint256 totalTokensIssued);
+
+  function transfer(address to, uint256 value) external returns (bool success);
+
+  function transferFrom(
+    address from,
+    address to,
+    uint256 value
+  ) external returns (bool success);
+
+  function deposit() external payable;
+
+  function withdraw(uint256 wad) external;
+}

contracts/interfaces/AggregatorV3Interface.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.6.0;
+
+interface AggregatorV3Interface {
+  function decimals() external view returns (uint8);
+
+  function description() external view returns (string memory);
+
+  function version() external view returns (uint256);
+
+  // getRoundData and latestRoundData should both raise "No data present"
+  // if they do not have data to report, instead of returning unset values
+  // which could be misinterpreted as actual reported values.
+  function getRoundData(
+    uint80 _roundId
+  )
+    external
+    view
+    returns (
+      uint80 roundId,
+      int256 answer,
+      uint256 startedAt,
+      uint256 updatedAt,
+      uint80 answeredInRound
+    );
+
+  function latestRoundData()
+    external
+    view
+    returns (
+      uint80 roundId,
+      int256 answer,
+      uint256 startedAt,
+      uint256 updatedAt,
+      uint80 answeredInRound
+    );
+}
+

contracts/interfaces/IERC20.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.6.6;
+
+interface IERC20 {
+  function allowance(
+    address owner,
+    address spender
+  ) external view returns (uint256 remaining);
+
+  function approve(
+    address spender,
+    uint256 value
+  ) external returns (bool success);
+
+  function balanceOf(address owner) external view returns (uint256 balance);
+
+  function decimals() external view returns (uint8 decimalPlaces);
+
+  function decreaseApproval(
+    address spender,
+    uint256 subtractedValue
+  ) external returns (bool success);
+
+  function increaseApproval(
+    address spender,
+    uint256 addedValue
+  ) external returns (bool success);
+
+  function name() external view returns (string memory tokenName);
+
+  function symbol() external view returns (string memory tokenSymbol);
+
+  function totalSupply() external view returns (uint256 totalTokensIssued);
+
+  function transfer(address to, uint256 value) external returns (bool success);
+
+  function transferFrom(
+    address from,
+    address to,
+    uint256 value
+  ) external returns (bool success);
+}