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Contracts

Built using Foundry. (PS: Uniswap tests are in test/integration-tests/, which uses Hardhat)

Dev

Setup

  1. forge install
  2. forge build

Deploy

  1. forge script scripts/<DeployScriptPath>:<DeployContractName> --rpc-url <RPC_URL> --broadcast --verify --etherscan-api-key <API_KEY> -vvvv

Test

  1. forge test --match-path /test/<TestFile>

EVM & Solidity version

Transient token uses tload and tstore opcode, which is introduced after Dencun hardfork. Hence, EVM version need to set to "cancun" and Solidity version need to be 0.8.25. Add FOUNDRY_PROFILE=main prefix before the forge cli command to compile in v0.8.25.

Contracts

  1. /src: TransientNFT.sol and TransientToken.sol.

Scripts

  1. /scripts: Includes Deploy script for Transient tokens, and DysonFinance script.

Test

  1. /DysonFinanceTest: in Pair.t.sol, Unit test for transient token pair is provided. Please add --fork-url <SEPOLIA_RPC_URL> when running the test. The test need to be compiled in v0.8.17.
  2. Other test is compiled in 0.8.25.

Deployment

Check out Deployment

Gas report

Transient Token (ERC20)

  1. Normal transferFrom(approve + transferFrom) = 109897 wei
  2. Transient transferFrom (transferFrom) = 59626 wei
    Reduce by 45.74%
src/TransientToken.sol:TransientToken contract
Deployment Cost Deployment Size
735274 3752
Function Name min avg median max # calls
allowance 2823 2823 2823 2823 2
approve 46231 46231 46231 46231 1
balanceOf 604 1604 1604 2604 2
mint 68350 68350 68350 68350 3
normalTransferFrom 49761 49761 49761 49761 1
transfer 46714 46714 46714 46714 1
transferFrom 48102 48102 48102 48102 1

Transient NFT (ERC721)

  1. Normal transferFrom(approve + transferFrom) = 116337 wei
  2. Transient transferFrom = 67318 wei
    Reduce by 42.15%
src/TransientNFT.sol:TransientNFT contract
Deployment Cost Deployment Size
1550613 7424
Function Name min avg median max # calls
approve 48780 48780 48780 48780 1
claimBackNFT 31571 60877 60877 90184 2
lend 172961 172967 172967 172973 2
mint 68636 68636 68636 68636 5
normalTransferFrom 58285 58285 58285 58285 1
ownerOf 599 599 599 599 5
safeTransferFrom 60997 60997 60997 60997 1
transferFrom 57643 57643 57643 57643 1