ROADMAP

1. [Done] Flash loan for divisible and non-divisible NFTs
2. [Done] Contract to mint new NFTs from existing NFTs. The new minted NFTs represents the permission to use the original NFT.
3. [Done] Ordinary rental of the right of NFT usage.
4. [Done] Tenant pay compulsory collaterals, used to reward those who revoke expired rentals.
5. [Done] Renter can close a following rental
6. [Done] Fire events
7. [Potential] Give me your NFT to borrow fungible tokens!
8. [Potential] Fungible collateral flash loan?

Compilation Instructions

• Clone https://github.com/neo-project/neo-devpack-dotnet/commit/e1dae8f1f2ee066134d9e83539539c5c3fab19ec .

• In neo-devpack-dotnet/src/Neo.Compiler.CSharp/CompilationContext.cs, find these codes at line 478:

  if (methodsExported.Any(u => u.Name == method.Name && u.Parameters.Length == method.Parameters.Length))
      throw new CompilationException(symbol, DiagnosticId.MethodNameConflict, $"Duplicate method key: {method.Name},{method.Parameters.Length}.");

  Replace the two lines with the following codes:

                  //if (methodsExported.Any(u => u.Name == method.Name && u.Parameters.Length == method.Parameters.Length))
                  //    throw new CompilationException(symbol, DiagnosticId.MethodNameConflict, $"Duplicate method key: {method.Name},{method.Parameters.Length}.");
                  AbiMethod? foundMethod = methodsExported.Where(u => u.Name == method.Name && u.Parameters.Length == method.Parameters.Length).FirstOrDefault();
                  if (foundMethod is not null)
                      methodsExported.Remove(foundMethod);

• run neo-devpack-dotnet from source code, with command line arguments PATH_TO_NFTLoan/NFTLoan --debug.

• It's better to check the assembly codes with command dumpnef NFTFlashLoan.nef > NFTFlashLoan.nef.txt if you run into weird exceptions.