public BigInteger MintToken(string symbol, Address from, Address target, byte[] rom, byte[] ram)
{
var Runtime = this;
Runtime.Expect(Runtime.TokenExists(symbol), "invalid token");
IToken token;
using (var m = new ProfileMarker("Runtime.GetToken"))
token = Runtime.GetToken(symbol);
Runtime.Expect(!token.IsFungible(), "token must be non-fungible");
// TODO should not be necessary, verified by trigger
//Runtime.Expect(IsWitness(target), "invalid witness");
Runtime.Expect(Runtime.IsRootChain(), "can only mint nft in root chain");
Runtime.Expect(rom.Length <= TokenContent.MaxROMSize, "ROM size exceeds maximum allowed");
Runtime.Expect(ram.Length <= TokenContent.MaxRAMSize, "RAM size exceeds maximum allowed");
BigInteger tokenID;
using (var m = new ProfileMarker("Nexus.CreateNFT"))
tokenID = Nexus.CreateNFT(this, symbol, Runtime.Chain.Name, target, rom, ram);
Runtime.Expect(tokenID > 0, "invalid tokenID");
using (var m = new ProfileMarker("Nexus.MintToken"))
Nexus.MintToken(this, token, from, target, Chain.Name, tokenID, rom, ram);
return(tokenID);
}