Documentation

Extract the total deposits and refunds from a list of TxCerts. This a kind of AdaPot relative to the Certs in a Transaction body It depends on the PParams (deposit ammounts for registering a staking key, a ppol, and registering a Drep) and on the CertState (what deposits were made in the past)

This is exactly the same as reify, except it names the existential varaible for better error messages

This is the first step to generating balanced TxBodies. It illustrates several techniques 1) Generate a tuple of related types. Previously we relied on generating one type and then passing the actual generated value as the input of the next generator. This is an alternative to that. But note we still rely partly on the old technique because we take CertsEnv and CertState values as input. 2) Carefully using dependsOn, to make explicit the order the code writer thinks the the variables should be solved in. This makes failures less mysterious. Because variable ordering failures are mysterious and hard to solve 3) The use of nested reify (here reifyX which just makes error messages better). This supports using complicated Haskell functions to extract one random value, from a previous solved variable using a pure function. Examples of this are getDepositRefund and adjustTxOutCoin 4) How complicated balancing constraints can be solved declaratively, rather than algorithmically i.e. toDelta_ (sumTxOut_ @era outputs) ==. inputS + with + refund - deposit - f