FLAGS:
-c, --compile Compiles the program dumps to stdout the hash and hex-encoded MelVM bytecode
-h, --help Prints help information
-i, --interactive Starts the interactive REPL
-V, --version Prints version information
OPTIONS:
-s, --spend-ctx An optional spend context YAML file
ARGS:
The Melodeon program to run
```
Spend context
The spend context referred to above is a YAML file that lets you ad-hoc specify certain facts about the environment the covenant is to be tested in, without spinning up a whole actual blockchain.
The format of the YAML file is as follows:
```yaml
(OPTIONAL) Kind of the spending trasnsaction. Defaults to 0 (Normal)
spender_txkind: 0x00
(OPTIONAL) Inputs of the spending transaction, other than the coin containing this covenant. Format is a map between integer indices and CoinID structs
spenderotherinputs:
0:
txhash: ...
index: ...
(MANDATORY) What input index is the covenant-locked coin being spent at? e.g. 0 means that the covenant-locked coin is the first input to the spending transaction
spender_index: 0
(OPTIONAL) Data field of the spending transaction, in hexadecimal
spender_data: deadbeef
(OPTIONAL) Outputs of the spending trransaction. A map between integer indices and CoinData structs
(OPTIONAL) Value of the covenant-locked coin being spent, in microunits. Defaults to 0
parent_value: 123
(OPTIONAL) Denomination of the coin being spent. Defaults to MEL
parent_denom: MEL
(OPTIONAL) Additional data of the coin being spent, in hexadecimal. Defaults to the empty string.
additional_data: "cafebabed00d"
Private keys (in hex) that the signed transaction is signed by. A mapping between the index of the signature and the private key. For example the map {0: K} indicates that the first signature is signed by the private key K.