aiken-design-patterns v1.8.0

aiken_design_patterns/parameter_validation/advanced

Advanced parameter-application helpers for arbitrary Data parameters.

Unlike the base helpers, this reconstructs the final applied script from the Flat prefix immediately before the parameter payload, and serialises the parameter as Plutus Data on-chain.

The script instance must be parameterised off-chain with the canonical CBOR emitted by aiken/cbor.serialise. A semantically equivalent, non-canonical CBOR encoding produces different script bytes and therefore a different hash.

Functions 

apply_param(
  version: Int,
  flat_prefix_without_parameter_header: ByteArray,
  parameter: Data,
) -> ScriptHash

Apply a single Data parameter to a script Flat prefix and return the resulting script hash.

flat_prefix_without_parameter_header must contain the Flat bytes of the script up to, but not including, the Flat bytestring chunk-length byte for the parameter payload. The outer CBOR bytestring header must not be included. The script instance must use the canonical parameter CBOR produced by cbor.serialise.

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