Design.md

Design

TODO Document in progress

Type of switching pipeline nodes:

- Value-based

- Binary

- Case

- Single-expression, single-outcome

- Binary

- Case block

- Multi-expression

- Case block

- Generalized if-else

- Binary

- Value-based, single-expression

- Case

- Value-based, single-expression, multi-expression

- Generalized if-else

- Multi-expression

General switch and general if-else can be considered the same, and "cases" added which either provide a mix of value-based and expression-based match expressions.

Mapping function can be overlayed on any solution.

Binary switch must disallow any additional cases to be added.

Enum must disallow any additional cases to be added.

pipe registry PipelineRegistry pipe node (case block.pipe_reference) CaseBlockRegistryEntry(PipelineRegistryEntry) [from] [to] case block lookup table mapping function match value table apply function to produce value - CaseBlock match expression table apply function to produce value - CaseBlock

TODO Reference the https://iteration-utilities.readthedocs.io/en/latest library

TODO Function to insert and manage a dictionary of lists. { id -> [ data items ] }. Append to the list or set, or create if not exist.