The 'flow' book

Flow Compiling

From the hierarchical definition of a flow program produced by the loading stage:

Connection Reducing

Build a flat table of connections.

For every connection that ends at a flow:

• Look through all other connections and for each one that starts where this flow starts:
  • Replace the connection's destination with this connections destination.
  • Delete this connection

When done there should be no connections ending at flows. Any connections left that starts at a flow, is unconnected and can be deleted.

Value and Function Tables

Build a table of values and functions.

Pruning Value and Function Tables

Drop the following combinations, with warnings:

• values that don't have connections from them.
• values that have only outputs and are not initialized.
• functions that don't have connections from their output.
• functions that don't have connections to all their inputs.