Misc Enhancements/Bugfixes

• openlane.state
  • DesignFormat
    • Now a dataclass encapsulating the information about the DesignFormat directly.
    • .factory is a factory for retrieval of DesignFormats by ID
      • DesignFormats may be registered to the factory using .register()
      • Registrations for previously included DesignFormats now moved to where appropriate.
        • Renamed POWERED_NETLIST_NO_PHYSICAL_CELLS to LOGICAL_POWERED_NETLIST
        • Renamed POWERED_NETLIST_SDF_FRIENDLY to SDF_FRIENDLY_POWERED_NETLIST
  • State
    • States initialized with keys that have values that are None now remove said keys.

API Breaks

• openlane.steps

  • TclStep now uses the IDs uppercased for CURRENT_ and SAVE_.

• openlane.state

  • State no longer includes all DesignFormats as guaranteed keys and .get must be used to avoide KeyErrors
  • DesignFormat is no longer an enumeration and is not iterable. However, to avoid massive codebase changes, you can still access DesignFormats registered to the factory using the dot notation (e.g. DesignFormat.NETLIST), using either their id or any of their alts.
  • Removed DesignFormatObject: the DesignFormat class itself is now a dataclass incorporating these fields, except name, which has been renamed to full_name. The enumeration's name has been added to alts, while .name is now an alias for .id.