Layers now accept metadata dictionaries (and chain/stack them on top of
those from lower layers). Metadata can only be set at construction
time, and the metadata dictionary is readonly. The hope is this will
make enumerating metadata keys across the codebase simpler.
The current metadata items that layers hold is:
architecture (Unknown | Intel32 | Intel64)
os (Unknown | Windows | Linux)
pae (bool)
page_map_offset (int)
This patchset may develop further to help enumerate all of these
(through a registration/reporting system).
Had second thoughts and deletion should only remove data, not sub
hierarchies. If the entire hierarchy needs clearing out, it'll need to
be done manually, or by splicing in an empty HierarchicalDict.
These are required by the Automagic interface, and so to prevent
importing from outside the interfaces namespace, these two classes
were moved into interfaces.
They weren't consistent and they show just remind me how slowly
I've been getting vol 3 written! 5:S
There's git commits to track all of that stuff if we need it.
This change is quite signficant, and requires that TranslationLayers
get all additional parameters that they need through their requirements.
These are now automatically enumerated and populated on object
construction based on the requirements, so should not require lots of
repetitive filling out of fields.
It does come with the downside that TranslationLayers can only be
contructed with a context (and appropiate config), but TLs in particular
always require a context (to contain the base layer) and blank configs
can be constructed relatively easily (convenience functions can be added
if necessary).
This allows configuration trees to be built up, and their configs
spliced into an existing config (as if it were being loaded from a
file).
Not all ConstructableRequirements use this method, since SymbolTables
(for example) do not have access to the context or config_path in order
to get to any parameters stored in the context's config. They therefore
are still passed their requirement values as __init__ parameters
instead.
Mike Auty