Relented on the strict import of direct objects/classes for the typing
module only. Typing module components can be directly imported because
it makes the code really painful to read and write otherwise.
This is still in-line with the python style guide adopted from Google at
http://google.github.io/styleguide/pyguide.html section 2.2.
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).
Refactored the location of the progress_callback so that the UI can
specify it and ensure it is used by the automagics process as well as
the plugins themselves.
The progress_callback function has also had an optional description parameter
added, so that it can differentiated in case two scans happen
simultaneously.
This allows NativeSymbolTables to be appended to symbol_spaces and
uses this to let automagic modules (which have no existing symbol table
to rely on) to load natives for reading format data.
Mike Auty