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e4c431ecf5
This is partly a cleanup of the code. It also is preparation for getting the variables from the source (cross-platform) rather than from the symbols. The change only touches the tool (and its tests).
75 lines
2.3 KiB
Python
75 lines
2.3 KiB
Python
from ..common import files
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from ..common.info import UNKNOWN
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from ..parser import (
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find as p_find,
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)
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from ..symbols import (
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info as s_info,
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find as s_find,
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)
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from .info import Variable
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# XXX need tests:
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# * vars_from_source
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def _remove_cached(cache, var):
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if not cache:
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return
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try:
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cached = cache[var.filename]
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cached.remove(var)
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except (KeyError, IndexError):
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pass
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def vars_from_binary(binfile, *,
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known=None,
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filenames=None,
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handle_id=None,
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check_filename=None,
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handle_var=Variable.from_id,
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_iter_vars=s_find.variables,
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_get_symbol_resolver=s_find.get_resolver,
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):
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"""Yield a Variable for each found Symbol.
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Details are filled in from the given "known" variables and types.
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"""
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cache = {}
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resolve = _get_symbol_resolver(filenames, known,
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handle_var=handle_var,
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check_filename=check_filename,
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perfilecache=cache,
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)
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for var, symbol in _iter_vars(binfile,
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resolve=resolve,
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handle_id=handle_id,
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):
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if var is None:
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var = Variable(symbol.id, UNKNOWN, UNKNOWN)
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yield var
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_remove_cached(cache, var)
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def vars_from_source(filenames, *,
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preprocessed=None,
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known=None,
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handle_id=None,
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handle_var=Variable.from_id,
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iter_vars=p_find.variables,
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):
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"""Yield a Variable for each declaration in the raw source code.
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Details are filled in from the given "known" variables and types.
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"""
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cache = {}
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for varid, decl in iter_vars(filenames or (),
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perfilecache=cache,
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preprocessed=preprocessed,
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known=known,
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handle_id=handle_id,
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):
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var = handle_var(varid, decl)
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yield var
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_remove_cached(cache, var)
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