cpython/Tools/c-analyzer/c_analyzer/variables/find.py

76 lines
2.3 KiB
Python

from ..common import files
from ..common.info import UNKNOWN
from ..parser import (
find as p_find,
)
from ..symbols import (
info as s_info,
find as s_find,
)
from .info import Variable
# XXX need tests:
# * vars_from_source
def _remove_cached(cache, var):
if not cache:
return
try:
cached = cache[var.filename]
cached.remove(var)
except (KeyError, IndexError):
pass
def vars_from_binary(binfile, *,
known=None,
filenames=None,
handle_id=None,
check_filename=None,
handle_var=Variable.from_id,
_iter_vars=s_find.variables,
_get_symbol_resolver=s_find.get_resolver,
):
"""Yield a Variable for each found Symbol.
Details are filled in from the given "known" variables and types.
"""
cache = {}
resolve = _get_symbol_resolver(filenames, known,
handle_var=handle_var,
check_filename=check_filename,
perfilecache=cache,
)
for var, symbol in _iter_vars(binfile,
resolve=resolve,
handle_id=handle_id,
):
if var is None:
var = Variable(symbol.id, UNKNOWN, UNKNOWN)
yield var
_remove_cached(cache, var)
def vars_from_source(filenames, *,
preprocessed=None,
known=None,
handle_id=None,
handle_var=Variable.from_id,
iter_vars=p_find.variables,
):
"""Yield a Variable for each declaration in the raw source code.
Details are filled in from the given "known" variables and types.
"""
cache = {}
for varid, decl in iter_vars(filenames or (),
perfilecache=cache,
preprocessed=preprocessed,
known=known,
handle_id=handle_id,
):
var = handle_var(varid, decl)
yield var
_remove_cached(cache, var)