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added a scope generator for instances, which is necessary, because instance variables have priority over class vars

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This commit is contained in:
David Halter
2012-09-04 15:25:08 +02:00
parent 3cc5c60f02
commit db7c2fc6e7
2 changed files with 29 additions and 10 deletions
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33
evaluate.py
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@@ -243,6 +243,19 @@ class Instance(use_metaclass(CachedMetaClass, Executable)):
names.append(InstanceElement(self, var, True))
return names
def scope_generator(self):
"""
An Instance has two scopes: The scope with self names and the class
scope. Instance variables have priority over the class scope.
"""
yield self, self.get_self_properties()
names = []
class_names = self.base.get_defined_names()
for var in class_names:
names.append(InstanceElement(self, var, True))
yield self, names
def get_index_types(self, index=None):
args = helpers.generate_param_array([] if index is None else [index])
try:
@@ -890,8 +903,12 @@ def get_names_for_scope(scope, position=None, star_search=True,
and non_flow.isinstance(Function)
):
try:
yield scope, get_defined_names_for_position(scope, position,
in_func_scope)
if isinstance(scope, Instance):
for g in scope.scope_generator():
yield g
else:
yield scope, get_defined_names_for_position(scope,
position, in_func_scope)
except StopIteration:
raise MultiLevelStopIteration('StopIteration raised somewhere')
if scope.isinstance(parsing.ForFlow) and scope.is_list_comp:
@@ -1059,9 +1076,8 @@ def get_scopes_for_name(scope, name_str, position=None, search_global=False):
no_break_scope = True
# TODO this makes self variables non-breakable. wanted?
#r = [n for n in par.get_set_vars()
# if len(n) > 1 and str(n.names[-1] == name)]
if isinstance(name, InstanceElement):# and r:
if isinstance(name, InstanceElement) \
and not name.is_class_var:
no_break_scope = True
result.append(par)
@@ -1115,8 +1131,11 @@ def get_scopes_for_name(scope, name_str, position=None, search_global=False):
if search_global:
scope_generator = get_names_for_scope(scope, position=position)
else:
names = get_defined_names_for_position(scope, position)
scope_generator = iter([(scope, names)])
if isinstance(scope, Instance):
scope_generator = scope.scope_generator()
else:
names = get_defined_names_for_position(scope, position)
scope_generator = iter([(scope, names)])
return descriptor_check(remove_statements(filter_name(scope_generator)))