diff options
Diffstat (limited to 'astroid/protocols.py')
| -rw-r--r-- | astroid/protocols.py | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/astroid/protocols.py b/astroid/protocols.py index f1d9284..66ca978 100644 --- a/astroid/protocols.py +++ b/astroid/protocols.py @@ -246,7 +246,7 @@ def _resolve_looppart(parts, asspath, context): break @decorators.raise_if_nothing_inferred -def for_assigned_stmts(self, node, context=None, asspath=None): +def for_assigned_stmts(self, node=None, context=None, asspath=None): if asspath is None: for lst in self.iter.infer(context): if isinstance(lst, (nodes.Tuple, nodes.List)): @@ -265,18 +265,25 @@ nodes.For.assigned_stmts = for_assigned_stmts nodes.Comprehension.assigned_stmts = for_assigned_stmts -def mulass_assigned_stmts(self, node, context=None, asspath=None): +def sequence_assigned_stmts(self, node=None, context=None, asspath=None): if asspath is None: asspath = [] - asspath.insert(0, self.elts.index(node)) - return self.parent.assigned_stmts(self, context, asspath) + try: + index = self.elts.index(node) + except ValueError: + util.reraise(exceptions.InferenceError( + 'Tried to retrieve a node {node!r} which does not exist', + node=self, assign_path=asspath, context=context)) + + asspath.insert(0, index) + return self.parent.assigned_stmts(node=self, context=context, asspath=asspath) -nodes.Tuple.assigned_stmts = mulass_assigned_stmts -nodes.List.assigned_stmts = mulass_assigned_stmts +nodes.Tuple.assigned_stmts = sequence_assigned_stmts +nodes.List.assigned_stmts = sequence_assigned_stmts -def assend_assigned_stmts(self, context=None): - return self.parent.assigned_stmts(self, context=context) +def assend_assigned_stmts(self, node=None, context=None, asspath=None): + return self.parent.assigned_stmts(node=self, context=context) nodes.AssignName.assigned_stmts = assend_assigned_stmts nodes.AssignAttr.assigned_stmts = assend_assigned_stmts @@ -329,7 +336,7 @@ def _arguments_infer_argname(self, name, context): yield util.Uninferable -def arguments_assigned_stmts(self, node, context, asspath=None): +def arguments_assigned_stmts(self, node=None, context=None, asspath=None): if context.callcontext: # reset call context/name callcontext = context.callcontext @@ -343,7 +350,7 @@ nodes.Arguments.assigned_stmts = arguments_assigned_stmts @decorators.raise_if_nothing_inferred -def assign_assigned_stmts(self, node, context=None, asspath=None): +def assign_assigned_stmts(self, node=None, context=None, asspath=None): if not asspath: yield self.value return @@ -388,7 +395,7 @@ def _resolve_asspart(parts, asspath, context): @decorators.raise_if_nothing_inferred -def excepthandler_assigned_stmts(self, node, context=None, asspath=None): +def excepthandler_assigned_stmts(self, node=None, context=None, asspath=None): for assigned in node_classes.unpack_infer(self.type): if isinstance(assigned, nodes.ClassDef): assigned = bases.Instance(assigned) @@ -449,7 +456,7 @@ def _infer_context_manager(self, mgr, context): @decorators.raise_if_nothing_inferred -def with_assigned_stmts(self, node, context=None, asspath=None): +def with_assigned_stmts(self, node=None, context=None, asspath=None): """Infer names and other nodes from a *with* statement. This enables only inference for name binding in a *with* statement. @@ -554,7 +561,7 @@ def starred_assigned_stmts(self, node=None, context=None, asspath=None): # be the list of values which the Starred node will represent # This is done in two steps, from left to right to remove # anything before the starred node and from right to left - # to remvoe anything after the starred node. + # to remove anything after the starred node. for index, node in enumerate(lhs.elts): if not isinstance(node, nodes.Starred): |