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Fix an issue with displaying attribute errors.

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This commit is contained in:
Dave Halter
2016-12-18 21:37:15 +01:00
parent 7fdcdbbd5c
commit 4e62e98539
3 changed files with 18 additions and 17 deletions
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28
jedi/evaluate/analysis.py
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@@ -77,15 +77,15 @@ class Warning(Error):
pass
def add(context, error_name, node, message=None, typ=Error, payload=None):
def add(node_context, error_name, node, message=None, typ=Error, payload=None):
exception = CODES[error_name][1]
if _check_for_exception_catch(context, node, exception, payload):
if _check_for_exception_catch(node_context, node, exception, payload):
return
module_path = node.get_root_node().path
instance = typ(error_name, module_path, node.start_pos, message)
debug.warning(str(instance), format=False)
context.evaluator.analysis.append(instance)
node_context.evaluator.analysis.append(instance)
def _check_for_setattr(instance):
@@ -107,29 +107,29 @@ def _check_for_setattr(instance):
for stmt in stmts)
def add_attribute_error(context, name):
message = ('AttributeError: %s has no attribute %s.' % (context, name))
def add_attribute_error(name_context, lookup_context, name):
message = ('AttributeError: %s has no attribute %s.' % (lookup_context, name))
from jedi.evaluate.instance import AbstractInstanceContext, CompiledInstanceName
# Check for __getattr__/__getattribute__ existance and issue a warning
# instead of an error, if that happens.
typ = Error
if isinstance(context, AbstractInstanceContext):
slot_names = context.get_function_slot_names('__getattr__') + \
context.get_function_slot_names('__getattribute__')
if isinstance(lookup_context, AbstractInstanceContext):
slot_names = lookup_context.get_function_slot_names('__getattr__') + \
lookup_context.get_function_slot_names('__getattribute__')
for n in slot_names:
if isinstance(name, CompiledInstanceName) and \
n.parent_context.obj == object:
typ = Warning
break
if _check_for_setattr(context):
if _check_for_setattr(lookup_context):
typ = Warning
payload = context, name
add(context, 'attribute-error', name, message, typ, payload)
payload = lookup_context, name
add(name_context, 'attribute-error', name, message, typ, payload)
def _check_for_exception_catch(context, jedi_name, exception, payload=None):
def _check_for_exception_catch(node_context, jedi_name, exception, payload=None):
"""
Checks if a jedi object (e.g. `Statement`) sits inside a try/catch and
doesn't count as an error (if equal to `exception`).
@@ -157,7 +157,7 @@ def _check_for_exception_catch(context, jedi_name, exception, payload=None):
if node is None:
return True # An exception block that catches everything.
else:
except_classes = context.eval_node(node)
except_classes = node_context.eval_node(node)
for cls in except_classes:
from jedi.evaluate import iterable
if isinstance(cls, iterable.AbstractSequence) and \
@@ -182,7 +182,7 @@ def _check_for_exception_catch(context, jedi_name, exception, payload=None):
arglist = trailer.children[1]
assert arglist.type == 'arglist'
from jedi.evaluate.param import TreeArguments
args = list(TreeArguments(context.evaluator, context, arglist).unpack())
args = list(TreeArguments(node_context.evaluator, node_context, arglist).unpack())
# Arguments should be very simple
assert len(args) == 2