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Use ContextualizedNode instead of Node in get_calling_nodes

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This improves working with these nodes by a lot.
This commit is contained in:
Dave Halter
2018-12-22 14:55:20 +01:00
parent ca784916bb
commit 1065768c77
4 changed files with 41 additions and 23 deletions
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8
jedi/evaluate/arguments.py
View File

@@ -9,7 +9,7 @@ from jedi.evaluate import analysis
from jedi.evaluate.lazy_context import LazyKnownContext, LazyKnownContexts, \
LazyTreeContext, get_merged_lazy_context
from jedi.evaluate.filters import ParamName
from jedi.evaluate.base_context import NO_CONTEXTS, ContextSet
from jedi.evaluate.base_context import NO_CONTEXTS, ContextSet, ContextualizedNode
from jedi.evaluate.context import iterable
from jedi.evaluate.param import get_executed_params_and_issues, ExecutedParam
@@ -239,7 +239,7 @@ class TreeArguments(AbstractArguments):
else:
yield None, LazyTreeContext(self.context, el)
# Reordering var_args is necessary, because star args sometimes appear
# Reordering arguments is necessary, because star args sometimes appear
# after named argument, but in the actual order it's prepended.
for named_arg in named_args:
yield named_arg
@@ -286,9 +286,9 @@ class TreeArguments(AbstractArguments):
break
if arguments.argument_node is not None:
return [arguments.argument_node]
return [ContextualizedNode(arguments.context, arguments.argument_node)]
if arguments.trailer is not None:
return [arguments.trailer]
return [ContextualizedNode(arguments.context, arguments.trailer)]
return []

6
jedi/evaluate/lazy_context.py
View File

@@ -36,14 +36,14 @@ class LazyUnknownContext(AbstractLazyContext):
class LazyTreeContext(AbstractLazyContext):
def __init__(self, context, node):
super(LazyTreeContext, self).__init__(node)
self._context = context
self.context = context
# We need to save the predefined names. It's an unfortunate side effect
# that needs to be tracked otherwise results will be wrong.
self._predefined_names = dict(context.predefined_names)
def infer(self):
with monkeypatch(self._context, 'predefined_names', self._predefined_names):
return self._context.eval_node(self.data)
with monkeypatch(self.context, 'predefined_names', self._predefined_names):
return self.context.eval_node(self.data)
def get_merged_lazy_context(lazy_contexts):

32
jedi/evaluate/param.py
View File

@@ -9,12 +9,12 @@ from jedi.evaluate import docstrings
from jedi.evaluate.context import iterable
def _add_argument_issue(parent_context, error_name, lazy_context, message):
def _add_argument_issue(error_name, lazy_context, message):
if isinstance(lazy_context, LazyTreeContext):
node = lazy_context.data
if node.parent.type == 'argument':
node = node.parent
return analysis.add(parent_context, error_name, node, message)
return analysis.add(lazy_context.context, error_name, node, message)
class ExecutedParam(object):
@@ -65,16 +65,15 @@ class ExecutedParam(object):
return '<%s: %s>' % (self.__class__.__name__, self.string_name)
def get_executed_params_and_issues(execution_context, var_args):
def get_executed_params_and_issues(execution_context, arguments):
def too_many_args(argument):
m = _error_argument_count(funcdef, len(unpacked_va))
# Just report an error for the first param that is not needed (like
# cPython).
if var_args.get_calling_nodes():
if arguments.get_calling_nodes():
# There might not be a valid calling node so check for that first.
issues.append(
_add_argument_issue(
default_param_context,
'type-error-too-many-arguments',
argument,
message=m
@@ -94,7 +93,7 @@ def get_executed_params_and_issues(execution_context, var_args):
for param in funcdef.get_params():
param_dict[param.name.value] = param
unpacked_va = list(var_args.unpack(funcdef))
unpacked_va = list(arguments.unpack(funcdef))
var_arg_iterator = PushBackIterator(iter(unpacked_va))
non_matching_keys = defaultdict(lambda: [])
@@ -119,10 +118,11 @@ def get_executed_params_and_issues(execution_context, var_args):
had_multiple_value_error = True
m = ("TypeError: %s() got multiple values for keyword argument '%s'."
% (funcdef.name, key))
for node in var_args.get_calling_nodes():
for contextualized_node in arguments.get_calling_nodes():
issues.append(
analysis.add(default_param_context, 'type-error-multiple-values',
node, message=m)
analysis.add(contextualized_node.context,
'type-error-multiple-values',
contextualized_node.node, message=m)
)
else:
keys_used[key] = ExecutedParam(execution_context, key_param, argument)
@@ -161,13 +161,13 @@ def get_executed_params_and_issues(execution_context, var_args):
if param.default is None:
result_arg = LazyUnknownContext()
if not keys_only:
for node in var_args.get_calling_nodes():
for contextualized_node in arguments.get_calling_nodes():
m = _error_argument_count(funcdef, len(unpacked_va))
issues.append(
analysis.add(
default_param_context,
contextualized_node.context,
'type-error-too-few-arguments',
node,
contextualized_node.node,
message=m,
)
)
@@ -194,11 +194,12 @@ def get_executed_params_and_issues(execution_context, var_args):
if not (non_matching_keys or had_multiple_value_error or
param.star_count or param.default):
# add a warning only if there's not another one.
for node in var_args.get_calling_nodes():
for contextualized_node in arguments.get_calling_nodes():
m = _error_argument_count(funcdef, len(unpacked_va))
issues.append(
analysis.add(default_param_context, 'type-error-too-few-arguments',
node, message=m)
analysis.add(contextualized_node.context,
'type-error-too-few-arguments',
contextualized_node.node, message=m)
)
for key, lazy_context in non_matching_keys.items():
@@ -206,7 +207,6 @@ def get_executed_params_and_issues(execution_context, var_args):
% (funcdef.name, key)
issues.append(
_add_argument_issue(
default_param_context,
'type-error-keyword-argument',
lazy_context,
message=m

18
test/static_analysis/try_except.py
View File

@@ -87,3 +87,21 @@ else:
str.upper
#! 4 attribute-error
str.undefined
# -----------------
# arguments
# -----------------
def i_see(r):
return r
def lala():
# This weird structure checks if the error is actually resolved in the
# right place.
a = TypeError
try:
i_see()
except a:
pass
#! 5 type-error-too-few-arguments
i_see()