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simple generator static analysis subscript check

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This commit is contained in:
Dave Halter
2014-05-12 16:03:41 +02:00
parent b6ec589997
commit 64af9524b7
3 changed files with 12 additions and 1 deletions
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1
jedi/evaluate/analysis.py
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@@ -8,6 +8,7 @@ from jedi import debug
CODES = { CODES = {
'attribute-error': (1, 'Potential AttributeError.'), 'attribute-error': (1, 'Potential AttributeError.'),
'import-error': (2, 'Potential ImportError.'), 'import-error': (2, 'Potential ImportError.'),
'type-error-generator': (3, "TypeError: 'generator' object is not subscriptable."),
} }

4
jedi/evaluate/iterable.py
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@@ -32,6 +32,7 @@ from jedi.evaluate import helpers
from jedi.evaluate import precedence from jedi.evaluate import precedence
from jedi.evaluate.cache import CachedMetaClass, memoize_default, NO_DEFAULT from jedi.evaluate.cache import CachedMetaClass, memoize_default, NO_DEFAULT
from jedi.cache import underscore_memoization from jedi.cache import underscore_memoization
from jedi.evaluate import analysis
class Generator(use_metaclass(CachedMetaClass, pr.Base)): class Generator(use_metaclass(CachedMetaClass, pr.Base)):
@@ -61,7 +62,8 @@ class Generator(use_metaclass(CachedMetaClass, pr.Base)):
return self._evaluator.execute(self.func, self.var_args, True) return self._evaluator.execute(self.func, self.var_args, True)
def get_index_types(self, index_array): def get_index_types(self, index_array):
debug.warning('Tried to get array access on a generator: %s', self) #debug.warning('Tried to get array access on a generator: %s', self)
analysis.add(self._evaluator, 'type-error-generator', index_array)
return [] return []
def __getattr__(self, name): def __getattr__(self, name):

8
test/static_analysis/generators.py Normal file
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@@ -0,0 +1,8 @@
def generator():
yield 1
#! type-error-generator
generator()[0]
list(generator())[0]