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f07a7bf8cf
Will need subsequent PRs fixing up test failures (due to deprecated methods moving around), but other than that everything should be straight-forward.
26 lines
730 B
Plaintext
26 lines
730 B
Plaintext
/**
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* @name Non-iterable used in for loop
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* @description Using a non-iterable as the object in a 'for' loop causes a TypeError.
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* @kind problem
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* @tags reliability
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* correctness
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* types
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* @problem.severity error
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* @sub-severity low
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* @precision high
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* @id py/non-iterable-in-for-loop
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*/
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import python
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from For loop, ControlFlowNode iter, Value v, ClassValue t, ControlFlowNode origin
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where
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loop.getIter().getAFlowNode() = iter and
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iter.pointsTo(_, v, origin) and
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v.getClass() = t and
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not t.isIterable() and
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not t.failedInference(_) and
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not v = Value::named("None") and
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not t.isDescriptorType()
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select loop, "$@ of class '$@' may be used in for-loop.", origin, "Non-iterable", t, t.getName()
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