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Python: Comprehension stores

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Rasmus Lerchedahl Petersen
2020-08-03 08:53:22 +02:00
parent f21777c6ce
commit 9d09b4c811
3 changed files with 15 additions and 1 deletions
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6
python/ql/src/experimental/dataflow/internal/DataFlowPrivate.qll
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@@ -231,6 +231,12 @@ predicate storeStep(Node nodeFrom, Content c, Node nodeTo) {
// nodeFrom is `42`, cfg node
// nodeTo is the sequence, say `[..., 42, ...]`, cfg node
nodeTo.(CfgNode).getNode().(SequenceNode).getAnElement() = nodeFrom.(CfgNode).getNode()
or
// Comprehension
// `[x+1 for x in l]`
// nodeFrom is `x+1`
// nodeTo is `[x+1 for x in l]`
nodeTo.(CfgNode).getNode().getNode().(Comp).getElt() = nodeFrom.(CfgNode).getNode().getNode()
}
/**