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Python: Implement modifying syntax

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This commit is contained in:
Rasmus Lerchedahl Petersen
2021-08-26 14:29:18 +02:00
parent 097c23e437
commit 49ae549e89
2 changed files with 16 additions and 8 deletions
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8
python/ql/src/semmle/python/functions/ModificationOfParameterWithDefaultCustomizations.qll
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@@ -97,8 +97,16 @@ module ModificationOfParameterWithDefault {
*/
class Mutation extends Sink {
Mutation() {
// assignment to a subscript (includes slices)
exists(DefinitionNode d | d.(SubscriptNode).getObject() = this.asCfgNode())
or
// deletion of a subscript
exists(DeletionNode d | d.getTarget().(SubscriptNode).getObject() = this.asCfgNode())
or
// augmented assignment to the value
exists(AugAssign a | a.getTarget().getAFlowNode() = this.asCfgNode())
or
// modifying function call
exists(DataFlow::CallCfgNode c, DataFlow::AttrRead a | c.getFunction() = a |
a.getObject() = this and
a.getAttributeName() in [list_modifying_method(), dict_modifying_method()]