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fix cfg and dataflow for logical compound assignments

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This commit is contained in:
Erik Krogh Kristensen
2021-08-10 12:17:59 +02:00
parent d658ef1dcd
commit 01a202fa10
4 changed files with 33 additions and 6 deletions
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10
javascript/ql/src/semmle/javascript/dataflow/DataFlow.qll
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@@ -1495,6 +1495,16 @@ module DataFlow {
predExpr = succExpr.(NonNullAssertion).getExpression()
or
predExpr = succExpr.(ExpressionWithTypeArguments).getExpression()
or
(
succExpr instanceof AssignLogOrExpr or
succExpr instanceof AssignLogAndExpr or
succExpr instanceof AssignNullishCoalescingExpr
) and
(
predExpr = succExpr.(CompoundAssignExpr).getLhs() or
predExpr = succExpr.(CompoundAssignExpr).getRhs()
)
)
or
// flow from 'this' parameter into 'this' expressions