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Data flow: Mention expectsContent in dataflow.md

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Tom Hvitved
2022-04-22 12:19:38 +02:00
parent da72ba46d4
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docs/ql-libraries/dataflow/dataflow.md
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@@ -509,6 +509,12 @@ use-use steps. If local flow is implemented using def-use steps, then
Note that `clearsContent(n, cs)` is interpreted using `cs.getAReadContent()`. Note that `clearsContent(n, cs)` is interpreted using `cs.getAReadContent()`.
Dually, there exists a predicate
```ql
predicate expectsContent(Node n, ContentSet c);
```
which acts as a barrier when data is _not_ stored inside one of `c.getAReadContent()`.
## Type pruning ## Type pruning
The library supports pruning paths when a sequence of value-preserving steps The library supports pruning paths when a sequence of value-preserving steps