842aafc888
This query uses data flow for nullness analysis, which is always going to be a large overapproximation. The overapproximation became too big for one of the test cases after the recent change to make data flow go across assignment by reference. To make this query more conservative, it will now only report that the `pDacl` argument can be null if there isn't also evidence that it can be non-null.
Semmle QL
This open source repository contains the standard QL libraries and queries that power LGTM, and the other products that Semmle makes available to its customers worldwide.
How do I learn QL and run queries?
There is extensive documentation on getting started with writing QL. You can use the interactive query console on LGTM.com or the QL for Eclipse plugin to try out your queries on any open-source project that's currently being analyzed.
Contributing
We welcome contributions to our standard library and standard checks. Do you have an idea for a new check, or how to improve an existing query? Then please go ahead and open a pull request! Before you do, though, please take the time to read our contributing guidelines and QL style guide.
License
The QL queries in this repository are licensed under Apache License 2.0 by Semmle.