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The standard QL libraries and queries that power and other Semmle Products
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calumgrant Merge pull request #1982 from hvitved/csharp/null-maybe-dynamic
C#: Remove false positives from `cs/dereferenced-value-may-be-null`
Latest commit b31cd8a Sep 20, 2019

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 or the QL for Eclipse plugin to try out your queries on any open-source project that's currently being analyzed.


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. You can also consult our style guides to learn how to format your QL for consistency and clarity, how to write query metadata, and how to write query help documentation for your query.


The QL queries in this repository are licensed under Apache License 2.0 by Semmle.

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