Add Actix framework modeling and import to Frameworks.qll

Author: coadaflorin

rust/ql/lib/codeql/rust/Frameworks.qll

@@ -2,6 +2,7 @@
  * This file imports all models of frameworks and libraries.
  */
 
+private import codeql.rust.frameworks.Actix
 private import codeql.rust.frameworks.rustcrypto.RustCrypto
 private import codeql.rust.frameworks.Poem
 private import codeql.rust.frameworks.Sqlx

rust/ql/lib/codeql/rust/frameworks/Actix.qll

@@ -0,0 +1,20 @@
+/**
+ * Provides modeling for the `Actix` library.
+ */
+
+ private import rust
+ private import codeql.rust.Concepts
+ private import codeql.rust.dataflow.DataFlow
+ 
+ /**
+  * Parameters of a handler function
+  */
+ private class ActixHandlerParam extends RemoteSource::Range {
+   ActixHandlerParam() {
+     exists(TupleStructPat param |
+       param.getResolvedPath() = ["crate::types::query::Query"]
+     |
+       this.asPat().getPat() = param.getAField()
+     )
+   }
+ }