diff --git a/java/ql/src/Security/CWE/CWE-190/ArithmeticTainted.ql b/java/ql/src/Security/CWE/CWE-190/ArithmeticTainted.ql
index 99d9879d19e..c4294e92ef0 100644
--- a/java/ql/src/Security/CWE/CWE-190/ArithmeticTainted.ql
+++ b/java/ql/src/Security/CWE/CWE-190/ArithmeticTainted.ql
@@ -37,7 +37,8 @@ module RemoteUserInputOverflow = TaintTracking::Make<RemoteUserInputOverflowConf
 module RemoteUserInputUnderflow = TaintTracking::Make<RemoteUserInputUnderflowConfig>;
 
 module Flow =
-  DataFlow::MergePathGraph<RemoteUserInputOverflow::PathNode, RemoteUserInputUnderflow::PathNode, RemoteUserInputOverflow::PathGraph, RemoteUserInputUnderflow::PathGraph>;
+  DataFlow::MergePathGraph<RemoteUserInputOverflow::PathNode, RemoteUserInputUnderflow::PathNode,
+    RemoteUserInputOverflow::PathGraph, RemoteUserInputUnderflow::PathGraph>;
 
 import Flow::PathGraph
 
diff --git a/java/ql/src/Security/CWE/CWE-200/TempDirLocalInformationDisclosure.ql b/java/ql/src/Security/CWE/CWE-200/TempDirLocalInformationDisclosure.ql
index 76998b40b50..6d99eba59c2 100644
--- a/java/ql/src/Security/CWE/CWE-200/TempDirLocalInformationDisclosure.ql
+++ b/java/ql/src/Security/CWE/CWE-200/TempDirLocalInformationDisclosure.ql
@@ -261,7 +261,9 @@ module InsecureMethodPathGraph implements DataFlow::PathGraphSig<MethodAccessIns
 }
 
 module Flow =
-  DataFlow::MergePathGraph<TempDirSystemGetPropertyToCreate::PathNode, MethodAccessInsecureFileCreation, TempDirSystemGetPropertyToCreate::PathGraph, InsecureMethodPathGraph>;
+  DataFlow::MergePathGraph<TempDirSystemGetPropertyToCreate::PathNode,
+    MethodAccessInsecureFileCreation, TempDirSystemGetPropertyToCreate::PathGraph,
+    InsecureMethodPathGraph>;
 
 import Flow::PathGraph
 
diff --git a/swift/ql/src/diagnostics/SuccessfullyExtractedFiles.ql b/swift/ql/src/diagnostics/SuccessfullyExtractedFiles.ql
new file mode 100644
index 00000000000..e65734a1d88
--- /dev/null
+++ b/swift/ql/src/diagnostics/SuccessfullyExtractedFiles.ql
@@ -0,0 +1,15 @@
+/**
+ * @name Successfully extracted files
+ * @description Lists all files in the source code directory that were extracted without encountering a problem in the file.
+ * @kind diagnostic
+ * @id swift/diagnostics/successfully-extracted-files
+ * @tags successfully-extracted-files
+ */
+
+import swift
+
+from File f
+where
+  not exists(CompilerError e | e.getFile() = f) and
+  f.getBaseName().regexpMatch(".*\\.swift\\z")
+select f, "File successfully extracted."
diff --git a/swift/ql/test/query-tests/Diagnostics/SuccessfullyExtractedFiles.expected b/swift/ql/test/query-tests/Diagnostics/SuccessfullyExtractedFiles.expected
new file mode 100644
index 00000000000..6f7928d5adb
--- /dev/null
+++ b/swift/ql/test/query-tests/Diagnostics/SuccessfullyExtractedFiles.expected
@@ -0,0 +1 @@
+| main.swift:0:0:0:0 | main.swift | File successfully extracted. |
diff --git a/swift/ql/test/query-tests/Diagnostics/SuccessfullyExtractedFiles.qlref b/swift/ql/test/query-tests/Diagnostics/SuccessfullyExtractedFiles.qlref
new file mode 100644
index 00000000000..5cdfe870715
--- /dev/null
+++ b/swift/ql/test/query-tests/Diagnostics/SuccessfullyExtractedFiles.qlref
@@ -0,0 +1 @@
+diagnostics/SuccessfullyExtractedFiles.ql
diff --git a/swift/ql/test/query-tests/Diagnostics/error.swift b/swift/ql/test/query-tests/Diagnostics/error.swift
new file mode 100644
index 00000000000..3f153f68bc3
--- /dev/null
+++ b/swift/ql/test/query-tests/Diagnostics/error.swift
@@ -0,0 +1,2 @@
+//codeql-extractor-expected-status: 1
+#error("Uh oh")
\ No newline at end of file
diff --git a/swift/ql/test/query-tests/Diagnostics/main.swift b/swift/ql/test/query-tests/Diagnostics/main.swift
new file mode 100644
index 00000000000..e69de29bb2d