reintroduce DataFlowType - otherwise nothing in the old DataFlow library would compile

erik-krogh · erik-krogh · commit 1f8f111ef6a6 · 2023-06-14T08:31:57.000+02:00
diff --git a/python/ql/lib/semmle/python/dataflow/old/TaintTracking.qll b/python/ql/lib/semmle/python/dataflow/old/TaintTracking.qll
@@ -664,6 +664,14 @@ module DataFlow {
   }
 }
 
+deprecated private class DataFlowType extends TaintKind {
+  // this only exists to avoid an empty recursion error in the type checker
+  DataFlowType() {
+    this = "Data flow" and
+    1 = 2
+  }
+}
+
 pragma[noinline]
 private predicate dict_construct(ControlFlowNode itemnode, ControlFlowNode dictnode) {
   dictnode.(DictNode).getAValue() = itemnode

Original file line number	Diff line number	Diff line change
`@@ -664,6 +664,14 @@ module DataFlow {`
`664`	`664`	`}`
`665`	`665`	`}`
`666`	`666`
	`667`	`+deprecated private class DataFlowType extends TaintKind {`
	`668`	`+ // this only exists to avoid an empty recursion error in the type checker`
	`669`	`+ DataFlowType() {`
	`670`	`+ this = "Data flow" and`
	`671`	`+ 1 = 2`
	`672`	`+ }`
	`673`	`+}`
	`674`	`+`
`667`	`675`	`pragma[noinline]`
`668`	`676`	`private predicate dict_construct(ControlFlowNode itemnode, ControlFlowNode dictnode) {`
`669`	`677`	`dictnode.(DictNode).getAValue() = itemnode`