Update ruby/ql/lib/codeql/ruby/printAst.qll

Co-authored-by: Tom Hvitved <hvitved@github.com>
intrigus-lgtm · Aug 3, 2022 · 35f7fdf · 35f7fdf
1 parent d8592a2
commit 35f7fdf
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/ruby/ql/lib/codeql/ruby/printAst.qll b/ruby/ql/lib/codeql/ruby/printAst.qll
@@ -36,6 +36,8 @@ private predicate shouldPrintAstEdge(AstNode parent, string edgeName, AstNode ch
   any(PrintAstConfiguration config).shouldPrintAstEdge(parent, edgeName, child)
 }
 
+private int nonSynthIndex() { result = min([-1, any(int i | exists(getSynthChild(_, i)))]) - 1 }
+
 newtype TPrintNode =
   TPrintRegularAstNode(AstNode n) { shouldPrintNode(n) } or
   TPrintRegExpNode(RE::RegExpTerm term) {
@@ -114,7 +116,7 @@ class PrintRegularAstNode extends PrintAstNode, TPrintRegularAstNode {
   }
 
   private int getSynthAstNodeIndex() {
-    not astNode.isSynthesized() and result = -10
+    not astNode.isSynthesized() and result = nonSynthIndex()
     or
     astNode = getSynthChild(astNode.getParent(), result)
   }