From 86ae8012beaa51b8016109215be8832bbd863bc7 Mon Sep 17 00:00:00 2001
From: Asger F <asgerf@github.com>
Date: Thu, 27 Mar 2025 11:31:36 +0100
Subject: [PATCH] Expand downgrade script

---
 .../jsdoc_type_exprs.ql                       | 37 +++++++++++++++++++
 .../upgrade.properties                        |  2 +
 2 files changed, 39 insertions(+)
 create mode 100644 javascript/downgrades/ccefb5e2d49318eea4aeafd4c6ae2af9f94ac72a/jsdoc_type_exprs.ql

diff --git a/javascript/downgrades/ccefb5e2d49318eea4aeafd4c6ae2af9f94ac72a/jsdoc_type_exprs.ql b/javascript/downgrades/ccefb5e2d49318eea4aeafd4c6ae2af9f94ac72a/jsdoc_type_exprs.ql
new file mode 100644
index 00000000000..4f12eb443f9
--- /dev/null
+++ b/javascript/downgrades/ccefb5e2d49318eea4aeafd4c6ae2af9f94ac72a/jsdoc_type_exprs.ql
@@ -0,0 +1,37 @@
+// Removes all nodes nested inside a qualified type access,
+// and changes qualified type access nodes to "named type" nodes.
+//
+/*
+ * jsdoc_type_exprs (unique int id: @jsdoc_type_expr,
+ *                  int kind: int ref,
+ *                  int parent: @jsdoc_type_expr_parent ref,
+ *                  int idx: int ref,
+ *                  varchar(900) tostring: string ref);
+ */
+
+class JSDocTypeExprParent extends @jsdoc_type_expr_parent {
+  string toString() { none() }
+}
+
+class JSDocTypeExpr extends @jsdoc_type_expr {
+  string toString() { none() }
+
+  JSDocTypeExpr getChild(int n) { jsdoc_type_exprs(result, _, this, n, _) }
+
+  int getNewKind() { jsdoc_type_exprs(this, result, _, _, _) }
+
+  predicate shouldRemove() { this = any(JSDocQualifiedTypeAccess a).getChild(_) }
+}
+
+class JSDocQualifiedTypeAccess extends @jsdoc_qualified_type_expr, JSDocTypeExpr {
+  override int getNewKind() {
+    result = 5
+    /* 5 = @jsdoc_named_type_expr */
+  }
+}
+
+from JSDocTypeExpr node, JSDocTypeExprParent parent, int idx, string tostring
+where
+  jsdoc_type_exprs(node, _, parent, idx, tostring) and
+  not node.shouldRemove()
+select node, node.getNewKind(), parent, idx, tostring
diff --git a/javascript/downgrades/ccefb5e2d49318eea4aeafd4c6ae2af9f94ac72a/upgrade.properties b/javascript/downgrades/ccefb5e2d49318eea4aeafd4c6ae2af9f94ac72a/upgrade.properties
index 9812f386f8c..d67984c6ef9 100644
--- a/javascript/downgrades/ccefb5e2d49318eea4aeafd4c6ae2af9f94ac72a/upgrade.properties
+++ b/javascript/downgrades/ccefb5e2d49318eea4aeafd4c6ae2af9f94ac72a/upgrade.properties
@@ -1,2 +1,4 @@
 description: split up qualified names in jsdoc type exprs
 compatibility: backwards
+
+jsdoc_type_exprs.rel: run jsdoc_type_exprs.ql