Merge pull request #19850 from hvitved/rust/in-derive-macro

Rust: Take derive macros into account in `is{In,From}MacroExpansion`

Author: hvitved

rust/ql/lib/codeql/rust/elements/internal/AstNodeImpl.qll

@@ -70,9 +70,9 @@ module Impl {
      */
     pragma[nomagic]
     predicate isFromMacroExpansion() {
-      exists(MacroCall mc |
-        MacroCallImpl::isInMacroExpansion(mc, this) and
-        not this = mc.getATokenTreeNode()
+      exists(AstNode root |
+        MacroCallImpl::isInMacroExpansion(root, this) and
+        not this = root.(MacroCall).getATokenTreeNode()
       )
     }
 

rust/ql/lib/codeql/rust/elements/internal/MacroCallImpl.qll

@@ -14,10 +14,12 @@ module Impl {
   private import rust
 
   pragma[nomagic]
-  predicate isInMacroExpansion(MacroCall mc, AstNode n) {
-    n = mc.getMacroCallExpansion()
+  predicate isInMacroExpansion(AstNode root, AstNode n) {
+    n = root.(MacroCall).getMacroCallExpansion()
     or
-    isInMacroExpansion(mc, n.getParentNode())
+    n = root.(Adt).getDeriveMacroExpansion(_)
+    or
+    isInMacroExpansion(root, n.getParentNode())
   }
 
   // the following QLdoc is generated: if you need to edit it, do it in the schema file