Rust: change dummy macro call expansion

Author: redsun82

rust/extractor/src/translate/base.rs

@@ -910,9 +910,9 @@ impl<'a> Translator<'a> {
                     path: None,
                     token_tree: None,
                 });
-                generated::MacroCall::emit_macro_call_expansion(
-                    label,
-                    expanded.into(),
+                generated::Item::emit_attribute_macro_expansion(
+                    label.into(),
+                    expanded,
                     &mut self.trap.writer,
                 );
                 self.emit_location(label, node);

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

@@ -32,7 +32,9 @@ module Impl {
    * ```
    */
   class MacroCall extends Generated::MacroCall {
-    override string toStringImpl() { result = this.getPath().toAbbreviatedString() + "!..." }
+    override string toStringImpl() {
+      if this.hasPath() then result = this.getPath().toAbbreviatedString() + "!..." else result = ""
+    }
 
     /** Gets an AST node whose location is inside the token tree belonging to this macro call. */
     pragma[nomagic]

rust/ql/test/extractor-tests/macro-in-library/PrintAst.expected

@@ -5,19 +5,20 @@ lib.rs:
 #    1|     getVisibility(): [Visibility] Visibility
 macro_in_library.rs:
 #    1| [SourceFile] SourceFile
+#    1|   getItem(0): [MacroCall] 
+#    2|     getAttributeMacroExpansion(): [MacroItems] MacroItems
+#    2|       getItem(0): [Function] fn foo
+#    2|         getParamList(): [ParamList] ParamList
+#    2|         getName(): [Name] foo
+#    2|         getVisibility(): [Visibility] Visibility
+#    2|       getItem(1): [Function] fn foo_new
+#    2|         getParamList(): [ParamList] ParamList
+#    2|         getName(): [Name] foo_new
+#    2|         getVisibility(): [Visibility] Visibility
 #    4|   getItem(1): [Function] fn bar
 #    4|     getParamList(): [ParamList] ParamList
 #    4|     getName(): [Name] bar
 #    4|     getVisibility(): [Visibility] Visibility
-#    2| [MacroItems] MacroItems
-#    2|   getItem(0): [Function] fn foo
-#    2|     getParamList(): [ParamList] ParamList
-#    2|     getName(): [Name] foo
-#    2|     getVisibility(): [Visibility] Visibility
-#    2|   getItem(1): [Function] fn foo_new
-#    2|     getParamList(): [ParamList] ParamList
-#    2|     getName(): [Name] foo_new
-#    2|     getVisibility(): [Visibility] Visibility
 proc_macro.rs:
 #    1| [SourceFile] SourceFile
 #    1|   getItem(0): [Use] use ...::TokenStream