wip

Author: nicolasstucki

compiler/src/dotty/tools/dotc/typer/Inliner.scala

@@ -466,7 +466,13 @@ class Inliner(call: tpd.Tree, rhsToInline: tpd.Tree)(implicit ctx: Context) {
     trace(i"inlining $call", inlining, show = true) {
 
       // The normalized bindings collected in `bindingsBuf`
-      bindingsBuf.transform(reducer.normalizeBinding(_)(inlineCtx))
+      bindingsBuf.transform { binding =>
+        val transformedBinding = reducer.normalizeBinding(binding)(inlineCtx)
+        // Set trees to symbols allow macros to see the definition tree.
+        // This is used by `underlyingArgument`.
+        transformedBinding.symbol.defTree = transformedBinding
+        transformedBinding
+      }
 
       // Evaluate the top level ~ if it is a macro
       val expansion0 =