From 050f54bbfc8492648bd0c9c61ed6c14daeb32551 Mon Sep 17 00:00:00 2001
From: Nicolas Stucki <nicolas.stucki@gmail.com>
Date: Tue, 27 Jun 2023 13:46:50 +0200
Subject: [PATCH] Add regression test for #18059

Closes #18059

Probably fixed by #17342
---
 tests/pos-macros/i18059/Macro_1.scala | 29 +++++++++++++++++++++++++++
 tests/pos-macros/i18059/Test_2.scala  |  8 ++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 tests/pos-macros/i18059/Macro_1.scala
 create mode 100644 tests/pos-macros/i18059/Test_2.scala

diff --git a/tests/pos-macros/i18059/Macro_1.scala b/tests/pos-macros/i18059/Macro_1.scala
new file mode 100644
index 000000000000..4c3f89281883
--- /dev/null
+++ b/tests/pos-macros/i18059/Macro_1.scala
@@ -0,0 +1,29 @@
+import scala.annotation.StaticAnnotation
+
+class SqlName(val sqlName: String) extends StaticAnnotation
+
+import scala.compiletime.*
+import scala.quoted.*
+
+inline def sqlFieldNamesFor[T]: Vector[(String, String)] = ${
+  sqlFieldNamesForImpl[T]
+}
+
+private def sqlFieldNamesForImpl[T: Type](using
+    Quotes // must be named!! like `q: Quotes`
+): Expr[Vector[(String, String)]] =
+  import quotes.reflect.*
+  val annot = TypeRepr.of[SqlName].typeSymbol
+  val tuples: Seq[Expr[(String, String)]] = TypeRepr
+    .of[T]
+    .typeSymbol
+    .primaryConstructor
+    .paramSymss
+    .head
+    .collect:
+      case sym if sym.hasAnnotation(annot) =>
+        val fieldNameExpr = Expr(sym.name.asInstanceOf[String])
+        val annotExpr = sym.getAnnotation(annot).get.asExprOf[SqlName]
+        '{ ($fieldNameExpr, $annotExpr.sqlName) }
+  val seq: Expr[Seq[(String, String)]] = Expr.ofSeq(tuples)
+  '{ $seq.toVector }
diff --git a/tests/pos-macros/i18059/Test_2.scala b/tests/pos-macros/i18059/Test_2.scala
new file mode 100644
index 000000000000..223cf626be87
--- /dev/null
+++ b/tests/pos-macros/i18059/Test_2.scala
@@ -0,0 +1,8 @@
+case class AppUser(
+    id: Long,
+    firstName: Option[String],
+    @SqlName("last_name") lastName: String
+)
+
+def hello: Unit =
+  println(sqlFieldNamesFor[AppUser]) // Vector((lastName, last_name))