chore(build): fix fatal build error caused by scala/scala3#20741

Author: updraft0

.scalafmt.conf

@@ -1,2 +1,2 @@
-version = "3.5.3"
+version = "3.8.6"
 runner.dialect = scala3

build.sbt

@@ -218,14 +218,15 @@ lazy val example = scalajsProject("client", true)
   .settings(scalacOptions ++= usedScalacOptions)
   .dependsOn(ui5, exampleSharedJs)
   .settings(
-    publish / skip := true
+    publish / skip := true,
+    scalacOptions -= "-Xfatal-warnings" // disable fatal warnings due to spurious https://github.com/scala/scala3/issues/20741
   )
 
 lazy val exampleShared = crossProject(JSPlatform, JVMPlatform)
   .crossType(CrossType.Pure)
   .in(file("examples/shared"))
   .settings(
-    publish / skip := true
+    publish / skip := true,
   )
 lazy val exampleSharedJvm = exampleShared.jvm
 lazy val exampleSharedJs = exampleShared.js

examples/client/src/main/scala/WebSocketDemo.scala

@@ -7,7 +7,7 @@ package samples
 //import org.scalajs.dom.KeyCode
 
 object WebSocketDemo {
-/*
+  /*
   private def sherpal =
     img(src := "images/avatars/ono.png", alt := "Ono")
 
@@ -55,5 +55,5 @@ object WebSocketDemo {
       )
     )
   )
-*/
+   */
 }

examples/client/src/main/scala/samples/AdHoc.scala

@@ -4,14 +4,14 @@ import com.raquo.laminar.api.L.*
 import dev.cheleb.scalamigen.*
 import io.github.iltotore.iron.constraint.all.*
 
-val adhoc = {
+val adhoc: Sample = {
 
   // outside your scope / in another library
   // => meaning '@FieldName' or '@NoPanel' annotations are not possible
   case class Cat(
       name: String,
       kind: Boolean = true,
-      color: Color,
+      color: Color
   )
 
   enum Color(val code: String):
@@ -21,23 +21,24 @@ val adhoc = {
 
   // your library
   case class Basket(color: Color, cat: Cat)
-  
+
   given colorForm: Form[Color] =
     selectForm(Color.values, labelMapper = c => s"$c ${c.code}")
       .withFieldName("Select color")
 
-  given Form[Cat] = 
-    Form.autoDerived[Cat]
-        .withFieldName("Your cat")
-        .withPanelConfig(label = Some("What kind of cat ?"), asTable = true)
+  given Form[Cat] =
+    Form
+      .autoDerived[Cat]
+      .withFieldName("Your cat")
+      .withPanelConfig(label = Some("What kind of cat ?"), asTable = true)
 
   val enumVar = Var(
     Basket(
       Color.Black,
       Cat(
         "Scala",
         true,
-        Color.White,
+        Color.White
       )
     )
   )
@@ -73,10 +74,11 @@ val adhoc = {
        |  selectForm(Color.values, labelMapper = c => s"$c ${c.code}")
        |    .withFieldName("Select color")
        |
+       |@annotation.nowarn
        |given Form[Cat] = 
        |  Form.autoDerived[Cat]
        |      .withFieldName("Your cat")
        |      .withPanelConfig(label = Some("What kind of cat ?"), asTable = true)
        |""".stripMargin
   )
-}
+}

examples/client/src/main/scala/samples/Conditional.scala

@@ -36,7 +36,7 @@ given formExtraString: Form[Option[ExtraString]] =
 given formExtraInt: Form[Option[ExtraInt]] =
   Form.conditionalOn[ConditionalSample, ExtraInt](conditionalVar)
 
-val conditional = {
+val conditional: Sample = {
 
   Sample(
     "Conditional",

examples/client/src/main/scala/samples/EitherSample.scala

@@ -3,7 +3,7 @@ package samples
 import dev.cheleb.scalamigen.*
 import com.raquo.laminar.api.L.*
 
-val either = {
+val either: Sample = {
 
   case class Cat(name: String, age: Int)
   case class Dog(name: String, age: Int)

examples/client/src/main/scala/samples/EnumSample.scala

@@ -6,7 +6,7 @@ import io.github.iltotore.iron.*
 import io.github.iltotore.iron.constraint.all.*
 import java.util.UUID
 
-val enums = {
+val enums: Sample = {
   enum Color(val code: String):
     case Black extends Color("000")
     case White extends Color("FFF")

examples/client/src/main/scala/samples/ListElement.scala

@@ -3,7 +3,7 @@ package samples
 import com.raquo.laminar.api.L.*
 import dev.cheleb.scalamigen.*
 
-val list = {
+val list: Sample = {
   case class Person2(id: Int, name: String, age: Int)
 
   case class ListElement(

examples/client/src/main/scala/samples/OpaqueType.scala

@@ -3,7 +3,7 @@ package samples
 import com.raquo.laminar.api.L.*
 import dev.cheleb.scalamigen.*
 
-val opaque = {
+val opaque: Sample = {
 
   case class Person(
       name: String,

examples/client/src/main/scala/samples/Persons.scala

@@ -7,7 +7,7 @@ import java.time.LocalDate
 import io.github.iltotore.iron.*
 import io.github.iltotore.iron.constraint.all.*
 
-val person = {
+val person: Sample = {
   // Define some models
 
   @NoPanel

examples/client/src/main/scala/samples/Sealed.scala

@@ -6,7 +6,7 @@ import com.raquo.laminar.api.L.*
 
 import com.raquo.laminar.nodes.ReactiveHtmlElement
 
-val sealedClasses = {
+val sealedClasses: Sample = {
 
   enum Color(val code: String):
     case Black extends Color("000")

examples/client/src/main/scala/samples/SimpleSample.scala

@@ -6,7 +6,7 @@ import dev.cheleb.scalamigen.*
 import io.github.iltotore.iron.*
 import io.github.iltotore.iron.constraint.all.*
 
-val simple = {
+val simple: Sample = {
 
   case class Cat(
       name: String,

examples/client/src/main/scala/samples/Tree.scala

@@ -6,7 +6,7 @@ import com.raquo.laminar.api.L.*
 
 /** Poc poc =D
   */
-val tree = {
+val tree: Sample = {
 
   enum Tree[+T]:
     case Empty extends Tree[Nothing]

examples/client/src/main/scala/samples/Validation.scala

@@ -7,7 +7,7 @@ import com.raquo.laminar.api.L.*
 import io.github.iltotore.iron.*
 import io.github.iltotore.iron.constraint.all.*
 
-val validation = {
+val validation: Sample = {
 
   case class LatLon(lat: Double, lon: Double) {
     override def toString: String = s"$lat,$lon"

examples/client/src/main/scala/samples/package.scala

@@ -15,25 +15,24 @@ object Password:
 
 opaque type ExtraString = String
 object ExtraString:
-    def apply(s: String): ExtraString = s
-    // given Form[ExtraString] = stringForm(identity)
-    given Form[ExtraString] = stringFormWithValidation(using 
-        new Validator[ExtraString] {
-            override def validate(str: String): Either[String, ExtraString] = 
-                str.matches("^[a-fA-F0-9]+$") match
-                    case true => Right(str)
-                    case false => Left("expected hexadecimal string (just for demo)")
-        }
-    )
-    given Defaultable[ExtraString] with
-        def default: ExtraString = ""
-
+  def apply(s: String): ExtraString = s
+  // given Form[ExtraString] = stringForm(identity)
+  given Form[ExtraString] = stringFormWithValidation(using
+    new Validator[ExtraString] {
+      override def validate(str: String): Either[String, ExtraString] =
+        str.matches("^[a-fA-F0-9]+$") match
+          case true  => Right(str)
+          case false => Left("expected hexadecimal string (just for demo)")
+    }
+  )
+  given Defaultable[ExtraString] with
+    def default: ExtraString = ""
 
 opaque type ExtraInt = Int
 object ExtraInt:
-    def apply(i: Int): ExtraInt = i
-    given Form[ExtraInt] = numericForm(_.toIntOption, 0)
-    given Defaultable[ExtraInt] with
-        def default: ExtraInt = 0
+  def apply(i: Int): ExtraInt = i
+  given Form[ExtraInt] = numericForm(_.toIntOption, 0)
+  given Defaultable[ExtraInt] with
+    def default: ExtraInt = 0
 
 given WidgetFactory = if true then UI5WidgetFactory else LaminarWidgetFactory

modules/core/src/main/scala/dev/cheleb/scalamigen/ConditionalFor.scala

@@ -1,4 +1,4 @@
 package dev.cheleb.scalamigen
 
 trait ConditionalFor[C, A]:
-    def check: C => Boolean
+  def check: C => Boolean