Add polyfills for below 3.x

polyvariant · Jan 19, 2024 · 3780c74 · 3780c74
1 parent a80d28e
commit 3780c74
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diff --git a/plugin/src/main/scala-3.1.x/ParentTypes.scala b/plugin/src/main/scala-3.1.x/ParentTypes.scala
@@ -0,0 +1,15 @@
+package org.polyvariant
+
+import dotty.tools.dotc.core.Symbols.ClassSymbol
+import dotty.tools.dotc.core.Contexts.Context
+import dotty.tools.dotc.core.Types.Type
+import dotty.tools.dotc.core.Types.ClassInfo
+
+extension (clazz: ClassSymbol) {
+
+  // 3.1.x/3.2.x doesn't have this method, this is the inlined definition from 3.3.x
+  def parentTypes(using Context): List[Type] = clazz.info match
+    case classInfo: ClassInfo => classInfo.declaredParents
+    case _                    => Nil
+
+}
diff --git a/plugin/src/main/scala-3.2.x/ParentTypes.scala b/plugin/src/main/scala-3.2.x/ParentTypes.scala
@@ -0,0 +1,15 @@
+package org.polyvariant
+
+import dotty.tools.dotc.core.Symbols.ClassSymbol
+import dotty.tools.dotc.core.Contexts.Context
+import dotty.tools.dotc.core.Types.Type
+import dotty.tools.dotc.core.Types.ClassInfo
+
+extension (clazz: ClassSymbol) {
+
+  // 3.1.x/3.2.x doesn't have this method, this is the inlined definition from 3.3.x
+  def parentTypes(using Context): List[Type] = clazz.info match
+    case classInfo: ClassInfo => classInfo.declaredParents
+    case _                    => Nil
+
+}