From 40ce201bb8087503b6f55f49c67980318fc1bfdb Mon Sep 17 00:00:00 2001
From: Enno Runne <enno@runne.net>
Date: Mon, 20 Feb 2017 22:12:44 +0100
Subject: Change 'is abstract; cannot be instantiated' to Message

---
 .../src/dotty/tools/dotc/reporting/diagnostic/ErrorMessageID.java | 4 +++-
 compiler/src/dotty/tools/dotc/reporting/diagnostic/messages.scala | 8 ++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

(limited to 'compiler/src/dotty/tools/dotc/reporting')

diff --git a/compiler/src/dotty/tools/dotc/reporting/diagnostic/ErrorMessageID.java b/compiler/src/dotty/tools/dotc/reporting/diagnostic/ErrorMessageID.java
index c74130b44..2bf15cb7c 100644
--- a/compiler/src/dotty/tools/dotc/reporting/diagnostic/ErrorMessageID.java
+++ b/compiler/src/dotty/tools/dotc/reporting/diagnostic/ErrorMessageID.java
@@ -49,7 +49,9 @@ public enum ErrorMessageID {
     OverridesNothingButNameExistsID,
     ForwardReferenceExtendsOverDefinitionID,
     ExpectedTokenButFoundID,
-    MixedLeftAndRightAssociativeOpsID;
+    MixedLeftAndRightAssociativeOpsID,
+    CantInstantiateAbstractClassOrTraitID,
+    ;
 
     public int errorNumber() {
         return ordinal() - 2;
diff --git a/compiler/src/dotty/tools/dotc/reporting/diagnostic/messages.scala b/compiler/src/dotty/tools/dotc/reporting/diagnostic/messages.scala
index 7fccebef9..1ad606076 100644
--- a/compiler/src/dotty/tools/dotc/reporting/diagnostic/messages.scala
+++ b/compiler/src/dotty/tools/dotc/reporting/diagnostic/messages.scala
@@ -1127,4 +1127,12 @@ object messages {
           |""".stripMargin
   }
 
+  case class CantInstantiateAbstractClassOrTrait(cls: Symbol, isTrait: Boolean)(implicit ctx: Context)
+  extends Message(CantInstantiateAbstractClassOrTraitID) {
+    val kind = "Usage"
+    private val traitOrAbstract = if (isTrait) hl"a trait" else hl"abstract"
+    val msg = hl"""${cls.name} is ${traitOrAbstract}; it cannot be instantiated"""
+    val explanation = ""
+  }
+
 }
-- 
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