From 4671e2b85344b092462e9d2093b9a52ef352d23e Mon Sep 17 00:00:00 2001
From: James Strachan <james.strachan@gmail.com>
Date: Thu, 5 Jul 2012 16:27:14 +0100
Subject: [PATCH] better diagnostics on failures

---
 .../jetbrains/k2js/translate/expression/ExpressionVisitor.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/js/js.translator/src/org/jetbrains/k2js/translate/expression/ExpressionVisitor.java b/js/js.translator/src/org/jetbrains/k2js/translate/expression/ExpressionVisitor.java
index fd1ecde3370..9a557914c5e 100644
--- a/js/js.translator/src/org/jetbrains/k2js/translate/expression/ExpressionVisitor.java
+++ b/js/js.translator/src/org/jetbrains/k2js/translate/expression/ExpressionVisitor.java
@@ -20,6 +20,7 @@ import com.google.dart.compiler.backend.js.ast.*;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor;
+import org.jetbrains.jet.lang.diagnostics.DiagnosticUtils;
 import org.jetbrains.jet.lang.psi.*;
 import org.jetbrains.jet.lang.resolve.BindingContext;
 import org.jetbrains.jet.lang.resolve.constants.CompileTimeConstant;
@@ -83,7 +84,7 @@ public final class ExpressionVisitor extends TranslatorVisitor<JsNode> {
             return context.program().getStringLiteral(value.toString());
         }
         //TODO: all values
-        throw new AssertionError("Unsupported constant expression" + expression.toString());
+        throw new AssertionError("Unsupported constant expression " + expression.toString() + " at " + DiagnosticUtils.atLocation(expression));
     }
 
     @Override