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Unified Diff: lib/compiler/implementation/constants.dart

Issue 10917208: Change interfaces to abstract classes in dart2js compiler. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 8 years, 3 months ago
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Index: lib/compiler/implementation/constants.dart
diff --git a/lib/compiler/implementation/constants.dart b/lib/compiler/implementation/constants.dart
index e5f2e7a0c7d0acb1f26c7585e3775144fa526993..d9f2d48ed8b90625cb98e388747931698a3ed1f5 100644
--- a/lib/compiler/implementation/constants.dart
+++ b/lib/compiler/implementation/constants.dart
@@ -2,7 +2,7 @@
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
-interface ConstantVisitor<R> {
+abstract class ConstantVisitor<R> {
R visitSentinel(SentinelConstant constant);
R visitFunction(FunctionConstant constant);
R visitNull(NullConstant constant);
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