From d2c0329df022e85e12be3a5d77ea132a8b22e954 Mon Sep 17 00:00:00 2001
From: Svetlana Isakova <svetlana.isakova@jetbrains.com>
Date: Wed, 11 Jul 2012 14:41:53 +0400
Subject: [PATCH] add interface TypeConstraints containing resulting lower and
 upper constraints and being constraintsBuilder's result for each type
 parameter

---
 .../calls/inference/TypeConstraints.java      | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/inference/TypeConstraints.java

diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/inference/TypeConstraints.java b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/inference/TypeConstraints.java
new file mode 100644
index 00000000000..a8d8ea5d678
--- /dev/null
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/inference/TypeConstraints.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.lang.resolve.calls.inference;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.jetbrains.jet.lang.types.JetType;
+import org.jetbrains.jet.lang.types.Variance;
+
+import java.util.Set;
+
+/**
+ * @author svtk
+ */
+public interface TypeConstraints {
+
+    @Nullable
+    JetType getLowerConstraint();
+
+    @Nullable
+    JetType getUpperConstraint();
+
+    @NotNull
+    Set<JetType> getConflicts();
+
+    @NotNull
+    Variance getVariance();
+
+    boolean isSuccessful();
+
+    boolean isEmpty();
+
+}