1 files changed, 63 insertions, 0 deletions
diff --git a/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/modules/decompiler/vars/VarVersionPaar.java b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/modules/decompiler/vars/VarVersionPaar.java
new file mode 100644
index 000000000000..5f3e520a84d0
--- /dev/null
+++ b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/modules/decompiler/vars/VarVersionPaar.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2000-2014 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.java.decompiler.modules.decompiler.vars;
+
+import org.jetbrains.java.decompiler.modules.decompiler.exps.VarExprent;
+
+public class VarVersionPaar {
+
+  public int var;
+  public int version;
+
+  private int hashCode = -1;
+
+  public VarVersionPaar(int var, int version) {
+    this.var = var;
+    this.version = version;
+  }
+
+  public VarVersionPaar(Integer var, Integer version) {
+    this.var = var.intValue();
+    this.version = version.intValue();
+  }
+
+  public VarVersionPaar(VarExprent var) {
+    this.var = var.getIndex();
+    this.version = var.getVersion();
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) return true;
+    if (o == null || !(o instanceof VarVersionPaar)) return false;
+
+    VarVersionPaar paar = (VarVersionPaar)o;
+    return var == paar.var && version == paar.version;
+  }
+
+  @Override
+  public int hashCode() {
+    if (hashCode == -1) {
+      hashCode = this.var * 3 + this.version;
+    }
+    return hashCode;
+  }
+
+  @Override
+  public String toString() {
+    return "(" + var + "," + version + ")";
+  }
+}