1 files changed, 100 insertions, 0 deletions
diff --git a/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/struct/gen/DataPoint.java b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/struct/gen/DataPoint.java
new file mode 100644
index 000000000000..65a621308087
--- /dev/null
+++ b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/struct/gen/DataPoint.java
@@ -0,0 +1,100 @@
+/*
+ * 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.struct.gen;
+
+import org.jetbrains.java.decompiler.code.CodeConstants;
+import org.jetbrains.java.decompiler.struct.StructMethod;
+import org.jetbrains.java.decompiler.util.ListStack;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class DataPoint {
+
+  private List<VarType> localVariables = new ArrayList<VarType>();
+
+  private ListStack<VarType> stack = new ListStack<VarType>();
+
+
+  public void setVariable(int index, VarType value) {
+    if (index >= localVariables.size()) {
+      for (int i = localVariables.size(); i <= index; i++) {
+        localVariables.add(new VarType(CodeConstants.TYPE_NOTINITIALIZED));
+      }
+    }
+
+    localVariables.set(index, value);
+  }
+
+  public VarType getVariable(int index) {
+    if (index < localVariables.size()) {
+      return localVariables.get(index);
+    }
+    else if (index < 0) {
+      throw new IndexOutOfBoundsException();
+    }
+    else {
+      return new VarType(CodeConstants.TYPE_NOTINITIALIZED);
+    }
+  }
+
+  public DataPoint copy() {
+    DataPoint point = new DataPoint();
+    point.setLocalVariables(new ArrayList<VarType>(localVariables));
+    point.setStack(stack.clone());
+    return point;
+  }
+
+  public static DataPoint getInitialDataPoint(StructMethod mt) {
+
+    DataPoint point = new DataPoint();
+
+    MethodDescriptor md = MethodDescriptor.parseDescriptor(mt.getDescriptor());
+
+    int k = 0;
+    if (!mt.hasModifier(CodeConstants.ACC_STATIC)) {
+      point.setVariable(k++, new VarType(CodeConstants.TYPE_OBJECT, 0, null));
+    }
+
+    for (int i = 0; i < md.params.length; i++) {
+      VarType var = md.params[i];
+
+      point.setVariable(k++, var);
+      if (var.stack_size == 2) {
+        point.setVariable(k++, new VarType(CodeConstants.TYPE_GROUP2EMPTY));
+      }
+    }
+
+    return point;
+  }
+
+
+  public List<VarType> getLocalVariables() {
+    return localVariables;
+  }
+
+  public void setLocalVariables(List<VarType> localVariables) {
+    this.localVariables = localVariables;
+  }
+
+  public ListStack<VarType> getStack() {
+    return stack;
+  }
+
+  public void setStack(ListStack<VarType> stack) {
+    this.stack = stack;
+  }
+}