1 files changed, 98 insertions, 0 deletions
diff --git a/src/org/jetbrains/java/decompiler/struct/gen/DataPoint.java b/src/org/jetbrains/java/decompiler/struct/gen/DataPoint.java
new file mode 100644
index 0000000..db6ecd1
--- /dev/null
+++ b/src/org/jetbrains/java/decompiler/struct/gen/DataPoint.java
@@ -0,0 +1,98 @@
+/*
+ *    Fernflower - The Analytical Java Decompiler
+ *    http://www.reversed-java.com
+ *
+ *    (C) 2008 - 2010, Stiver
+ *
+ *    This software is NEITHER public domain NOR free software 
+ *    as per GNU License. See license.txt for more details.
+ *
+ *    This software is distributed WITHOUT ANY WARRANTY; without 
+ *    even the implied warranty of MERCHANTABILITY or FITNESS FOR 
+ *    A PARTICULAR PURPOSE. 
+ */
+
+package org.jetbrains.java.decompiler.struct.gen;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.jetbrains.java.decompiler.code.CodeConstants;
+import org.jetbrains.java.decompiler.struct.StructMethod;
+import org.jetbrains.java.decompiler.util.ListStack;
+
+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.getAccessFlags() & CodeConstants.ACC_STATIC) == 0) {
+			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;
+	}
+	
+}