diff --git a/core/org.eclipse.cdt.core/.classpath b/core/org.eclipse.cdt.core/.classpath
index 9d6202a599d..5331ddcbabb 100644
--- a/core/org.eclipse.cdt.core/.classpath
+++ b/core/org.eclipse.cdt.core/.classpath
@@ -10,5 +10,6 @@
 	<classpathentry kind="src" path="browser"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="src" path="pdom"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>
diff --git a/core/org.eclipse.cdt.core/build.properties b/core/org.eclipse.cdt.core/build.properties
index 703f38d75ce..cd98839fffa 100644
--- a/core/org.eclipse.cdt.core/build.properties
+++ b/core/org.eclipse.cdt.core/build.properties
@@ -33,4 +33,6 @@ source.cdtcore.jar = index/,\
                      search/,\
                      dependency/,\
                      browser/
-source.cdtparser.jar = parser/
+source.cdtparser.jar = parser/,\
+                       pdom/
+output.cdtparser.jar = bin/
diff --git a/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/core/pdom/PDOM.java b/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/core/pdom/PDOM.java
new file mode 100644
index 00000000000..0bda0ecc05c
--- /dev/null
+++ b/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/core/pdom/PDOM.java
@@ -0,0 +1,82 @@
+package org.eclipse.cdt.core.pdom;
+
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+import org.eclipse.cdt.core.dom.ast.IASTName;
+import org.eclipse.cdt.core.dom.ast.IBinding;
+import org.eclipse.cdt.core.dom.ast.IScope;
+
+public class PDOM {
+
+	// To reduce storage requirements we have a single table that contains all
+	// of the strings in the PDOM. To check for equality, all you need to do
+	// is compare string handles.
+	private Set stringTable = new HashSet();
+	
+	private IScope globalScope;
+	
+	/**
+	 * Look up the name from the DOM in the PDOM and return the PDOM
+	 * version of the Binding.
+	 * 
+	 * @param name
+	 * @return binding
+	 */
+	public IBinding resolveBinding(IASTName name) {
+		// look up the name in the PDOM
+		return null;
+	}
+
+	/**
+	 * Return all bindings that have this name as a prefix.
+	 * This is used for content assist.
+	 * 
+	 * @param prefix
+	 * @return bindings
+	 */
+	public IBinding[] resolvePrefix(IASTName name) {
+		return new IBinding[0];
+	}
+	
+	/**
+	 * Add the name to the PDOM. This will also add the binding to the
+	 * PDOM if it is not already there.
+	 * 
+	 * @param name
+	 */
+	public void addName(IASTName name) {
+		
+	}
+
+	/**
+	 * Get all names stored in the PDOM for a given binding.
+	 * 
+	 * @param binding
+	 * @return declarations
+	 */
+	public Iterator getDeclarations(IBinding binding) {
+		return null;
+	}
+
+	/**
+	 * Get all names in the PDOM that refer to a given binding.
+	 * @param binding
+	 * @return references
+	 */
+	public Iterator getReferences(IBinding binding) {
+		return null;
+	}
+	
+	/**
+	 * Clear all names from the PDOM that appear in the given file.
+	 * This is used when reparsing a file.
+	 * 
+	 * @param filename
+	 */
+	public void clearNamesInFile(String filename) {
+		
+	}
+
+}
diff --git a/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/core/pdom/PDOMUnimplementedException.java b/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/core/pdom/PDOMUnimplementedException.java
new file mode 100644
index 00000000000..259722e45b2
--- /dev/null
+++ b/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/core/pdom/PDOMUnimplementedException.java
@@ -0,0 +1,8 @@
+package org.eclipse.cdt.core.pdom;
+
+
+public class PDOMUnimplementedException extends Error {
+
+	private static final long serialVersionUID = 99L;			
+	
+}
diff --git a/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/internal/core/pdom/PCASTName.java b/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/internal/core/pdom/PCASTName.java
new file mode 100644
index 00000000000..79184e93afa
--- /dev/null
+++ b/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/internal/core/pdom/PCASTName.java
@@ -0,0 +1,87 @@
+package org.eclipse.cdt.internal.core.pdom;
+
+import org.eclipse.cdt.core.dom.ast.ASTNodeProperty;
+import org.eclipse.cdt.core.dom.ast.ASTVisitor;
+import org.eclipse.cdt.core.dom.ast.IASTFileLocation;
+import org.eclipse.cdt.core.dom.ast.IASTName;
+import org.eclipse.cdt.core.dom.ast.IASTNode;
+import org.eclipse.cdt.core.dom.ast.IASTNodeLocation;
+import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
+import org.eclipse.cdt.core.dom.ast.IBinding;
+import org.eclipse.cdt.core.pdom.PDOMUnimplementedException;
+
+public class PCASTName implements IASTName {
+
+	public IBinding resolveBinding() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public IBinding getBinding() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public void setBinding(IBinding binding) {
+		throw new PDOMUnimplementedException();
+	}
+
+	public IBinding[] resolvePrefix() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public char[] toCharArray() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isDeclaration() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isReference() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isDefinition() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public IASTTranslationUnit getTranslationUnit() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public IASTNodeLocation[] getNodeLocations() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public IASTFileLocation getFileLocation() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public String getContainingFilename() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public IASTNode getParent() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public void setParent(IASTNode node) {
+		throw new PDOMUnimplementedException();
+	}
+
+	public ASTNodeProperty getPropertyInParent() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public void setPropertyInParent(ASTNodeProperty property) {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean accept(ASTVisitor visitor) {
+		throw new PDOMUnimplementedException();
+	}
+
+	public String getRawSignature() {
+		throw new PDOMUnimplementedException();
+	}
+
+}
diff --git a/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/internal/core/pdom/PCBasicType.java b/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/internal/core/pdom/PCBasicType.java
new file mode 100644
index 00000000000..148c8239314
--- /dev/null
+++ b/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/internal/core/pdom/PCBasicType.java
@@ -0,0 +1,59 @@
+package org.eclipse.cdt.internal.core.pdom;
+
+import org.eclipse.cdt.core.dom.ast.DOMException;
+import org.eclipse.cdt.core.dom.ast.IASTExpression;
+import org.eclipse.cdt.core.dom.ast.IType;
+import org.eclipse.cdt.core.dom.ast.c.ICBasicType;
+import org.eclipse.cdt.core.pdom.PDOMUnimplementedException;
+
+public class PCBasicType implements ICBasicType {
+
+	public Object clone() {
+		try {
+			return super.clone();
+		} catch (CloneNotSupportedException e) {
+			return null;
+		}
+	}
+	
+	public boolean isComplex() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isImaginary() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isLongLong() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public int getType() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public IASTExpression getValue() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isSigned() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isUnsigned() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isShort() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isLong() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isSameType(IType type) {
+		throw new PDOMUnimplementedException();
+	}
+
+}
diff --git a/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/internal/core/pdom/PCVariable.java b/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/internal/core/pdom/PCVariable.java
new file mode 100644
index 00000000000..fdc6035ccee
--- /dev/null
+++ b/core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/internal/core/pdom/PCVariable.java
@@ -0,0 +1,43 @@
+package org.eclipse.cdt.internal.core.pdom;
+
+import org.eclipse.cdt.core.dom.ast.DOMException;
+import org.eclipse.cdt.core.dom.ast.IScope;
+import org.eclipse.cdt.core.dom.ast.IType;
+import org.eclipse.cdt.core.dom.ast.IVariable;
+import org.eclipse.cdt.core.pdom.PDOMUnimplementedException;
+
+public class PCVariable implements IVariable {
+
+	public IType getType() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isStatic() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isExtern() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isAuto() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public boolean isRegister() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+	public String getName() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public char[] getNameCharArray() {
+		throw new PDOMUnimplementedException();
+	}
+
+	public IScope getScope() throws DOMException {
+		throw new PDOMUnimplementedException();
+	}
+
+}