Index: impl/ASTASClassType.java
===================================================================
--- impl/ASTASClassType.java	(revision 632)
+++ impl/ASTASClassType.java	(working copy)
@@ -35,12 +35,28 @@
 		ASTUtils.addChildWithIndentation(findTypeBlock(), method.getAST());
 	}
 
+	private LinkedListTree findModifiers() {
+		return ASTUtils.findChildByType(ast, AS3Parser.MODIFIERS);
+	}
+	
 	public String getSuperclass() {
 		LinkedListTree ext = ASTUtils.findChildByType(ast, AS3Parser.EXTENDS);
 		if (ext == null) return null;
 		return ASTUtils.identText(ext.getFirstChild());
 	}
 
+	public boolean isDynamic() {
+		return ModifierUtils.isDynamic(findModifiers());
+	}
+	
+	public boolean isFinal() {
+		return ModifierUtils.isFinal(findModifiers());
+	}
+
+	public boolean isIntrinsic() {
+		return ModifierUtils.isIntrinsic(findModifiers());
+	}
+	
 	public void setSuperclass(String superclassName) {
 		if (superclassName == null) {
 			removeExtendsClause();
@@ -172,4 +188,16 @@
 			}
 		}
 	}
+	
+	public void setDynamic(boolean value) {
+		ModifierUtils.setDynamic(findModifiers(), value);
+	}
+
+	public void setFinal(boolean value) {
+		ModifierUtils.setFinal(findModifiers(), value);
+	}
+
+	public void setIntrinsic(boolean value) {
+		ModifierUtils.setIntrinsic(findModifiers(), value);
+	}
 }
Index: impl/ModifierUtils.java
===================================================================
--- impl/ModifierUtils.java	(revision 632)
+++ impl/ModifierUtils.java	(working copy)
@@ -17,6 +17,9 @@
  */
 class ModifierUtils {
 
+	private static final int FINAL = 179;
+	private static final int INTRINSIC = 183;
+
 	public static Visibility getVisibility(LinkedListTree modifiers) {
 		for (ASTIterator i=new ASTIterator(modifiers); i.hasNext(); ) {
 			LinkedListTree mod = i.next();
@@ -35,7 +38,62 @@
 		}
 		return Visibility.DEFAULT;
 	}
+	
+	private static boolean hasModifierFlag(LinkedListTree modifiers, int type) {
+		for (ASTIterator i=new ASTIterator(modifiers); i.hasNext(); ) {
+			LinkedListTree mod = i.next();
+			if (mod.getType() == type) {
+				return true;
+			}
+		}
+		return false;
+	}
 
+	public static boolean isDynamic(LinkedListTree modifiers) {
+		return hasModifierFlag(modifiers, AS3Parser.DYNAMIC);
+	}
+
+	public static boolean isFinal(LinkedListTree modifiers) {
+		return hasModifierFlag(modifiers, FINAL);
+	}
+
+	public static boolean isIntrinsic(LinkedListTree modifiers) {
+		return hasModifierFlag(modifiers, INTRINSIC);
+	}
+
+	public static void setDynamic(LinkedListTree modifiers, boolean value) {
+		setModifierFlag(modifiers, value, AS3Parser.DYNAMIC, "dynamic");
+	}
+
+	public static void setFinal(LinkedListTree modifiers, boolean value) {
+		setModifierFlag(modifiers, value, FINAL, "final");
+	}
+
+	public static void setIntrinsic(LinkedListTree modifiers, boolean value) {
+		setModifierFlag(modifiers, value, INTRINSIC, "intrinsic");
+	}
+
+	private static void setModifierFlag(LinkedListTree modifiers, boolean flag, int type, String text) {
+		for (ASTIterator i=new ASTIterator(modifiers); i.hasNext(); ) {
+			LinkedListTree mod = i.next();
+			if (mod.getType() == type) {
+				if (flag) return;
+				else {
+					i.remove();
+					if (modifiers.getChildCount() == 0) {
+						deleteAllChildTokens(modifiers);
+					}
+				}
+				return;
+			}
+		}
+		if (flag) {
+			LinkedListTree node = ASTUtils.newAST(type, text);
+			node.appendToken(TokenBuilder.newSpace());
+			modifiers.addChildWithTokens(node);
+		}
+	}
+
 	public static void setVisibility(LinkedListTree modifiers, Visibility protection) {
 		for (ASTIterator i=new ASTIterator(modifiers); i.hasNext(); ) {
 			LinkedListTree mod = i.next();
Index: dom/ASClassType.java
===================================================================
--- dom/ASClassType.java	(revision 631)
+++ dom/ASClassType.java	(working copy)
@@ -63,8 +63,41 @@
 	public List getFields();
 
 	/**
+	 * Returns true if the class is defined with the <code>dynamic</code>
+	 * modifier, and false otherwise.
+	 */
+	public boolean isDynamic();
+	
+	/**
+	 * Returns true if the class is defined with the <code>final</code>
+	 * modifier, and false otherwise.
+	 */
+	public boolean isFinal();
+
+	/**
+	 * Returns true if the class is defined with the <code>intrinsic</code>
+	 * modifier, and false otherwise.
+	 */
+	public boolean isIntrinsic();
+
+	/**
 	 * Removes the named field from the list of fields which this
 	 * ActionScript class defines.
 	 */
 	public void removeField(String name);
+	
+	/**
+	 * Adds or removes the <code>dynamic</code> modifer.
+	 */
+	public void setDynamic(boolean value);
+	
+	/**
+	 * Adds or removes the <code>final</code> modifer.
+	 */
+	public void setFinal(boolean value);
+
+	/**
+	 * Adds or removes the <code>intrinsic</code> modifer.
+	 */
+	public void setIntrinsic(boolean value);
 }
\ No newline at end of file