package AST;
import java.util.HashSet;import java.util.LinkedHashSet;import java.io.FileNotFoundException;import java.io.File;import java.util.*;import beaver.*;import java.util.ArrayList;import java.util.zip.*;import java.io.*;public class VariableDeclaration extends Stmt implements Cloneable, SimpleSet, Iterator, Variable {
    public void flushCache() {        super.flushCache();        isDAafter_Variable_values = null;        isDUafter_Variable_values = null;        constant_computed = false;        constant_value = null;        localNum_computed = false;    }     @SuppressWarnings({"unchecked", "cast"})  public VariableDeclaration clone() throws CloneNotSupportedException {        VariableDeclaration node = (VariableDeclaration)super.clone();        node.isDAafter_Variable_values = null;        node.isDUafter_Variable_values = null;        node.constant_computed = false;        node.constant_value = null;        node.localNum_computed = false;        node.in$Circle(false);        node.is$Final(false);    return node;    }     @SuppressWarnings({"unchecked", "cast"})  public VariableDeclaration copy() {      try {          VariableDeclaration node = (VariableDeclaration)clone();          if(children != null) node.children = (ASTNode[])children.clone();          return node;      } catch (CloneNotSupportedException e) {      }      System.err.println("Error: Could not clone node of type " + getClass().getName() + "!");      return null;    }     @SuppressWarnings({"unchecked", "cast"})  public VariableDeclaration fullCopy() {        VariableDeclaration res = (VariableDeclaration)copy();        for(int i = 0; i < getNumChildNoTransform(); i++) {          ASTNode node = getChildNoTransform(i);          if(node != null) node = node.fullCopy();          res.setChild(node, i);        }        return res;    }    // Declared in DataStructures.jrag at line 85  public SimpleSet add(Object o) {    return new SimpleSetImpl().add(this).add(o);  }    // Declared in DataStructures.jrag at line 91  private VariableDeclaration iterElem;    // Declared in DataStructures.jrag at line 92  public Iterator iterator() { iterElem = this; return this; }    // Declared in DataStructures.jrag at line 93  public boolean hasNext() { return iterElem != null; }    // Declared in DataStructures.jrag at line 94  public Object next() { Object o = iterElem; iterElem = null; return o; }    // Declared in DataStructures.jrag at line 95  public void remove() { throw new UnsupportedOperationException(); }    // Declared in NameCheck.jrag at line 299  public void nameCheck() {    SimpleSet decls = outerScope().lookupVariable(name());    for(Iterator iter = decls.iterator(); iter.hasNext(); ) {      Variable var = (Variable)iter.next();      if(var instanceof VariableDeclaration) {        VariableDeclaration decl = (VariableDeclaration)var;        if(decl != this && decl.enclosingBodyDecl() == enclosingBodyDecl())  	      error("duplicate declaration of local variable " + name() + " in enclosing scope");      }      // 8.4.1      else if(var instanceof ParameterDeclaration) {        ParameterDeclaration decl = (ParameterDeclaration)var;	      if(decl.enclosingBodyDecl() == enclosingBodyDecl())  	      error("duplicate declaration of local variable and parameter " + name());      }    }    if(getParent().getParent() instanceof Block) {      Block block = (Block)getParent().getParent();      for(int i = 0; i < block.getNumStmt(); i++) {        if(block.getStmt(i) instanceof Variable) {          Variable v = (Variable)block.getStmt(i);          if(v.name().equals(name()) && v != this) {     	    error("duplicate declaration of local variable " + name());          }	}      }    }  }    // Declared in NodeConstructors.jrag at line 74  public VariableDeclaration(Access type, String name, Expr init) {    this(new Modifiers(new List()), type, name, new Opt(init));  }    // Declared in NodeConstructors.jrag at line 78  public VariableDeclaration(Access type, String name) {    this(new Modifiers(new List()), type, name, new Opt());  }    // Declared in PrettyPrint.jadd at line 183  public void toString(StringBuffer s) {    getModifiers().toString(s);    getTypeAccess().toString(s);    s.append(" " + name());    if(hasInit()) {      s.append(" = ");      getInit().toString(s);    }    s.append(";\n");  }    // Declared in TypeCheck.jrag at line 22   // 5.2  public void typeCheck() {    if(hasInit()) {      TypeDecl source = getInit().type();      TypeDecl dest = type();      if(!source.assignConversionTo(dest, getInit()))        error("can not assign " + name() + " of type " + dest.typeName() +              " a value of type " + source.typeName());    }  }    // Declared in CreateBCode.jrag at line 219  public void createBCode(CodeGeneration gen) {    super.createBCode(gen);    if(hasInit()) {      gen.addLocalVariableEntryAtCurrentPC(name(), type().typeDescriptor(), localNum(), variableScopeEndLabel(gen));      getInit().createBCode(gen);      getInit().type().emitAssignConvTo(gen, type()); // AssignConversion      type().emitStoreLocal(gen, localNum());    }  }    // Declared in java.ast at line 3    // Declared in java.ast line 80
    public VariableDeclaration() {        super();
        setChild(new Opt(), 2);

    }    // Declared in java.ast at line 11
    // Declared in java.ast line 80    public VariableDeclaration(Modifiers p0, Access p1, String p2, Opt<Expr> p3) {        setChild(p0, 0);        setChild(p1, 1);        setID(p2);        setChild(p3, 2);    }    // Declared in java.ast at line 19    // Declared in java.ast line 80    public VariableDeclaration(Modifiers p0, Access p1, beaver.Symbol p2, Opt<Expr> p3) {        setChild(p0, 0);        setChild(p1, 1);        setID(p2);        setChild(p3, 2);    }    // Declared in java.ast at line 26  protected int numChildren() {
    return 3;
  }    // Declared in java.ast at line 29
  public boolean mayHaveRewrite() { return false; }    // Declared in java.ast at line 2    // Declared in java.ast line 80    public void setModifiers(Modifiers node) {        setChild(node, 0);    }    // Declared in java.ast at line 5    public Modifiers getModifiers() {        return (Modifiers)getChild(0);    }    // Declared in java.ast at line 9    public Modifiers getModifiersNoTransform() {        return (Modifiers)getChildNoTransform(0);    }    // Declared in java.ast at line 2    // Declared in java.ast line 80    public void setTypeAccess(Access node) {        setChild(node, 1);    }    // Declared in java.ast at line 5    public Access getTypeAccess() {        return (Access)getChild(1);    }    // Declared in java.ast at line 9    public Access getTypeAccessNoTransform() {        return (Access)getChildNoTransform(1);    }    // Declared in java.ast at line 2    // Declared in java.ast line 80    private String tokenString_ID;    // Declared in java.ast at line 3    public void setID(String value) {        tokenString_ID = value;    }    // Declared in java.ast at line 6    public int IDstart;    // Declared in java.ast at line 7    public int IDend;    // Declared in java.ast at line 8    public void setID(beaver.Symbol symbol) {        if(symbol.value != null && !(symbol.value instanceof String))          throw new UnsupportedOperationException("setID is only valid for String lexemes");        tokenString_ID = (String)symbol.value;        IDstart = symbol.getStart();        IDend = symbol.getEnd();    }    // Declared in java.ast at line 15    public String getID() {        return tokenString_ID != null ? tokenString_ID : "";    }    // Declared in java.ast at line 2    // Declared in java.ast line 80    public void setInitOpt(Opt<Expr> opt) {        setChild(opt, 2);    }    // Declared in java.ast at line 6    public boolean hasInit() {        return getInitOpt().getNumChild() != 0;    }    // Declared in java.ast at line 10     @SuppressWarnings({"unchecked", "cast"})  public Expr getInit() {        return (Expr)getInitOpt().getChild(0);    }    // Declared in java.ast at line 14    public void setInit(Expr node) {        getInitOpt().setChild(node, 0);    }    // Declared in java.ast at line 17     @SuppressWarnings({"unchecked", "cast"})  public Opt<Expr> getInitOpt() {        return (Opt<Expr>)getChild(2);    }    // Declared in java.ast at line 21     @SuppressWarnings({"unchecked", "cast"})  public Opt<Expr> getInitOptNoTransform() {        return (Opt<Expr>)getChildNoTransform(2);