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 AddExpr extends AdditiveExpr implements Cloneable {
    public void flushCache() {        super.flushCache();        type_computed = false;        type_value = null;    }     @SuppressWarnings({"unchecked", "cast"})  public AddExpr clone() throws CloneNotSupportedException {        AddExpr node = (AddExpr)super.clone();        node.type_computed = false;        node.type_value = null;        node.in$Circle(false);        node.is$Final(false);    return node;    }     @SuppressWarnings({"unchecked", "cast"})  public AddExpr copy() {      try {          AddExpr node = (AddExpr)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 AddExpr fullCopy() {        AddExpr res = (AddExpr)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 TypeCheck.jrag at line 172    // 15.18  public void typeCheck() {    TypeDecl left = getLeftOperand().type();    TypeDecl right = getRightOperand().type();    if(!left.isString() && !right.isString())      super.typeCheck();    else if(left.isVoid())      error("The type void of the left hand side is not numeric");    else if(right.isVoid())      error("The type void of the right hand side is not numeric");  }    // Declared in CodeGeneration.jrag at line 1029  // binary  void emitOperation(CodeGeneration gen) { type().add(gen); }    // Declared in CreateBCode.jrag at line 880  public void createBCode(CodeGeneration gen) {    if(!type().isString())      super.createBCode(gen);    else if(isConstant()) {      StringLiteral.push(gen, constant().stringValue());    }    else {      TypeDecl stringBuffer = lookupType("java.lang", "StringBuffer");      String classname = stringBuffer.constantPoolName();      String desc;      int index;      TypeDecl argumentType;      if(firstStringAddPart()) {        stringBuffer.emitNew(gen); // new StringBuffer        gen.emitDup();             // dup        desc = "()V";        index = gen.constantPool().addMethodref(classname, "<init>", desc);        gen.emit(Bytecode.INVOKESPECIAL, -1).add2(index); // invokespecial StringBuffer()        getLeftOperand().createBCode(gen); // left        argumentType = getLeftOperand().type().stringPromotion();        desc = "(" + argumentType.typeDescriptor() + ")" + stringBuffer.typeDescriptor();        index = gen.constantPool().addMethodref(classname, "append", desc);        gen.emit(Bytecode.INVOKEVIRTUAL, -argumentType.variableSize()).add2(index); // StringBuffer.append      }      else {        getLeftOperand().createBCode(gen);      }      getRightOperand().createBCode(gen); // right      argumentType = getRightOperand().type().stringPromotion();      desc = "(" + argumentType.typeDescriptor() + ")" + stringBuffer.typeDescriptor();      index = gen.constantPool().addMethodref(classname, "append", desc);      gen.emit(Bytecode.INVOKEVIRTUAL, -argumentType.variableSize()).add2(index); // StringBuffer.append      if(lastStringAddPart()) {        desc = "()" + type().typeDescriptor();        index = gen.constantPool().addMethodref(classname, "toString", desc);        gen.emit(Bytecode.INVOKEVIRTUAL, 0).add2(index); // StringBuffer.toString      }    }  }    // Declared in java.ast at line 3    // Declared in java.ast line 161
    public AddExpr() {        super();

    }    // Declared in java.ast at line 10
    // Declared in java.ast line 161    public AddExpr(Expr p0, Expr p1) {        setChild(p0, 0);        setChild(p1, 1);    }    // Declared in java.ast at line 15  protected int numChildren() {
    return 2;
  }    // Declared in java.ast at line 18
  public boolean mayHaveRewrite() { return false; }    // Declared in java.ast at line 2    // Declared in java.ast line 153    public void setLeftOperand(Expr node) {        setChild(node, 0);    }    // Declared in java.ast at line 5    public Expr getLeftOperand() {        return (Expr)getChild(0);    }    // Declared in java.ast at line 9    public Expr getLeftOperandNoTransform() {        return (Expr)getChildNoTransform(0);    }    // Declared in java.ast at line 2    // Declared in java.ast line 153    public void setRightOperand(Expr node) {        setChild(node, 1);    }    // Declared in java.ast at line 5    public Expr getRightOperand() {        return (Expr)getChild(1);    }    // Declared in java.ast at line 9    public Expr getRightOperandNoTransform() {        return (Expr)getChildNoTransform(1);    }    // Declared in ConstantExpression.jrag at line 121 @SuppressWarnings({"unchecked", "cast"})     public Constant constant() {        Constant constant_value = constant_compute();        return constant_value;    }    private Constant constant_compute() {  return type().add(getLeftOperand().constant(), getRightOperand().constant());  }    // Declared in PrettyPrint.jadd at line 420 @SuppressWarnings({"unchecked", "cast"})     public String printOp() {        String printOp_value = printOp_compute();        return printOp_value;    }    private String printOp_compute() {  return " + ";  }    // Declared in TypeAnalysis.jrag at line 328 @SuppressWarnings({"unchecked", "cast"})     public TypeDecl type() {        if(type_computed)            return type_value;        int num = boundariesCrossed;        boolean isFinal = this.is$Final();        type_value = type_compute();        if(isFinal && num == boundariesCrossed)            type_computed = true;        return type_value;    }    private TypeDecl type_compute() {    TypeDecl left = getLeftOperand().type();    TypeDecl right = getRightOperand().type();    if(!left.isString() && !right.isString())      return super.type();    else {      if(left.isVoid() || right.isVoid())        return unknownType();      // pick the string type      return left.isString() ? left : right;    }  }    // Declared in InnerClasses.jrag at line 86 @SuppressWarnings({"unchecked", "cast"})     public boolean isStringAdd() {        boolean isStringAdd_value = isStringAdd_compute();        return isStringAdd_value;    }    private boolean isStringAdd_compute() {  return type().isString() && !isConstant();  }    // Declared in InnerClasses.jrag at line 88 @SuppressWarnings({"unchecked", "cast"})     public boolean firstStringAddPart() {        boolean firstStringAddPart_value = firstStringAddPart_compute();        return firstStringAddPart_value;    }    private boolean firstStringAddPart_compute() {  return type().isString() && !getLeftOperand().isStringAdd();  }    // Declared in InnerClasses.jrag at line 89 @SuppressWarnings({"unchecked", "cast"})     public boolean lastStringAddPart() {        boolean lastStringAddPart_value = lastStringAddPart_compute();        return lastStringAddPart_value;    }    private boolean lastStringAddPart_compute() {  return !getParent().isStringAdd();  }public ASTNode rewriteTo() {    return super.rewriteTo();}}