bitwiseexpr.java

JDK1.4编译器前端

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 abstract class BitwiseExpr extends Binary implements Cloneable {
    public void flushCache() {
        super.flushCache();
        type_visited = -1;
        type_computed = false;
        type_value = null;
    }
     @SuppressWarnings({"unchecked", "cast"})  public BitwiseExpr clone() throws CloneNotSupportedException {
        BitwiseExpr node = (BitwiseExpr)super.clone();
        node.type_visited = -1;
        node.type_computed = false;
        node.type_value = null;
        node.in$Circle(false);
        node.is$Final(false);
    return node;
    }
    // Declared in TypeCheck.jrag at line 192

  
  // 15.22
  public void typeCheck() {
    TypeDecl left = getLeftOperand().type();
    TypeDecl right = getRightOperand().type();
    if(left.isIntegralType() && right.isIntegralType())
      return;
    else if(left.isBoolean() && right.isBoolean())
      return;
    else
      error(left.typeName() + " is not compatible with " + right.typeName());
  }

    // Declared in java.ast at line 3
    // Declared in java.ast line 169

    public BitwiseExpr() {
        super();


    }

    // Declared in java.ast at line 10


    // Declared in java.ast line 169
    public BitwiseExpr(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);
    }

    protected int type_visited = -1;
    protected boolean type_computed = false;
    protected TypeDecl type_value;
    // Declared in TypeAnalysis.jrag at line 351
 @SuppressWarnings({"unchecked", "cast"})     public TypeDecl type() {
        if(type_computed)
            return type_value;
        if(type_visited == boundariesCrossed)
            throw new RuntimeException("Circular definition of attr: type in class: ");
        type_visited = boundariesCrossed;
        int num = boundariesCrossed;
        boolean isFinal = this.is$Final();
        type_value = type_compute();
        if(isFinal && num == boundariesCrossed)
            type_computed = true;
        type_visited = -1;
        return type_value;
    }

    private TypeDecl type_compute() {
    if(getLeftOperand().type().isIntegralType() && getRightOperand().type().isIntegralType())
      // 15.22.1
      return getLeftOperand().type().binaryNumericPromotion(getRightOperand().type());
    else if(getLeftOperand().type().isBoolean() && getRightOperand().type().isBoolean())
      // 15.22.2
      return typeBoolean();
    return unknownType();
  }

public ASTNode rewriteTo() {
    return super.rewriteTo();
}

}