primitiveclassinfo.java

已经移植好的java虚拟机

/*
 *	PrimitiveClassInfo.java	1.5	99/04/06 SMI
 *
 * Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved.
 *
 * This software is the confidential and proprietary information of Sun
 * Microsystems, Inc. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with Sun.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
 * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
 * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
 * THIS SOFTWARE OR ITS DERIVATIVES.
 * Use is subject to license terms.
 */

package vm;
import vm.Const;
import util.DataFormatException;
import components.*;
import jcc.Util;

/*
 * A primitive class
 *
 */

public
class PrimitiveClassInfo extends ClassInfo {

    public char signature;
    public int slotsize;
    public int elementsize;
    public int typecode;

    private PrimitiveClassInfo(String name, char signature, int typecode,
			       int slotsize, int elementsize, 
			       boolean verbosity, ConstantPool p) 
    {
        super(verbosity);
        UnicodeConstant uc = (UnicodeConstant)p.add(new UnicodeConstant(name));
	className = name;
	thisClass = new ClassConstant(uc);
	superClassInfo = lookupClass("java/lang/Object");
	superClass = superClassInfo.thisClass;
	this.signature = signature;
	this.typecode = typecode;
	this.slotsize = slotsize;
	this.elementsize = elementsize;
	access = Const.ACC_FINAL | Const.ACC_ABSTRACT | Const.ACC_PUBLIC; 
	constants = new ConstantObject[0];
	methods = new MethodInfo[0];
	fields  = new FieldInfo[0];
	enterClass(name);
    }

    public static void init(boolean v, ConstantPool p) { 

        (new PrimitiveClassInfo("void",    
	       Const.SIGC_VOID,    Const.T_VOID,    0, 0, v, p)).countReferences(false);
	(new PrimitiveClassInfo("boolean", 
	       Const.SIGC_BOOLEAN, Const.T_BOOLEAN, 4, 1, v, p)).countReferences(false);
	(new PrimitiveClassInfo("byte",    
	       Const.SIGC_BYTE,    Const.T_BYTE,    4, 1, v, p)).countReferences(false);
	(new PrimitiveClassInfo("char",
	       Const.SIGC_CHAR,    Const.T_CHAR,    4, 2, v, p)).countReferences(false);
	(new PrimitiveClassInfo("short",
	       Const.SIGC_SHORT,   Const.T_SHORT,   4, 2, v, p)).countReferences(false);
	(new PrimitiveClassInfo("int",  
	       Const.SIGC_INT,     Const.T_INT,     4, 4, v, p)).countReferences(false);
	(new PrimitiveClassInfo("long",   
	       Const.SIGC_LONG,    Const.T_LONG,    8, 8, v, p)).countReferences(false);
	(new PrimitiveClassInfo("float",
	       Const.SIGC_FLOAT,   Const.T_FLOAT,   4, 4, v, p)).countReferences(false);
	(new PrimitiveClassInfo("double", 
	       Const.SIGC_DOUBLE,  Const.T_DOUBLE,  8, 8, v, p)).countReferences(false);
    };

    protected String createGenericNativeName() { 
        return /*NOI18N*/"primitiveClass_" + 
	     Util.convertToClassName(className);
    }
}