JML

org.multijava.util.classfile
Class ReferenceConstant

java.lang.Object
  extended byorg.multijava.util.classfile.PooledConstant
      extended byorg.multijava.util.classfile.ReferenceConstant
All Implemented Interfaces:
Constants
Direct Known Subclasses:
FieldRefConstant, InterfaceConstant, MethodRefConstant

public abstract class ReferenceConstant
extends PooledConstant

VMS 4.4.2: This class implements field/method/interface method reference constants.


Field Summary
private  ClassConstant clazz
           
private  NameAndTypeConstant nametype
           
private  byte tag
           
 
Fields inherited from class org.multijava.util.classfile.PooledConstant
 
Fields inherited from interface org.multijava.util.classfile.Constants
ACC_ABSTRACT, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_VOLATILE, ACCESS_FLAG_ARRAY, ACCESS_FLAG_NAMES, ATT_ANCHOR, ATT_BRIDGE, ATT_CODE, ATT_CONSTANTVALUE, ATT_DEPRECATED, ATT_DISPATCHER, ATT_EXCEPTIONS, ATT_GENERIC, ATT_GENERIC_FUNCTIONS, ATT_INNERCLASSES, ATT_LINENUMBERTABLE, ATT_LOCALVARIABLETABLE, ATT_MM_BODY, ATT_REDIRECTOR, ATT_RMJ_GLUE, ATT_RMJ_SIGNATURE, ATT_RUNTIME_VISIBLE_ANNOTATIONS, ATT_RUNTIME_VISIBLE_PARAMETER_ANNOTATIONS, ATT_SIGNATURE, ATT_SOURCEFILE, ATT_SYNTHETIC, ATT_UNIVERSE_FIELD, ATT_UNIVERSE_METHOD, ATT_UNIVERSE_VERSION, CST_CLASS, CST_DOUBLE, CST_FIELD, CST_FLOAT, CST_INTEGER, CST_INTERFACEMETHOD, CST_LONG, CST_METHOD, CST_NAMEANDTYPE, CST_STRING, CST_UTF8, ENV_DEBUG_MODE, ENV_USE_CACHE, JAVA_MAGIC, JAVA_MAJOR, JAVA_MINOR, MAX_CODE_PER_METHOD, opc_aaload, opc_aastore, opc_aconst_null, opc_aload, opc_aload_0, opc_aload_1, opc_aload_2, opc_aload_3, opc_anewarray, opc_areturn, opc_arraylength, opc_astore, opc_astore_0, opc_astore_1, opc_astore_2, opc_astore_3, opc_athrow, opc_baload, opc_bastore, opc_bipush, opc_caload, opc_castore, opc_checkcast, opc_d2f, opc_d2i, opc_d2l, opc_dadd, opc_daload, opc_dastore, opc_dcmpg, opc_dcmpl, opc_dconst_0, opc_dconst_1, opc_ddiv, opc_dload, opc_dload_0, opc_dload_1, opc_dload_2, opc_dload_3, opc_dmul, opc_dneg, opc_drem, opc_dreturn, opc_dstore, opc_dstore_0, opc_dstore_1, opc_dstore_2, opc_dstore_3, opc_dsub, opc_dup, opc_dup2, opc_dup2_x1, opc_dup2_x2, opc_dup_x1, opc_dup_x2, opc_f2d, opc_f2i, opc_f2l, opc_fadd, opc_faload, opc_fastore, opc_fcmpg, opc_fcmpl, opc_fconst_0, opc_fconst_1, opc_fconst_2, opc_fdiv, opc_fload, opc_fload_0, opc_fload_1, opc_fload_2, opc_fload_3, opc_fmul, opc_fneg, opc_frem, opc_freturn, opc_fstore, opc_fstore_0, opc_fstore_1, opc_fstore_2, opc_fstore_3, opc_fsub, opc_getfield, opc_getstatic, opc_goto, opc_goto_w, opc_i2b, opc_i2c, opc_i2d, opc_i2f, opc_i2l, opc_i2s, opc_iadd, opc_iaload, opc_iand, opc_iastore, opc_iconst_0, opc_iconst_1, opc_iconst_2, opc_iconst_3, opc_iconst_4, opc_iconst_5, opc_iconst_m1, opc_idiv, opc_if_acmpeq, opc_if_acmpne, opc_if_icmpeq, opc_if_icmpge, opc_if_icmpgt, opc_if_icmple, opc_if_icmplt, opc_if_icmpne, opc_ifeq, opc_ifge, opc_ifgt, opc_ifle, opc_iflt, opc_ifne, opc_ifnonnull, opc_ifnull, opc_iinc, opc_iload, opc_iload_0, opc_iload_1, opc_iload_2, opc_iload_3, opc_imul, opc_ineg, opc_instanceof, opc_invokeinterface, opc_invokespecial, opc_invokestatic, opc_invokevirtual, opc_ior, opc_irem, opc_ireturn, opc_ishl, opc_ishr, opc_istore, opc_istore_0, opc_istore_1, opc_istore_2, opc_istore_3, opc_isub, opc_iushr, opc_ixor, opc_jsr, opc_jsr_w, opc_l2d, opc_l2f, opc_l2i, opc_ladd, opc_laload, opc_land, opc_lastore, opc_lcmp, opc_lconst_0, opc_lconst_1, opc_ldc, opc_ldc2_w, opc_ldc_w, opc_ldiv, opc_lload, opc_lload_0, opc_lload_1, opc_lload_2, opc_lload_3, opc_lmul, opc_lneg, opc_lookupswitch, opc_lor, opc_lrem, opc_lreturn, opc_lshl, opc_lshr, opc_lstore, opc_lstore_0, opc_lstore_1, opc_lstore_2, opc_lstore_3, opc_lsub, opc_lushr, opc_lxor, opc_monitorenter, opc_monitorexit, opc_multianewarray, opc_new, opc_newarray, opc_nop, opc_pop, opc_pop2, opc_putfield, opc_putstatic, opc_ret, opc_return, opc_saload, opc_sastore, opc_sipush, opc_swap, opc_tableswitch, opc_wide, opc_xxxunusedxxx, POO_ASCII_CONSTANT, POO_CLASS_CONSTANT, POO_DOUBLE_CONSTANT, POO_FLOAT_CONSTANT, POO_INTEGER_CONSTANT, POO_LONG_CONSTANT, POO_NAT_CONSTANT, POO_REF_CONSTANT, POO_STRING_CONSTANT, TYP_ADDRESS, TYP_DOUBLE, TYP_FLOAT, TYP_INT, TYP_LONG, TYP_REFERENCE, TYP_VOID
 
Constructor Summary
ReferenceConstant(byte tag, String name, String type)
          Constructs a new reference constant.
ReferenceConstant(byte tag, String owner, String name, String type)
          Constructs a new reference constant.
ReferenceConstant(byte tag, ClassConstant clazz, NameAndTypeConstant nametype)
          Constructs a reference constant.
 
Method Summary
 boolean equals(Object o)
          equals (an exact comparison) ASSERT: this.hashCode == o.hashCode ===> cast
 String getClassName()
          Returns the name of this constant
(package private)  Object getLiteral()
          Returns the associated literal: this constant type has none
 String getName()
          Returns the name of this constant
 String getType()
          Returns the name of this constant
 String getTypeName()
          Returns the name of this constant
 int hashCode()
          hashCode (a fast comparison) CONVENTION: return XXXXXXXXXXXX << 4 + Y with Y = ident of the type of the pooled constant
(package private)  void resolveConstants(ConstantPool cp)
          Insert or check location of constant value on constant pool
(package private)  void resolveConstants(PooledConstant pc)
          Check location of constant value on constant pool
 void setTypeName(String name)
          Returns the name of this constant
(package private)  void write(ConstantPool cp, DataOutput out)
          Write this class into the the file (out) getting data position from the constant pool
 
Methods inherited from class org.multijava.util.classfile.PooledConstant
getIndex, getSlotsUsed, setIndex, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

tag

private byte tag

clazz

private ClassConstant clazz

nametype

private NameAndTypeConstant nametype
Constructor Detail

ReferenceConstant

public ReferenceConstant(byte tag,
                         String name,
                         String type)
Constructs a new reference constant.

Parameters:
tag - the constant type tag
name - the qualified name of the referenced object
type - the signature of the referenced object

ReferenceConstant

public ReferenceConstant(byte tag,
                         String owner,
                         String name,
                         String type)
Constructs a new reference constant.

Parameters:
tag - the constant type tag
owner - the qualified name of the class conatining the reference
name - the qualified name of the referenced object
type - the signature of the referenced object

ReferenceConstant

public ReferenceConstant(byte tag,
                         ClassConstant clazz,
                         NameAndTypeConstant nametype)
Constructs a reference constant.

Parameters:
tag - the constant type tag
clazz - the class that defines the referenced object
nametype - the simple name and signature of the referenced object
Method Detail

getLiteral

Object getLiteral()
Returns the associated literal: this constant type has none


getName

public String getName()
Returns the name of this constant


getClassName

public String getClassName()
Returns the name of this constant


getTypeName

public String getTypeName()
Returns the name of this constant


setTypeName

public void setTypeName(String name)
Returns the name of this constant


getType

public String getType()
Returns the name of this constant


hashCode

public final int hashCode()
hashCode (a fast comparison) CONVENTION: return XXXXXXXXXXXX << 4 + Y with Y = ident of the type of the pooled constant

Specified by:
hashCode in class PooledConstant

equals

public final boolean equals(Object o)
equals (an exact comparison) ASSERT: this.hashCode == o.hashCode ===> cast

Specified by:
equals in class PooledConstant

resolveConstants

void resolveConstants(ConstantPool cp)
Insert or check location of constant value on constant pool

Parameters:
cp - the constant pool for this class

resolveConstants

final void resolveConstants(PooledConstant pc)
Check location of constant value on constant pool

Parameters:
pc - the already in pooled constant ASSERT pc.getClass() == this.getClass()

write

void write(ConstantPool cp,
           DataOutput out)
     throws IOException
Write this class into the the file (out) getting data position from the constant pool

Parameters:
cp - the constant pool that contain all data
out - the file where to write this object info
Throws:
IOException - an io problem has occured

JML

JML is Copyright (C) 1998-2002 by Iowa State University and is distributed under the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This release depends on code from the MultiJava project and is based in part on the Kopi project Copyright (C) 1990-99 DMS Decision Management Systems Ges.m.b.H.