org.jikesrvm.classloader

Class FieldReference

java.lang.Object

org.jikesrvm.classloader.MemberReference

org.jikesrvm.classloader.FieldReference

public final class FieldReference
extends MemberReference

A class to represent the reference in a class file to a field.

Field Summary

Fields

Modifier and Type	Field and Description
private TypeReference	fieldContentsType The field's type
private RVMField	resolvedMember The RVMField that this field reference resolved to (null if not yet resolved).

Fields inherited from class org.jikesrvm.classloader.MemberReference

descriptor, id, name, type

Constructor Summary

Constructors

Constructor and Description
FieldReference(TypeReference tr, Atom mn, Atom d, int id)

Method Summary

Modifier and Type	Method and Description
boolean	definitelyDifferent(FieldReference that) Do this and that definitely refer to different fields?
boolean	definitelySame(FieldReference that) Do this and that definitely refer to the same field?
TypeReference	getFieldContentsType()
int	getNumberOfStackSlots()
int	getSize()
boolean	isResolved()
RVMField	peekResolvedField() Find the RVMField that this field reference refers to using the search order specified in JVM spec 5.4.3.2.
RVMField	resolve() Find the RVMField that this field reference refers to using the search order specified in JVM spec 5.4.3.2.
private RVMField	resolveInternal(RVMClass declaringClass)
private RVMField	searchInterfaceFields(RVMClass c)
(package private) void	setResolvedMember(RVMField it)

Methods inherited from class org.jikesrvm.classloader.MemberReference

asFieldReference, asMethodReference, equals, findOrCreate, getDescriptor, getFieldRef, getId, getMemberRef, getMethodRef, getName, getNextId, getType, hashCode, isFieldReference, isMethodReference, needsDynamicLink, parse, parse, peekResolvedMember, resolveMember, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

fieldContentsType

private final TypeReference fieldContentsType

The field's type

resolvedMember

private RVMField resolvedMember

The RVMField that this field reference resolved to (null if not yet resolved).

Constructor Detail

FieldReference

FieldReference(TypeReference tr,
               Atom mn,
               Atom d,
               int id)

Parameters:

tr - a type reference

mn - the field or method name

d - the field or method descriptor

id - the new ID of the member were a new member required

Method Detail

getFieldContentsType

public TypeReference getFieldContentsType()

Returns:

the type of the field's value

getNumberOfStackSlots

public int getNumberOfStackSlots()

Returns:

number of stack slots that a value of this type takes

getSize

public int getSize()

Returns:

size of the field's value, in bytes.

definitelyDifferent

public boolean definitelyDifferent(FieldReference that)

Do this and that definitely refer to different fields?

Parameters:

that - the reference to compare with

Returns:

true if the fields are definitely different, false if it's not known (e.g. because at least one of the field references is unresolved)

definitelySame

public boolean definitelySame(FieldReference that)

Do this and that definitely refer to the same field?

Parameters:

that - the reference to compare with

Returns:

true if the fields are definitely the same, false if it's not known (e.g. because at least one of the field references is unresolved)

isResolved

public boolean isResolved()

Returns:

true if the field reference already been resolved into a target method

setResolvedMember

void setResolvedMember(RVMField it)

peekResolvedField

public RVMField peekResolvedField()

Find the RVMField that this field reference refers to using the search order specified in JVM spec 5.4.3.2.

Returns:

the RVMField that this method ref resolved to or null if it cannot be resolved.

resolve

public RVMField resolve()

Find the RVMField that this field reference refers to using the search order specified in JVM spec 5.4.3.2.

Returns:

the RVMField that this method ref resolved to.

resolveInternal

private RVMField resolveInternal(RVMClass declaringClass)

searchInterfaceFields

private RVMField searchInterfaceFields(RVMClass c)