Module org.jruby.base

Package org.jruby.runtime.ivars

Class FieldVariableAccessor

java.lang.Object

org.jruby.runtime.ivars.VariableAccessor

org.jruby.runtime.ivars.FieldVariableAccessor

Direct Known Subclasses:

RawFieldVariableAccessor

public class FieldVariableAccessor
extends VariableAccessor

A variable accessor that accesses a field directly;

Field Summary

Fields

Modifier and Type	Field	Description
protected final MethodHandle	getter
protected final MethodHandle	setter

Fields inherited from class org.jruby.runtime.ivars.VariableAccessor

classId, DUMMY_ACCESSOR, index, name, realClass

Constructor Summary

Constructors

Constructor	Description
FieldVariableAccessor(RubyClass realClass, String name, int index, int classId, MethodHandle getter, MethodHandle setter)	Construct a new FieldVariableAccessor for the given "real" class, variable name, variable index, class ID, and field offset

Method Summary

Modifier and Type	Method	Description
FieldVariableAccessor	cloneFor(RubyClass newRealClass)
Object	get(Object object)	Retrieve the variable's value from the given object.
MethodHandle	getGetter()
IRubyObject	getOrNil(Object object, ThreadContext context)	Retrieve the variable's value from the given object.
MethodHandle	getSetter()
void	set(Object object, Object value)	Set this variable into the given object using Unsafe to ensure safe updating of the variable table.
protected MethodHandle	wrapSetter(MethodHandle setter)

Methods inherited from class org.jruby.runtime.ivars.VariableAccessor

getClassId, getIndex, getName, getOrUndefined, getVariable, toString, verify

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

getter

protected final MethodHandle getter

setter

protected final MethodHandle setter

Constructor Details

FieldVariableAccessor

public FieldVariableAccessor(RubyClass realClass,
 String name,
 int index,
 int classId,
 MethodHandle getter,
 MethodHandle setter)

Construct a new FieldVariableAccessor for the given "real" class, variable name, variable index, class ID, and field offset

Parameters:

realClass - the "real" class

name - the variable's name

index - the variable's index

classId - the class's ID

getter - the getter handle for the field

setter - the setter handle for the field

Method Details

cloneFor

public FieldVariableAccessor cloneFor(RubyClass newRealClass)

Overrides:

cloneFor in class VariableAccessor

wrapSetter

protected MethodHandle wrapSetter(MethodHandle setter)

getGetter

public MethodHandle getGetter()

getSetter

public MethodHandle getSetter()

get

public Object get(Object object)

Retrieve the variable's value from the given object.

Overrides:

get in class VariableAccessor

Parameters:

object - the object from which to retrieve this variable

Returns:

the variable's value

getOrNil

public IRubyObject getOrNil(Object object,
 ThreadContext context)

Retrieve the variable's value from the given object.

Overrides:

getOrNil in class VariableAccessor

Parameters:

object - the object from which to retrieve this variable

Returns:

the variable's value

set

public void set(Object object,
 Object value)

Set this variable into the given object using Unsafe to ensure safe updating of the variable table.

Overrides:

set in class VariableAccessor

Parameters:

object - the object into which to set this variable

value - the variable's value