Package org.jruby.runtime.callsite

Class CachingCallSite

java.lang.Object

org.jruby.runtime.CallSite

org.jruby.runtime.callsite.CachingCallSite

Direct Known Subclasses:

CmpCallSite, DivCallSite, EqCallSite, FunctionalCachingCallSite, GeCallSite, GtCallSite, LeCallSite, LtCallSite, MinusCallSite, ModCallSite, MonomorphicCallSite, MulCallSite, NormalCachingCallSite, NotEqCallSite, PlusCallSite, ProfilingCachingCallSite, RefinedCachingCallSite, VariableCachingCallSite

public abstract class CachingCallSite
extends CallSite

Field Summary

Fields

Modifier and Type	Field	Description
protected CacheEntry	builtinCache	Deprecated.
protected CacheEntry	cache

Fields inherited from class org.jruby.runtime.CallSite

callType, methodName

Constructor Summary

Constructors

Constructor	Description
CachingCallSite(String methodName, CallType callType)

Method Summary

Modifier and Type	Method	Description
protected IRubyObject	cacheAndCall(ThreadContext context, IRubyObject caller, IRubyObject self, RubyClass selfType)
protected IRubyObject	cacheAndCall(ThreadContext context, IRubyObject caller, IRubyObject self, RubyClass selfType, Block block)
protected IRubyObject	cacheAndCall(ThreadContext context, IRubyObject caller, IRubyObject self, RubyClass selfType, Block block, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3)
protected IRubyObject	cacheAndCall(ThreadContext context, IRubyObject caller, IRubyObject self, RubyClass selfType, IRubyObject arg)
protected IRubyObject	cacheAndCall(ThreadContext context, IRubyObject caller, IRubyObject self, RubyClass selfType, IRubyObject[] args)
protected IRubyObject	cacheAndCall(ThreadContext context, IRubyObject caller, IRubyObject self, RubyClass selfType, IRubyObject[] args, Block block)
protected IRubyObject	cacheAndCall(ThreadContext context, IRubyObject caller, IRubyObject self, RubyClass selfType, IRubyObject arg, Block block)
protected IRubyObject	cacheAndCall(ThreadContext context, IRubyObject caller, IRubyObject self, RubyClass selfType, IRubyObject arg1, IRubyObject arg2)
protected IRubyObject	cacheAndCall(ThreadContext context, IRubyObject caller, IRubyObject self, RubyClass selfType, IRubyObject arg1, IRubyObject arg2, Block block)
protected IRubyObject	cacheAndCall(ThreadContext context, IRubyObject caller, IRubyObject self, RubyClass selfType, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3)
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self)	Call the site's method against the target object passing no args.
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self, double flote)	Call the site's method against the target object, passing a literal double value.
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self, long fixnum)	Call the site's method against the target object, passing a literal long value.
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self, Block block)	Call the site's method against the target object passing no arguments and a non-literal (block pass, &) block.
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg1)	Call the site's method against the target object passing one argument.
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject... args)	Call the site's method against the target object passing arguments.
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject[] args, Block block)	Call the site's method against the target object passing one argument and a non-literal (block pass, &) block.
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg1, Block block)	Call the site's method against the target object passing one argument and a non-literal (block pass, &) block.
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg1, IRubyObject arg2)	Call the site's method against the target object passing two arguments.
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg1, IRubyObject arg2, Block block)	Call the site's method against the target object passing two arguments and a non-literal (block pass, &) block.
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3)	Call the site's method against the target object passing two arguments.
IRubyObject	call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3, Block block)	Call the site's method against the target object passing three arguments and a non-literal (block pass, &) block.
final IRubyObject	callIter(ThreadContext context, IRubyObject caller, IRubyObject self, Block block)	Call the site's method against the target object passing no arguments and a literal block.
IRubyObject	callIter(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject[] args, Block block)	Call the site's method against the target object passing arguments and a literal block.
IRubyObject	callIter(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg1, Block block)	Call the site's method against the target object passing one argument and a literal block.
final IRubyObject	callIter(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg1, IRubyObject arg2, Block block)	Call the site's method against the target object passing two arguments and a literal block.
final IRubyObject	callIter(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3, Block block)	Call the site's method against the target object passing three arguments and a literal block.
final IRubyObject	callVarargs(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject... args)	Call the site's method against the target object passing arguments.
final IRubyObject	callVarargs(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject[] args, Block block)	Call the site's method against the target object passing one argument and a non-literal (block pass, &) block.
final IRubyObject	callVarargsIter(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject[] args, Block block)	Call the site's method against the target object passing arguments and a literal block.
IRubyObject	fcall(ThreadContext context, IRubyObject self)
IRubyObject	fcall(ThreadContext context, IRubyObject self, Block block)
IRubyObject	fcall(ThreadContext context, IRubyObject self, IRubyObject arg1)
IRubyObject	fcall(ThreadContext context, IRubyObject self, IRubyObject... args)
IRubyObject	fcall(ThreadContext context, IRubyObject self, IRubyObject[] args, Block block)
IRubyObject	fcall(ThreadContext context, IRubyObject self, IRubyObject arg1, Block block)
IRubyObject	fcall(ThreadContext context, IRubyObject self, IRubyObject arg1, IRubyObject arg2)
IRubyObject	fcall(ThreadContext context, IRubyObject self, IRubyObject arg1, IRubyObject arg2, Block block)
IRubyObject	fcall(ThreadContext context, IRubyObject self, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3)
IRubyObject	fcall(ThreadContext context, IRubyObject self, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3, Block block)
final IRubyObject	fcallIter(ThreadContext context, IRubyObject self, Block block)
IRubyObject	fcallIter(ThreadContext context, IRubyObject self, IRubyObject[] args, Block block)
IRubyObject	fcallIter(ThreadContext context, IRubyObject self, IRubyObject arg1, Block block)
final IRubyObject	fcallIter(ThreadContext context, IRubyObject self, IRubyObject arg1, IRubyObject arg2, Block block)
final IRubyObject	fcallIter(ThreadContext context, IRubyObject self, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3, Block block)
final IRubyObject	fcallVarargs(ThreadContext context, IRubyObject self, IRubyObject... args)
final IRubyObject	fcallVarargs(ThreadContext context, IRubyObject self, IRubyObject[] args, Block block)
final IRubyObject	fcallVarargsIter(ThreadContext context, IRubyObject self, IRubyObject[] args, Block block)
final CacheEntry	getCache()
final int	getCachedClassIndex()
final long	getCachedMethodSerial()
protected static RubyClass	getClass(IRubyObject self)
final String	getMethodName()
final boolean	isBuiltin(RubyClass selfType)
boolean	isBuiltin(IRubyObject self)
final boolean	isOptimizable()
protected boolean	methodMissing(DynamicMethod method, IRubyObject caller)
final CacheEntry	retrieveCache(RubyClass selfType)
final CacheEntry	retrieveCache(RubyClass selfType, String methodName)	Deprecated.
final CacheEntry	retrieveCache(IRubyObject self)
protected CacheEntry	setCache(CacheEntry entry, IRubyObject self)

Methods inherited from class org.jruby.runtime.CallSite

fcall, fcall, toString

Methods inherited from class java.lang.Object

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

Field Details

cache

protected CacheEntry cache

builtinCache

@Deprecated
protected CacheEntry builtinCache

Deprecated.

Constructor Details

CachingCallSite

public CachingCallSite(String methodName,
 CallType callType)

Method Details

getCache

public final CacheEntry getCache()

setCache

protected CacheEntry setCache(CacheEntry entry,
 IRubyObject self)

isOptimizable

public final boolean isOptimizable()

getCachedClassIndex

public final int getCachedClassIndex()

getMethodName

public final String getMethodName()

getCachedMethodSerial

public final long getCachedMethodSerial()

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 long fixnum)

Description copied from class: CallSite

Call the site's method against the target object, passing a literal long value.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

fixnum - the literal long value to pass

Returns:

the result of the call

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 double flote)

Description copied from class: CallSite

Call the site's method against the target object, passing a literal double value.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

flote - the literal double value to pass

Returns:

the result of the call

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject... args)

Description copied from class: CallSite

Call the site's method against the target object passing arguments.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

args - the arguments to pass

Returns:

the result of the call

fcall

public IRubyObject fcall(ThreadContext context,
 IRubyObject self,
 IRubyObject... args)

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject[] args,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing one argument and a non-literal (block pass, &) block.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

args - the arguments to pass

block - the block argument to pass

Returns:

the result of the call

fcall

public IRubyObject fcall(ThreadContext context,
 IRubyObject self,
 IRubyObject[] args,
 Block block)

callIter

public IRubyObject callIter(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject[] args,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing arguments and a literal block. This version handles break jumps by returning their value if this is the appropriate place in the call stack to do so.

Specified by:

callIter in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

args - the arguments to pass

block - the literal block to pass

Returns:

the result of the call

fcallIter

public IRubyObject fcallIter(ThreadContext context,
 IRubyObject self,
 IRubyObject[] args,
 Block block)

callVarargs

public final IRubyObject callVarargs(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject... args)

Description copied from class: CallSite

Call the site's method against the target object passing arguments. As a "varargs" method, this will use the length of the args array to dispatch to the correct arity call, rather than dispatching unconditionally to the IRubyObject[] path.

Specified by:

callVarargs in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

args - the arguments to pass

Returns:

the result of the call

fcallVarargs

public final IRubyObject fcallVarargs(ThreadContext context,
 IRubyObject self,
 IRubyObject... args)

callVarargs

public final IRubyObject callVarargs(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject[] args,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing one argument and a non-literal (block pass, &) block. As a "varargs" method, this will use the length of the args array to dispatch to the correct arity call, rather than dispatching unconditionally to the IRubyObject[] path.

Specified by:

callVarargs in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

args - the arguments to pass

block - the block argument to pass

Returns:

the result of the call

fcallVarargs

public final IRubyObject fcallVarargs(ThreadContext context,
 IRubyObject self,
 IRubyObject[] args,
 Block block)

callVarargsIter

public final IRubyObject callVarargsIter(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject[] args,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing arguments and a literal block. This version handles break jumps by returning their value if this is the appropriate place in the call stack to do so. As a "varargs" method, this will use the length of the args array to dispatch to the correct arity call, rather than dispatching unconditionally to the IRubyObject[] path.

Specified by:

callVarargsIter in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

args - the arguments to pass

block - the literal block to pass

Returns:

the result of the call

fcallVarargsIter

public final IRubyObject fcallVarargsIter(ThreadContext context,
 IRubyObject self,
 IRubyObject[] args,
 Block block)

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self)

Description copied from class: CallSite

Call the site's method against the target object passing no args.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

Returns:

the result of the call

fcall

public IRubyObject fcall(ThreadContext context,
 IRubyObject self)

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing no arguments and a non-literal (block pass, &) block.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

block - the block argument to pass

Returns:

the result of the call

fcall

public IRubyObject fcall(ThreadContext context,
 IRubyObject self,
 Block block)

callIter

public final IRubyObject callIter(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing no arguments and a literal block. This version handles break jumps by returning their value if this is the appropriate place in the call stack to do so.

Specified by:

callIter in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

block - the literal block to pass

Returns:

the result of the call

fcallIter

public final IRubyObject fcallIter(ThreadContext context,
 IRubyObject self,
 Block block)

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject arg1)

Description copied from class: CallSite

Call the site's method against the target object passing one argument.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

arg1 - the argument to pass

Returns:

the result of the call

fcall

public IRubyObject fcall(ThreadContext context,
 IRubyObject self,
 IRubyObject arg1)

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject arg1,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing one argument and a non-literal (block pass, &) block.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

arg1 - the argument to pass

block - the block argument to pass

Returns:

the result of the call

fcall

public IRubyObject fcall(ThreadContext context,
 IRubyObject self,
 IRubyObject arg1,
 Block block)

callIter

public IRubyObject callIter(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject arg1,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing one argument and a literal block. This version handles break jumps by returning their value if this is the appropriate place in the call stack to do so.

Specified by:

callIter in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

arg1 - the argument to pass

block - the literal block to pass

Returns:

the result of the call

fcallIter

public IRubyObject fcallIter(ThreadContext context,
 IRubyObject self,
 IRubyObject arg1,
 Block block)

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2)

Description copied from class: CallSite

Call the site's method against the target object passing two arguments.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

arg1 - the first argument to pass

arg2 - the second argument to pass

Returns:

the result of the call

fcall

public IRubyObject fcall(ThreadContext context,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2)

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing two arguments and a non-literal (block pass, &) block.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

arg1 - the first argument to pass

arg2 - the second argument to pass

block - the block argument to pass

Returns:

the result of the call

fcall

public IRubyObject fcall(ThreadContext context,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2,
 Block block)

callIter

public final IRubyObject callIter(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing two arguments and a literal block. This version handles break jumps by returning their value if this is the appropriate place in the call stack to do so.

Specified by:

callIter in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

arg1 - the first argument to pass

arg2 - the second argument to pass

block - the literal block to pass

Returns:

the result of the call

fcallIter

public final IRubyObject fcallIter(ThreadContext context,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2,
 Block block)

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2,
 IRubyObject arg3)

Description copied from class: CallSite

Call the site's method against the target object passing two arguments.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

arg1 - the first argument to pass

arg2 - the second argument to pass

arg3 - the third argument to pass

Returns:

the result of the call

fcall

public IRubyObject fcall(ThreadContext context,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2,
 IRubyObject arg3)

call

public IRubyObject call(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2,
 IRubyObject arg3,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing three arguments and a non-literal (block pass, &) block.

Specified by:

call in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

arg1 - the first argument to pass

arg2 - the second argument to pass

arg3 - the third argument to pass

block - the block argument to pass

Returns:

the result of the call

fcall

public IRubyObject fcall(ThreadContext context,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2,
 IRubyObject arg3,
 Block block)

callIter

public final IRubyObject callIter(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2,
 IRubyObject arg3,
 Block block)

Description copied from class: CallSite

Call the site's method against the target object passing three arguments and a literal block. This version handles break jumps by returning their value if this is the appropriate place in the call stack to do so.

Specified by:

callIter in class CallSite

Parameters:

context - the ThreadContext for the current thread

caller - the caller, for visibility checks

self - the target object to call against

arg1 - the first argument to pass

arg2 - the second argument to pass

arg3 - the third argument to pass

block - the literal block to pass

Returns:

the result of the call

fcallIter

public final IRubyObject fcallIter(ThreadContext context,
 IRubyObject self,
 IRubyObject arg1,
 IRubyObject arg2,
 IRubyObject arg3,
 Block block)

retrieveCache

public final CacheEntry retrieveCache(IRubyObject self)

retrieveCache

public final CacheEntry retrieveCache(RubyClass selfType)

retrieveCache

@Deprecated
public final CacheEntry retrieveCache(RubyClass selfType,
 String methodName)

Deprecated.

isBuiltin

public boolean isBuiltin(IRubyObject self)

isBuiltin

public final boolean isBuiltin(RubyClass selfType)

cacheAndCall

protected IRubyObject cacheAndCall(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 RubyClass selfType,
 IRubyObject[] args,
 Block block)

cacheAndCall

protected IRubyObject cacheAndCall(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 RubyClass selfType,
 IRubyObject[] args)

cacheAndCall

protected IRubyObject cacheAndCall(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 RubyClass selfType)

cacheAndCall

protected IRubyObject cacheAndCall(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 RubyClass selfType,
 Block block)

cacheAndCall

protected IRubyObject cacheAndCall(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 RubyClass selfType,
 IRubyObject arg)

cacheAndCall

protected IRubyObject cacheAndCall(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 RubyClass selfType,
 IRubyObject arg,
 Block block)

cacheAndCall

protected IRubyObject cacheAndCall(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 RubyClass selfType,
 IRubyObject arg1,
 IRubyObject arg2)

cacheAndCall

protected IRubyObject cacheAndCall(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 RubyClass selfType,
 IRubyObject arg1,
 IRubyObject arg2,
 Block block)

cacheAndCall

protected IRubyObject cacheAndCall(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 RubyClass selfType,
 IRubyObject arg1,
 IRubyObject arg2,
 IRubyObject arg3)

cacheAndCall

protected IRubyObject cacheAndCall(ThreadContext context,
 IRubyObject caller,
 IRubyObject self,
 RubyClass selfType,
 Block block,
 IRubyObject arg1,
 IRubyObject arg2,
 IRubyObject arg3)

methodMissing

protected boolean methodMissing(DynamicMethod method,
 IRubyObject caller)

getClass

protected static RubyClass getClass(IRubyObject self)