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java.lang.Objectorg.jruby.internal.runtime.methods.DynamicMethod
org.jruby.internal.runtime.methods.UndefinedMethod
public class UndefinedMethod
This class represents a singleton type of method used as a marker for missing or "undef'ed" methods. Only one instance is ever created, and it can't be invoked.
Field Summary | |
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static UndefinedMethod |
INSTANCE
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Fields inherited from class org.jruby.internal.runtime.methods.DynamicMethod |
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callConfig, implementationClass, protectedClass, visibility |
Method Summary | |
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IRubyObject |
call(ThreadContext context,
IRubyObject self,
RubyModule klazz,
java.lang.String name,
IRubyObject[] args,
Block block)
The one implementation of call, which throws an exception because UndefinedMethod can't be invoked. |
DynamicMethod |
dup()
A dummy implementation of dup that just returns the singleton instance. |
static UndefinedMethod |
getInstance()
Retrieve the singleton instance. |
boolean |
isCallableFrom(IRubyObject caller,
CallType callType)
UndefinedMethod is always visible because it's only used as a marker for missing or undef'ed methods. |
void |
setCallConfig(CallConfiguration callConfig)
Dummy implementation of setCallConfig that does nothing. |
void |
setImplementationClass(RubyModule implClass)
Dummy override of setImplementationClass that does nothing. |
void |
setVisibility(Visibility visibility)
Dummy implementation of setVisibility that does nothing. |
Methods inherited from class org.jruby.internal.runtime.methods.DynamicMethod |
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calculateProtectedClass, call, call, call, call, call, call, call, call, call, getArity, getCallConfig, getImplementationClass, getProtectedClass, getRealMethod, getVisibility, handleRedo, handleReturn, init, isNative, isUndefined |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final UndefinedMethod INSTANCE
Method Detail |
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public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, java.lang.String name, IRubyObject[] args, Block block)
call
in class DynamicMethod
context
- The thread context for the currently executing threadself
- The 'self' or 'receiver' object to use for this callname
- The incoming name used to invoke this methodargs
- The argument list to this invocationblock
- The block passed to this invocation
DynamicMethod.call
public DynamicMethod dup()
dup
in class DynamicMethod
public static UndefinedMethod getInstance()
public void setImplementationClass(RubyModule implClass)
setImplementationClass
in class DynamicMethod
implClass
- Ignoredpublic void setVisibility(Visibility visibility)
setVisibility
in class DynamicMethod
visibility
- Ignoredpublic void setCallConfig(CallConfiguration callConfig)
setCallConfig
in class DynamicMethod
callConfig
- Ignoredpublic boolean isCallableFrom(IRubyObject caller, CallType callType)
isCallableFrom
in class DynamicMethod
caller
- The calling objectcallType
- The type of call
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