org.jruby.ir.operands

Class UnexecutableNil

java.lang.Object

org.jruby.ir.operands.Operand

org.jruby.ir.operands.ImmutableLiteral

org.jruby.ir.operands.Nil

org.jruby.ir.operands.UnexecutableNil

public class UnexecutableNil
extends Nil

Field Summary

Fields

Modifier and Type	Field and Description
static UnexecutableNil	U_NIL

Fields inherited from class org.jruby.ir.operands.Operand

EMPTY_ARRAY

Constructor Summary

Constructors

Modifier	Constructor and Description
private	UnexecutableNil()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	retrieve(ThreadContext context, IRubyObject self, DynamicScope currDynScope, java.lang.Object[] temp) retrieve the live value represented by this immutable literal.
java.lang.String	toString()
void	visit(IRVisitor visitor)

Methods inherited from class org.jruby.ir.operands.Nil

createCacheObject

Methods inherited from class org.jruby.ir.operands.ImmutableLiteral

addUsedVariables, cachedObject, canCopyPropagate, cloneForInlining, hasKnownValue, isCached

Methods inherited from class org.jruby.ir.operands.Operand

fetchCompileTimeArrayElement, getSimplifiedOperand, getValue

Methods inherited from class java.lang.Object

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

Field Detail

U_NIL

public static final UnexecutableNil U_NIL

Constructor Detail

UnexecutableNil

private UnexecutableNil()

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class Nil

retrieve

public java.lang.Object retrieve(ThreadContext context,
                                 IRubyObject self,
                                 DynamicScope currDynScope,
                                 java.lang.Object[] temp)

Description copied from class: ImmutableLiteral

retrieve the live value represented by this immutable literal. An interesting property of knowing something cannot change at compile time is that all information neccesary to construct it is also known at compile time. We don't pre-create these since we don't want to assume the cost of constructing literals which may never be used.

Overrides:

retrieve in class ImmutableLiteral

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Nil