Package org.jruby.ir.operands

Class Bignum

java.lang.Object

org.jruby.ir.operands.Operand

org.jruby.ir.operands.ImmutableLiteral

org.jruby.ir.operands.Bignum

public class Bignum
extends ImmutableLiteral

Represents a literal Bignum. We cache the value so that when the same Bignum Operand is copy-propagated across multiple instructions, the same RubyBignum object is created. In a ddition, the same constant across loops should be the same object. So, in this example, the output should be false, true, true

   n = 0
   olda = nil
   while (n < 3)
     a = 81402749386839761113321
     p a.equal?(olda)
     olda = a
     n += 1
   end
 

Field Summary

Fields

Modifier and Type	Field	Description
final BigInteger	value

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

EMPTY_ARRAY

Constructor Summary

Constructors

Constructor	Description
Bignum(BigInteger value)

Method Summary

Modifier and Type	Method	Description
Object	createCacheObject(ThreadContext context)	Implementing class is responsible for constructing the cached value.
static Bignum	decode(IRReaderDecoder d)
void	encode(IRWriterEncoder e)
OperandType	getOperandType()
boolean	isTruthyImmediate()	Returns true if this is an immediate value that will always be considered truthy (true, numbers, etc)
String	toString()
void	visit(IRVisitor visitor)

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

addUsedVariables, cachedObject, canCopyPropagate, cloneForInlining, hasKnownValue, isCached, retrieve

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

getSimplifiedOperand, getValue, isFalseyImmediate

Methods inherited from class java.lang.Object

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

Field Details

value

public final BigInteger value

Constructor Details

Bignum

public Bignum(BigInteger value)

Method Details

getOperandType

public OperandType getOperandType()

Specified by:

getOperandType in class Operand

createCacheObject

public Object createCacheObject(ThreadContext context)

Description copied from class: ImmutableLiteral

Implementing class is responsible for constructing the cached value.

Specified by:

createCacheObject in class ImmutableLiteral

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Operand

encode

public void encode(IRWriterEncoder e)

Overrides:

encode in class Operand

decode

public static Bignum decode(IRReaderDecoder d)

toString

public String toString()

Overrides:

toString in class Object

isTruthyImmediate

public boolean isTruthyImmediate()

Description copied from class: Operand

Returns true if this is an immediate value that will always be considered truthy (true, numbers, etc)

Overrides:

isTruthyImmediate in class Operand

Returns: