org.jruby.ir.operands

Class CurrentScope

java.lang.Object

org.jruby.ir.operands.Operand

org.jruby.ir.operands.CurrentScope

public class CurrentScope
extends Operand

Field Summary

Fields

Modifier and Type	Field and Description
private IRScope	scope

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

EMPTY_ARRAY

Constructor Summary

Constructors

Constructor and Description
CurrentScope(IRScope scope)

Method Summary

Modifier and Type	Method and Description
void	addUsedVariables(java.util.List<Variable> l) Append the list of variables used in this operand to the input list -- force every operand to implement this because a missing implementation can cause bad failures.
boolean	canCopyPropagate() Can we replace every use of a variable 'v' that contains the value of this operand with the operand itself? This takes importance when there are at least two uses of 'v' within this scope.
Operand	cloneForInlining(InlinerInfo ii)
IRScope	getScope()
java.lang.Object	retrieve(ThreadContext context, IRubyObject self, DynamicScope currDynScope, java.lang.Object[] temp)
java.lang.String	toString()
void	visit(IRVisitor visitor)

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

fetchCompileTimeArrayElement, getSimplifiedOperand, getValue, hasKnownValue

Methods inherited from class java.lang.Object

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

Field Detail

scope

private final IRScope scope

Constructor Detail

CurrentScope

public CurrentScope(IRScope scope)

Method Detail

addUsedVariables

public void addUsedVariables(java.util.List<Variable> l)

Description copied from class: Operand

Append the list of variables used in this operand to the input list -- force every operand to implement this because a missing implementation can cause bad failures.

Specified by:

addUsedVariables in class Operand

cloneForInlining

public Operand cloneForInlining(InlinerInfo ii)

Specified by:

cloneForInlining in class Operand

getScope

public IRScope getScope()

canCopyPropagate

public boolean canCopyPropagate()

Description copied from class: Operand

Can we replace every use of a variable 'v' that contains the value of this operand with the operand itself? This takes importance when there are at least two uses of 'v' within this scope. Ex: v = [1,2,3]; x = v; y = v In this case, we cannot replace the occurences of 'v' because we would then get x = [1,2,3]; y = [1,2,3] which would then result in two different array objects being constructed instead of a single one.

Overrides:

canCopyPropagate in class Operand

Returns:

true if it is safe to copy-propagate the operand.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

retrieve

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

Overrides:

retrieve in class Operand

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Operand