org.jruby.ir.operands

Class ScopeModule

java.lang.Object

org.jruby.ir.operands.Operand

org.jruby.ir.operands.ScopeModule

public class ScopeModule
extends Operand

Wrap a scope for the purpose of finding live module which happens to be associated with it.

Field Summary

Fields

Modifier and Type	Field and Description
static ScopeModule[]	SCOPE_MODULE

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

EMPTY_ARRAY

Constructor Summary

Constructors

Constructor and Description
ScopeModule(int scopeModuleDepth)

Method Summary

Methods

Modifier and Type	Method and Description
void	addUsedVariables(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(CloneInfo ii)
static ScopeModule	decode(IRReaderDecoder d)
void	encode(IRWriterEncoder e)
boolean	equals(Object other)
int	getScopeModuleDepth()
int	hashCode()
static ScopeModule	ModuleFor(int depth)
Object	retrieve(ThreadContext context, IRubyObject self, StaticScope currScope, DynamicScope currDynScope, Object[] temp)
String	toString()
void	visit(IRVisitor visitor)

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

getOperandType, getSimplifiedOperand, getValue, hasKnownValue

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

SCOPE_MODULE

public static final ScopeModule[] SCOPE_MODULE

Constructor Detail

ScopeModule

public ScopeModule(int scopeModuleDepth)

Method Detail

ModuleFor

public static ScopeModule ModuleFor(int depth)

addUsedVariables

public void addUsedVariables(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(CloneInfo ii)

Specified by:

cloneForInlining in class Operand

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getScopeModuleDepth

public int getScopeModuleDepth()

equals

public boolean equals(Object other)

Overrides:

equals in class Object

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 String toString()

Overrides:

toString in class Object

retrieve

public Object retrieve(ThreadContext context,
              IRubyObject self,
              StaticScope currScope,
              DynamicScope currDynScope,
              Object[] temp)

Overrides:

retrieve in class Operand

encode

public void encode(IRWriterEncoder e)

Overrides:

encode in class Operand

decode

public static ScopeModule decode(IRReaderDecoder d)

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Operand