org.jruby.ir.instructions.defined

Class GetBackrefInstr

java.lang.Object

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.defined.GetBackrefInstr

All Implemented Interfaces:

ResultInstr

public class GetBackrefInstr
extends Instr
implements ResultInstr

Field Summary

Fields

Modifier and Type	Field and Description
private Variable	result

Fields inherited from class org.jruby.ir.instructions.Instr

EMPTY_OPERANDS

Constructor Summary

Constructors

Constructor and Description
GetBackrefInstr(Variable result)

Method Summary

Modifier and Type	Method and Description
Instr	cloneForInlining(InlinerInfo inlinerInfo) Clone the instruction for use in an inlining context (either when a scope is inlined into another scope, or when a block has to be cloned because its associated call belongs to an inlined scope).
Operand[]	getOperands()
Variable	getResult()
java.lang.Object	interpret(ThreadContext context, DynamicScope currDynScope, IRubyObject self, java.lang.Object[] temp, Block block)
void	updateResult(Variable v)
void	visit(IRVisitor visitor)

Methods inherited from class org.jruby.ir.instructions.Instr

canBeDeleted, canRaiseException, cloneForBlockCloning, cloneForInlinedClosure, cloneForInlinedScope, getOperation, getUsedVariables, hasSideEffects, hasUnusedResult, interpretAndGetNewIPC, isDead, markDead, markUnusedResult, renameVars, simplifyAndGetResult, simplifyOperands, toString, transfersControl

Methods inherited from class java.lang.Object

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

Field Detail

result

private Variable result

Constructor Detail

GetBackrefInstr

public GetBackrefInstr(Variable result)

Method Detail

getOperands

public Operand[] getOperands()

Specified by:

getOperands in class Instr

getResult

public Variable getResult()

Specified by:

getResult in interface ResultInstr

updateResult

public void updateResult(Variable v)

Specified by:

updateResult in interface ResultInstr

cloneForInlining

public Instr cloneForInlining(InlinerInfo inlinerInfo)

Description copied from class: Instr

Clone the instruction for use in an inlining context (either when a scope is inlined into another scope, or when a block has to be cloned because its associated call belongs to an inlined scope). This requires renaming variables and labels to eliminate naming conflicts.

Overrides:

cloneForInlining in class Instr

Parameters:

inlinerInfo - This object manages renaming of variables and labels, handles args and return values.

Returns:

a new instruction that can be used in the target scope.

interpret

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

Overrides:

interpret in class Instr

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Instr