org.jruby.ir.instructions

Class JumpInstr

java.lang.Object

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.OneOperandInstr

org.jruby.ir.instructions.JumpInstr

All Implemented Interfaces:

FixedArityInstr, JumpTargetInstr

public class JumpInstr
extends OneOperandInstr
implements FixedArityInstr, JumpTargetInstr

Field Summary

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

EMPTY_OPERANDS

Constructor Summary

Constructors

Constructor and Description
JumpInstr(Label target)
JumpInstr(Label target, boolean exitsExcRegion)

Method Summary

Modifier and Type	Method and Description
Instr	clone(CloneInfo ii) 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).
static JumpInstr	decode(IRReaderDecoder d)
void	encode(IRWriterEncoder e)
boolean	exitsExcRegion()
Label	getJumpTarget()
void	visit(IRVisitor visitor)

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

getOperand1, getOperands, setOperand, setOperand1

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

canBeDeletedFromScope, canRaiseException, cloneOperands, computeScopeFlags, dumpableFields, getOperation, getUsedVariables, hasSideEffects, interpret, interpretAndGetNewIPC, isDead, isDeletable, markDead, renameVars, simplifyAndGetResult, simplifyOperands, toString, toStringNonOperandArgs, transfersControl

Methods inherited from class java.lang.Object

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

Constructor Detail

JumpInstr

public JumpInstr(Label target)

JumpInstr

public JumpInstr(Label target,
                 boolean exitsExcRegion)

Method Detail

exitsExcRegion

public boolean exitsExcRegion()

getJumpTarget

public Label getJumpTarget()

Specified by:

getJumpTarget in interface JumpTargetInstr

clone

public Instr clone(CloneInfo ii)

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 might renaming variables and labels to eliminate naming conflicts. The implementation might vary on the cloning mode.

Specified by:

clone in class Instr

Parameters:

ii - 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.

encode

public void encode(IRWriterEncoder e)

Overrides:

encode in class Instr

decode

public static JumpInstr decode(IRReaderDecoder d)

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Instr