org.jruby.ir.instructions

Class ReceiveExceptionInstr

java.lang.Object

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.ReceiveExceptionInstr

All Implemented Interfaces:

ResultInstr

public class ReceiveExceptionInstr
extends Instr
implements ResultInstr

Field Summary

Fields

Modifier and Type	Field and Description
boolean	checkType If true, the implementation (compiler/interpreter) may have to check the type of the received value and unwrap it to yield a Ruby-level exception.

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

EMPTY_OPERANDS

Constructor Summary

Constructors

Constructor and Description
ReceiveExceptionInstr(Variable result)
ReceiveExceptionInstr(Variable result, boolean checkType)

Method Summary

Methods

Modifier and Type	Method and Description
Instr	cloneForInlining(InlinerInfo 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).
Operand[]	getOperands()
Variable	getResult()
String	toString()
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, interpret, interpretAndGetNewIPC, isDead, markDead, markUnusedResult, renameVars, simplifyAndGetResult, simplifyOperands, transfersControl

Methods inherited from class java.lang.Object

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

Field Detail

checkType

public final boolean checkType

If true, the implementation (compiler/interpreter) may have to check the type of the received value and unwrap it to yield a Ruby-level exception. RaiseException values would have to be unwrapped, but other Throwables are passed right through. This flag is just an optimization to let the compiler not emit type-check and unwrapping code where it wont be necessary.

Constructor Detail

ReceiveExceptionInstr

public ReceiveExceptionInstr(Variable result,
                     boolean checkType)

ReceiveExceptionInstr

public ReceiveExceptionInstr(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

toString

public String toString()

Overrides:

toString in class Instr

cloneForInlining

public Instr cloneForInlining(InlinerInfo 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 requires renaming variables and labels to eliminate naming conflicts.

Overrides:

cloneForInlining 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.

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Instr