org.jruby.ir.operands

Class IRException

java.lang.Object

org.jruby.ir.operands.Operand

org.jruby.ir.operands.IRException

public class IRException
extends Operand

Field Summary

Fields

Modifier and Type	Field and Description
static IRException	BREAK_LocalJumpError
static IRException	NEXT_LocalJumpError
static IRException	REDO_LocalJumpError
static IRException	RETRY_LocalJumpError
static IRException	RETURN_LocalJumpError

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

EMPTY_ARRAY

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	IRException(String exceptionType)

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(InlinerInfo ii)
RuntimeException	getException(Ruby runtime)
String	toString()
void	visit(IRVisitor visitor)

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

fetchCompileTimeArrayElement, getSimplifiedOperand, getValue, hasKnownValue, retrieve

Methods inherited from class java.lang.Object

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

Field Detail

RETRY_LocalJumpError

public static final IRException RETRY_LocalJumpError

NEXT_LocalJumpError

public static final IRException NEXT_LocalJumpError

BREAK_LocalJumpError

public static final IRException BREAK_LocalJumpError

RETURN_LocalJumpError

public static final IRException RETURN_LocalJumpError

REDO_LocalJumpError

public static final IRException REDO_LocalJumpError

Constructor Detail

IRException

protected IRException(String exceptionType)

Method Detail

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(InlinerInfo ii)

Specified by:

cloneForInlining in class Operand

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

getException

public RuntimeException getException(Ruby runtime)

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Operand