org.jruby.ir.instructions

Class ToAryInstr

java.lang.Object

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.ResultBaseInstr

org.jruby.ir.instructions.ToAryInstr

All Implemented Interfaces:

FixedArityInstr, ResultInstr

public class ToAryInstr
extends ResultBaseInstr
implements FixedArityInstr

Field Summary

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

result

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

EMPTY_OPERANDS, operands

Constructor Summary

Constructors

Constructor and Description
ToAryInstr(Variable result, Operand array)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canBeDeleted(IRScope s) Can this instruction be deleted? LVA will preserve instructions based on whether operands (variables) are living but even if there are no living variables then the instruction itself may not be able to be removed during DCE for other reasons (like if it unconditionally has a side-effect or it happens to be living in a scope where a binding can escape and one of its operands is a local variable).
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 ToAryInstr	decode(IRReaderDecoder d)
void	encode(IRWriterEncoder e)
Operand	getArray()
Object	interpret(ThreadContext context, StaticScope currScope, DynamicScope currDynScope, IRubyObject self, Object[] temp)
Operand	simplifyAndGetResult(IRScope scope, Map<Operand,Operand> valueMap) This method takes as input a map of operands to their values, and outputs the result of this instruction.
void	visit(IRVisitor visitor)

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

getResult, updateResult

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

canRaiseException, cloneOperands, computeScopeFlags, getIPC, getOperands, getOperation, getRPC, getUsedVariables, hasSideEffects, interpretAndGetNewIPC, isDead, markDead, renameVars, setIPC, setRPC, simplifyOperands, toString, toStringNonOperandArgs, transfersControl

Methods inherited from class java.lang.Object

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

Constructor Detail

ToAryInstr

public ToAryInstr(Variable result,
          Operand array)

Method Detail

getArray

public Operand getArray()

canBeDeleted

public boolean canBeDeleted(IRScope s)

Description copied from class: Instr

Can this instruction be deleted? LVA will preserve instructions based on whether operands (variables) are living but even if there are no living variables then the instruction itself may not be able to be removed during DCE for other reasons (like if it unconditionally has a side-effect or it happens to be living in a scope where a binding can escape and one of its operands is a local variable).

Overrides:

canBeDeleted in class Instr

simplifyAndGetResult

public Operand simplifyAndGetResult(IRScope scope,
                           Map<Operand,Operand> valueMap)

Description copied from class: Instr

This method takes as input a map of operands to their values, and outputs the result of this instruction. If the value map provides a value for any of the instruction's operands the expectation is that the operand will be replaced with the simplified value. It is not required that it do so -- code correctness is not compromised by failure to simplify.

Overrides:

simplifyAndGetResult in class Instr

Parameters:

scope - where this instr exists

valueMap - Mapping from operands to their simplified values

Returns:

simplified result / output of this instruction

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 ResultBaseInstr

decode

public static ToAryInstr decode(IRReaderDecoder d)

interpret

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

Overrides:

interpret in class Instr

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Instr