org.jruby.ir.instructions

Class BuildBackrefInstr

java.lang.Object

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.ResultBaseInstr

org.jruby.ir.instructions.NoOperandResultBaseInstr

org.jruby.ir.instructions.BuildBackrefInstr

All Implemented Interfaces:

ResultInstr

public class BuildBackrefInstr
extends NoOperandResultBaseInstr

Field Summary

Fields

Modifier and Type	Field and Description
char	type

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

result

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

EMPTY_OPERANDS

Constructor Summary

Constructors

Constructor and Description
BuildBackrefInstr(Variable result, char t)

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).
boolean	computeScopeFlags(IRScope scope, java.util.EnumSet<IRFlags> flags) Does this instruction do anything the scope is interested in?
static BuildBackrefInstr	decode(IRReaderDecoder d)
void	encode(IRWriterEncoder e)
java.lang.Object	interpret(ThreadContext context, StaticScope currScope, DynamicScope currDynScope, IRubyObject self, java.lang.Object[] temp)
java.lang.String[]	toStringNonOperandArgs()
void	visit(IRVisitor visitor)

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

getOperands, setOperand

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

getResult, updateResult

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

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

Methods inherited from class java.lang.Object

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

Field Detail

type

public final char type

Constructor Detail

BuildBackrefInstr

public BuildBackrefInstr(Variable result,
                         char t)

Method Detail

encode

public void encode(IRWriterEncoder e)

Overrides:

encode in class ResultBaseInstr

decode

public static BuildBackrefInstr decode(IRReaderDecoder d)

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.

toStringNonOperandArgs

public java.lang.String[] toStringNonOperandArgs()

Overrides:

toStringNonOperandArgs in class Instr

interpret

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

Overrides:

interpret in class Instr

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Instr

computeScopeFlags

public boolean computeScopeFlags(IRScope scope,
                                 java.util.EnumSet<IRFlags> flags)

Description copied from class: Instr

Does this instruction do anything the scope is interested in?

Overrides:

computeScopeFlags in class Instr

Returns:

true if it modified the scope or set any flags.