Package org.jruby.ir.instructions

Class ArrayDerefInstr

java.lang.Object

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.NOperandInstr

org.jruby.ir.instructions.CallBase

org.jruby.ir.instructions.CallInstr

org.jruby.ir.instructions.specialized.OneOperandArgNoBlockCallInstr

org.jruby.ir.instructions.ArrayDerefInstr

All Implemented Interfaces:

ClosureAcceptingInstr, ResultInstr, Site

public class ArrayDerefInstr
extends OneOperandArgNoBlockCallInstr

Instruction representing Ruby code of the form: "a['str']" which is equivalent to: a.[]('str'). Because a Hash receiver would immediately freeze the string, we can freeze and dedup the string ahead of time and call [] directly.

Field Summary

Fields

Modifier and Type	Field	Description
static final ByteList	AREF
static final ByteList	ASET

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

result

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

argsCount, callSite, callSiteCounter, callSiteId, hasClosure, name

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

operands

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

EMPTY_OPERANDS

Constructor Summary

Constructors

Constructor	Description
ArrayDerefInstr(IRScope scope, Variable result, Operand obj, FrozenString arg0, int flags)
ArrayDerefInstr(IRScope scope, Variable result, Operand obj, FrozenString arg0, int flags, CallSite callSite, long callSiteId)

Method Summary

Modifier and Type	Method	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 ArrayDerefInstr	create(IRScope scope, Variable result, Operand obj, FrozenString arg0, int flags)
static ArrayDerefInstr	decode(IRReaderDecoder d)
void	encode(IRWriterEncoder e)
FrozenString	getKey()
Object	interpret(ThreadContext context, StaticScope currScope, DynamicScope dynamicScope, IRubyObject self, Object[] temp)
void	visit(IRVisitor visitor)

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

create, getResult, updateResult

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

blockInlining, canBeEval, cloneCallArgs, computeScopeFlags, containsArgSplat, getArg1, getArgsCount, getCallArgs, getCallSite, getCallSiteFor, getCallSiteId, getCallType, getClosureArg, getClosureArg, getFlags, getId, getName, getReceiver, hasLiteralClosure, inliningBlocked, isAllFixnums, isAllFloats, isPotentiallyRefined, prepareArguments, prepareArgumentsComplex, prepareArgumentsSimple, prepareBlock, setCallSiteId, simplifyOperands, splatMap, targetRequiresCallersBinding, targetRequiresCallersFrame, toStringNonOperandArgs

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

getOperands, setOperand

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

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

Methods inherited from class java.lang.Object

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

Field Details

AREF

public static final ByteList AREF

ASET

public static final ByteList ASET

Constructor Details

ArrayDerefInstr

public ArrayDerefInstr(IRScope scope,
 Variable result,
 Operand obj,
 FrozenString arg0,
 int flags,
 CallSite callSite,
 long callSiteId)

ArrayDerefInstr

public ArrayDerefInstr(IRScope scope,
 Variable result,
 Operand obj,
 FrozenString arg0,
 int flags)

Method Details

create

public static ArrayDerefInstr create(IRScope scope,
 Variable result,
 Operand obj,
 FrozenString arg0,
 int flags)

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.

Overrides:

clone in class OneOperandArgNoBlockCallInstr

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 CallInstr

decode

public static ArrayDerefInstr decode(IRReaderDecoder d)

interpret

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

Overrides:

interpret in class OneOperandArgNoBlockCallInstr

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class CallInstr

getKey

public FrozenString getKey()