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

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

result

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

argsCount, callSite, 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 and Description
ArrayDerefInstr(Variable result, Operand obj, FrozenString arg0)

Method Summary

Methods

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) Does this instruction do anything the scope is interested in?
static ArrayDerefInstr	create(Variable result, Operand obj, FrozenString arg0)
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, create, discardResult, getResult, updateResult

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

blockInlining, canBeEval, cloneCallArgs, containsArgSplat, containsArgSplat, getArg1, getArgsCount, getCallArgs, getCallSite, getCallType, getClosureArg, getClosureArg, getName, getReceiver, hasLiteralClosure, inliningBlocked, isAllFixnums, isAllFloats, isPotentiallyRefined, prepareArguments, prepareArgumentsComplex, prepareArgumentsSimple, prepareBlock, setProcNew, simplifyOperands, 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, getIPC, getOperation, getRPC, getUsedVariables, hasSideEffects, interpretAndGetNewIPC, isDead, isDeletable, markDead, renameVars, setIPC, setRPC, simplifyAndGetResult, toString, transfersControl

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayDerefInstr

public ArrayDerefInstr(Variable result,
               Operand obj,
               FrozenString arg0)

Method Detail

create

public static ArrayDerefInstr create(Variable result,
                     Operand obj,
                     FrozenString arg0)

computeScopeFlags

public boolean computeScopeFlags(IRScope scope)

Description copied from class: Instr

Does this instruction do anything the scope is interested in?

Overrides:

computeScopeFlags in class CallBase

Returns:

true if it modified the scope.

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 OneOperandArgNoBlockCallInstr

getKey

public FrozenString getKey()