Package org.jruby.ir.instructions

Class ReceiveKeywordsInstr

java.lang.Object

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.ResultBaseInstr

org.jruby.ir.instructions.NoOperandResultBaseInstr

org.jruby.ir.instructions.ReceiveKeywordsInstr

All Implemented Interfaces:

ArgReceiver, ResultInstr

public class ReceiveKeywordsInstr
extends NoOperandResultBaseInstr
implements ArgReceiver

Gets the keyword arg (or representation of what might be holding keyword args). The result of this is passed into the other keyword arg instructions to get what those instrs are interested in. One intent of this result is that it can be mutable so it can toggle off keyword arg flags early in the method before any exceptions or side-effects in the method can occur. It also can remove key/value pairs as individual keyword instructions execute. After all individual instructions have executed anything left is either kwrest or an arity error.

Field Summary

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	Description
ReceiveKeywordsInstr(Variable result, boolean hasRestArg, boolean acceptsKeywords)

Method Summary

Modifier and Type	Method	Description
boolean	acceptsKeywords()
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 ReceiveKeywordsInstr	decode(IRReaderDecoder d)
void	encode(IRWriterEncoder e)
boolean	hasRestArg()
IRubyObject	receiveArg(ThreadContext context, IRubyObject self, DynamicScope currDynScope, StaticScope currScope, Object[] temp, IRubyObject[] args, boolean ruby2keywords)
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, computeScopeFlags, dumpableFields, getOperation, getUsedVariables, hasSideEffects, interpret, interpretAndGetNewIPC, isDead, isDeletable, markDead, renameVars, simplifyInstr, simplifyOperands, simplifyOperands, toString, toStringNonOperandArgs, transfersControl

Methods inherited from class java.lang.Object

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

Constructor Details

ReceiveKeywordsInstr

public ReceiveKeywordsInstr(Variable result,
 boolean hasRestArg,
 boolean acceptsKeywords)

Method Details

hasRestArg

public boolean hasRestArg()

acceptsKeywords

public boolean acceptsKeywords()

encode

public void encode(IRWriterEncoder e)

Overrides:

encode in class ResultBaseInstr

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.

decode

public static ReceiveKeywordsInstr decode(IRReaderDecoder d)

receiveArg

public IRubyObject receiveArg(ThreadContext context,
 IRubyObject self,
 DynamicScope currDynScope,
 StaticScope currScope,
 Object[] temp,
 IRubyObject[] args,
 boolean ruby2keywords)

Specified by:

receiveArg in interface ArgReceiver

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Instr