org.jruby.ir.instructions

Class LoadFrameClosureInstr

java.lang.Object

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.ResultBaseInstr

org.jruby.ir.instructions.NoOperandResultBaseInstr

org.jruby.ir.instructions.LoadFrameClosureInstr

All Implemented Interfaces:

FixedArityInstr, ResultInstr

public class LoadFrameClosureInstr
extends NoOperandResultBaseInstr
implements FixedArityInstr

Load the block passed to this scope via the on-heap frame (or similar cross-call structure). This is typically used to access the "yieldable" target for blocks and evals. Only used when within a scope that will use an on-heap frame.

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 and Description
LoadFrameClosureInstr(Variable result)

Method Summary

Methods

Modifier and Type	Method and Description
Instr	clone(CloneInfo info) 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 LoadFrameClosureInstr	decode(IRReaderDecoder d)
void	visit(IRVisitor visitor)

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

getOperands, setOperand

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

encode, getResult, updateResult

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

LoadFrameClosureInstr

public LoadFrameClosureInstr(Variable result)

Method Detail

clone

public Instr clone(CloneInfo info)

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:

info - 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 LoadFrameClosureInstr decode(IRReaderDecoder d)

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 Instr

Returns:

true if it modified the scope.

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Instr