Package org.jruby.ir.instructions

Class LoadLocalVarInstr

java.lang.Object

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.ResultBaseInstr

org.jruby.ir.instructions.OneOperandResultBaseInstr

org.jruby.ir.instructions.LoadLocalVarInstr

All Implemented Interfaces:

FixedArityInstr, ResultInstr

public class LoadLocalVarInstr
extends OneOperandResultBaseInstr
implements FixedArityInstr

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
LoadLocalVarInstr(TemporaryLocalVariable result, LocalVariable lvar, IRScope scope)

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 LoadLocalVarInstr	decode(IRReaderDecoder d)
void	decrementLVarScopeDepth()
void	encode(IRWriterEncoder e)
LocalVariable	getLocalVar()	This is the variable that is being loaded from the scope.
IRScope	getScope()
Object	interpret(ThreadContext context, StaticScope currScope, DynamicScope currDynScope, IRubyObject self, Object[] temp)
protected void	simplifyOperands(Map<Operand,Operand> valueMap, boolean force)	getLocalVar is saved for location and should not be simplified so we still know its original depth/offset.
String[]	toStringNonOperandArgs()
void	visit(IRVisitor visitor)

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

getOperand1, getOperands, setOperand, setOperand1

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, 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

Constructor Details

LoadLocalVarInstr

public LoadLocalVarInstr(TemporaryLocalVariable result,
 LocalVariable lvar,
 IRScope scope)

Method Details

getLocalVar

public LocalVariable getLocalVar()

This is the variable that is being loaded from the scope. This variable doesn't participate in the computation itself. We just use it as a proxy for its (a) name (b) offset (c) scope-depth.

getScope

public IRScope getScope()

simplifyOperands

protected void simplifyOperands(Map<Operand,Operand> valueMap,
 boolean force)

getLocalVar is saved for location and should not be simplified so we still know its original depth/offset.

Overrides:

simplifyOperands in class Instr

decrementLVarScopeDepth

public void decrementLVarScopeDepth()

toStringNonOperandArgs

public String[] toStringNonOperandArgs()

Overrides:

toStringNonOperandArgs in class Instr

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.

encode

public void encode(IRWriterEncoder e)

Overrides:

encode in class OneOperandResultBaseInstr

decode

public static LoadLocalVarInstr decode(IRReaderDecoder d)

interpret

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

Overrides:

interpret in class Instr

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Instr