Top Constructors Methods
org.jruby.ir.instructions

public Class AliasInstr

extends TwoOperandInstr
implements FixedArityInstr
Class Inheritance
All Implemented Interfaces
org.jruby.ir.instructions.FixedArityInstr
Imports
org.jruby.ir.IRFlags, .IRScope, .IRVisitor, .Operation, org.jruby.ir.operands.Operand, org.jruby.ir.persistence.IRReaderDecoder, .IRWriterEncoder, org.jruby.ir.runtime.IRRuntimeHelpers, org.jruby.ir.transformations.inlining.CloneInfo, org.jruby.parser.StaticScope, org.jruby.runtime.DynamicScope, .ThreadContext, org.jruby.runtime.builtin.IRubyObject, java.util.EnumSet

Constructor Summary

AccessConstructor and Description
public
AliasInstr(Operand newName, Operand oldName)

Method Summary

Modifier and TypeMethod and Description
public Instr
clone(CloneInfo
This object manages renaming of variables and labels, handles args and return values.
ii)

Implements abstract org.jruby.ir.instructions.Instr.clone.

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).

public boolean
computeScopeFlags(IRScope scope, EnumSet<IRFlags> flags)

Overrides org.jruby.ir.instructions.Instr.computeScopeFlags.

Does this instruction do anything the scope is interested in?

public static AliasInstr
decode(IRReaderDecoder d)

public void
encode(IRWriterEncoder e)

Overrides org.jruby.ir.instructions.Instr.encode.

public Operand
getNewName()

public Operand
getOldName()

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

Overrides org.jruby.ir.instructions.Instr.interpret.

public void
visit(IRVisitor visitor)

Overrides org.jruby.ir.instructions.Instr.visit.

Inherited from org.jruby.ir.instructions.TwoOperandInstr:
getOperand1getOperand2getOperandssetOperandsetOperand1setOperand2

Constructor Detail

AliasInstrback to summary
public AliasInstr(Operand newName, Operand oldName)

Method Detail

cloneback to summary
public Instr clone(CloneInfo ii)

Implements abstract org.jruby.ir.instructions.Instr.clone.

Doc from org.jruby.ir.instructions.Instr.clone.

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.

Parameters
ii:CloneInfo

This object manages renaming of variables and labels, handles args and return values.

Returns:Instr

a new instruction that can be used in the target scope.

Annotations
@Override
computeScopeFlagsback to summary
public boolean computeScopeFlags(IRScope scope, EnumSet<IRFlags> flags)

Overrides org.jruby.ir.instructions.Instr.computeScopeFlags.

Doc from org.jruby.ir.instructions.Instr.computeScopeFlags.

Does this instruction do anything the scope is interested in?

Returns:boolean

true if it modified the scope or set any flags.

Annotations
@Override
decodeback to summary
public static AliasInstr decode(IRReaderDecoder d)
encodeback to summary
public void encode(IRWriterEncoder e)

Overrides org.jruby.ir.instructions.Instr.encode.

Annotations
@Override
getNewNameback to summary
public Operand getNewName()
getOldNameback to summary
public Operand getOldName()
interpretback to summary
public Object interpret(ThreadContext context, StaticScope currScope, DynamicScope currDynScope, IRubyObject self, Object[] temp)

Overrides org.jruby.ir.instructions.Instr.interpret.

Annotations
@Override
visitback to summary
public void visit(IRVisitor visitor)

Overrides org.jruby.ir.instructions.Instr.visit.

Annotations
@Override