GVarAliasInstr.java
- package org.jruby.ir.instructions;
- import org.jruby.ir.IRVisitor;
- import org.jruby.ir.Operation;
- import org.jruby.ir.operands.Operand;
- import org.jruby.ir.transformations.inlining.CloneInfo;
- import org.jruby.parser.StaticScope;
- import org.jruby.runtime.DynamicScope;
- import org.jruby.runtime.ThreadContext;
- import org.jruby.runtime.builtin.IRubyObject;
- import java.util.Map;
- public class GVarAliasInstr extends Instr implements FixedArityInstr {
- private Operand newName;
- private Operand oldName;
- public GVarAliasInstr(Operand newName, Operand oldName) {
- super(Operation.GVAR_ALIAS);
- this.newName = newName;
- this.oldName = oldName;
- }
- public Operand getNewName() {
- return newName;
- }
- public Operand getOldName() {
- return oldName;
- }
- @Override
- public String toString() {
- return getOperation().toString() + "(" + newName + ", " + oldName + ")";
- }
- @Override
- public Operand[] getOperands() {
- return new Operand[] { newName, oldName };
- }
- @Override
- public void simplifyOperands(Map<Operand, Operand> valueMap, boolean force) {
- oldName = oldName.getSimplifiedOperand(valueMap, force);
- newName = newName.getSimplifiedOperand(valueMap, force);
- }
- @Override
- public Instr clone(CloneInfo ii) {
- return new GVarAliasInstr(newName.cloneForInlining(ii), oldName.cloneForInlining(ii));
- }
- @Override
- public Object interpret(ThreadContext context, StaticScope currScope, DynamicScope currDynScope, IRubyObject self, Object[] temp) {
- String newNameString = newName.retrieve(context, self, currScope, currDynScope, temp).toString();
- String oldNameString = oldName.retrieve(context, self, currScope, currDynScope, temp).toString();
- context.runtime.getGlobalVariables().alias(newNameString, oldNameString);
- return null;
- }
- @Override
- public void visit(IRVisitor visitor) {
- visitor.GVarAliasInstr(this);
- }
- }