package org.jruby.ir.instructions;
import org.jruby.RubyClass;
import org.jruby.ir.IRVisitor;
import org.jruby.ir.Operation;
import org.jruby.ir.operands.Operand;
import org.jruby.ir.operands.Variable;
import org.jruby.ir.transformations.inlining.CloneInfo;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.runtime.ivars.VariableAccessor;
public class GetFieldInstr extends GetInstr implements FixedArityInstr {
private VariableAccessor accessor = VariableAccessor.DUMMY_ACCESSOR;
public GetFieldInstr(Variable dest, Operand obj, String fieldName) {
super(Operation.GET_FIELD, dest, obj, fieldName);
}
@Override
public Instr clone(CloneInfo ii) {
return new GetFieldInstr(ii.getRenamedVariable(getResult()),
getSource().cloneForInlining(ii), getRef());
}
public VariableAccessor getAccessor(IRubyObject o) {
RubyClass cls = o.getMetaClass().getRealClass();
VariableAccessor localAccessor = accessor;
IRubyObject value;
if (localAccessor.getClassId() != cls.hashCode()) {
localAccessor = cls.getVariableAccessorForRead(getRef());
accessor = localAccessor;
}
return localAccessor;
}
@Override
public void visit(IRVisitor visitor) {
visitor.GetFieldInstr(this);
}
}