package org.jruby.compiler.ir.instructions;
import org.jruby.RubyClass;
import org.jruby.RubyClass.VariableAccessor;
import org.jruby.compiler.ir.Operation;
import org.jruby.compiler.ir.operands.Label;
import org.jruby.compiler.ir.operands.Operand;
import org.jruby.compiler.ir.operands.Variable;
import org.jruby.compiler.ir.representations.InlinerInfo;
import org.jruby.interpreter.InterpreterContext;
import org.jruby.runtime.builtin.IRubyObject;
public class GetFieldInstr extends GetInstr {
public GetFieldInstr(Variable dest, Operand obj, String fieldName) {
super(Operation.GET_FIELD, dest, obj, fieldName);
}
public Instr cloneForInlining(InlinerInfo ii) {
return new GetFieldInstr(ii.getRenamedVariable(result),
getSource().cloneForInlining(ii), getName());
}
@Override
public Label interpret(InterpreterContext interp, IRubyObject self) {
IRubyObject object = (IRubyObject) getSource().retrieve(interp);
RubyClass clazz = object.getMetaClass().getRealClass();
// FIXME: Should add this as a field for instruction
VariableAccessor accessor = clazz.getVariableAccessorForRead(getName());
Object v = (accessor == null) ? null : accessor.get(object);
getResult().store(interp, v == null ? interp.getRuntime().getNil() : v);
return null;
}
}